ABLIC Inc., Rev.2.2_02

Transcription

1 2-WIE DIGIL EMPEUE ENO BLIC Inc., ev.2.2_02 is a 2-wire serial I/O digital temperature sensor. his IC measures temperature with resolution of C without external parts. his IC is ideal for wide-ranging temperature measurement for various applications. temperature sensor, a reference voltage generation circuit, a type /D converter and interface bus are integrated in a chip, and packages N-6 and O-23-6 available for this IC. Features Low voltage operation Low current consumption High accuracy emperature resolution Digital output Maximum operating frequency Low power supply voltage detection circuit Lead-free, n 100%, halogen-free *1 : V DD (min.) = 2.7 V : 45 typ. (25 C) 1 typ. (25 C at shutdown) : 2.0 C (max.) 25 C to 85 C 3.0 C (max.) 40 C to 125 C : C : 2-wire serial interface : 400 khz *1. efer to Product Name tructure for details. pplications emperature monitor for power supply emperature monitor for battery ir conditioning system Various electronics devices Packages N-6 O

2 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 Block Diagram CL emp ensor Control Logic D V /D Converter erial Interface D0 D1 Oscillator egister VDD Figure 1 2

3 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO Product Name tructure 1. Product name (1) N I61 U Environmental code U : Lead-free (n 100%), halogen-free Package name (abbreviated) and IC packing specification *1 I61 : N-6, ape Product name *1. efer to the tape drawing. (2) O M61 x Environmental code U : Lead-free (n 100%), halogen-free : Lead-free, halogen-free Package name (abbreviated) and IC packing specification *1 M61 : O-23-6, ape Product name *1. efer to the tape drawing. 2. Package Package Name Drawing Code Package ape eel Land N-6 PG006--P-D PG006--C-D PG006---D PG006--L-D O-23-6 MP006--P-D MP006--C-D MP006---D 3. Product name list able 1 Product name Package I61U N M61y O-23-6 emark 1 y: or U 2. Please select products of environmental code = U for n 100%, halogen-free products. 3

4 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 Pin Configuration N-6 op view Figure 2 able 2 Pin No. ymbol Description 1 D1 ddress input 2 V GND 3 CL Input for serial clock 4 D I/O for serial data 5 D0 ddress input 6 VDD Power supply emark ee Dimensions for details of the package drawings. O-23-6 op view able 3 Pin No. ymbol Description 1 CL Input for serial clock 2 V GND 3 D1 ddress input 4 VDD Power supply 5 D0 ddress input 6 D I/O for serial data emark ee Dimensions for details of the package drawings. Figure 3 4

5 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO Pin Functions 1. D0, D1 pins (ddress input) o set the slave address, connect the D0 and D1 pins to V / V DD or set them open. When connecting them to V / V DD, set the value for a resistor at 500 or less. When setting them open, avoid to apply noise. he value for capacitor is 100 pf or less for the D0 and D1 pins. Users are able to set 8 types of slave address by using the combination of the D0 and D1 pins. he verifies if the slave address set by user matches with the slave address transmitted from the master device or not, so that one is selected from the devices connected onto the bus. 2. D pin (I/O for serial data) he D pin transmits serial data bi-directionally, is comprised of a signal input pin and a pin with Nch open drain output. In use, generally, connect the D line to any other device which has the open-drain or open-collector output with Wired-O connection by pulling up to V DD by a resistor. Figure 4 shows the relation with an output load. Maximum value of pull-up resistor (k) f CL =400 khz Value of load capacity (pf) Figure 4 Output Load 3. CL pin (Input for serial clock) he CL pin is an input pin for serial clock, processes a signal at a rising / falling edge of CL clock. Pay attention fully to the rising / falling time and comply with specifications. 5

6 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 Equivalent Circuits of Input, I/O pins he CL, D0 and D1 pins are CMO input pins. he D pin works as both Nch open drain output pin and CMO input pin. he equivalent circuits are follows. D0, D1 Figure 5 D0, D1 Pins D Figure 6 D Pin CL Figure 7 CL Pin 6

7 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO bsolute Maximum atings able 4 (a = 25 C unless otherwise specified) Item ymbol atings Unit Power supply voltage (V = 0 V) V DD V 0.3 to V 6.0 V CL, D pin voltage V CL, V D V 0.3 to V 6.0 V D0, D1 pin voltage V D0, V D1 V 0.3 to V DD 0.3 V Power dissipation N-6 P D 400 *1 mw O *1 mw Operation ambient temperature opr 40 to +125 C torage temperature stg 55 to +150 C *1. When mounted on board [Mounted board] (1) Board size : mm 76.2 mm t1.6 mm (2) Board name : JEDEC NDD51-7 Caution he absolute maximum ratings are rated values exceeding which the product could suffer physical damage. hese values must therefore not be exceeded under any conditions. 7

8 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 Pin Capacitance able 5 (a = 25 C, f = 1.0 MHz, V DD = 5.0 V) Item ymbol Condition Min. Max. Unit Input capacitance C IN V IN = 0 V (CL, D0, D1) 10 pf I/O capacitance C I/O V IN = 0 V (D) 10 pf emperature Characteristics able 6 (a = 25 C, V = 0 V unless otherwise specified) Item ymbol Condition Min. yp. Max. Unit Operation ambient temperature opr C emperature accuracy CC1 25 C to +85 C C CC2 40 C to +125 C C emperature resolution E C /D resolution EO 12 bits emperature update time *1 t CNV ms *1. lthough within this temperature update time, reading data is possible as many times as needed. DC Electrical Characteristics able 7 (a = 25 C, V = 0 V unless otherwise specified) Item ymbol Condition Min. yp. Max. Unit Power supply voltage V DD V I DD1 erial bus in non-active Current consumption at operation Current consumption at shutdown I DD2 I DD3 I DD4 erial bus in active CL clock frequency = 400 khz V DD = 3.3 V 80 erial bus in non-active Connect CL, D to V or VDD erial bus in active CL clock frequency = 400 khz 30 V DD = 3.3 V High level input voltage 1 V IH1 CL, D 0.7V DD V 6.0 V High level input voltage 2 V IH2 D0, D1 0.9V DD V DD V Low level input voltage 1 V IL1 CL, D V 0.3V DD V Low level input voltage 2 V IL2 D0, D1 V 0.1V DD V Input leakage current I LI V IN = 0 V to 5.5 V (CL, D0, D1) I/O leakage current I LO V IN = 0 V to 5.5 V (D) Low level output voltage V OL I OL = 3 m V 0.4 V 8

9 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO C Electrical Characteristics able 8 Measurement Conditions Input voltage I/O reference voltage Input pulse voltage Input pulse rise/fall time V IH = 0.8V DD, V IL = 0.2V DD 20 ns or less 0.8V DD 0.7V DD Output reference voltage Output load V OH = 0.7V DD, V OL = 0.3V DD 100 pf 0.2V DD 0.3V DD Figure 8 C Measurement I/O Waveform able 9 (a = 25 C, V = 0 V unless otherwise specified) Item ymbol Min. yp. Max. Unit Clock frequency f CL 400 khz Bus release time t BUF 600 ns tart condition hold time t HD. 600 ns tart condition setup time t U. 600 ns top condition setup time t U.O 600 ns Data input hold time t HD.D 0 ns Data input setup time t U.D 100 ns CL clock time L t LOW 1300 ns CL clock time H t HIGH 600 ns CL, D falling time t F 300 ns CL, D rising time t 300 *1 ns 1000 *2 ns D output delay time t ns D output hold time t DH 50 ns ddress input hold time t HDD 0 ns ddress input setup time t UD 0 ns Noise suppression time t I 50 ns *1. f CL 100 khz *2. f CL 100 khz 9

10 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 t F t HIGH t LOW t CL t U.O t U. t HD. t HD.D t U.D D IN t t DH t BUF D OU Figure 9 CL tart condition top condition D X X X t UD t HDD D0, D1 (0,1 input) D0, D1 (open) Figure 10 10

11 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO egisters 1. Configuration of register he has a temperature register for reading temperature data, a configuration register to set operations of the and a pointer register that sets which register will operate ead/write. Pointer register D emperature register Interface circuit CL Configuration register Figure 11 Configuration of egister 2. Pointer register he pointer register is an 8-bit register that sets which register will operate ead/write. Write 00h in the pointer register enables to ead the temperature register. Write 01h enables to ead/write the configuration register. he value is 00h after power-up/reset of the pointer register. Users are not able to read the point register directly. When you are uncertain of the value in the pointer register, designate the pointer register again P0 MB Figure 12 Configuration of Pointer egister LB 11

12 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 3. emperature register he temperature register is a 12-bit ead-only register and stores the latest temperature data. o gain all data, ead 2 bytes. Its first 12 bits are temperature data and 0 is output in other bits. he temperature register outputs 0C until the first conversion has finished after power-up or reset. First byte econd byte MB Figure 13 Configuration of emperature egister LB he 12 bits 11 to 0 show temperature. he highest bit of temperature data (11) shows positive/negative in temperature. Its resolution is C. able 10 shows the typical temperature and temperature data. It is unnecessary to receive all data in the temperature register. Users are able to finish transmission by inputting a stop condition without sending an acknowledgment signal back from the master device, after ead the first byte in the temperature register. able 10 emperature Data emperature data emperature Binary system (C) Hexadecimal (11 0) D B FFC E D80 12

13 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO 4. Configuration register he configuration register is an 8-bit ead/write register, and stores bit which controls operations of the eries. he ead/write operation can be performed from MB. ll bits are 0 after power-up/reset of this configuration register. In case of rewriting bit data except D, O bits, the bit data will be omitted. O D MB Figure 14 Configuration egister LB 4. 1 hutdown mode (D) Write 1 in the shutdown mode bit (D) in the configuration register stops the circuits except the serial interface, thus enables to reduce power consumption. By this mode, current comsumption will decrease to 1 (typ.) or less. his mode is valid after the current conversion. By Write 0 in the shutdown mode bit (D), the returns to the normal status in which the eries continues updating temperature data. Users can always read the latest temperature data One-shot mode (O) he features the one-shot temperature measure mode. In the shutdown mode, By Write 1 in the one-shot mode bit (O) in the configuration register, the starts converting temperature that is done only once. he finishes updating data in the temperature register after this single temperature conversion, the returns to the shutdown mode again. When continuous temperature monitoring is unnecessary, this mode reduces consumption power. Write 1 in the one-shot mode bit (O) in the normal status, the one-shot mode bit (O) keeps 1 until the current temperature data has finished updating. fter this updating, the one-shot mode bit (O) is set to 0 to indicate the upload completion. 13

14 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 Operation he is a digital temperature sensor with 2-wire serial interface. By transmission using the CL and D pins, users are able to ead temperature data and set the various modes for the. Connect a bypass capacitor of 0.1 F between the VDD and V pins for proper temperature data. 1. tart condition start condition starts by changing the D line from H to L while the CL line is H. ll operations start with a start condition. 2. top condition stop condition starts by changing the D line from L to H while the CL line is H. During ead sequence if the receives a stop condition, its ead operation is interrupted. During Write sequence if the receives a stop condition, the finishes installing Write data. H H CL D tart condition top condition Figure 15 tart/top Conditions 14

15 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO 3. Data transmission Data is transmitted by changing the D line while the CL line is L. If the D line changes while the CL line is H, the goes in the start or stop condition status. CL L L L D Figure 16 Data ransmission iming 4. cknowledgment Data is transmitted sequentially in 8-bit. Changing the D line to L indicates that the devices on the system bus have received data, thus the devices send an acknowledgment signal back during the 9th clock of cycle. CL (Input to ) D (Output from master device) D (Output from ) cknowledgment output tart condition Figure 17 cknowledgment Output iming 15

16 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 5. Device addressing o start the transmission, the master device on the system generates a start condition for the slave address. fter that, the master device transmits the 7-bit slave address and the 1-bit ead/write instruction code to the D bus. he higher 4 bits of the slave address are device code, and are fixed to he next 3 bits (2, 1, 0) are used to select the devices on the system bus, and they are compared with the slave address which is set beforehand by the address input pins (D1, D0). If the comparison result matches, the eries sends an acknowledgment signal back at the 9th clock of cycle. able 11 shows the settings for the address input pins (D1, D0) and the slave address. he the does not send an acknowledgment signal back unless the slave address matches. able 11 ettings for ddress Input Pin and lave ddress ettings for address input pin lave address D1 pin D0 pin Device code Open Open Open Open Device code lave address eries MB / W LB Figure 18 lave ddress 16

17 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO 6. Configuration register s Write operation When the receives the 7-bit slave address and the ead/write instruction code 0 after receiving a start condition, it generates an acknowledgment signal. Next, it receives the 8-bit pointer register s data, and generates an acknowledgment signal. fter receiving 8-bit Write data, it rewrites data in the configuration register designated by user, and generates an acknowledgment signal. It receives a stop condition so that the Write operation is finished. DEVICE DDE W I E POINE EGIE D O P D LINE D7 D6 D5 D4 D3 D2 D1 D0 M B L B / W C K C K C K Figure 19 Write Operation 7. ead operation 7. 1 ead by register-designation o read data in the register set by user arbitrarily, use this function ead by register designation. Beforehand, do dummy write as follows to set the pointer register. When the receives 7-bit slave address and the ead/write instruction code 0 after receiving a start condition, it generates an acknowledgment signal. Next, the receives 8-bit pointer register s data and generates an acknowledgment signal. By these operations, users can set the pointer register. nd the receives 7-bit slave address and the ead/write instruction code 1 after receiving a start condition, it generates an acknowledgment signal. 8-bit data in the register designated by user will be output synchronizing with the CL clock from the eries. fter these operations, the master device sends a stop condition not outputting an acknowledgment signal so that the ead operation is finished. D LINE W I E M B DEVICE DDE L B / W C K POINE EGIE C K M B DEVICE DDE E D L B / W C K CK from Master Device D C K NO CK from Master Device D O P DUMMY WIE Figure 20 When eading emperature egister 17

18 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 D LINE DEVICE DDE W I E POINE EGIE DEVICE DDE E D 1 NO CK from Master Device D O D O P M B L B / W C K C K M B L B / W C K DUMMY WIE Figure 21 When eading Configuration egister 7. 2 Current egister ead he maintains values of the pointer register s data that is accessed by the most recently in both ead and Write. s long as the master device recognizes values of the pointer s data, users can read current data in the pointer register without designation. his is current register read. In case that the s pointer register is indicating the temperature register, the receives 7-bit slave address and the ead/write instruction code 1 after receiving a start condition, it generates an acknowledgment signal. Next, the first byte data in the temperature register will be output from the synchronizing with the CL clock. fter that, the master device outputs an acknowledgment signal, the outputs 4 bits from MB of the second byte in the temperature register, and 4 bits from LB are zero. fter these operations, the master device sends a stop condition so that the ead operation is finished. D LINE M B DEVICE DDE L B E D / W C K CK from Master Device D C K Figure 22 Current egister ead D O P 8. General call fter 2-wire interface general call ( ), the sends back an acknowledgment signal when the 8th bit is set to 0. nd when the second byte is , the reinstalls the status of the D0 and D1 pins and sends back an acknowledgment signal without resetting the inside status. But when the second byte is , the resets its inside all, and goes back itself to the status immediately after power-up. 18

19 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO Operation during the Low Power upply Voltage he has a low power supply voltage detection circuit, stops the interface circuit when the power supply voltage drops to the level of the detection voltage or less. he detection voltage is 1.9 V typ., the release voltage is 2.0 V typ. Power supply voltage Detection voltage 1.9 V typ. elease voltage 2.0 V typ. eset internal circuit Interface circuit stops Figure 23 Operation during the Low Power upply Voltage How to eset Which status the is in, users can reset the externally by following two ways. et the power supply voltage at 0 V once in order to get it back to the range of operating voltage again. Have a period at least 10 ms or more to set the power supply voltage at 0 V. elease the bus, after that, do the reset instruction for general call. First, input a start condition and send the 9 clocks (dummy clock) to the CL line. During this, set the master device to input H to the D line. By this operation the stops outputting an acknowledgment signal or outputting data, then input a start condition and a stop condition. fter that, send a general call ( ) and send 0 as the 8th bit. nd send as the second byte. Consequently, the resets its inside status. tart condition Dummy clock tart condition top condition CL D Output from master device Figure 24 How to elease Bus 19

20 2-WIE DIGIL EMPEUE ENO ev. 2.2_02 Precaution et a bypass capacitor of approx. 0.1 F between VDD and V pins, nearest to the IC for stabilization. he application conditions for the input voltage, output voltage, and load current should not exceed the package power dissipation. Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. BLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement by products, including this IC, of patents owned by a third party. 20

21 ev. 2.2_02 2-WIE DIGIL EMPEUE ENO Characteristics (ypical Data) 1. Current consumption at operation (I DD1 ) emperature IDD1 [] VDD = 5 V VDD = 2.7 V a [ C] 2. Current consumption at shutdown (I DD3 ) emperature IDD3 [] VDD = 2.7 V VDD = 5 V a [ C] emperature accuracy ( C ) emperature 4. emperature update time (t CNV ) emperature CC [ C] typical units a [ C] tcnv [ms] VDD = 5 V VDD = 2.7 V a [ C] 5. Current consumption at serial bus active (I DD2 ) Clock frequency IDD2 [] a = 25 C a = 125 C a = 40 C fcl [khz] 21

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29 Disclaimers (Handling Precautions) 1. ll the information described herein (product data, specifications, figures, tables, programs, algorithms and application circuit examples, etc.) is current as of publishing date of this document and is subject to change without notice. 2. he circuit examples and the usages described herein are for reference only, and do not guarantee the success of any specific mass-production design. BLIC Inc. is not responsible for damages caused by the reasons other than the products described herein (hereinafter "the products") or infringement of third-party intellectual property right and any other right due to the use of the information described herein. 3. BLIC Inc. is not responsible for damages caused by the incorrect information described herein. 4. Be careful to use the products within their specified ranges. Pay special attention to the absolute maximum ratings, operation voltage range and electrical characteristics, etc. BLIC Inc. is not responsible for damages caused by failures and / or accidents, etc. that occur due to the use of the products outside their specified ranges. 5. When using the products, confirm their applications, and the laws and regulations of the region or country where they are used and verify suitability, safety and other factors for the intended use. 6. When exporting the products, comply with the Foreign Exchange and Foreign rade ct and all other export-related laws, and follow the required procedures. 7. he products must not be used or provided (exported) for the purposes of the development of weapons of mass destruction or military use. BLIC Inc. is not responsible for any provision (export) to those whose purpose is to develop, manufacture, use or store nuclear, biological or chemical weapons, missiles, or other military use. 8. he products are not designed to be used as part of any device or equipment that may affect the human body, human life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment, aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses. Do not apply the products to the above listed devices and equipments without prior written permission by BLIC Inc. Especially, the products cannot be used for life support devices, devices implanted in the human body and devices that directly affect human life, etc. Prior consultation with our sales office is required when considering the above uses. BLIC Inc. is not responsible for damages caused by unauthorized or unspecified use of our products. 9. emiconductor products may fail or malfunction with some probability. he user of the products should therefore take responsibility to give thorough consideration to safety design including redundancy, fire spread prevention measures, and malfunction prevention to prevent accidents causing injury or death, fires and social damage, etc. that may ensue from the products' failure or malfunction. he entire system must be sufficiently evaluated and applied on customer's own responsibility. 10. he products are not designed to be radiation-proof. he necessary radiation measures should be taken in the product design by the customer depending on the intended use. 11. he products do not affect human health under normal use. However, they contain chemical substances and heavy metals and should therefore not be put in the mouth. he fracture surfaces of wafers and chips may be sharp. Be careful when handling these with the bare hands to prevent injuries, etc. 12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used. 13. he information described herein contains copyright information and know-how of BLIC Inc. he information described herein does not convey any license under any intellectual property rights or any other rights belonging to BLIC Inc. or a third party. eproduction or copying of the information from this document or any part of this document described herein for the purpose of disclosing it to a third-party without the express permission of BLIC Inc. is strictly prohibited. 14. For more details on the information described herein, contact our sales office