SL621 REVISED DECEMBER 2016

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EISED DECEMBE 2016 High Precision, Programmable Linear Hall Effect Sensor With Advanced Temperature Compensation FEATUES AND BENEFITS Proprietary segmented linear interpolated temperature

1 EISED DECEMBE 2016 High Precision, Programmable Linear Hall Effect Sensor With Advanced Temperature Compensation FEATUES AND BENEFITS Proprietary segmented linear interpolated temperature compensation (TC) technology provides a typical accuracy of< 2% across the full operating temperature range Customer programmable, high resolution offset and sensitivity trim. MTP(support double bit trimming) Customer programmed sensitivity TC with extremely stable temperature performance High sensitivity Hall element for maximum accuracy Extremely low noise and high resolution achieved via proprietary Hall element and low noise amplifier circuits fixed 2.5v reference voltage Low cost Package: 3-pin TO92S (A) DESCIPTION The SenkoMicro SL621 programmable linear Hall-effect current sensor IC has been designed to achieve high accuracy. The goal is achieved through new proprietary linearly interpolated temperature compensation technology that is programmed at the Senko factory and provides sensitivity and offset that are virtually flat across the full operating temperature range. Temperature compensation is done in the digital domain with integrated MTPOM technology. This ratio-metric Hall-effect sensor IC provides a voltage output that is proportional to the applied magnetic field. The customer can configure the sensitivity and quiescent (zero field) output voltage through programming on the CC and output pins, to optimize performance in the end application. The quiescent output voltage is user-adjustable around 2.5v voltage, and the output sensitivity is adjustable within the range of 8 to 14 m/g. The sensor IC incorporates a high sensitive Hall element with a BiCMOS interface integrated circuit that employs a low noise small-signal high-gain amplifier, a clamped low-impedance Typical Application 1

2 EISED DECEMBE 2016 Functional Block Diagram Features and Benefits (continued) Selectable sensitivity range between 8 and 14 m/g through use of coarse sensitivity programming bits Fixed sensitivity, quiescent voltage output, and clamps for interfacing with application SP102* Precise recoverability after temperature cycling Output voltage clamps provide short circuit diagnostic capabilities Wide ambient temperature range: 40 C to 125 C Immune to mechanical stress Extremely thin package: 1.5 mm case thickness Description (continued) output stage, and a proprietary, high bandwidth dynamic offset cancellation technique. These advances in Hall-effect technology work together to provide an industry leading sensing resolution. Device parameters are specified across an extended ambient temperature range: 40 C to 125 C. The SL621 sensor IC is provided in an extremely thin case (1.5 mm thick), 3-pin SIP (single in-line package, suffix B) that is lead (Pb) free, with 100% matte tin lead frame plating. Selection Guide Part Number Packing 1 Package type SL621K-A-T 1000 pieces per bag TO92S 1 Contact Senko for additional packing options 2 Senko recommends against changing Coarse Sensitivity settings when programming devices that will be used in production. Each SL621 has been Factory Temperature Compensated at a specific Sensitivity ange and changing coarse bits setting could cause sensitivity drift through temperature range,δsenstc, to exceed specified limits.. 2 Copyright 2017, Senko Micro Electronics co., Ltd.

3 EISED DECEMBE 2016 SPECIFICATIONS Absolute Maximum atings Characteristic Symbol Notes ating Unit Forward Supply oltage CC 6 everse Supply oltage CC 0.1 Forward Output oltage OUT 6 everse Output oltage OUT 0.1 I Output Source Current OUT(source) OUT to GND 10 ma I Output Sink Current OUT(sink) CC to OUT 10 ma Maximum Number of MTPOM Write Cycles MTPOMW(max) 2 cycle T Operating Ambient Temperature A K temperature range 40 to 125 ºC T Storage Temperature stg 65 to 165 ºC Maximum Junction Temperature TJ(max) 165 ºC Terminal List Table Pin-out Diagram (Ejector pin mark on opposite side) Number Name Function O n l y 1 CC 2 GND Ground p Input power supply, use bypass capacitor to connect to ground; also used for programming 3 OUT Output signal, also used for programming Thermal Characteristics may require derating at maximum conditions, see application information Characteristic Symbol Test Conditions* alue Unit Package Thermal esistance θja On 1-layer PCB with exposed copper limited to solder pads 174 ºC/W *Additional thermal information available on the Senko website Power Dissipation versus Ambient Temperature 3

4 EISED DECEMBE 2016 OPEATING CHAACTEISTICS: valid through the full operating temperature range, TA, CBYPASS =4.7 µf, CC = 5 ; Cload=1.5nf,un-less otherwise specified Characteristics Symbol Test Conditions Min. Typ. Max. Unit 1 Electrical Characteristics Supply oltage Supply Current Power-On Time 2 Temperature Compensation Power-On Time 2 CC I CC No load on OUT ma t PO t TC TA = 25 C, CBYPASS = Open, CL = 1 nf, Sens = 2 m/g, constant magnetic field of 400 G TA = 150 C, CBYPASS = Open, CL= 1 nf, Sens = 2 m/g, constant magnetic field of 400 G 78 µs 30 µs Internal Bandwidth BWi Small signal 3 db, CL = 1 nf, TA = 25 C 20 khz Chopping Frequency 3 f T = 25 C 500 khz Output Characteristics C A Propagation Delay Time 2 tpd TA = 25 C, magnetic field step of 400 G, 4.2 µs C L = 1 nf, Sens = 2 m/g ise Time 2 t TA = 25 C, magnetic field step of 400 G, 10 µs C L = 1 nf, Sens = 2 m/g esponse Time 2 tesponse TA = 25 C, magnetic field step of 400 G, 15 µs C L = 1 nf, Sens = 2 m/g Delay to Clamp 2 tclp TA = 25 C, Step magnetic field from 800 to 10 µs Output oltage Clamp 4 Output Saturation oltage G, C L = 1 nf, Sens = 2 m/g CLP(HIGH) TA = 25 C, L(PULLDWN) = 10 kω to GND CLP(LOW) TA = 25 C, L(PULLUP) = 10 kω to CC SAT(HIGH) TA = 25 C, L(PULLDWN) = 10 kω to GND 4.7 SAT(LOW) TA = 25 C, L(PULLUP) = 10 kω to CC 400 m Power supply bypass capacitor C bypass Normal operating 4.7 uf 4 Copyright 2017, Senko Micro Electronics co., Ltd.

5 EISED DECEMBE 2016 OPEATING CHAACTEISTICS (continued): valid through the full operating temperature range, TA, CBYPASS = 4.7 µf, CC = 5 ; Cload=1.5nf, unless otherwise specified Characteristics Symbol Test Conditions Min. Typ. Max. Unit 1 Output Characteristics (continued) Noise 5 DC Output esistance Output Load esistance N TA = 25 C, CL = 1 nf, Sens = 10 m/g, BWf = BWi TA = 25 C, CL = 1 nf, Sens = 10 m/g, 20 m p-p m MS 10 BWf = BWi OUT 9 Ω L(PULLUP) OUT to CC 4.7 kω L(PULLDWN) OUT to GND 4.7 kω Output Load Capacitance 6 CL OUT to GND nf Output Slew ate 7 S Sens = 2 m/g, C = 1 nf 230 /ms Quiescent oltage Output ( ) 2 Quiescent oltage Output Programming ange Quiescent oltage Output Programming Bits OUT(Q) Average Quiescent oltage Output Programming Step Size Quiescent oltage Output Programming esolution 2,13 L OUT(Q)P TA = 25 C QO 9 bit Step OUT(Q) TA = 25 C m Err PGOUT(Q) TA = 25 C ±0.5 Step OUT(Q) m 5

6 EISED DECEMBE 2016 OPEATING CHAACTEISTICS (continued): valid through the full operating temperature range, TA, CBYPASS = 4.7 µf, CC = 5 ; Cload=1.5nf,unless otherwise specified Characteristics Symbol Test Conditions Min. Typ. Max. Unit 1 Sensitivity Programming (continued) Coarse Sensitivity Programming Bits 14 SENS_ COASE 2 bit Fine Sensitivity Programming Bits 10 SENS_FINE 9 bit Average Fine Sensitivity Programming SENS_COASE = 00, TA = 25 C µ/g SENS_COASE = 01, TA = 25 C µ/g Step Size 2,11,12 StepSENS SENS_COASE = 10, TA = 25 C µ/g Sensitivity Programming esolution 2,13 Factory Programmed Sensitivity Temperature Coefficient SENS_COASE = 11, TA = 25 C µ/g Err PGSENS TA = 25 C ±0.5 StepSENS µ/g Sensitivity Temperature Coefficient 2 TC SENS T =150 C, T = 40 C, calculated relative to 25 C 0 %/ C Sensitivity Drift Through Temperature A A TA = 25 C to 150 C % ange 2,9,15,20 ΔSensTC T A = 40 C to 25 C % Average Sensitivity Temperature Compensation Step Size Factory Programmed Quiescent oltage Output Temperature Coefficient Step SENSTC < 0.3 % TC Quiescent oltage Output TA = 150 C, TA = 40 C, calculated relative to Temperature Coefficient 2 QO 25 C Quiescent oltage Output Drift Δ 0 m/ C TA = 25 C to 150 C m Through Temperature ange 2,9,15 OUT(Q)TC TA = 40 C to 25 C m Average Quiescent oltage Output Temperature Compensation Step Size Step QOTC 2.3 m Programming Software The SL621 incorporates a serial interface that allows an external controller(sp102) to automatic calibration in the MTPOM. Please contact with FAE of SenkoMicro. fae@senkomicro.com 6 Copyright 2017, Senko Micro Electronics co., Ltd.

7 EISED DECEMBE 2016 PACKAGE OUTLINE DAWING Figure 28: Package A TO92S, 3-Pin SIP Copyright 2016, Senko Micro-eclectonics Co.,Ltd. Senko Micro-eclectonics Co.,Ltd. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current. Senko s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Senko s product can reasonably be expected to cause bodily harm. The information included herein is believed to be accurate and reliable. However, Senko Micro-eclectonics Co.,Ltd. assumes no responsibility for its use; nor for any infringement of patents or other rights of third parties which may result from its use. For the latest version of this document, visit our website: 7

SW REVISED DECEMBER 2016

SW REVISED DECEMBER 2016 www.senkomicro.com REVISED DECEMBER 2016 Chopper Stabilized, Precision Hall Effect Latches for Consumer and Industrial Applications FEATURES AND BENEFITS Symmetrical Latch switch points Resistant to physical