NJW4185. High Voltage Io=500mA Low Dropout Regulator. FEATURES Wide Operating Voltage Range PRODUCT CLASSIFICATION
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1 High Voltage Io=mA Low Dropout Regulator GENERAL DESCRIPTION The NJW8 is a high voltage and low current consumption low dropout regulator. It has two product type: A version (built-in ON/OFF function type) and B version (3-terminal / compatible with 78M series) NJW8 is mounted to TO--3/- packages and corresponded to Low ESR capacitor (MLCC). The wide input range makes NJW8 suitable for Automotive applications, Industrial supplies, Multiple cell battery equipment and various applications. PACKAGE OUTLINE NJW8DL3 NJW8DL FEATURES Wide Operating Voltage Range.V to V Low Current Consumption μa typ. (A version) 8μA typ. (B version) High Precision Output V O.% Output Current I O (min.)=ma Output Voltage Range.V to.v Correspond to Low ESR capacitor (MLCC) ON/OFF Function (apply only the A ver.) Internal Thermal Overload Protection Internal Over Current Protection Package Outline A version: TO-- B version: TO--3 PRODUCT CLASSIFICATION Device Name Version ON/OFF Function Package NJW8DL3-xxA A Yes TO-- NJW8DL-xxB B - TO--3 xx=output Voltage ex) 33=3.3V =.V PIN CONFIGURATION 3 NC 3 3 CONTROL NJW8DL3-A NJW8DL-B Ver
2 BLOCK DIAGRAM A version CONTROL Current Limit Bandgap Reference Thermal Protection B version Current Limit Bandgap Reference Thermal Protection OUTPUT VOLTAGE RANK LIST A version Device Name Output Voltage NJW8DL3-33A 3.3V NJW8DL3-A.V NJW8DL3-8A 8.V NJW8DL3-A.V B version Device Name Output Voltage NJW8DL-33B 3.3V NJW8DL-B.V NJW8DL-8B 8.V NJW8DL-B.V - - Ver.--
3 ABSOLUTE MAXIMUM RATINGS (Ta= C) PARAMETER SYNBOL RATINGS UNIT Input Voltage -.3 to + V Control Voltage(*) V CONT -.3 to + V Output Voltage -.3 to +7 V Power Dissipation P D 9 (*) 3 (*3) mw Junction Temperature Tj - to + C Operating Temperature Topr - to + C Storage Temperature Tstg - to + C (*): Apply only the A version. (*): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard size, Layers, Cu area mm ) (*3): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard, Layers) (For Layers: Applying 7. x 7.mm inner Cu area and thermal via hole to a board based on JEDEC standard JESD-) INPUT VOLTAGE RANGE =.V to V ELECTRICAL CHARACTERISTICS Unless otherwise noted, =V O +V, C IN =.μf, C O =.μf, Ta= C PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Output Voltage V O I O =3mA -.% - +.% V Quiescent Current Quiescent Current at Control OFF (*) I Q A version, I O =ma, except I CONT - 9 B version, I O =ma I Q (OFF) V CONT =V - - μa Output Current I O V O ma Line Regulation V O / = V O +V to V, I O =3mA %/V Load Regulation V O / I O I O =ma to ma %/ma Ripple Rejection RR = V O +V,ein=mVrms, f=khz, I O =ma V O =3.3V V O =.V V O =8.V - - V O =V - - Dropout Voltage (*) V I O I O =3mA -.7. V Average Temperature Coefficient of Output Voltage V O / Ta Ta = to 8 C, I O =3mA - - ppm/ C Control Current (*) I CONT V CONT =.6V - 3 μa Control Voltage for ON-state (*) Control Voltage for OFF-state (*) V CONT(ON) V V CONT(OFF) V (*): Apply only the A version. (*): Except Output Voltage Rank less than 3.8V The above specification is a common specification for all output voltages. Therefore, it may be different from the individual specification for a specific output voltage. μa db Ver
4 THERMAL CHARACTERISTICS PARAMETER SYMBOL VALUE UNIT Junction-to-Ambient (*6) ja thermal resistance (*7) C/W Junction-to-Top of package 7 (*6) jt characterization parameter (*7) C/W (*6): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard size, Layers, Cu area mm ) (*7): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard, Layers) (For Layers: Applying 7. 7.mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD-) POWER DISSIPATION vs. AMBIENT TEMPERATURE 3 NJW8DL/DL3 PowerDissipation (Topr=-~+ C,Tj= C) Power Dissipation P D (mw) 3 on layers board on layers board Temperature : Ta( C) - - Ver.--
5 TEST CIRCUIT A version A I IN.μF NJW8-A.μF (Ceramic) I OUT V A I CONT CONTROL V V CONT B version A I IN. F NJW8-B. F I OUT V (ceramic) Ver
6 TYPICAL APPLICATION A version. In the case where ON/OFF Control is not required.μf NJW8-A.μF R CONTROL Connect control pin to pin. In use of ON/OFF CONTROL.μF NJW8-A.μF R CONTROL State of control pin: H output is enabled. L or open output is disabled. B version. F NJW8-B. F Ver.--
7 *In the case of using a resistance "R" between and control. If this resistor is inserted, it can reduce the control current when the control voltage is high. The applied voltage to control pin should set to consider voltage drop through the resistor R and the minimum control voltage for ON-state. The V CONT (ON) and I CONT have temperature dependence as shown in the "Control Current vs. Temperature" and "Control Voltage vs. Temperature" characteristics. Therefore, the resistance "R" should be selected to consider the temperature characteristics. *Input Capacitor C IN Input Capacitor C IN is required to prevent oscillation and reduce power supply ripple for applications when high power supply impedance or a long power supply line. Therefore, use the recommended C IN value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and should connect between and as shortest path as possible to avoid the problem. *Output Capacitor C O The output capacitor C O will be required for a phase compensation of the internal error amplifier. The capacitance and the equivalent series resistance (ESR) influence to stable operation of the regulator. Use of a smaller C O may cause excess an output noise or an oscillation of the regulator due to lack of the phase compensation. On the other hand, use of a larger C O reduces an output noise and a ripple output, and also improves an output transient response when load rapidly changes. Therefore, use the recommended C O value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and should connect between and as shortest path as possible for stable operation. The recommended capacitance depends on the output voltage rank. Especially, a low voltage regulator requires larger C O value. In addition, you should consider varied characteristics of capacitor (a frequency characteristic, a temperature characteristic, a DC bias characteristic and so on) and unevenness peculiar to a capacitor supplier enough. When selecting C O, recommend that have withstand voltage margin against an output voltage and superior temperature characteristic. *Transient response characteristic of Output Voltage In general, overshoot or undershoot of output voltage may occur due to the transient response characteristic of an internal error amplifier. Especially, low current consumption regulator may have overshoot or undershoot due to slow feedback caused by current saving design. Therefore, design validation is important in the following cases:. Input voltage or output current change sharply. Output capacitors is small 3. Output load is light. A regulator starts up with very low dropout voltage operation. Increasing the value of input and/or output capacitor is a common countermeasure for improving a transient response characteristic. A transient response characteristic may vary with operating conditions and external components value. Please check it with the actual environment. Ver
8 *The notes of the evaluation when output pin is shorted to When evaluate short circuit test, the IC may break down because of regenerated energy by the parasitic inductance included in wiring pattern. It phenomenon appears conspicuously when an output voltage is higher(vo=8.v or more) or connected to inductive load. In case of short circuit in actual application, not likely to destruction of the IC because of some of Resistance exist between load. If happened above phenomenon by the short circuit test with the actual application, recommend connecting schottky barrier diode(sbd) between Vo pin and or using output capacitors that have ESR more than Ω like a tantalum or aluminum electrolytic capacitor.(see below figure) (a)in case of insert Schottky barrier diode between output pin - NJW8 SBD (b) In case of using the electrolytic capacitor or insert series resistor NJW8 Connecting resistor( or more)in series. (in case of ESR of C OUT is low) Ver.--
9 TYPICAL CHARACTERISTICS.3. NJW8_.V Output Voltage vs Input C IN =.μf(ceramic) 7 6 NJW8_.V Output Voltage vs Output =.3V C IN =.μf(ceramic)..9.8 Io=mA Io=3mA Io=mA 3 ºC ºC -ºC Input Voltage: (V) 7 Output Current:Io (ma) Quiescent Current:I Q (μa) NJW8(A ver.)_.v Quiescent Current vs Input Output is Open except I CONT C IN =.μf(ceramic) 3 Quiescent Current:I Q (μa) NJW87(B ver.)_.v Quiescent Current vs Input Output is Open C IN =.μf(ceramic) 3 Input Voltage: (V) Input Voltage : (V) Ground Pin Current:I (μa) 6 3 NJW8_.V Ground Pin Current vs Output =6.V C IN =.μf(ceramic) 6 3 NJW8_.V Output Voltage vs Control =6.V C IN =.μf(ceramic) Rc=kΩ Rc=Ω 3.. Output Current:Io (ma) Control Voltage:V CONT (V) Ver
10 Control Current:I CONT (μa) NJW8_.V Control Current vs Control =6.V C IN =.μf(ceramic) Rc=Ω Rc=kΩ 3 Load Regulation :ΔVo/ΔIo (mv) NJW8_.V Load Regulation vs Output =6.V C IN =.μf(ceramic) 3 Control Voltage:V CONT (V) Output Current:Io (ma) Peak Output Current:I OPEAK (ma) 8 6 NJW8_.V Peak Output Current vs Input V O =.V C IN =.μf(ceramic) Dropout Voltage:ΔV I-O (V) NJW8_.V Dropout Voltage vs Output C IN =.μf(ceramic) 3 Input Voltage: (V) Output Current:Io (ma) Ripple Rejection Ratio:RR (db) NJW8_.V Ripple Rejection Ratio vs Frequency Io=3mA Io=mA Io=mA =6.V Io=mA Cin=.μF(Ceramic) ein=mvrms k k k Frequency:f (Hz) Ripple Rejection Ratio:RR (db) NJW8_.V Ripple Rejection Ratio vs Output Current f=khz =6.V Cin=.μF(Ceramic) ein=mvrms... Output Current:Io (ma) - - Ver.--
11 Equivalent Series Resistance:ESR (Ω).. NJW8_.V Equivalent Series Resistance vs Output =6.V Cin=.μF(Ceramic) Stable Region.... Output Current:Io =6.V C IN =.μf(ceramic) NJW8_.V Output Voltage vs Temperature. - Temperature: (ºC) Io= Io=3mA Io=mA Control Voltage:V CONT =6.V C IN =.μf(ceramic) NJW8_.V Control Voltage vs Temperature Control Current:I CONT (μa) NJW8_.V Control Current vs CONT =.6V C IN =.μf(ceramic).. - Temperature: (ºC) - Temperature:(ºC) Peak Output Current:I OPEAK (ma) NJW8_.V Peak Output Current vs O =.V C IN =.μf(ceramic) - Temperature:(ºC) VIN=6V VIN=V Short Circuit Current:I SC (ma) NJW8_.V Short Cuircuit Current vs O =V C IN =.μf(ceramic) VIN=6V VIN=V - Temperature : (ºC) Ver
12 Line Regulation: ΔVo/Δ (%/V).. -. NJW8_.V Line Regulation vs =6.-V Io=3mA C IN =.μf(ceramic) Load Regulation:ΔVo/ΔIo (%/ma).. -. NJW8_.V Load Regulation vs =6.V Io=-mA C IN =.μf(ceramic) -. - Temperature: (ºC) -. - Temperature: (ºC) 6 3 Io=mA Io=3mA NJW8_.V Output Voltage vs Temperature =6.V C IN =.μf(ceramic) - Temperature: (ºC) Dropout Voltage :V IO (V) NJW8_.V Dropout Voltage vs IN =.μf(ceramic) - Temperature : (ºC) Io=mA Io=3mA Io=mA Quiescent Current:I Q (μa) NJW8(A ver.)_.v Quiescent Current vs =6.V Output is Open except I CONT C IN =.μf(ceramic) - Temperature: (ºC) - - Ver.--
13 Input Voltage: (V) NJW8_.V Input Transient Response Input Voltage Output C =6.-7.V Io=3mA C IN =.μf(ceramic)...9 Output Voltage:Vo (V) 3 NJW8_.V Load Transient Response Output Current Output C =6.V Io=-mA C IN =.μf(ceramic)...9 Output Current :Io (ma) 8 6 Time:t (μs) 6 8 Time:t (ms) Control Voltage:V CONT (V) NJW8(A ver.)_.v ON/OFF Transient Response without Load Output C =6.V Io=mA C IN =.μf(ceramic) 8 6 Control Voltage:V CONT (V) Output Voltage NJW8(A ver.)_.v ON/OFF Transient C =6.V Io=3mA C IN =.μf(ceramic) 8 6 Control Voltage Control Voltage 6 8 Time:t (s) 8 6 Time:t (ms) [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Ver
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