NJW4840 High Speed Switching Gate Driver GENERAL DESCRIPTION PACKAGE OUTLINE The NJW4840 is a High Speed Switching Gate Driver that is applicable 4A peak current. The NJW4840 features are Withstand voltage of 24V, Operating voltage range: 8V to 20V and Fast switching time (27.5ns typical at 4700pF load). The NJW4840 is suitable for PDP Sustain Pulse Drive, DC / AC Motor Drive, Switching Power Supply, and DC / DC Converter Applications. NJW4840R (MSOP8 (VSP8)) FEATURES Output Peak Current: ±4A (peak) Operating Voltage Range: 8V to 20V High Speed Switching: 27.5nsec(typ.)@CL=4,700pF Built-in Thermal Shut Down Under Voltage Lockout Short Circuit Protection (power / ground fault) Package: MSOP8 (VSP8) * MEET JEDEC MO-187-DA PIN CONNECTION 1 8 2 7 3 6 4 5 1. GND 2. GND 3. GND 4. IN 5. GND 6. GND 7. OUT 8. VDD BLOCK DIAGRAM VDD Control Logic IN OUT UVLO TSD GND Ver.2012-08-22 -1- NJW4840 ABSOLUTE MAXIMUM RATINGS PARAMETER SYNBOL Supply Voltage VDD Input Voltage VIN Input Voltage (Pulse) VIN-pulse (Ta=25°C) REMARK VDD-GND Pin RATINGS UNIT V +24 −0.3 to +6 V VIN-GND Pin −0.3 to +7 720 (*1) Power Dissipation PD mW – 1,100 (*2) Junction Temperature Tj – −40 to +150 °C Operating Temperature Topr – −40 to +105 °C Storage Temperature Tstg – −50 to +150 °C (*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers) (*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers), internal Cu area: 74.2×74.2mm RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN. Operating Voltage Vopr 8.0 Input Voltage VIN 0 -2- TYP. – – MAX. 20 5.5 UNIT V V (Ta=25°C) REMARK VDD-GND Pin VIN-GND Pin Ver.2012-08-22 NJW4840 ELECTRICAL CHARACTERISTICS PARAMETER (Unless otherwise noted, VDS=16V, Ta=25°C) SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT VIN=5V VIN=0V – – 0.93 0.7 1.6 1.4 mA mA PW≤400us, VOUT=0V PW≤400us, VOUT=16V IO-SOURCE=100mA IO-SINK=100mA – – – – 60 4 4 0.8 0.8 100 – – 1.5 1.5 140 A A Ω Ω kΩ VIN=5.5V VIHIN − VILIN 3.0 0 – – – – – 0.3 5.5 1.5 1 – V V µA V VUVLO2 − VUVLO1 6.3 6 – 7 6.7 0.3 7.7 7.4 – V V V General Quiescent Current IQ1 IQ2 Output Block Pull Down Resistance IPK1 IPK2 RDSH RDSL RPD Input Circuit Block IN Pin High Resistance IN Pin Low Resistance IN Pin Sink Current IN Pin Hysteresis Voltage VIHIN VILIN IIIN ΔVin UVLO Block UVLO Release Voltage UVLO Operating Voltage UVLO Hysteresis Voltage VUVLO2 VUVLO1 ΔVUVLO Output Peak Current Output ON Resistance (High-Side / Low-Side) Output Rise / Fall Characteristics PARAMETER SYMBOL Output Rise Time Tr Output Fall Time Tf Rise Delay Time td_ON Fall Delay Time td_OFF * It is design guaranteed, not tested. Ver.2012-08-22 TEST CONDITION CL=4700pF, VIN=0 to 5V CL=4700pF, VIN=5 to 0V CL=4700pF, VIN=0 to 5V CL=4700pF, VIN=5 to 0V (V+=16V, Ta=25°C, Design Value*) MIN. TYP. MAX. UNIT 15.0 27.5 40.0 ns 15.0 27.5 40.0 ns 17.5 30.0 42.5 ns 25.0 37.5 50.0 ns -3- NJW4840 Timing Chart 90% IN 10% tr OUT tf 90% 90% 10% 10% td_ON td_OFF TYPICAL APPLICATION Power Supply V+ VDD IGBT INPUT VIN + 10µF NJW4840 OUT 0.1µF GND -4- Ver.2012-08-22 NJW4840 APPLICATION TIPS In the application that does a high-speed switching of NJW4840, because the current flow corresponds to the input frequency, the substrate (PCB) layout becomes an important. NJW4840 is driving the High-side/Low-side SW gate with high speed to reduce switching losses. The transient voltage is generated by parasitic inductance and a high-speed current change of high side and low side SW. You should attempt the transition voltage decrease by making a current loop area minimize as much as possible. Therefore, you should make a current flowing line thick and short as much as possible. You should insert a bypass capacitor between the VDD pin and the GND pin to prevent malfunction by generating over voltage and/or exceed maximum input voltage rating. The recommended bypass capacitor is low ESR and high frequency characteristic (NJRC recommends 0.1µF or more). An aluminum electrolysis capacitor is recommended for smoothing condenser. (NJRC recommends 10µF or more). However, you should use large capacitor by sufficient evaluation (assessment) due to load condition and/or application use environment. (There is a possibility that the supply voltage rises by inductive kickback when the supply current of the inductive load is large.) The bypass capacitors should be connected as much as possible near the VDD pin. Ver.2012-08-22 -5- NJW4840 CHARACTERISTICS 2 NJW4840 NJW4840 Supply Current1-Supply Voltage Supply Current2-Supply Voltage 1.8 2 VDD=20V→0V VIN=5V Ta=25℃ 1.4 1.2 1 0.8 0.6 1.2 1 0.8 0.6 0.4 0.2 0.2 0 0 5 10 15 Supply Voltage[V] 0 20 NJW4840 Input Threshold Voltage-Supply Voltage 5 4.5 Ta=25℃ 5 10 15 Supply Voltage[V] 20 NJW4840 2.0 Input Terminal LOW Voltage Input Terminal High Voltage 1.8 4 Output ON Resistance[Ω] Input Threshold Voltage[V] VDD=0V→20V 1.4 0.4 0 3.5 3 2.5 2 1.5 1 0.5 Output ON Resistance：PMOS-Output Current PMOS NMOS VDD=16V Ta=25℃ 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 10 15 Supply Voltage[V] 2 0.0 0.01 20 0.1 1 Output Current[A] NJW4840 NJW4840 Supply Current-Temperature UVLO Operation/Release Voltage-Temperature 1.8 IQ1(VDD=16V VIN=5V) 1.6 IQ2（VDD=16V VIN=0V） 1.4 1.2 1 0.8 0.6 0.4 0.2 0 8 UVLO Operation/Release Voltage[V] 5 Supply Current[mA] VDD=20V→0V 1.6 Supply Current2[mA] Supply Current1[mA] 1.6 10 UVLO Operating Voltage UVLO Release Voltage 7.8 7.6 7.4 7.2 7 6.8 6.6 6.4 6.2 6 -50 -6- VIN=0V Ta=25℃ 1.8 VDD=0V→20V -25 0 25 50 75 100 125 150 Ambient Temperature[ºC] -50 -25 0 25 50 75 100 125 150 Ambient Temperature[ºC] Ver.2012-08-22 NJW4840 CHARACTERISTICS 2 NJW4840 Input Threshold Voltage-Temperature VDD=16V Io=100mA 5 PMOS NMOS 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 4 3.5 3 2.5 2 1.5 1 0.5 0 0 -25 80 0 25 50 75 100 125 150 Ambient Temperature[ºC] -25 0 25 50 75 100 125 150 Ambient Temperature[ºC] NJW4840 NJW4840 Output Rise/Fall Time-Temperature Output Propagation Delay Time-Temperature Output Rise Time：ｔｒ 70 -50 Output Fall Time：ｔf 60 50 40 30 20 10 0 80 Output Propagation Delay Time[ns] -50 Output Rise/Fall Time[ns] Input Terminal Low Voltage Input Terminal High Voltage 4.5 Input Threshold Voltage[V] 1.8 Output ON Resistance[Ω] NJW4840 Output ON Resistance-Temperature Output Rise Delay Time：td_on 70 Output Fall Delay Time：td_off 60 50 40 30 20 10 0 -50 -25 0 25 50 75 100 125 150 Ambient Temperature[ºC] -50 -25 0 25 50 75 100 125 150 Ambient Temperature[ºC] [CAUTION] The specifications on this datasheets are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this datasheets 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.2012-08-22 -7-