NJW4841-T1. 1-channel Switching Gate Driver

Transcription

1 NJW8-T -channel Switching Gate Driver GENERAL DESCRIPTION The NJW8 is a High Speed Switching Gate Driver that is applicable A peak current. The NJW8 features are Withstand voltage of, recommended operating voltage range: to and Fast switching time The NJW8 is suitable for DC / AC Motor Drive, Switching Power Supply and DC / DC Converter Applications. PACKAGE LE NJW8R (MSOP8 (SP8))* FEATURES Output Peak Current: A (peak) Operating oltage Range: to High Speed Switching: tr/tf=5ns/ns(typ.) at C L =pf Corresponding with Logic oltage Operation: /5 Built-in Thermal Shut Down Under oltage Lockout Package: MSOP8 (SP8)* * MEET JEDEC MO-87-DA P CONFIGURATION BLOCK DIAGRAM Control Logic ULO TSD er

2 NJW8-T ABSOLUTE MAXIMUM RATGS (Ta=5 C) PARAMETER SYMBOL RATGS UNIT REMARK Supply oltage DD - Pin Input oltage. to 6 - Pin Power Dissipation P D 7 (*) (*) mw Junction Temperature T j to 5 C Operating Temperature T opr to 5 C Storage Temperature T stg 5 to 5 C (*): Mounted on glass epoxy board. (76...6mm: based on EIA/JDEC standard, Layers) (*): Mounted on glass epoxy board. (76...6mm: based on EIA/JDEC standard, Layers), internal Cu area: 7. 7.mm RECOMMENDED OPERATG CONDITIONS (Ta=5 C) PARAMETER SYMBOL M. TYP. MAX. UNIT REMARK Operating oltage DD. - Pin Input oltage Pin - - er.5--7

3 NJW8-T ELECTRICAL CHARACTERISTICS (Unless otherwise noted, DD =6, Ta=5 C) PARAMETER SYMBOL TEST CONDITIONS M. TYP. MAX. UNIT General Quiescent Current I Q I Q =5.5.5 =5, Ta= to 5 C.5 =.. =, Ta= to 5 C. ma ma Output Block Output Peak Current Output ON Resistance (High-Side / Low-Side) Output Pull Down Resistance I PK Pulse Width s, = A I PK Pulse Width s, =6 A R DSH I O-SOURCE =ma..9 R DSL I O-SK =ma Ta= to 5 C 6 k R PD Input Circuit Block Pin High oltage Pin Low oltage Input Pull Down Resistance IH IL R PD. 5.5 Ta= to 5 C Ta= to 5 C.8 6 Ta= to 5 C 6 k ULO Block ULO Release oltage ULO.8..8 Ta= to 5 C.8.8 ULO Operating oltage ULO.5..5 Ta= to 5 C.5.5 ULO Hysteresis oltage Δ ULO ULO ULO. Output Rise/Fall characteristics Output Rise Time tr C L =pf, = to 5 5 ns Output Fall Time tf C L =pf, =5 to ns Rise Delay Time t d_on C L =pf, = to 5 ns Fall Delay Time t d_off C L =pf, =5 to 5 ns er

4 NJW8-T TIMG CHART 9% % tr tf 9% 9% % % t d_on t d_off TYPICAL APPLICATION + F. F NJW8 FET + F. F NJW8 IGBT APPLICATION TIPS In the application that does a high-speed switching of NJW8, because the current flow corresponds to the input frequency, the substrate (PCB) layout becomes an important. NJW8 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 transient 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 pin and the pin to prevent malfunction by transient voltage and/or exceed maximum input voltage rating. The recommended bypass capacitor is low ESR and fine high frequency characteristic (NJRC recommends. F or more).an aluminum electrolytic capacitor is recommended for smoothing capacitor (NJRC recommends F 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 near as possible to the pin. - - er.5--7

5 NJW8-T CHARACTERISTICS Quiescent Current:I Q [ma] Quiescent Current vs.operating oltage 5 =5 5 - Quiescent Current:I Q [ma] Quiescent Current =6 =5 = Operating oltage: DD [] Ambient Temperature:Ta [ C] Quiscent Current:I Q [ma] Quiescent Current vs.operating oltage 5 = 5 - Quiescent Current:I Q [ma] Quiescent Current =6 = = Operating oltage: DD [] Output Peak Current:I PK /I PK [A] DD =6 Output Peak Current Output Peak Current: Ipk(High-Side) Output Peak Current: Ipk(Low-Side) er

6 NJW8-T CHARACTERISTICS Output ON Resistance:R DSH [Ω] Output ON Resistance(High-Side) =6 = Iout=mA =5 Output ON Resistance:R DSL [Ω] Output ON Resistance(Low-Side) =6 = Iout=mA = Pin High/Lowoltage: IH / IL [] Pin High/Lowoltage Pin High oltage Pin Low oltage DD =6 ULO Release/Operating oltage : ULO / ULO [] ULO Release/Operating oltage ULO Release oltage ULO Operating oltage =5 Output Rise/Fall Time:tr/ tf [ns] Output Rise/Fall Time Output Rise Time Output Fall Time = to 5 DD =6 C L =pf Rise/Fall Delay Time:t d_on / t d_off [ns] Rise/Fall Delay Time Rise Delay Time Fall Delay Time = to 5 DD =6 C L =pf er.5--7

7 NJW8-T [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. er