NJW4800

NJW4800 30V/4A Half Bridge Driver GENERAL DESCRIPTION The NJW4800 is a general purpose, half bridge power driver capable of supplying 4A current. The internal gate driver drives high-side/low-side power MOSFET; therefore, it has fast switching. Additionally, it has protection features such as over current protection and thermal shutdown. And in the case of failure, it can output a fault flag. It is suitable for power switching applications of DSP/micro controller. ■ PACKAGE OUTLINE NJW4800GM1 FEATURES ● Output Switch Current ±4A ● Operating Voltage 7.5V to 30V ● Up to 1.2MHz Switching Frequency ● Thermal Shut Down ● Over Current Protection ● Under Voltage Lockouts ● Fault Indicator Output ● Stand-by Current IQOFF =3µA (typ.) ● High Heat Radiation Package ● Package Outline HSOP8 PIN CONFIGURATION 18 27 36 45 Exposed PAD on backside connect to GND PIN FUNCTION 1. PWM 2. VDD 3. OUT 4. GND 5. BS 6. STBY 7. REG 8. FLT Ver.2013-05-20 -1- NJW4800 BLOCK DIAGRAM RFLT FLT REG CREG VDD PWM STBY Over current Protection Thermal Shut Down Under Voltage Lock Out Input Control 750kΩ Regulator (5V) Level Shift High Side Gate Driver Low Side Gate Driver GND BS CBS 100kΩ OUT -2- Ver.2013-05-20 NJW4800 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage FLT Pin Voltage BS Pin Voltage BS-OUT Pin Voltage SYMBOL V+ VSTBY VPWM VFLT VBS VBS–OUT Power Dissipation PD Operating Junction Temperature Operating Temperature Range Storage Temperature R...