TDA21462
60 A power stage with integrated current sense
The TDA21462 power stage contains a low quiescent-current synchronous buck gate-driver IC co-packaged with Schottky diode, and high-side and low-side MOSFETs. The TDA21462 power stage forms a complete low voltage, high power DC/DC regulator when used with Infineon multiphase controller ICs.
The TDA21462 internal MOSFET current sense algorithm with temperature compensation achieves superior current sense accuracy versus best-in-class controller-based inductor DCR sense methods. Operation at switching frequency as high as 1.5 MHz enables high performance transient response, allowing reduction of output inductance and output capacitance while maintaining industry leading efficiency.
特征描述
- 5-mV/A on-chip MOSFET current sensing with temperature compensated reporting
- Input voltage (VIN) range of 4.25 V to 16 V
- VCC and VDRV supply of 4.25 V to 5.5 V
- Output voltage range from 0.25 V up to 5.5 V
- 60 A operating current with 70 A Output Over-Current Protection (OCP) capability
- Operation up to 1.5 MHz
- 8-mV/°C temperature analog output
- Thermal shutdown and fault flag
- Cycle-by-cycle over current protection with programmable threshold and fault flag
- MOSFET phase fault detection and flag
- Deep-sleep mode for power saving
- Compatible with 3.3-V tri-state PWM input
- Body-Braking load transient support
- 5 mm x 6 mm x 1 mm PQFN package
优势
- Higher efficiency at the lower output voltages enabled by the Gate Driver and MOSFET combination
- Current and temperature fault monitoring for a more robust system
- Bootstrap capacitor under-voltage monitoring and auto-replenishment for a more robust system
- Optimized PCB layout, heat, transfer, driver/MOSFET control timing, and minimal switch node ringing when layout guidelines are followed
潜在应用
- High frequency, low profile dc-dc converters
- Voltage Regulators for CPUs, GPUs, and DDR memory arrays
- Computing Server
- Telecom
- Datacom
- Graphics
