TDA21472集成电路（IC）的栅极驱动器规格书PDF中文资料

TDA21472属于集成电路（IC）的栅极驱动器。由英飞凌科技股份公司制造生产的TDA21472栅极驱动器栅极驱动器电源管理集成电路 (PMIC) 可用于提供隔离、放大、参考位移、自举或其他必要功能，这些功能可将来自电源转换应用中控制设备的信号连接到电源被控制通过的半导体设备（通常为 FET 或 IGBT）。任何特定设备提供的确切功能各不相同，但与它适合驱动的半导体配置相关。

特性 Features

 Co-packaged driver, Schottky diode, and high-side and low-side MOSFETs

 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

 Output current capability of 70 A

 Operation up to 1.5 MHz

 VCC/VDRV under voltage lockout (UVLO)

 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

 Auto-replenishment of bootstrap capacitor

 Deep-sleep mode for power saving

 Compatible with 3.3-V tri-state PWM input

 Body-Braking load transient support

 Small 5 mm x 6 mm x 1 mm PQFN package

 Lead free RoHS compliant package

描述 Description

The TDA21472 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 package is optimized for PCB layout, heat

transfer, driver/MOSFET control timing, and minimal switch node ringing when layout guidelines are followed.

The gate driver and MOSFET combination enables higher efficiency at the lower output voltages required by

cutting edge CPU, GPU and DDR memory designs.

The TDA21472 internal MOSFET current sense algorithm with temperature compensation achieves superior

current sense accuracy versus best-in-class controller-based inductor DCR sense methods. Protection includes

cycle-by-cycle over current protection with programmable threshold, VCC/VDRV UVLO protection, phase fault

detection, IC temperature reporting and thermal shutdown. The TDA21472 also features auto-replenishment of

the bootstrap capacitor to prevent over-discharging. The TDA21472 features a deep-sleep power saving mode,

which greatly reduces the power consumption when the multiphase system enters PS3/PS4 mode.

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.

The TDA21472 is optimized for CPU core power delivery in server applications. The ability to meet the stringent

requirements of the server market also makes it ideally suited for powering GPU and DDR memory designs.