TDA21472集成電路（IC）的柵極驅(qū)動器規(guī)格書PDF中文資料

TDA21472屬于集成電路（IC）的柵極驅(qū)動器。由英飛凌科技股份公司制造生產(chǎn)的TDA21472柵極驅(qū)動器柵極驅(qū)動器電源管理集成電路 (PMIC) 可用于提供隔離、放大、參考位移、自舉或其他必要功能，這些功能可將來自電源轉(zhuǎn)換應(yīng)用中控制設(shè)備的信號連接到電源被控制通過的半導(dǎo)體設(shè)備（通常為 FET 或 IGBT）。任何特定設(shè)備提供的確切功能各不相同，但與它適合驅(qū)動的半導(dǎo)體配置相關(guān)。

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

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.