TPS40200-Q1中文资料具有 P 沟道 FET 驱动器的汽车类 4.5V 至 52V 非同步电压模式降压控制器数据手册TI规格书

描述 Description

The TPS40200-Q1 is a flexible, nonsynchronous controller with a built-in 200-mA driver for P-channel FETs. The circuit operates with inputs up to 52 V, with a power-saving feature that turns off driver current once the external FET has been turned on fully. This feature extends the flexibility of the device, allowing it to operate with an input voltage up to 52 V without dissipating excessive power. The circuit operates with voltage-mode feedback and has feed-forward input-voltage compensation that responds instantly to input voltage change. The integral 700-mV reference is trimmed to 2%, providing the means to accurately control low voltages. The TPS40200-Q1 is available in an 8-pin SOIC package and supports many of the features of more complex controllers. Clock frequency, soft start, and overcurrent limit are each easily programmed by a single, external component. The device has undervoltage lockout (UVLO) and can be easily synchronized to other controllers or a system clock to satisfy sequencing and/or noise-reduction requirements.

特性 Features

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
• Device Temperature Grade 1: –40°C to 125°C
• Device HBM ESD Classification Level 1B
• Device CDM ESD Classification Level C6

• Input Voltage Range 4.5 V to 52 V
• Output Voltage (700 mV to 90% VIN)
• 200-mA Internal P-channel FET Driver
• Voltage Feed-Forward Compensation
• Undervoltage Lockout (UVLO)
• Programmable Fixed-Frequency (35-kHz to  500-kHz) Operation
• Programmable Short-Circuit Protection
• Hiccup Overcurrent Fault Recovery
• Programmable Closed-Loop Soft Start
• 700-mV 1% Reference Voltage
• External Synchronization
• Small 8-Pin SOIC (D) Package