TPS65145-Q1中文资料具有故障检测功能的汽车类 2.7V 至 5.8V、4 通道 LCD 电源数据手册TI规格书

描述 Description

The TPS65140-Q1 and TPS65145-Q1 devices offer a compact and small power supply solution that provides all three voltages required by thin-film transistor (TFT) LCD displays. The auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only.

The main output, VO1 is a 1.6-MHz fixed-frequency PWM boost converter providing the source-drive voltage for the LCD display. The TPS65140-Q1 device has a typical switch current limit of 2.3 A and the TPS65145-Q1 has a typical switch current limit of 1.37 A.

A fully integrated adjustable charge pump doubler and provides the positive LCD gate-drive voltage. An externally adjustable negative charge pump provides the negative LCD gate-drive voltage.

For compensation of the devices please refer to Application Note: How to Compensate with the TPS6510x and TPS6514x SLVA813.

特性 Features

• Qualified for Automotive Applications
• Device Temperature Grade 1
• Device CDM ESD Classification Level C5
• Input Voltage Range: 2.7 V to 5.8 V
• Up to 15 V Output Voltage
•
• Down to -12 V / 20 mA
• VO3 Positive Regulated Charge Pump
• Three Independently Adjustable Outputs
• Internal Soft Start
• Protection Features
• Overvoltage Protection of all Outputs
• Available in TSSOP-24 PowerPAD™Package