TC7734FTG中文資料東芝數(shù)據(jù)手冊PDF規(guī)格書

1. DESCRIPTION

TC7734FTG is a complete power supply solution for portable

devices that include 4 DCDC Buck Converters, 3 LDOs, 2-ch LED

Driver and built-in Switching Charger function. Most of the outputs

can be controlled by I2C bus for various programmable settings.

2. FEATURES

? Operating voltage: 3.4 V to 5.5 V ? 4 ch DCDC converter (DCDC1 to DCDC4) ? Synchronous Current Mode Buck Converters ? DCDC1-4 Optional 2-Phase Switching Reduces Input Peak

Current

? Built-in compensation circuit: DCDC1 to DCDC4

? 3 ch LDO(LDO1 to LDO3)

? LED Driver

? Built-in Current Mode DCDC Boost Converter

? 2-Ch Constant Current LED Driver

? Sink Current: up to 80 mA/ch with LED voltage up to 20 V

? Output Current Accuracy: +/- 5 (ILED = 20 mA)

? LED1 and LED2 Regulation Voltage: 0.4 V

? PWM dimming, I2C Controlled 32 steps with 195Hz fixed dimming frequency

? LED Driver Protection Circuit

? Over Voltage Detection (OVD)

? Output Open Detection (OOD)

? Output Short Detection (OSD)

? Battery Charger Function

? USB Host and USB Charger Adaptor Detections for Optimum Charge Current for SDP, CDP, DCP and Other)

? DCIN Input Over Voltage Protection (OVP): 5.8 V (typ.) * Maximum voltage of DCIN terminal is defined by 6 V.

? Power Path Function

? 1.5 A Switching Charger with Built-in Power MOSFETs