TPS65181 Overview
The TPS6518x and TPS65181xB family of devices are single-chip power supplies designed to for E Ink Vizplex displays used in portable e-reader applications and support panel sizes up to 9.7 inches. Two high-efficiency DC DC boost converters generate ±17-V rails which are boosted to 22 V and 20 V by two change pumps to provide the gate driver supply for the Vizplex panel. Two tracking LDOs create the ±15-V source...
TPS65181 Key Features
- 1 Single-Chip Power Management Solution for E Ink® Vizplex™ Electronic Paper Displays
- Generates Positive and Negative Gate and Source Driver Voltages and Back-Plane Bias from a Single, Low-Voltage Input Sup
- 3-V to 6-V Input Voltage Range
- Boost Converter for Positive Rail Base
- Inverting Buck-Boost Converter for Negative Rail
- Two Adjustable LDOs for Source Driver Supply
- LDO1: 15 V, 120 mA (VPOS)
- LDO2: -15 V, 120 mA (VNEG)
- Accurate Output Voltage Tracking
- VNEG = ±50 mV
TPS65181 Applications
- Power Supply for Active Matrix E Ink Vizplex Panels