SY7636A
Overview
The SY7636A is a single-chip power management IC (PMIC) designed for electronic paper display (EPD) applications, and the device supports panel sizes up to 9.7 inches and greater. The device integrates two high efficiency DC/DC Boost converters that are boosted to 25V and -20V by two charge pumps to provide the gate driver supply for panels.
- 2.9V to 5.5V Input Voltage Range
- Boost Converter VP for the Power Input of Positive Rails
- Inverting Buck-Boost converter VN for the Power Input of Negative Rails
- Two Adjustable LDOs for Source Driver Supply o VPOS: 15 V, 200mA o VNEG: -15 V, 200mA o Accurate Output Voltage Tracking: VPOS+VNEG = ±50 mV
- Two Charge Pumps for Gate Driver Supply o VDDH: 25 V, 10mA (Up to 29V) o VEE: -20 V, 15mA (Down to -25V)
- Adjustable VCOM Driver for Accurate PanelBackplane Biasing o 0 V to -5V o ± 1.5% Accuracy (±10 mV) o 9-Bit Control (10-mV Nominal Step Size)
- Internal Active Discharge for VPOS, VNEG, VDDH, and VCOM
- Differential Temperature Sense Input and Digital Temperature Reporting
- I2C Compatible Interface
- Protection: UVLO, OTP, OCP, SCP, UVP
