目录

1.产品概述       2.产品特点     w7o嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）w7o嘉泰姆

5.产品封装       6.电路原理图  w7o嘉泰姆

7.相关产品w7o嘉泰姆

   产品概述 返回TOPw7o嘉泰姆

The CXLC8955 is a single chip, multi outputs PMIC for Epaper displays. Two PWM converters respectively generate positive and negative voltages which are boosted to higher voltage by two charge pumps for both source and gate drivers. Two integrated power switches are used to disconnect these PWM outputs from load in shutdown mode. All PWM and charge pump output voltages are adjustable by external resistors and their power on/off timings can be individually programmable via I2C interface. One accurate VCOM voltage, for backplane biasing, is adjustable via I2C interface from -0.3V to -2.85V with 10mV per step. The VCOM is capable of sourcing and sinking current, depending on panel condition, at lease 100mA. An external negative temperature coefficient(NTC) resistor is incorporated to sense remote temperature. This remote temperature sensing can be used to monitor the battery’s surface temperature to avoid over heating. The temperature data is mapped from the voltage on TS pin according to a preset conversion table. Approximately every 250ms the CXLC8955 executes the voltage/temperature conversion and stores the temperature date in register in two’s complement format. The CXLC8955 is available in a space saving TQFN5x5 32-pin package and is specified over the -40oC to +85oC extended temperature range.

   产品特点 返回TOPw7o嘉泰姆

· Single Chip Power Management Solution for Epaper Displays w7o嘉泰姆

· Input SupplyVoltage Range: 3.0~5.5V w7o嘉泰姆

· I 2C Series Interface w7o嘉泰姆

· Boost Converter for Positive Rail Base (HVINP) w7o嘉泰姆

· Inverting Buck-Boost Converter for Negative Rail Base (HVINN) w7o嘉泰姆

· Accurate Voltage Tracking between HVINP and HVINN: +50mV w7o嘉泰姆

· Integrated Two Power Switches with Soft-start Control for Source Driver Supply -POS: +15V/120mA -NEG: -15V/120mA w7o嘉泰姆

· Two Charge Pump for Gate Driver Supply w7o嘉泰姆

 -DGVDD: +22V/20mA w7o嘉泰姆

 -DGVEE:-22V/20mA w7o嘉泰姆

· Accurate and Adjustable VCOM Voltage for Panel Backplane Biasing w7o嘉泰姆

- -0.3 to -2.85V/100mA, 10mV per step w7o嘉泰姆

 -8-bit Control w7o嘉泰姆

· Programmable Turn-on/Turn-off Timing in every Output Voltage w7o嘉泰姆

· Remote Temperature Sensing w7o嘉泰姆

· POK Output w7o嘉泰姆

· FAULTOutput w7o嘉泰姆

· Enable Input w7o嘉泰姆

· Current Limit Protection w7o嘉泰姆

· Over Temperature Protection w7o嘉泰姆

· Fault Events Report in Every Output for Easy Debugging w7o嘉泰姆

· 1MHz Fixed PWM Frequency w7o嘉泰姆

· Up to 85% efficiency for the Boost w7o嘉泰姆

· Internal Soft Start Control w7o嘉泰姆

· Available in TQFN5x5-32 Package w7o嘉泰姆

· Halogen and Lead Free Available (RoHS Compliant)w7o嘉泰姆

   应用范围 返回TOPw7o嘉泰姆

· E-paper Displayw7o嘉泰姆

   技术规格书（产品PDF) 返回TOP w7o嘉泰姆

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！w7o嘉泰姆

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产品封装图 返回TOPw7o嘉泰姆

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电路原理图 返回TOPw7o嘉泰姆

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