TPS65185
- Single Chip Power-Management Solution for
E Ink® Vizplex™ Electronic Paper (E-Paper) Displays - Generates Positive and Negative Gates, and Source Driver Voltages and Back-Plane Bias From a Single, Low-Voltage Input Supply
- Supports 9.7-Inch and Larger Panel Sizes
- 3-V to 6-V Input Voltage Range
- Boost Converter for Positive Rail Base
- Inverting Buck-Boost Converter for Negative Rail Base
- Two Adjustable LDOs for Source Driver Supply
- TPS65185 LDO1: 15 V, 120 mA (VPOS)
- TPS65185 LDO2: –15 V, 120 mA (VNEG)
- TPS651851 LDO1: 15 V, 200 mA at
VIN ≥ 3.6 V (VPOS) - TPS651851 LDO2: –15 V,
200 mA at
VIN ≥ 3.6 V (VNEG)
- Accurate
Output Voltage Tracking
- VPOS – VNEG = ±50 mV
- Two Charge Pumps for Gate Driver
Supply
- CP1: 22 V, 15 mA (VDDH)
- CP2: –20 V, 15 mA, (VEE)
- Adjustable VCOM Driver for Accurate
Panel-Backplane Biasing
- 0 V to –5.11 V
- ± 1.5% accuracy (±10 mV)
- 9-Bit Control (10-mV Nominal Step Size)
- Active Discharge on All Rails
- Integrated 10-Ω, 3.3-V Power Switch for Disabling System Power Rail to E-Ink Panel
The TPS65185x device is a single-chip power supply designed to for E Ink Vizplex displays used in portable e-reader applications, and the device supports panel sizes up to 9.7 inches and greater. Two high efficiency DC-DC boost converters generate ±16-V rails that 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 driver supplies that support up to 120/200 mA (TPS65185/TPS651851) of output current. All rails are adjustable through the I2C interface to accommodate specific panel requirements.
Accurate back-plane biasing is provided by a linear amplifier that can be adjusted from 0 V to –5.11 V with 9-bit control through the serial interface; it can source or sink current depending on panel condition. The TPS65185x supports automatic panel kickback voltage measurement, which eliminates the need for manual VCOM calibration in the production line. The measurement result can be stored in non-volatile memory to become the new VCOM power-up default value.
TPS65185 is available in two packages, a 48-pin 7-mm × 7-mm2 VQFN (RGZ) with 0.5-mm pitch, and a 48-pin 6-mm × 6-mm2 VQFN (RSL) with 0.4-mm pitch. The TPS651851 is available in a 48-pin 6-mm × 6-mm2 VQFN (RSL) with 0.4-mm pitch.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS65185x PMIC for E Ink® Vizplex™ Enabled Electronic Paper Display datasheet (Rev. G) | PDF | HTML | 2017. 9. 21 | |
| 애플리케이션 노트 | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018. 9. 19 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 기술 문서 | Use PMICs to extend battery life in portable applications | PDF | HTML | 2016. 9. 8 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS65185EVM — TPS65185EVM
TPS65185EVM은 EINK 디스플레이 드라이버인 TPS65185의 성능을 평가하기 위한 완제품 플랫폼입니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RSL) | 48 | Ultra Librarian |
| VQFN (RGZ) | 48 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.