TPS65186
- Single Chip Power-Management Solution for
E Ink Vizplex Electronic Paper Displays - Generates Positive and Negative Gates, Source
Driver Voltages, and Back-Plane Bias From a
Single, Low-Voltage Input Supply - Supports 9.7 Inch and Larger Panel Size
- 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
- LDO1: 15 V, 120 mA (VPOS)
- LDO2: –15 V, 120 mA (VNEG)
- Accurate Output Voltage Tracking
- VPOS – VNEG = ±50 mV
- Two Charge Pumps for Gate Driver Supply
- CP1: 22 V, 10 mA (VDDH)
- CP2: –20 V, 12 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)
- Integrated 10-Ω, 3.3-V Power Switch for Disabling
System Power Rail to E-Ink Panel
The TPS65186 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-mA 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 also source or sink current depending on panel condition. The TPS65186 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 nonvolatile memory to become the new VCOM power-up default value.
TPS65186 is available in a 48-pin 7-mm × 7-mm2 VQFN with 0.5-mm pitch.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS65186 PMIC for E Ink Vizplex Enabled Electronic Paper Display datasheet (Rev. A) | PDF | HTML | 2015/08/10 |
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018/09/19 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| VQFN (RGZ) | 48 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.