TPS65162
- 8-V to 14.7-V Input Voltage Range
- 500 kHz / 750 kHz Fixed Switching Frequency
- Boost Output Voltage up to 19 V
- 1%-Accurate Boost With 2.8-A Switch Current Overvoltage Protection
- Input-to-Output Isolation Switch for Vs Short-Circuit protection for Boost
- 2.5-A Step-Down Converter
- Regulated Positive Charge-Pump Driver VGH
- Regulated Negative Charge-Pump Driver VGL
- Gate Voltage Shaping for VGH
- Soft Start for all Converters
- Two Integrated High-Speed Opamps
- 50-MHz, 3-dB Bandwidth
- Slew Rate 55 V / µs
- 215-mA Short-Circuit Current
- 48 Pin 7x7 mm QFN Package
The TPS65162 is a compact LCD bias IC with two high-speed operational amplifiers for the Vcom supply. The high current capability of the device is ideal for large LCD-monitor and LCD-TV applications.
The TPS65162 generates all four voltage rails for a TFT LCD (Vs, Vlogic, VGH and VGL) and includes two op-amps to generate the VCOM supply rail. An input-to-output isolation switch is integrated into the device, providing short-circuit protection for the boost converter. A current-limit function is implemented in the input-to-output isolation switch to allow soft turn-on during start-up. The device also features gate voltage shaping for improved TFT-LCD picture quality. The device consists of a boost converter to provide the source voltage Vs, and a step-down converter to provide the logic voltage for the system. A positive and a negative charge-pump driver provide adjustable regulated output voltages VGH and VGL to bias the TFT. Both boost and buck converter, as well as the charge-pump drivers, operate with a fixed switching frequency of 500 kHz or 750 kHz, selectable by the FREQ pin. The device includes adjustable power-on sequencing. The safety features of the device are overvoltage protection for boost converter, short-circuit protection for Vs, Vlogic and VGH, and thermal shutdown.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Compact LCD Bias IC With High Speed Amplifiers for TV-LCD Panels datasheet (Rev. C) | 2012/07/03 | |
| Application note | 스트컨버터의 전력계 기본 계산 (Rev. D) | PDF | HTML | 2022/11/21 | |
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018/09/19 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Application note | Generation of a VCOM buffer input using PWM signal | 2015/12/21 | ||
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015/08/17 | ||
| User guide | TPS65162EVM-278 (Rev. A) | 2009/10/05 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 착수하기 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
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