TPS65120
- Main Output, VMAIN
- Adjustable Voltage, 3.0 V to 5.6 V/25 mA
- Post-Regulated for Low Ripple (5mVPP)
- ±0.8% Typical Accuracy
- Efficiency up to 83%
- Positive Output, VGH
- Adjustable Voltage up to 20 V/2 mA
- ±3% Typical Accuracy
- Negative Output, VGL
- Adjustable Voltage down to -18 V/2 mA
- ±3% Typical Accuracy
- Auxiliary 1.8 V/3.3 V Linear Regulator
- Automatic or Programmable Power Sequencing
- Complete 1 mm Component Profile Solution
- 2.5 V to 5.5 V Input Voltage Range
- Output Short Circuit Protected
- 16-Pin QFN Package (3 × 3 × 0,9 mm)
- APPLICATIONS
- Small Form Factor a-Si and LTPS TFT LCD
- Cell Phones, Smart Phones
- PDAs, Pocket PCs
- Portable DVD
- Digital-Still Cameras, Camcorders
- Handheld Instruments
- Portable GPS
- Car Navigation Systems
The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.
The main output, VMAIN, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The auxiliary outputs generate a boosted output voltage, VGH, up to 20 V, and a negative output voltage, VGL, down to -18 V for the LCD gate drive. The device has internal current limiting for high reliability under fault conditions. Additionally, the device offers a fixed output linear regulator for the LCD logic circuitry.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Single-Inductor Quadruple-Output TFT LCD Power Supply datasheet (Rev. A) | 2005/03/28 | |
| 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 | TFT-LCD Power Supply Using TPS65120 Single Inductor Quadruple-Output Powr Supply | 2006/06/13 | ||
| EVM User's guide | TPS65120EVM-076, TPS65124EVM-076 User's Guide | 2004/06/07 |
설계 및 개발
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TPS65120EVM-076 — TPS65120 평가 모듈
The TPS65120EVM-076 is an evaluation tool for the TPS65120 multi-channel power supply for small form-factor TFT LCD displays. The evaluation module can accept input voltages in range of 2.5V to 5.5V and supplies Vmain = 5V, Vgh = 12V and Vgl = -12V to power a-Si or LTPS TFT displays. Other voltages (...)
TPS65124EVM-076 — TPS65124 평가 모듈
The TPS65124EVM-076 is an evaluation tool for the TPS65124 multi-channel power supply for small form-factor TFT LCD displays. The evaluation module can accept input voltages in range of 2.5V to 5.5V and supplies Vmain = 5V, Vgh = 12V and Vgl = -12V to power a-Si or LTPS TFT displays. Other voltages (...)
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 (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| VQFN (RGT) | 16 | 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