TPS65123
- 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.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Single-Inductor Quadruple-Output TFT LCD Power Supply datasheet (Rev. A) | 2005年 3月 28日 | |
Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018年 9月 19日 | ||
Application note | Generation of a VCOM buffer input using PWM signal | 2015年 12月 21日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS65120EVM-076 — TPS65120 評估模組
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 評估模組
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 — PSpice® for TI 設計與模擬工具
封裝 | 引腳 | 下載 |
---|---|---|
VQFN (RGT) | 16 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。