TPS65146 具有 LDO、GPM 的 3 通道 LCD 偏置、VCOM 缓冲器和复位 IC
|
TPS65146 |
| Vin(Min)(V) |
2.5 |
| Vin(Max)(V) |
6 |
| Vout(Min)(V) |
7 |
| Vout(Max)(V) |
16.5 |
| LDO |
1 |
| DC/DC Converter |
2 |
| Charge Pump |
1 |
| Pin/Package |
24VQFN |
| Vlogic1 Ilim(Min)(A) |
LDO 500mA |
| Vlogic1(Min)(V) |
1.3 |
| VGH / Vpos (Igh) |
50mA |
| VGL / Vneg (Igl) |
External |
| GVS/GPM (Vghm)(Max)(V) |
32 |
| VCOM |
Buffer 130mA |
| Operating Temperature Range(°C) |
-40 to 85 |
| Switching Frequency(Typ)(kHz) |
1200 / 600 |
| AVDD Ilim(Min)(A) |
2 |
| Analog Voltage AV/DD(Max)(V) |
16.5 |
| Over-Voltage Protection(Max)(V) |
19 |
| Regulated Outputs(#) |
3 |
| Rating |
Catalog |
| Function |
Boost |
| Topology |
Boost, Inverting Buck/Boost Bias |
| Special Function |
Reset (/XAO), LCD Discharge |
| Iout(Max)(A) |
2 |
| Iq(Typ)(mA) |
4.5 |
| Target Application |
Monitor, Notebook-PC |
TPS65146 描述
The TPS65146 offers a very compact power supply solution designed to supply the LCD bias voltages required by TFT (Thin Film Transistor) LCD panels running from a typical 3.3 V or 5 V supply rail. The device integrates a step-up converter for VS (Source Driver voltage), a positive charge pump regulator for VGH (Gate Driver High voltage), a logic voltage rail using an integrated LDO and a Vcom buffer driving the LCD backplane. In addition to that, a gate voltage shaping block is integrated for VGH, modulating the signal (into VGHM) with high flexibility by using a logic input VFLK and an external discharge resistor connected to RE pin. Also, an external discrete negative charge pump can be set using the boost converter of the TPS65146 to generate VGL (Gate Driver Low voltage).
TPS65146 特性
- 2.5V to 6.0V Input Voltage Range
- 16.5V Boost Converter With 2A Switch Current
- 650kHz/1.2MHz Selectable Switching Frequency
- Adjustable Soft-Start for the Boost Converter
- 500mA LDO
- Reset Function (XAO Signal)
- Regulated VGH
- Gate Voltage Shaping
- VCOM Buffer
- LCD Discharge Function
- Overvoltage Protection
- Thermal Shutdown
- Undervoltage Lockout
- 24-Pin 4×4mm QFN Package
- APPLICATIONS
TPS65146 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） | Quantity |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS65146RGER |
ACTIVE |
-40 to 85 |
1.80 | 1ku |
VQFN (RGE) | 24 |
3000 | LARGE T&R |
TPS
65146 |
TPS65146 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TPS65146RGER |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65146RGER |
TPS65146RGER |
TPS65146 应用技术支持与电子电路设计开发资源下载
- TPS65146 数据资料 dataSheet 下载.PDF
- TI 德州仪器照明解决方案产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPAD™ Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TPS65146 相关工具