TPS65145 具有完全集成的 正极 充电泵的 4 通道 LCD 偏置、3.3V LDO 控制器、0.96A 最低 升压 Ilim 和故障检测
|
TPS65145 |
| Vin(Min)(V) |
2.7 |
| Vin(Max)(V) |
5.8 |
| Vout(Min)(V) |
5 |
| Vout(Max)(V) |
15 |
| LDO |
1 |
| DC/DC Converter |
1 |
| Charge Pump |
2 |
| Pin/Package |
24HTSSOP, 24VQFN |
| Vlogic1 Ilim(Min)(A) |
LDO Controller |
| Vlogic1(Min)(V) |
Fixed 3.3 |
| VGH / Vpos (Igh) |
Integrated 30V max., 20mA |
| VGL / Vneg (Igl) |
20mA |
| Operating Temperature Range(°C) |
-40 to 85 |
| Switching Frequency(Typ)(kHz) |
1600 |
| AVDD Ilim(Min)(A) |
0.96 |
| Analog Voltage AV/DD(Max)(V) |
15 |
| Over-Voltage Protection(Max)(V) |
5% of AVDD |
| Regulated Outputs(#) |
4 |
| Rating |
Catalog |
| Function |
Display Bias |
| Topology |
Boost, Inverting Buck/Boost |
| Duty Cycle(Max)(%) |
100 |
| Iq(Typ)(mA) |
4.1 |
| Target Application |
Large & Medium Form Factor |
TPS65145 描述
The TPS6514x series offers a compact and small power supply solution to provide all three voltages required by thin film transistor (TFT) LCD displays. The auxiliary linear regulator controller can be used to generate a 3.3-V logic power rail for systems powered by a 5-V supply rail only.
The main output VO1 is a 1.6-MHz fixed frequency PWM boost converter providing the source drive voltage for the LCD display. The device is available in two versions with different internal switch current limits to allow the use of a smaller external inductor when lower output power is required. The TPS65140/41 has a typical switch current limit of 2.3 A and the TPS65145 has a typical switch current limit of 1.37 A. A fully integrated adjustable charge pump doubler/tripler provides the positive LCD gate drive voltage
TPS65145 特性
- 2.7-V to 5.8-V Input Voltage Range
- 1.6-MHz Fixed Switching Frequency
- 3 Independent Adjustable Outputs
- Main Output up to 15 V With <1% Typical Output Voltage Accuracy
- Virtual Synchronous Converter Technology
- Negative Regulated Charge Pump Driver VO2
- Positive Charge Pump Converter VO3
- Auxiliary 3.3-V Linear Regulator Controller
- Internal Soft Start
- Internal Power-On Sequencing
- Fault Detection of all Outputs (TPS65140/45)
- No Fault Detection (TPS65141)
- Thermal Shutdown
- System Power Good
- Available in TSSOP-24 and QFN-24 PowerPAD™ Packages
- APPLICATIONS
- TFT LCD Displays for Notebooks
- TFT LCD Displays for Monitors
- Portable DVD Players
- Tablet PCs
TPS65145 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 |
| TPS65145PWP |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
HTSSOP (PWP) | 24 |
60 | TUBE |
TPS65145 |
| TPS65145PWPG4 |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
HTSSOP (PWP) | 24 |
60 | TUBE |
TPS65145 |
| TPS65145PWPR |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
HTSSOP (PWP) | 24 |
2000 | LARGE T&R |
TPS65145 |
| TPS65145PWPRG4 |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
HTSSOP (PWP) | 24 |
2000 | LARGE T&R |
TPS65145 |
| TPS65145RGER |
ACTIVE |
-40 to 85 |
1.45 | 1ku |
VQFN (RGE) | 24 |
3000 | LARGE T&R |
TPS
65145 |
| TPS65145RGERG4 |
ACTIVE |
-40 to 85 |
1.45 | 1ku |
VQFN (RGE) | 24 |
3000 | LARGE T&R |
TPS
65145 |
TPS65145 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 |
| TPS65145PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65145PWP |
TPS65145PWP |
| TPS65145PWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65145PWPG4 |
TPS65145PWPG4 |
| TPS65145PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65145PWPR |
TPS65145PWPR |
| TPS65145PWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65145PWPRG4 |
TPS65145PWPRG4 |
| TPS65145RGER |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65145RGER |
TPS65145RGER |
| TPS65145RGERG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS65145RGERG4 |
TPS65145RGERG4 |
TPS65145 应用技术支持与电子电路设计开发资源下载
- TPS65145 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)
TPS65145 相关工具
