TPS61140 数据表
TPS61140 描述
The TPS61140/1 is a dual output boost converter IC. It is intended to be configured as a highly integrated power solution providing regulated voltage and current output with one boost converter. This device is ideal for driving the OLED sub display and WLED backlight for the LCD main display in clam shell phones. The voltage and current can be individually programmed through external resistors. There is a dedicated selection pin for each output, so the two outputs can be turned on separately or simultaneously. When only the voltage output is enabled, the boost converter is controlled by pulse frequency modulation (PFM) in order to achieve high efficiency over a wide load range. If the current output is selected, the device adopts a 1.
|
TPS61140 |
TPS61141 |
| Topology |
Boost |
Boost |
| Type |
Inductive |
Inductive |
| Vin(Min)(V) |
3 |
3 |
| Vin(Max)(V) |
6 |
6 |
| Switch Current Limit(Typ)(A) |
0.7 |
0.7 |
| Output Voltage(Max)(V) |
27 |
27 |
| Switching Frequency(Max)(kHz) |
1200 |
1200 |
| LED(#) |
1 OLED + 4 |
1 OLED + 4 |
| LED Configuration |
2x Series |
2x Series |
| Over-Voltage Protection(Min)(V) |
28 |
28 |
| Peak Efficiency(%) |
85 |
85 |
| Iq(Typ)(mA) |
0.125 |
0.125 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Pin/Package |
10SON |
10SON |
| Iout(Max)(A) |
0.023 |
0.023 |
| Regulated Outputs(#) |
2 |
2 |
TPS61140 特性
- 2.5-V to 6-V Input Voltage Range
- Two Outputs Each up to 27 V
- 0.7-A Integrated Switch
- Built-In Power Diode
- 1.2-MHz PWM for WLED Driver
- PFM for OLED Supply
- Individually Programmable Output
- Input to Output Isolation
- Short-Circuit Protection
- Built-In Soft Start
- Overvoltage Protection
- Up to 82% Efficiency
- Up to 30 kHz PWM Dimming Frequency
- Available in a 10 Pin, 3 × 3 mm QFN Package
- APPLICATIONS
- Clamshell Phone With OLED/LCD Screen
TPS61140 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS61140DRCR |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BCP |
| TPS61140DRCRG4 |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BCP |
| TPS61140DRCT |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BCP |
| TPS61140DRCTG4 |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BCP |
TPS61140 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 |
| TPS61140DRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS61140DRCR |
| TPS61140DRCRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61140DRCRG4 |
TPS61140DRCRG4 |
| TPS61140DRCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS61140DRCT |
| TPS61140DRCTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61140DRCTG4 |
TPS61140DRCTG4 |
TPS61140 应用技术支持与电子电路设计开发资源下载
- TPS61140 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 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)
TPS61140 相关工具