TPS61150A Dual Output Boost WLED Driver Using Single Inductor
TPS61150A 描述
The TPS61150A is a high frequency boost converter with two regulated current outputs for driving WLEDs. Each current output can be individually programmed through external resistors. There is dedicated selection pin for each output, so the two outputs can be turned on separately or simultaneously. The output current can be reduced by a pulse width modulation (PWM) signal on the select pins or an analog voltage on the ISET pin. The boost regulator runs at 1.2MHz fixed switching frequency to reduce output ripple and avoid audible noises associated with PFM control.
The two current outputs are ideal for driving WLED backlight for the sub and main displays in clam shell phones. The two outputs can also be used for driving display and keypad backlights
|
TPS61150 |
TPS61150A |
TPS61151 |
| Topology |
Boost |
Boost |
Boost |
| Type |
Inductive |
Inductive |
Inductive |
| Vin(Min)(V) |
3 |
2.5 |
3 |
| Vin(Max)(V) |
6 |
6 |
6 |
| Switch Current Limit(Typ)(A) |
0.7 |
0.7 |
0.7 |
| Output Voltage(Max)(V) |
27 |
27 |
27 |
| Switching Frequency(Max)(kHz) |
1200 |
1200 |
1200 |
| LED(#) |
2 x 6 |
2 x 6 |
2 x 6 |
| LED Configuration |
2x Series |
2x Series |
2x Series |
| Over-Voltage Protection(Min)(V) |
27 |
28 |
22 |
| Peak Efficiency(%) |
85 |
83 |
85 |
| Iq(Typ)(mA) |
2 |
2 |
2 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
10SON |
10SON |
10SON |
| Iout(Max)(A) |
0.035 |
0.034 |
0.035 |
| Regulated Outputs(#) |
2 |
2 |
2 |
TPS61150A 特性
- 2.5V to 6V Input Voltage Range
- 0.7A Integrated Switch
- Built-in Power Diode
- 1.2MHz Fixed PWM Frequency
- Individually Programmable Output Current
- Input-to-Output Isolation
- Built-in Soft Start
- 27V Overvoltage Protection
- 3% at 15mA Matching between Two Current Strings, Improvement from TPS61150/1
- Up to 83% Efficiency
- Up to 30kHz PWM Dimming Frequency
- Availiable in a 10 Pin, 3 × 3 mm QFN Package
- APPLICATIONS
- Up to 14 WLED Driver for Media Form Factor Display
- Sub and Main Display Backlight in Clam Shell Phones
- Display and Keypad Backlight in Portable Equipment
TPS61150A 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 |
| TPS61150ADRCR |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BCQ |
| TPS61150ADRCRG4 |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BCQ |
| TPS61150ADRCT |
ACTIVE |
|
1.40 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BCQ |
| TPS61150ADRCTG4 |
ACTIVE |
|
1.40 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BCQ |
TPS61150A 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 |
| TPS61150ADRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS61150ADRCR |
| TPS61150ADRCRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61150ADRCRG4 |
TPS61150ADRCRG4 |
| TPS61150ADRCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
TPS61150ADRCT |
| TPS61150ADRCTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61150ADRCTG4 |
TPS61150ADRCTG4 |
TPS61150A 应用技术支持与电子电路设计开发资源下载
- TPS61150A 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)
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