TPS61055 具有标准逻辑接口的 500mA 高功率白光 LED 驱动器
TPS61055 描述
The TPS6105x device uses a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external components, minimizing input ripple current.
The 2-MHz switching frequency allows the use of small and low-profile 2.2-µH inductors. To optimize overall efficiency, the device operates with only a 250-mV LED feedback voltage.
The TPS6105x device not only operates as a regulated current source, but also as a standard voltage-boost regulator. This additional operating mode can be useful to supply other high-power devices in the system, such as a hands-free audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage.
|
TPS61050 |
TPS61052 |
TPS61054 |
TPS61055 |
TPS61058 |
TPS61059 |
| Topology |
Boost |
Boost |
Boost |
Boost |
Boost |
Boost |
| Type |
Inductive |
Inductive |
Inductive |
Inductive |
Inductive |
Inductive |
| Vin(Min)(V) |
2.5 |
2.5 |
2.5 |
2.5 |
2.7 |
2.7 |
| Vin(Max)(V) |
6 |
6 |
6 |
6 |
5.5 |
5.5 |
| Switch Current Limit(Typ)(A) |
1.5 |
1.5 |
1.5 |
1.0 |
1.1 |
1.5 |
| Output Voltage(Max)(V) |
5.25 |
5.25 |
5 |
5 |
5.5 |
5.5 |
| Switching Frequency(Max)(kHz) |
2000 |
2000 |
2000 |
2000 |
650 |
650 |
| LED(#) |
1 |
1 |
1 |
1 |
1 |
1 |
| LED Configuration |
Series |
Series |
Series |
Series |
Series |
Series |
| Over-Voltage Protection(Min)(V) |
5.7 |
5.8 |
5.7 |
5.7 |
6.1 to 5.9 |
6.1 to 5.9 |
| Peak Efficiency(%) |
96 |
96 |
96 |
96 |
80 |
80 |
| Iq(Typ)(mA) |
8.5 |
8.5 |
8.5 |
8.5 |
5.5 |
5.5 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
10SON, 12DSBGA |
10SON, 12DSBGA |
10SON, 12DSBGA |
10SON, 12DSBGA |
10SON |
10SON |
| Iout(Max)(A) |
1.2 |
1.2 |
1.2 |
1.2 |
0.5 |
0.8 |
| Regulated Outputs(#) |
|
|
|
|
1 |
1 |
TPS61055 特性
- Four Operational Modes
- Torch and Flash up to ILED = 700 mA
- Voltage-Regulated Boost Converter: 5.0 V
- Shutdown: 0.3 µA (typ)
- Total Solution Circuit Area < 25 mm2
- Up to 96% Efficiency
- Integrated LED Turn-On Safety Timer
- Zero Latency TX-Masking Input
- Integrated Low Light Dimming Mode
- LED Disconnect During Shutdown
- Open/Shorted LED Protection
- Over-Temperature Protection
- Available in a 12-Pin NanoFree™ (CSP) and 10-Pin QFN Packaging
- APPLICATIONS
- Camera White LED Torch/Flash for Cell Phones, Smart-Phones and PDAs
- General Lighting Applications
- Audio Amplifier Power Supply
TPS61055 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 |
| TPS61055DRCR |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BRV |
| TPS61055DRCRG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
BRV |
| TPS61055DRCT |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BRV |
| TPS61055DRCTG4 |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
BRV |
| TPS61055YZGR |
ACTIVE |
-40 to 85 |
1.05 | 1ku |
DSBGA (YZG) | 12 |
3000 | LARGE T&R |
TPS61055 |
| TPS61055YZGT |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
DSBGA (YZG) | 12 |
250 | SMALL T&R |
TPS61055 |
TPS61055 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 |
| TPS61055DRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61055DRCR |
TPS61055DRCR |
| TPS61055DRCRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61055DRCRG4 |
TPS61055DRCRG4 |
| TPS61055DRCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61055DRCT |
TPS61055DRCT |
| TPS61055DRCTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61055DRCTG4 |
TPS61055DRCTG4 |
| TPS61055YZGR |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
TPS61055YZGR |
TPS61055YZGR |
| TPS61055YZGT |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
TPS61055YZGT |
TPS61055YZGT |
TPS61055 应用技术支持与电子电路设计开发资源下载
- TPS61055 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)
TPS61055 相关工具
