TPS61062 具有白光 LED 亮度控制电源的 24V、400mA 开关，1MHz 升压转换器
TPS61062 描述
The TPS61060/61/62 is a high-frequency, synchronous boost converter with constant current output to drive up to 5 white LEDs. For maximum safety, the device features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz fixed switching frequency to allow for the use of small external components and to simplify possible EMI problems. The device comes with three different overvoltage protection thresholds (14 V/18 V/23 V) to allow inexpensive and small-output capacitors with lower voltage ratings. The LED current is initially set with the external sense resistor Rs, and the feedback voltage is regulated to 500 mV or 250 mV, depending on the ILED pin configuration.
|
TPS61060 |
TPS61061 |
TPS61062 |
| Topology |
Boost |
Boost |
Boost |
| Type |
Inductive |
Inductive |
Inductive |
| Vin(Min)(V) |
2.7 |
2.7 |
2.7 |
| Vin(Max)(V) |
6 |
6 |
6 |
| Switch Current Limit(Typ)(A) |
0.4 |
0.4 |
0.4 |
| Output Voltage(Max)(V) |
15 |
19 |
24 |
| Switching Frequency(Max)(kHz) |
1200 |
1200 |
1200 |
| LED(#) |
3 |
4 |
5 |
| LED Configuration |
Series |
Series |
Series |
| Over-Voltage Protection(Min)(V) |
14 |
18 |
22 |
| Peak Efficiency(%) |
83 |
82 |
81 |
| Iq(Typ)(mA) |
1 |
1 |
1 |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
| Pin/Package |
8SON, 8DSBGA |
8DSBGA, 8SON |
8SON, 8DSBGA |
| Iout(Max)(A) |
0.06 |
0.06 |
0.06 |
| Regulated Outputs(#) |
1 |
1 |
1 |
TPS61062 特性
- LED Driver With Integrated Overvoltage and Short-Circuit Protection
- 2.7-V to 6-V Input Voltage Range
- 500-mV/250-mV Feedback Voltage
- TPS61060 Powers Up to 3 LEDs
- TPS61061 Powers Up to 4 LEDs
- TPS61062 Powers Up to 5 LEDs
- PWM Brightness Control on Enable
- Digital Brightness Control on ILED
- 1-MHz Fixed Switching Frequency
- 400-mA Internal Power MOSFET Switch
- LEDs Disconnected During Shutdown
- Operates With Small-Output Capacitors Down to 220 nF
- Up to 80% Efficiency
- 8-Pin NanoFreeTM Package (Chipscale, CSP)
- 3 × 3-mm QFN Package
- APPLICATIONS
- White LED Driver
- Cellular Phones
- PDA, Pocket PC, and Smart Phones
- Digital Still Camera
TPS61062 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 |
| TPS61062DRBR |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
SON (DRB) | 8 |
3000 | LARGE T&R |
|
| TPS61062DRBRG4 |
ACTIVE |
-40 to 85 |
0.85 | 1ku |
SON (DRB) | 8 |
3000 | LARGE T&R |
|
| TPS61062YZFR |
ACTIVE |
-40 to 85 |
0.95 | 1ku |
DSBGA (YZF) | 8 |
3000 | LARGE T&R |
|
| TPS61062YZFT |
ACTIVE |
-40 to 85 |
1.05 | 1ku |
DSBGA (YZF) | 8 |
250 | SMALL T&R |
|
TPS61062 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 |
| TPS61062DRBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61062DRBR |
TPS61062DRBR |
| TPS61062DRBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TPS61062DRBRG4 |
TPS61062DRBRG4 |
| TPS61062YZFR |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
TPS61062YZFR |
TPS61062YZFR |
| TPS61062YZFT |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
TPS61062YZFT |
TPS61062YZFT |
TPS61062 应用技术支持与电子电路设计开发资源下载
- TPS61062 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)
- PowerPADTM 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)
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