Datasheet Texas Instruments TPS60255RTET — 数据表
制造商 | Texas Instruments |
系列 | TPS60255 |
零件号 | TPS60255RTET |
7通道,高效175mA电荷泵,用于白光LED背光16-WQFN -40至85
数据表
HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs DRIVER WITH 1 WIRE INTERFACE datasheet
PDF, 926 Kb, 档案已发布: Mar 24, 2008
从文件中提取
价格
状态
Lifecycle Status | Active (Recommended for new designs) |
Manufacture's Sample Availability | No |
打包
Pin | 16 |
Package Type | RTE |
Industry STD Term | WQFN |
JEDEC Code | S-PQFP-N |
Package QTY | 250 |
Carrier | SMALL T&R |
Device Marking | BUP |
Width (mm) | 3 |
Length (mm) | 3 |
Thickness (mm) | .75 |
Pitch (mm) | .5 |
Max Height (mm) | .8 |
Mechanical Data | 下载 |
参数化
Number of Channels | 7 |
Duty Cycle(Max) | 100 % |
LED | 4+2+1 |
LED Current Per Channel | 25 mA |
Operating Temperature Range | -40 to 85 C |
Package Group | WQFN |
Package Size: mm2:W x L | 16WQFN: 9 mm2: 3 x 3(WQFN) PKG |
Peak Efficiency | 93 % |
Rating | Catalog |
Shutdown Current(Typ) | 0.1 uA |
Special Features | Analog Dimming,EasyScale 1-Wire Interface,Enable/Shutdown,Fault Detection,Integrated Switch,Load Disconnect During Shutdown,OVP,Soft Start,Synchronous Rectification |
Switching Frequency(Max) | 875 kHz |
Topology | Boost |
Type | Capacitive |
Vin(Max) | 6 V |
Vin(Min) | 2.7 V |
Vout(Max) | 6.5 V |
Vout(Min) | 2.7 V |
生态计划
RoHS | Compliant |
设计套件和评估模块
- Evaluation Modules & Boards: TPS60255EVM-262
TPS60255EVM-262 Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
应用须知
- Ballast Resistor Calculation – Current Matching in Parallel LEDsPDF, 351 Kb, 档案已发布: Apr 16, 2009
Engineers often need to connect LEDs in parallel. Ideally, the LEDs share current equally. In reality, even LEDs from the same production lot have poorly matched I-V characteristics. This mismatch causes the LEDs to not share the current equally. The engineer can add a ballast resistor in series with each LED to minimize current differences. This application report explains how to size the ball - Extending the Soft Start Time Without a Soft Start Pin (Rev. B)PDF, 387 Kb, 修订版: B, 档案已发布: Jun 15, 2017
- Performing Accurate PFM Mode Efficiency Measurements (Rev. A)PDF, 418 Kb, 修订版: A, 档案已发布: Dec 11, 2018
When performing measurements on DC-DC converters using pulse frequency modulation(PFM)or any power save mode proper care must be taken to ensure that the measurements are accurate. An accurate PFM mode efficiency measurement is critical for systems which require high efficiency at low loads such as in smart home systems tablets wearables and metering.
模型线
系列: TPS60255 (2)
- TPS60255RTER TPS60255RTET
制造商分类
- Semiconductors > Power Management > LED Driver > Backlight LED Driver