TPS60255
- 2.7 V to 6.0 V Input Voltage Range
- 1× and 1.5× Charge Pump
- Auto Switching Between 1× and 1.5× Modes
- 750 kHz Charge Pump Frequency
- Seven Individually-regulated WLED Current Sinks
- Single- Wire Interface for Dimming and ON/OFF Control
- 25 mA max LED Current for Six Current Sinks
- One 80 mA Current Sink
- Open WLED Detection
- Built-in Soft Start and Current Limit
- 16-pin, 3 mm × 3 mm QFN Package
- APPLICATIONS
- Cellular Phones
- Portable Navigation Displays
- Multi-display Handheld Devices
The TPS60255 is a high-efficiency, constant frequency charge pump DC/DC converter that uses 1× and 1.5× conversion to maximize efficiency for the input voltage range. By using adaptive 1×/1.5× charge-pump modes and very low dropout current regulators, the TPS60255 achieves high efficiency for the entire one-cell lithium battery range. The protection features include soft start, over-current limit, thermal shut down, and over-voltage detection. The device automatically detects and removes unused current sinks from the control loop.
This device drives six 25 mA current sinks and one 80 mA current sink. These current regulators are programmed by three independent brightness registers and five ON/OFF bits using a single-wire interface (EasyScale™). This offers flexible applications for a variety of lighting control in portable devices.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs DRIVER WITH 1 WIRE INTERFACE datasheet | 2008/03/24 | |
White paper | Common LED Functions and LED Driver Design Considerations | 2020/09/21 | ||
Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||
Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
Application note | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017/06/15 | ||
EVM User's guide | TPS60255EVM-262 | 2008/03/03 |
설계 및 개발
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TPS60255EVM-SW — TPS60255 EVM 소프트웨어
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
WQFN (RTE) | 16 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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