TPS61150A
- 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
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. When used together, the two outputs can drive up to 14 WLED for one large display.
In addition to the small inductor, small capacitor and 3mm x 3mm QFN package, the built-in MOSFET and diode eliminate the need for any external power devices. Overall, the IC provides an extremely compact solution with high efficiency and plenty of flexibility.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Dual Output Boost WLED Driver Using Single Inductor datasheet | 2006/10/06 | |
| 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 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 2011/06/17 | ||
| EVM User's guide | TPS61150EVM-150 (Rev. A) | 2006/10/26 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | 2006/09/15 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| VSON (DRC) | 10 | 옵션 보기 |
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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