TPS61500
- 2.9-V to 18-V Input Voltage Range
- 3-A, 40-V Internal Power Switch
- Four 3-W LEDs From 5-V Input
- Eight 3-W LEDs From 12-V Input
- High-Efficiency Power Conversion: Up to 93%
- Frequency Set by External Resistor: 200 kHz to 2.2 MHz
- User-Defined Soft Start Into Full Load
- Programmable Overvoltage Protection
- Analog and Pure PWM Brightness Dimming
- 14-Pin HTSSOP Package With PowerPAD™
The TPS61500 is a monolithic switching regulator with integrated 3-A, 40-V power switch. It is an ideal driver for high brightness 1-W or 3-W LED. The device has a wide input voltage range to support application with input voltage from multi-cell batteries or regulated 5-V or 12-V power rails.
The LED current is set with an external sensor resistor R3, and the feedback voltage that is regulated to 200 mV by current mode PWM (pulse width modulation) control loop, as shown in Typical Application Circuit. The device supports analog and pure PWM dimming methods for LED brightness control. Connecting a capacitor to the DIMC pin configures the device to be used for analog dimming, and the LED current varies proportional to the duty cycle of an external PWM signal. Floating the DIMC pin configures the device for pure PWM dimming with the average LED current being the PWM signal’s duty cycle times a set LED current.
The device features a programmable soft-start function to limit inrush current during start-up, and it has other built-in protection features, such as pulse-by-pulse overcurrent limit, overvoltage protection, and thermal shutdown. The TPS61500 is available in 14-pin HTSSOP package with PowerPAD.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS61500 High-Brightness, LED Driver With Integrated 3-A, 40-V Power Switch datasheet (Rev. F) | PDF | HTML | 2019. 5. 30 | |
| 백서 | Common LED Functions and LED Driver Design Considerations | 2020. 9. 21 | |||
| 애플리케이션 노트 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018. 12. 11 | |||
| 애플리케이션 노트 | TPS61500 SEPIC Configuration | 2018. 4. 5 | |||
| 애플리케이션 노트 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017. 6. 15 | |||
| 아날로그 디자인 학술지 | Design considerations for a resistive feedback divider in a DC/DC converter | 2012. 4. 26 | |||
| 애플리케이션 노트 | Analog Dimming With the TPS61500 Using an Analog Input Signal | 2009. 4. 30 | |||
| 추가 자료 | Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies | 2001. 2. 15 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS61500EVM-369 — TPS61500EVM-369 평가 모듈
The TPS61500EVM-369 facilitates evaluation of the TPS61500 High Brightness LED Driver IC.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 14 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.