DRV591
- ±3-A Maximum Output Current
- Low Supply Voltage Operation: 2.8 V to 5.5 V
- High Efficiency Generates Less Heat
- Over-Current and Thermal Protection
- Fault Indicators for Over-Current, Thermal and Under-Voltage Conditions
- Two Selectable Switching Frequencies
- Internal or External Clock Sync
- PWM Scheme Optimized for EMI
- 9×9 mm PowerPAD™ Quad Flatpack
- APPLICATIONS
- Thermoelectric Cooler (TEC) Driver
- Laser Diode Biasing
PowerPAD is a trademark of Texas Instruments.
The DRV591 is a high-efficiency, high-current power amplifier ideal for driving a wide variety of thermoelectric cooler elements in systems powered from 2.8 V to 5.5 V. PWM operation and low output stage on-resistance significantly decrease power dissipation in the amplifier.
The DRV591 is internally protected against thermal and current overloads. Logic-level fault indicators signal when the junction temperature has reached approximately 130°C to allow for system-level shutdown before the amplifier’s internal thermal shutdown circuitry activates. The fault indicators also signal when an over-current event has occurred. If the over-current circuitry is tripped, the DRV591 automatically resets (see application information section for more details).
The PWM switching frequency may be set to 500 kHz or 100 kHz depending on system requirements. To eliminate external components, the gain is fixed at approximately 2.3 V/V.
관심 가지실만한 유사 제품
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | +/-3 A High-Efficiency PWM Power Driver datasheet (Rev. A) | 2002. 5. 9 | ||
| EVM User's guide | DRV591 PWM Power Driver Evaluation Module User's Guide (Rev. A) | 2003. 5. 1 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DRV591EVM — DRV591 EVM(평가 모듈)
The DRV591 is a high-efficiency, high-current power amplifier ideal for driving a wide variety of thermo-electric cooler elements in systems powered from 2.8 V to 5.5 V. PWM operation and low output stage on-resistance significantly decrease power dissipation in the amplifier.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HLQFP (VFP) | 32 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.