TDZ8907
Cost-optimized, high-efficiency, PWM input boosted Piezo driver with volume control
TDZ8907
- Supply Voltage Range 2.5V1 to 5.5V
- Compatible with alkaline, coin, CR, and lithium batteries
- Integrated programmable boost converter, 11.5V or 15.5V with hardware pin control
- 1uF Load Piezo Capacitance Support
- 98% High-Efficiency Boost
- 20Hz-70kHz DIN Input PWM Frequency Support
- <1nA Ultra-Low Shutdown Current
- <200µs Fast Wake-Up from DIN LO to HI
- DIN
Multi-functional Input Pin
- Input PWM
- Shutdown and Wake-Up control
- 100ms shutdown hysteresis from DIN HI to LO
- Additional
Boost Load Supported with 33nF Load
- Up to 80mA from 11.5V boost
- Up to 50mA from 15.5V boost
- External Boost Mode up to 10.2V
- 2S Lithium Battery Support up to 10V
- Thermal Shutdown Protection
- Over-current Protection
- Over-voltage Protection
- Under-voltage Lockout Protection
The TDZ8907 is a low cost, compact, highly efficient, boosted piezoelectric driver optimized for space constrained and power sensitive applications. From a supply voltage down to 2.5V, TDZ8907 integrates a 2-level, programmable boost converter capable of generating 11.5V or 15.5V for volume control with a wide bandwidth differential output stage, making TDZ8907 an excellent choice for compact, battery operated designs such as building automation (fire safety, building security), appliances, smart trackers, and medical backup buzzers. TDZ8907’s simple to use design can easily generate audible alerts, beeps, buzzes, or tones in applications using piezo sounders up to 1uF.
The TDZ8907 supports an external input PWM signal for driving complementary output signals across a piezo element. The boost output can be used to supply 80mA current to external peripherals such as LEDs.
The integrated boost converter is designed for low-EMI and small footprint inductance of 1.0uH using a boost switching frequency of 1.8MHz.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TDZ8907 Low-Cost, High-Efficiency, 31VPP Boosted Piezo Sounder/Actuator Driver with Volume Control datasheet | PDF | HTML | 2026. 10. 9 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TDZ8907EVM — TDZ8907 평가 모듈
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RFG) | 10 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.