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LM25122-Q1
- AEC-Q100 Qualified with the following results:
- Device Temperature Grade 1: -40°C to +125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C6
- Maximum Input Voltage : 42 V
- Min Input Voltage : 3 V (4.5 V for startup)
- Output Voltage up to 50 V
- Bypass (VOUT = VIN) Operation
- 1.2 V Reference with ±1.0% Accuracy
- Free-Run and Synchronizable Switching to 600 kHz
- Peak Current Mode Control
- Robust 3 A Integrated Gate Drivers
- Adaptive Dead-Time Control
- Optional Diode Emulation Mode
- Programmable Cycle-by-Cycle Current Limit
- Hiccup Mode Overload Protection
- Programmable Line UVLO
- Programmable Soft-Start
- Thermal Shutdown Protection
- Low Shutdown Quiescent Current: 9 µA
- Programmable Slope Compensation
- Programmable Skip Cycle Mode Reduces Standby Power
- Allows External VCC Supply
- Inductor DCR Current Sensing Capability
- Multiphase Capability
- Thermally Enhanced 20-Pin HTSSOP
The LM25122 is a multiphase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation.
The switching frequency is programmable up to 600 kHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode emulation mode also enables discontinuous mode operation for improved efficiency at light load conditions.
An internal charge pump allows 100% duty cycle for high-side synchronous switch (Bypass operation). A 180º phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit and adjustable line undervoltage lockout.
기술 문서
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모두 보기6 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM25122-Q1 Wide-Input Synchronous Boost Controller With Multiple Phase Capability datasheet (Rev. B) | PDF | HTML | 2016/05/27 |
| White paper | An overview of radiated EMI specifications for power supplies | 2018/06/05 | ||
| White paper | An overview of conducted EMI specifications for power supplies | 2018/02/01 | ||
| Application brief | Improve DC/DC Regulator EMI for Free with Optimized Power Stage Layout | 2017/11/13 | ||
| Technical article | Get loud with a 700W automotive audio amplifier for infotainment systems | PDF | HTML | 2017/06/15 | |
| More literature | TI Automotive External Amplifiers (Rev. A) | 2017/02/03 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 20 | 옵션 보기 |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치