LM5046
- Highest Integration Controller for Small
Form Factor, High-Density Power Converters - High-Voltage Start-Up Regulator
- Intelligent Sync Rectifier Start-Up Allows
Linear Turn-on into Prebiased Loads - Synchronous Rectifiers Disabled in UVLO Mode
and Hiccup Mode - Two Independent, Programmable Dead-Time
Adjustments to Enable Zero-Volt Switching - Four High-Current 2-A Bridge Gate Drivers
- Wide-Bandwidth Opto-Coupler Interface
- Configurable for Either Current Mode or Voltage
Mode Control - Dual-Mode Overcurrent Protection
- Resistor Programmed 2-MHz Oscillator
- Programmable Line UVLO and OVP
The LM5046 PWM controller contains all of the features necessary to implement a phase-shifted full-bridge topology power converter using either current mode or voltage mode control. This device is intended to operate on the primary side of an isolated DC-DC converter with input voltage up to 100 V. This highly integrated controller-driver provides dual 2-A high- and low-side gate drivers for the four external bridge MOSFETs, plus control signals for the secondary-side synchronous rectifier MOSFETs. External resistors program the dead-time to enable zero-volt switching of the primary FETs. Intelligent startup of the synchronous rectifiers allows monotonic turnon of the power converter even with prebias load conditions. Additional features include cycle-by-cycle current limiting, hiccup mode restart, programmable soft-start, synchronous rectifier soft-start, and a 2-MHz capable oscillator with synchronization capability and thermal shutdown.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM5046 Phase-Shifted Full-Bridge PWM Controller With Integrated MOSFET Drivers datasheet (Rev. H) | PDF | HTML | 2013/05/03 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Application note | AN-2116 SolarMagic ICs in Micro-inverter Applications (Rev. B) | 2013/05/06 | ||
| Application note | AN-2126 LM5046 Based Eighth Brick Reference Design (Rev. B) | 2013/05/06 | ||
| User guide | AN-2115 LM5046 Evaluation Board (Rev. B) | 2013/05/03 | ||
| Application note | Using a Phase-Shifted Full-Bridge Topology in Small Form Factor Power Converters | 2011/08/31 |
설계 및 개발
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LM5046EVAL — LM5046용 평가 보드
The LM5046 evaluation board is designed to provide the design engineer with a fully functional power converter based on the phase-shifted full-bridge topology to evaluate the LM5046 PWM controller. The evaluation board is provided in an industry standard quarter brick footprint.
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 28 | 옵션 보기 |
| WQFN (RSG) | 28 | 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