LM5046

활성

MOSFET 드라이버가 통합된 위상 전환 풀 브리지 PWM 컨트롤러

지금 주문하기

데이터 시트

document-pdfAcrobat LM5046 Phase-Shifted Full-Bridge PWM Controller With Integrated MOSFET Drivers datasheet (Rev. H) (영어) PDF | HTML

LM5046

활성

데이터 시트

지금 주문하기

제품 상세 정보

Topology

Phase-shifted full bridge

Control mode

Current

Features

Adjustable switching frequency, Current limiting, Error amplifier, High-voltage startup, Integrated gate drivers, SR logic, Soft start, Soft switching

Duty cycle (max) (%)

100

Sector

Test & measurement

Topology

Phase-shifted full bridge

Control mode

Current

Features

Adjustable switching frequency, Current limiting, Error amplifier, High-voltage startup, Integrated gate drivers, SR logic, Soft start, Soft switching

Duty cycle (max) (%)

100

Sector

Test & measurement

WQFN (RSG)

28

25 mm² (5 mm × 5 mm)

HTSSOP (PWP)

28

62.08 mm² (9.7 mm × 6.4 mm)

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

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.

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5개 모두 보기

상위 문서	유형	직함	형식 옵션	날짜
*	데이터 시트	LM5046 Phase-Shifted Full-Bridge PWM Controller With Integrated MOSFET Drivers datasheet (Rev. H)	PDF \| HTML	2013. 5. 3
	선택 가이드	Power Management Guide 2018 (Rev. R)		2018. 6. 25
	애플리케이션 노트	AN-2116 SolarMagic ICs in Micro-inverter Applications (Rev. B)		2013. 5. 6
	애플리케이션 노트	AN-2126 LM5046 Based Eighth Brick Reference Design (Rev. B)		2013. 5. 6
	애플리케이션 노트	Using a Phase-Shifted Full-Bridge Topology in Small Form Factor Power Converters		2011. 8. 31