Phase-Shifted Full-Bridge PWM Controller Module – LM5046 Breakout Board

Rajkumar Sharma
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SKU: EL114482
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This is a Phase-Shifted Full-Bridge PWM LM5046 carrier board that contains all of the features necessary to implement a phase-shifted full-bridge topology power converter. All inputs and outputs pins are accessible using the header connector. High efficiency DC-DC converter can be created using LM5046 carrier board + External H-Bridge and Transformer. Refer to the datasheet of LM5046 and schematic to configure the frequency, current feedback, delays, etc.

Features

Operating Power Supply 36V (Range 36V to 75V DC)
Under Voltage Lockout UVLO (34V/32V ON/OFF)
Frequency Of Operations 420Khz (Programmable up to 2Mhz- Set Resistor R10)
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 Pre-biased 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
PCB Dimensions 36.20 x 25.40 mm

Connector CN1: Connections

PIN 1 VIN 36V (36V-75V RANGE)
PIN 2 HS2
PIN 3 HO1
PIN 4 LO1
PIN 5 GND
PIN 6 LO2
PIN 7 HO2
PIN 8 HS2
PIN 9 SR1
PIN 10 SR2
PIN 11 CS-CURRENT SENSE
PIN 12 COMP
PIN 13 REF VOLT OUT
PIN 14 GND

Schematic

Parts List

NO	QNTY.	REF.	DESC	MANUFACTURER	SUPPLIER	SUPPLIER PART NO
1	1	CN1	14 PIN MALE HEADER PITCH 2.54MM	SULIN	DIGIKEY	S1011EC-40-ND
2	1	C1	0.1uF/100V SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
3	1	C2	1KPF/50V SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
4	5	C3,C5,C6,C7,C10	0.1uF/50V SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
5	1	C4	100PF/50V SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
6	1	C8	0.01uF/50V SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
7	1	C9	0.022uF/50V SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
8	1	C11	1uF/100V	MURATA	DIGIKEY	490-14436-1-ND
9	1	D1	LED RED SMD SIZE 0805	LITE ON	DIGIKEY	160-1427-1-ND
10	3	D2,D3,D4	1N4148	MICROCHIP	DIGIKEY	1086-15170-ND
11	1	R1	20E 5% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
12	1	R2	100K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
13	1	R3	0E SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
14	1	R4	3K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
15	1	R5	6.04K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
16	1	R6	2.61K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
17	1	R7	1.65K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
18	2	R8,R12	499E 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
19	1	R9	18E 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
20	1	R10	24K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
21	1	R11	15K 1% SMD SIZE 0805	MURATA/YAGEO	DIGIKEY
22	1	U1	LM5046	TI	DIGIKEY	LM5046MH/NOPB-ND