Half-Bridge Driver Module – 48V/5A Load

Rajkumar Sharma
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SKU: EL156743
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This Half-Bridge Driver Module is a low-voltage power management solution designed to drive a wide range of applications, including DC motors, DC-DC converters, and other inductive and resistive loads. The module is engineered to operate within a load supply voltage range of up to 48V DC and can handle a maximum load current of 5A, making it an ideal choice for various low-voltage power management applications. The design utilizes low-cost N-channel MOSFETs, specifically the IRFZ44, which provide a reliable and efficient switching performance. Barrier terminal blocks are employed for the load power input, while a header connector is used for the gate driver supply and input signal. The driver operates with a single PWM (Pulse Width Modulation) signal, and the SD (Shutdown) pin is enabled by default with an internal pull-up resistor. To disable the output, simply connect the SD pin to the ground. The board supports the use of either TO220 or TO247 MOSFETs, with two IRFZ44PBF MOSFETs (60V, 50A, 0.028 ohm) used in this particular design. This flexibility allows for easy adaptation to different application requirements.

Note: The MOSFETs must be mounted on the heatsink, and is advisable to use a fan for full load capacity.

Key Features

Load supply: up to 48V DC (VL)
Load current: up to 5A
Gate Driver Power 12-15V (VCC)
Low-cost N-channel MOSFETs (IRFZ44)
Barrier Terminal blocks for load power input
Header connector for gate driver supply and input signal
Single PWM signal operation
SD pin with internal pull-up resistor for default enable
On Board Power LED
UVLO off Positive Going Threshold 9V
Supports TO220 or TO247 MOSFETs
4 x 4 mm PCB Mounting Holes
PCB Dimensions 79.85 x 40.0 1mm

This module is suitable for use in a variety of applications, including:

Motor control systems
Power management systems
DC-DC converters
Low-voltage power supplies
Industrial automation systems

Note: This board can be used to operate with higher voltage and current capabilities, allowing for the selection of different MOSFETs or IGBTs to suit specific application requirements. To ensure optimal performance, it is essential to consider the bootstrap capacitor, DC bus capacitors, and MOSFET gate resistors. For more detailed information, please refer to the datasheet of the chip, which provides comprehensive specifications and guidelines for proper configuration and usage

The LF2184N is a high-voltage, high-speed gate driver capable of driving N-channel MOSFETs and IGBTs in a half-bridge configuration. The high voltage technology enables the LF2184N’s high side to switch to 600V in a bootstrap operation. LF2184N logic inputs are compatible with standard TTL and CMOS levels (down to 3.3V) to interface easily with controlling devices. The driver outputs feature high pulse current buffers designed for minimum driver cross-conduction. LF2184N has a fixed internal dead time of 400ns (typical).

Connections

CN1 Power: Pin 1 = +Load Power (VL) , Pin 2 = GND
CN2: Pin 1 = VCC Gate Driver Power 12-15V DC, Pin 2 = PWM Input, Pin 3 = Shutdown, Pin 4 = GND
D1: Power LED

Schematic

Parts List

NO	QNTY	REF	DESC	MANUFACTURER	SUPPLIER PART NO
1	2	CN1,CN3	2 PIN BARRIER TERMINAL	TE CONNECTIVITY	A98481-ND
2	1	CN2	4 PIN MALE HEADER PITCH 2.54MM	WURTH	732-5317-ND
3	1	C1	150nF/275VX2 OR 100V	PANASONIC	P14787-ND
4	1	C2	DNP
5	1	C3	470uF/63V ELECTROLYTIC DIA-12.5MM	RUBYCON	1189-4027-ND
6	1	C4	1uF/25V CERAMIC SMD SIZE 1206	YAGEO/MURATA
7	1	C5	220uF/25V ELECTROLYTIC 8MM-DIA	WURTH	732-8829-1-ND
8	1	C6	100nF/50V CERAMIC SMD SIZE 0805	YAGEO/MURATA
9	1	D1	LED RED SMD SIZE 0805	OSRAM	475-1278-1-ND
10	1	D2	SS34	MDD	3372-SS34TR-ND
11	2	D3,D4	1N4148	DIOTEC	4878-LL4148CT-ND
12	2	Q1,Q2	IRFZ44 TO220	VISHAY	IRFZ44PBF-ND
13	1	R1	2.2K 5% SMD SIZE 0805	YAGEO/MURATA
14	3	R2,R4,R6	10E 5% SMD SIZE 1206	YAGEO/MURATA
15	2	R3,R5	4.7E 5% SMD SIZE 0805	YAGEO/MURATA
16	1	U1	LF2184 SOIC8	LITTELEFUSE	5656-LF2184NTRCT-ND