PMIC - Full, Half-Bridge Drivers

Part Number	Description / PDF	Quantity
IRSM515-084DA2-INF IR (Infineon Technologies)	IRSM515 - AC MOTOR CONTROLLER	2160
NJW4814MLE-TE1 New Japan Radio (NJR)	DUAL H-BRIDGE DRIVER WITH BOOST	0
LCS700LG Power Integrations	INTEGRATED LLC CONTROLLER	0
STK621-041A-E	MICRO PERIPHERAL IC	168
IRSM515-024DA2 IR (Infineon Technologies)	IRSM515 - INTELLIGENT POWER MODU	4800
IRSM515-015DA2 IR (Infineon Technologies)	IRSM515 - INTELLIGENT POWER MODU	3600
ISL99380BFRZ-T Intersil (Renesas Electronics America)	5V SMART POWER STAGE GEN2 (SPS)	0
IRSM515-015DA IR (Infineon Technologies)	IRSM515-015 - INTELLIGENT POWER	1614
IRSM515-055DA2 IR (Infineon Technologies)	IC MOTOR DRIVER 500V 23DIP	0
LA6584M-TLM-H	BRUSHLESS DC MOTOR CONTROLLER, 1	108000
FDMF6840C3 Sanyo Semiconductor/ON Semiconductor	MODULE DRMOS 50A 40PQFN	0
FX021 Texas Instruments	IC MOSFET MOD 8VSON-CLIP	0
MAX20766EPE+ Maxim Integrated	SMART SLAVE IC WITH INTEGRATED C	1454490
LB1668-H	MOTION CONTROL ELECTRONIC	0
MASTERGAN4 STMicroelectronics	HIGH POWER DENSITY 600V HALF BRI	397
IRSM515-025DA IR (Infineon Technologies)	IRSM515-025 - INTELLIGENT POWER	34090
TND506MD-TL-E Sanyo Denki SanUPS Products	TRANSISTOR DRIVER FOR APPLICATIO	309000
NCV7544MWTXG Sanyo Semiconductor/ON Semiconductor	AUTOMOTIVE DRIVER	0
STK534UC60A-E Sanyo Semiconductor/ON Semiconductor	3PHASE INVERTER HIC	0
IRSM505-044DA IR (Infineon Technologies)	IRAM MODULE, 250V, 4A RMS	5760

PMIC - Full, Half-Bridge Drivers

1. Overview

Full and Half-Bridge Drivers are critical components in power management integrated circuits (PMICs), designed to control power transistors in high-side and low-side configurations. These drivers enable precise switching of MOSFETs or IGBTs in power conversion systems, playing a pivotal role in motor control, DC-DC converters, and motorized industrial equipment. Their ability to manage high-voltage/current loads with minimal switching losses makes them indispensable in modern electrification and automation systems.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Full-Bridge Driver	Controls four power transistors in H-bridge configuration, enabling bidirectional current flow	Brushed DC motor control, servo actuators, resonant converters
Half-Bridge Driver	Drives high-side and low-side transistors in complementary mode	DC-DC converters, BLDC motor drives, Class-D amplifiers

3. Structure and Composition

Typical physical construction includes:

Multi-layer QFN/TSSOP packaging with thermal pad
Internal level shifters for high-side gate driving
Dead-time control logic to prevent shoot-through
Integrated protection circuits (OCP, OTP, UVLO)
Bootstrap circuitry for high-side power supply

Technical composition combines CMOS control logic with high-voltage DMOS output stages.

4. Key Technical Specifications

Parameter	Typical Range	Importance
Operating Voltage	4.5V-100V	Determines system compatibility
Peak Drive Current	0.2A-4.0A	Affects switching speed and efficiency
Switching Frequency	100kHz-2MHz	Impacts system size and EMI
RDS(on)	50m -300m	Directly affects conduction loss
Propagation Delay	5ns-100ns	Critical for high-frequency synchronization

5. Application Areas

Industrial automation (servo drives, robotic arms)
Electric vehicles (on-board chargers, DC-DC converters)
Consumer electronics (BLDC motor drives in appliances)
Medical equipment (precision actuator control)
Renewable energy systems (solar inverters, energy storage)

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
TI	DRV8703D	Three-phase gate driver with current sensing
STMicro	L6398	High-voltage half-bridge driver with bootstrap
Infineon	IRS2003	300V half-bridge driver for Class-D audio
ON Semi	NCP5911B	Single-channel high-side driver with diagnostics
Renesas	ISL78692	Automotive full-bridge controller with PWM

7. Selection Guidelines

Key considerations:

Match voltage rating with system bus voltage (1.5x safety margin)
Calculate RMS current requirements vs. package thermal capability
Evaluate dead-time adjustability for specific switching frequency
Select appropriate protection features for operating environment
Consider package size vs. cooling requirements

Example: For 48V motor drives, select drivers with 80V rating, >1A peak current, and thermal shutdown.

Industry Trend Analysis

Future development focuses on:

Integration with current sensing and protection circuits
Adoption of wide-bandgap device drivers (SiC/GaN compatibility)
Intelligent drivers with digital interfaces (PWM/PWM with feedback)
Reduced on-resistance (<50m ) for high-current applications
AEC-Q100 automotive qualification becoming standard

The market is shifting towards higher integration and smarter power management solutions driven by EV and IoT applications.