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UCC27524DR

Dual 5A low-side gate driver, -5V input, SOIC-8

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Manufacturer Part：

UCC27524DR

Package：

SOIC-8 (4.9 x 3.9 x 1.5 mm)

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Description

Product Overview

The UCC27524DR from Texas Instruments is a dual 5A high-speed low-side gate driver with negative input voltage capability in SOIC-8 package. Designed for MOSFET and IGBT gate drive applications.

Key Specifications

Channels 2 (dual non-inverting)
Peak Output Current 5A source / 5A sink
Propagation Delay 25 ns typical
Rise/Fall Time 15 ns / 12 ns typical @ 1.8nF
Supply Voltage 4.5V to 18V
Negative Input Voltage -5V continuous on IN pins
Input Threshold TTL/CMOS compatible
Enable Yes (per channel, active high)
Package SOIC-8 (D suffix)
Operating Temperature -40 to +125 C

Features

  • Dual 5A peak output for driving large MOSFET/IGBT gates
  • -5V negative input voltage capability for noisy environments
  • 25ns low propagation delay for high-frequency switching
  • Independent enable pins for each channel
  • Split output pins (OUTH/OUTL) for independent gate resistors

Applications

  • Motor drive inverter MOSFET/IGBT gate drive
  • Solar inverter switching stage driver
  • Switch-mode power supply gate driver
  • DC-DC converter synchronous rectifier driver
  • Class-D audio amplifier output stage driver

The UCC27524DR from Texas Instruments is a dual-channel high-speed low-side gate driver capable of delivering 5A peak source and sink current per channel in SOIC-8 package. A key feature is the negative input voltage capability (-5V continuous) on the input pins, which provides robust operation in noisy motor drive environments where ground bounce can drive signals below ground. The 25ns typical propagation delay and 15ns/12ns rise/fall times enable high-frequency switching up to several hundred kHz. The D suffix denotes SOIC-8 package and R indicates tape and reel.

The UCC27524DR operates as a dual low-side gate driver. (1) Each channel receives a logic input (INA/INB) and provides a high-current gate drive output. The input stage features a comparator with TTL/CMOS thresholds and negative voltage tolerance. The -5V input capability means the input pins can be driven 5V below ground without damage or malfunction, critical in motor drive applications where the power ground can bounce below the logic ground during high-current switching events. (2) The output stage uses a bipolar totem-pole architecture capable of 5A peak source and sink current. This high drive capability rapidly charges and discharges the gate capacitance of large MOSFETs or IGBTs, minimizing switching losses. The split output configuration (OUTH/OUTL on some variants) allows independent optimization of turn-on and turn-off gate resistors. (3) The independent enable pins (ENA/ENB) allow each channel to be disabled independently, supporting half-bridge configurations where both switches must not be on simultaneously. The 25ns propagation delay is consistent between channels, minimizing dead-time requirements.

Pin Name Function
1 INA Channel A input (non-inverting)
2 ENA Channel A enable (active high)
3 INB Channel B input (non-inverting)
4 ENB Channel B enable (active high)
5 OUTB Channel B output
6 VDD Power supply (4.5-18V)
7 OUTA Channel A output
8 GND Ground
  • Motor drive inverter MOSFET/IGBT gate drive with -5V input tolerance
  • Solar inverter switching stage driver with 5A gate drive
  • Switch-mode power supply gate driver with independent enables
  • DC-DC converter synchronous rectifier driver with fast propagation
  • Class-D audio amplifier output stage driver with low delay
Model Manufacturer Key Difference
UCC27525DR TI Dual, one inverting/one non-inverting
UCC27531DBVR TI Single 4A, SOT-23-5
IXDN609SI IXYS 9A single, negative input
TC4427ACOA Microchip Dual 1.5A, SOIC-8
FAN3121T onsemi 10A single, SOT-89
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