company blog about Mingjiada Electronics Supplies Large Quantities of TI UCC27524 Dual-Channel 5A High-Speed Low-Side Gate Drivers

Shenzhen Mingjiada Electronics Co., Ltd. (Mingjiada Electronics) has been supplying large quantities of Texas Instruments (TI) UCC27524 series dual-channel high-speed low-side gate drivers on a long-term basis. The UCC27524 is a gate driver chip specifically designed for the efficient driving of power MOSFETs and IGBT switches. With its robust driving capability of 5A peak sink and source current, ultra-short propagation delay of 17ns, and a wide operating voltage range of 4.5V to 18V, it has become the ideal choice for power electronics applications such as switching power supplies, motor control and solar inverters.

Product Overview

The UCC27524 is a dual-channel, high-speed, low-side gate driver capable of effectively driving MOSFET and IGBT power switches. Part of the UCC2752x series, the device utilises an industry-standard pin configuration and features two independent gate drive channels.

Key Features and Benefits

The UCC27524 offers the following outstanding features, setting it apart from its peers:

1. Robust Drive Capability

Each channel of the UCC27524 can deliver a peak source current of up to 5A and a peak sink current of up to 5A. This powerful drive capability enables rapid charging and discharging of the gate capacitance of power MOSFETs or IGBTs, significantly reducing switching times and switching losses. TI’s proprietary internal circuit design substantially reduces shoot-through current, effectively minimising the chip’s own power consumption and heat generation whilst ensuring high-current output.

Furthermore, the two channels can be connected in parallel to achieve a higher equivalent drive current, making them particularly suitable for driving SiC MOSFETs or IGBT modules with extremely high gate charges.

II. Ultra-fast response in the nanosecond range

In high-speed switching applications, propagation delay is a key metric for evaluating gate driver performance. The UCC27524 has a typical propagation delay of just 17 ns, with a maximum of no more than 23 ns. The typical rise time is 6 ns, and the typical fall time is 10 ns. These figures demonstrate that the UCC27524 not only switches extremely rapidly but also features very steep rising and falling edges, minimising the time the switching devices spend in the linear region and significantly reducing switching losses.

It is particularly worth emphasising that the typical delay matching between the two channels is just 1 ns. This characteristic is crucial for applications such as synchronous rectification, which require strict timing coordination between the two gates; a matching accuracy of 1 ns ensures that the turn-on and turn-off times of the two switching devices are highly synchronised.

III. Wide Voltage Range and Compatibility

The UCC27524 supports a single-supply voltage range of 4.5 V to 18 V. The input pins are designed with TTL- and CMOS-compatible logic thresholds, which are independent of the supply voltage VDD. This means it is fully compatible with the logic levels of microcontrollers operating at common voltage levels such as 3.3 V and 5 V.

A wide hysteresis of approximately 1 V between the high and low thresholds provides excellent noise immunity; even if noise or ringing of a certain amplitude is superimposed on the input signal, it will not cause the output state to flip incorrectly.

4. Negative Input Voltage Handling Capability

The UCC27524’s input pins are capable of directly handling negative voltages down to –5V. In practical applications, negative voltage spikes may occur at the input pins due to factors such as parasitic inductance and capacitance within the circuit. This feature prevents damage to the device caused by negative voltages, significantly enhancing the system’s robustness and reliability.

5. Comprehensive Protection Functions

The UCC27524 features VDD under-voltage lock-out (UVLO) protection; when VDD is in the UVLO state, the output remains at a low level, ensuring interference-free operation during power-up and power-down. When the input is left floating, the output also remains at a low level, effectively preventing accidental conduction. Each output channel also provides independent enable functions (ENA and ENB pins), allowing flexible control of each channel’s output according to system requirements.

VI. Wide Operating Temperature Range

The UCC27524 has an operating junction temperature range of –40°C to 150°C, enabling it to withstand a wide variety of harsh industrial and automotive environments.

UCC27524 Technical Specifications Summary

Number of drive channels: 2 channels (independent)

Peak sink current: 5 A

Peak source current: 5 A

Supply voltage range: 4.5 V to 18 V

Propagation delay (typical): 17 ns

Rise time (typical): 6 ns

Fall time (typical): 10 ns

Channel-to-channel delay matching: 1 ns (typical)

Logic threshold: TTL and CMOS compatible

Negative input voltage capability: –5 V

Operating junction temperature range: –40 °C to 150 °C

Package Options

The UCC27524 is available in a variety of package options to meet the requirements of different applications:

UCC27524D: SOIC-8 4.90 mm × 3.91 mm

UCC27524DSD: WSON-8 3.00 mm × 3.00 mm

Specific models available from Mingjiada Electronics include the UCC27524ADR (SOIC-8 package) and the UCC27524DSDR (WSON-8 package), amongst others.

Typical Applications

Thanks to its outstanding performance, the UCC27524 is widely used in the following fields:

Switch-mode power supplies (SMPS): Gate driving of MOSFETs/IGBTs in high-frequency switch-mode power supplies

DC-DC converters: Driving power switches in DC-DC converters

Motor control: Low-side switch driving in industrial motor drives and servo control

Solar inverters: Power switch driving in photovoltaic inverters

Wide-bandgap power device gate driving: Driving of emerging power devices such as GaN (gallium nitride)

Synchronous rectification: Applications with strict timing requirements for dual-gate driving

Power factor correction (PFC)

Industrial automation and robotics

Mingjiada Electronics – Your Reliable Supply Partner

Shenzhen Mingjiada Electronics Co., Ltd. was established in 1996. Headquartered in Shenzhen, the company has established branches in Hong Kong, Japan, Russia and other locations, building a global supply network for electronic components. As a leading global authorised independent distributor, Mingjiada Electronics has long distributed products from over 500 internationally renowned semiconductor manufacturers, including TI (Texas Instruments), Infineon, ST, NXP, Microchip, ADI and Xilinx.

Mingjiada Electronics maintains a substantial stock of the UCC27524 series gate drivers, all brand new and genuine, with quality guaranteed. With over 20 years of in-depth industry experience, robust supply chain capabilities and highly competitive pricing, Mingjiada Electronics is committed to providing customers in sectors such as industrial control, automotive electronics, telecommunications equipment and consumer electronics with full lifecycle support, from R&D and design through to mass production and delivery.

Whether you require samples during the R&D phase or are looking to make large-scale purchases for mass production, Mingjiada Electronics can provide you with professional, efficient and reliable component supply services.

For further product information, the latest quotations or to order samples, please contact Shenzhen Mingjiada Electronics Co., Ltd.!

Tags: UCC27524DSDR, UCC27524DSD, UCC27524DS, UCC27524D, UCC27524