Product Highlights > UCC20225 Isolated Dual-Channel Gate Driver

Texas Instruments' UCC20225 is an isolated single input, dual-channel gate driver with 4 A source and 6 A sink peak current in a space-saving 5 mm x 5 mm LGA-13 package. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5 MHz with best-in-class propagation delay and pulse-width distortion, in applications requiring the highest power density.

The input side is isolated from the two output drivers by a 2.5 kV_RMS reinforced isolation barrier with a minimum of 100 V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 700 V_DC.

This driver can be used for half-bridge driver with programmable dead time (DT). A disable pin shuts down both outputs simultaneously when it is set high and allows normal operation when left open or grounded. As a fail-safe measure, primary-side logic failures force both outputs low.

The device accepts V_DD supply voltages up to 25 V. A wide input VCCI range from 3 V to 18 V makes the driver suitable for interfacing with both analog and digital controllers. All the supply voltage pins have undervoltage lock-out (UVLO) protection.

With all these advanced features, the UCC20225 enables high power density, high efficiency, and robustness in a wide variety of power applications.

Features

Single input, dual output 5 mm x 5 mm space-saving LGA-13 package Operating temperature range -40°C to +125°C Switching parameters: 19 ns typical propagation delay 10 ns minimum pulse width 5 ns maximum delay matching 6 ns maximum pulse-width distortion Common-mode transient immunity (CMTI) greater than 100 V/ns Surge immunity up to 4600 V 4 A peak source, 6 A peak sink output TTL and CMOS compatible inputs

3 V to 18 V input VCCI range to interface with both digital and analog controllers Up to 25 V VDD output drive supply Programmable dead time Rejects input pulses and noise transients shorter than 5 ns Fast disable for power sequencing Safety-related and regulatory approvals: 3535 VPK isolation per DIN V VDE V 0884-10 and DIN EN 61010-1 (planned) 2500 VRMS isolation for 1 minute per UL 1577 (planned) CSA component acceptance notice 5A, IEC 60950-1 IEC 61010-1 end equipment standards (planned) CQC certification per GB4943.1-2011 (planned)