1 Features

? Fully integrated high-density isolated DC/DC

module with isolation transformer

? Isolated DC/DC for driving: IGBTs, SiC FETs

? Input voltage range: 21 V to 27 V with 32-V

absolute maximum

? 2.0-W output power at TA ≤ 85°C and > 1.5 W at

TA = 105 °C

? Adjustable (VDD – VEE) output voltage (with

external resistors): 18 V to 25 V, ±1.3 regulation

accuracy over full temperature range

? Adjustable (COM – VEE) output voltage (with

external resistors): from 2.5 V to (VDD – VEE),

±1.3 regulation accuracy over full temperature

range

? Low electromagnetic emission with spread

spectrum modulation and integrated transformer

design

? Enable, Power Good, UVLO, OVLO, soft-start,

short-circuit, power-limit, under-voltage, overvoltage,

and over-temperature protection

? CMTI > 150 kV/μs

? AEC-Q100 qualified for automotive applications

– Temperature grade 1: –40°C ≤ TJ ≤ 150°C

– Temperature grade 1: –40 °C ≤ TA ≤ 125°C

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? Planned safety-related certifications:

– 4243-VPK basic isolation per DIN EN IEC

60747-17 (VDE 0884-17)

– 3000-VRMS isolation for 1 minute per UL1577

– Basic insulation per CQC GB4943.1

? 36-pin, wide SSOP package

2 Applications

? Hybrid, electric and power train system (EV/HEV)

– Inverter and motor control

– On-board (OBC) and wireless charger

– DC/DC converter

? Grid infrastructure

– EV charging station power module

– DC charging (pile) station

– String inverter

? Motor drives

– AC Inverters and VF Drives, Robot servo drive

? Industrial transport

– Off-highway vehicles electric drive

3 Description

UCC14240-Q1 is an automotive qualified high

isolation voltage DC/DC power module designed to

provide power to IGBT or SiC gate drivers. The

UCC14240-Q1 integrates a transformer and DC/DC

controller with a proprietary architecture to achieve

high efficiency with very low emissions. The highaccuracy

output voltages provide better channel

enhancement for higher system efficiency without

over-stressing the power device gate.

The UCC14240-Q1 provides up to 2.0 W (typical)

of isolated output power at high efficiency. Requiring

a minimum of external components and including

on-chip device protection, the module provides

extra features such as input undervoltage lockout,

overvoltage lockout, output voltage power-good

comparators, overtemperature shutdown, soft-start

time-out, adjustable isolated positive and negative

output voltage, an enable pin, and an open-drain

output power-good pin.