1 Features

• High-density isolated DC/DC module with

integrated transformer

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

• Input voltage range: 13.5 V to 16.5 V with 32-V

absolute maximum

• 1.5-W output power for 13.5 V < VVIN < 16.5 V, at

TA ≤ 105°C

• Adjustable single or dual output voltages (using

resistors) with < ±1.3 regulation accuracy over

full operating range

• Low electromagnetic emission with spread

spectrum modulation and integrated transformer

• Enable, Power Good, UVLO, OVLO, softstart,

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:

– 5657-VPK basic isolation per DIN EN IEC

60747-17 (VDE 0884-17)

– 3000-VRMS isolation for 1 minute per UL 1577

– 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 drive

– AC inverter and VF drive, robot servo drive

• Industrial transport

– Off-highway vehicle electric drive

3 Description

UCC14340-Q1 is a high isolation voltage DC/DC

module designed to provide power to IGBT or SiC

gate drivers. The module integrates a transformer and

DC/DC controller with a proprietary architecture to

achieve high efficiency with very low emissions. The

high-accuracy output voltages provide higher system

efficiency without over-stressing the power device

gate.

The fully integrated module with on-chip device

protection requires a minimum of external

components, and provides extra features such

as input under-voltage lockout, over-voltage

lockout, output voltage powergood comparators, overtemperature

shutdown, soft-start timing, adjustable

isolated positive and negative output voltage, an

enable pin, and an open-drain output powergood pin.