1 Features

• Fully integrated high-density isolated DC/DC

module with isolation planar transformer

• Wide input range: 5.5V to 28V (with 22V OVLO)

– ≥ 2.0W typical output for VVIN = 12V ±10%, 12V

≤ VVDD-COM ≤ 18V, at TA ≤ 85°C

– ≥ 1.6W typical output for 8V ≤ VVIN ≤ 18V, 12V

≤ VVDD-COM ≤ 18V, at TA ≤ 85°C

– ≥ 0.6W typical output for 6V ≤ VVIN ≤ 7V, and ≥

0.5W for VVIN = 5.5V, at TA ≤ 105°C

• Programmable (VDD – COM) output voltage

– 12V to 18V, ≤ ±1.5% total regulation accuracy

• Programmable (VEE – COM) output voltage

– -2V to -8V, ≤ ±5% total regulation accuracy

• Adaptive spread spectrum modulation (SSM)

• Strong magnetic and radiated field immunities

• Reduced inrush current soft-start

• ENA pin for logic enable and programming input

UVLO

• Open-drain Power-Good for fault indicator

• Integrated protections: UVLO, OVLO, short-circuit,

OVP, UVP, and thermal shutdown.

• < 3pF isolation capacitance

• Static and dynamic CMTI > ±250kV/μs

• AEC-Q100 qualified for automotive applications

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

• Safety-related certifications (Planned):

– Reinforced isolation per DIN EN IEC 60747-17

(VDE 0884-17)

– UL 1577 / CSA component recognition program

• 16-pin, wide body SOIC 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

• Industrial transport

– Off-highway vehicle electric drive

• Power delivery

– Rack and server power

3 Description

The UCC35131-Q1 is an automotive qualified high

isolation voltage DC/DC power module designed to

provide power to IGBT, SiC, Si and GaN isolated gate

drivers and UIR Sensors. Its proprietary integrated

transformer, flip-chip package, and advanced control

architectures achieve high power density, low noise,

and lowest system BOM. This device is capable

of delivering 2.0W typical output power at 85oC

ambient temperature. The highly accurate dual-output

voltages, easily set by resistor dividers, enable low

on-resistance, fast and reliable switching for SiC,

IGBT and GaN devices. The low-latency feedback

control reduces the output capacitance for fast load

transient and supports dynamic voltage programming.

The wide input voltage and adjustable VIN UVLO

supports both wide battery voltage of electric vehicles

and regulated input rails. It is operational from 5.5V to

20V VIN, and can withstand VIN overvoltage transient

up to 28V.

The integrated protection features, fault-report Power-

Good pin, and enable function increase system

robustness and save external components. The

SOIC package with 8.2mm creepage and clearance

distance ensures high isolation capability.