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Texas Instruments UCC14341-Q1 Automotive Isolated DC/DC Module

Texas Instruments UCC14341-Q1 Automotive Isolated DC/DC Module offers high isolation and is created to deliver power to IGBT or SiC gate drivers. The UCC14341-Q1 incorporates a transformer and DC/DC controller with a proprietary architecture to accomplish high efficiency with very low emissions. The high-accuracy output voltages supply higher system efficiency and does not over-stress the power device gate.

The fully integrated TI UCC14341-Q1 module with on-chip device protection requires minimum external components and includes on-chip device protection and extra features. These features for the device include input under-voltage lockout, output voltage power good comparators, over-voltage lockout, overtemperature shutdown, soft-start timing, adjustable isolated positive and negative output voltage, an open-drain output power good pin, and enable pin.

Features

High-density isolated DC/DC module with integrated transformer
Isolated DC/DC for driving with IGBTs, SiC FETs
Input voltage range of 13.5V to 16.5V with 32V absolute maximum
1.5W output power for 13.5V < V_VIN < 16.5V, at T_A ≤ 105°C
Adjustable single or dual output voltages (using resistors) with <±1.3% regulation accuracy over the full operating 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 >150kV/µs
AEC-Q100 qualified for automotive applications
- Temperature grade 1 of -40°C ≤ T_J ≤ 150°C
- Temperature grade 1 of -40°C ≤ T_A ≤ 125°C
Functional safety-capable documentation available to aid functional safety system design
Planned safety-related certifications
- 7071VPK reinforce isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 5000V_RMS isolation for 1 minute per UL 1577
- Reinforce insulation per CQC GB4943.1
36-pin, wide SSOP package

Applications

Hybrid, electric, and power train systems (EV/HEV)
- Inverter and motor control
- On-board (OBC) and wireless charger
- DC/DC converter
Motor drives
- AC Inverters and VF Drives, Robot servo drive

Grid infrastructure
- EV charging station power module
- DC charging (pile) station
- String inverter
Industrial transport
- Off-highway vehicle’s electric drive

Texas Instruments UCC14341-Q1 Automotive Isolated DC/DC Module

Features

Applications

Device Comparison Table

Simplified Application

Typical Power-up Sequence

Functional Block Diagram

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