Product details

Vin (Max) (V) 27 Vin (Min) (V) 21 Iout (Max) (A) 0.1 Features Regulated, Dual output, 1.5W, Power good, Soft start, Enable, UVLO, Basic isolation Operating temperature range (C) -40 to 125 Regulated outputs (#) 2 Package type Leaded TI functional safety category Functional Safety-Capable
Vin (Max) (V) 27 Vin (Min) (V) 21 Iout (Max) (A) 0.1 Features Regulated, Dual output, 1.5W, Power good, Soft start, Enable, UVLO, Basic isolation Operating temperature range (C) -40 to 125 Regulated outputs (#) 2 Package type Leaded TI functional safety category Functional Safety-Capable
  • 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, over-voltage, 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
  • 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
  • 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, over-voltage, 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
  • 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

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 high-accuracy 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.

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 high-accuracy 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.

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Technical documentation

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* Data sheet UCC14240-Q1 Automotive 2.0-W, 24-V VIN, 25-V VOUT, High-Density, > 3 kVRMS, Isolated DC/DC Module datasheet (Rev. B) PDF | HTML 02 Dec 2022
White paper 具備最佳性能的 EV 牽引逆變器設計優先順序 PDF | HTML 27 Sep 2022
White paper 최적의성능을 갖춘 EV 트랙션 인버터에서 설계 우선 순위 PDF | HTML 27 Sep 2022
White paper Design Priorities in EV Traction Inverter With Optimum Performance PDF | HTML 23 Sep 2022
White paper Traction Inverters – A Driving Force Behind Vehicle Electrification PDF | HTML 08 Sep 2022
White paper 牽引逆變器 – 車輛電氣化背後的驅動力量 PDF | HTML 17 Aug 2022
White paper 트랙션 인버터 – 차량 전기화를 이끄는 동력 PDF | HTML 17 Aug 2022
Technical article How to design high-voltage systems with higher reliability while reducing solution size and cost 08 Jun 2022
White paper High-Voltage Semiconductor Solutions for Meeting Isolation Requirements (Rev. A) PDF | HTML 06 Jun 2022
White paper 以可靠且經濟實惠的隔離技術解決高電壓設計難題 (Rev. A) PDF | HTML 06 Jun 2022
White paper 높 은 신뢰도와 합리적인 가격대의 절연 기술 개발과 관련한 고전압 설계 문 제의 해결.. (Rev. A) PDF | HTML 06 Jun 2022
Functional safety information UCC1424x-Q1 Functional Safety FIT Rate, FMD, and Pin FMA PDF | HTML 27 May 2022
Technical article Increasing power density with an integrated GaN solution 14 Mar 2022
Technical article Misconceptions about EV charging 24 Feb 2022
Application note UCC14240-Q1 Simplifies HEV, EV, Bias Supply Design for Isolated Gate Drivers PDF | HTML 12 Feb 2022
More literature Isolated bias supply solutions for isolated gate drivers 15 Dec 2021
Technical article Driving next-generation EV systems with a distributed architecture 27 Sep 2021
Certificate UCC14240EVM-052 EU RoHS Declaration of Conformity (DoC) 02 Sep 2021
EVM User's guide Using the UCC14240EVM-052 for Biasing Traction Inverter Gate Driver ICs Requiri PDF | HTML 24 Aug 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

UCC14240EVM-052 — UCC14240-Q1 evaluation module for 1.5-W dual-output isolated DC-DC converter gate driver bias

The UCC14240-Q1 evaluation module (EVM) is a DC/DC converter module, providing 1.5-W of 3 kVRMS, isolated power in a low-profile, 3.5-mm, wide body SOIC integrated package. The UCC12040EVM-052 EVM can operate from 21 V < VIN < 27 V and is configured for dual outputs of VDD = +15 V and VEE = (...)

User guide: PDF | HTML
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Simulation model

UCC14240-Q1 Simplis Model

SLUM822.ZIP (203 KB) - SIMPLIS Model
Reference designs

PMP23223 — Smart isolated gate driver with bias supply reference design

This reference design demonstrates the combination of UCC21732 gate driver with a UCC14xxx series bias supply. This design can be used to drive a variety of power switches, including connecting directly to a Wolfspeed Silicon Carbide (SiC) field-effect transistor (FET) module. This reference (...)
Test report: PDF
Reference designs

PMP22817 — Automotive SPI-programmable gate driver and bias supply with integrated transformer reference design

This reference design provides isolated-bias supply and isolated-gate driver for power switches in traction inverters and onboard chargers. Both the bias power and driver provide the high isolation (3-kV RMS for one minute) needed for 800-VDC bus application. The isolated bias provides 24 VDC both (...)
Test report: PDF
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