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See Technical Specifications

UCC28730QDRQ1 +BOM

Zero-power standby PSR flyback controller for automotive

Manufacturer:

TI
Mfr.Part #:

UCC28730QDRQ1
Datasheet:

UCC28730QDRQ1 Datasheet (PDF)
Control Mode:

Primary-side regulation
UVLO Thresholds On/off (V):

21/7
Switching Frequency (max) (kHz):

83
Features:

Automotive qualified, Current limiting, DCM, Green mode, High voltage startup, High-voltage startup, Input line monitor, Leading edge blanking, Light load efficiency, Light-load efficiency, Low power, Overcurrent protection, Overtemperature protection, PSR, Primary-side regulated, Soft start, Thermal shutdown, Valley switching
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UCC28730QDRQ1 General Description

The UCC28730-Q1 isolated-flyback power supply controller is a cutting-edge device that offers constant-voltage and constant-current output regulation without the need for an optical coupler. With a minimum switching frequency of 30 Hz, this controller boasts ultra-low no-load power consumption of less than 5 mW, making it a highly energy-efficient solution for power supply applications. By leveraging information from the primary power switch and an auxiliary flyback winding, the UCC28730-Q1 ensures precise control over output voltage and current, resulting in stable and reliable performance

Key Features

AEC-Q100 Qualified for Automotive Applications:
- Device Temperature Grade 1: –40⁰C to +125⁰C
- Device HBM Classification Level 2: ±2 kV
- Device CDM Classification Level C4B: ±750 V
Functional Safety-Capable
- Documentation available to aid functional safety system design
Enables Zero-Power (< 5 mW) Standby Consumption
Primary-Side Regulation (PSR) Eliminates Opto-coupler
±5% Voltage Regulation and Current Regulation Across Line and Load
700-V Start-up Switch with 30-V Minimum Start-up Voltage
83-kHz Maximum Switching Frequency Enables Low Stand-by Power Charger Designs
Resonant-Ring Valley-Switching Operation for Highest Overall Efficiency
Frequency-Dither to Ease EMI Compliance
Clamped Gate-Drive Output for MOSFET
Over-Voltage, Low-Line, and Over-Current Protection Functions
Programmable Cable Compensation
SOIC-7 Package

Specifications

Control mode	Primary-side regulation	UVLO thresholds on/off (V)	21/7
Switching frequency (max) (kHz)	83	Features	Automotive qualified, Current limiting, DCM, Green mode, High voltage startup, High-voltage startup, Input line monitor, Leading edge blanking, Light load efficiency, Light-load efficiency, Low power, Overcurrent protection, Overtemperature protection, PSR, Primary-side regulated, Soft start, Thermal shutdown, Valley switching
Operating temperature range (°C)	-40 to 125	Rating	Automotive
TI functional safety category	Functional Safety-Capable	Device type	Controllers
Topology	Buck, Flyback

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Ratings and Reviews

A**r 08/21/2023

Good product, good sale. Seller took 6 days to hand over for shipping so not very quick. Item has not been tested yet.

J**n 02/17/2023

The shipping was fast. All goods were in the package. I don't see the functionality yet, but i'm sure everything works fine. Thank you!Fast shipping. All the goods are in place. Efficiency has not yet checked, but i am sure that everything is in working order. Thank you!

I**h 12/24/2022

Waited two and a half weeks, and the order came. The give 5 star.

E**n 04/20/2022

True for a very short time, the goods are not tracked!