Packaging information
Package | Pins SOIC (D) | 7 |
Operating temperature range (°C) -40 to 125 |
Package qty | Carrier 2,500 | LARGE T&R |
Features for the UCC28730-Q1
- 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
Description for the UCC28730-Q1
The UCC28730-Q1 isolated-flyback power supply controller provides constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. A minimum switching frequency of 30 Hz achieves less than 5 mW of no-load power.
This device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.
An internal 700-V start-up switch, dynamically- controlled operating states and a tailored modulation profile support ultra-low stand-by power without sacrificing start-up time or output transient response. Control algorithms in the UCC28730-Q1 allow operating efficiencies to meet or exceed applicable standards. Discontinuous conduction mode (DCM) operation with valley-switching reduces switching losses. Modulation of the switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.