Compact primary-side regulation PWM controller with automotive grade
Product details
Parameters
Package | Pins | Size
Features
- Qualified for Automotive Applications
- AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
- 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
- < 30-mW Standby Power Consumption
- Primary-Side Regulation (PSR) Eliminates Opto-Coupler
- ±5% Voltage and Current Regulation
- 130-kHz Maximum Switching Frequency
- Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency
- Patent-Pending Frequency-Jitter Scheme to Ease EMI Compliance
- Wide VDD Range Allows Small Bias Capacitor
- Clamped Gate-Drive Output for MOSFET
- Protection Functions: Overvoltage, Low-Line, and Overcurrent
- Programmable Cable Compensation
- SOT23-6 Package
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Description
The UCC28700-Q1 of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.
Control algorithms in the UCC28700-Q1 allows operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous Conduction Mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.
The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700-Q1 allows the level of cable compensation to be programmed.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | UCC28700-Q1 Constant-Voltage, Constant-Current Controller With Primary-Side Regulation datasheet (Rev. A) | Dec. 08, 2020 |
Application note | UCC28700-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | Aug. 18, 2020 | |
Application note | Increase Traction Inverter System Robustness With a HV to LV Backup Supply (Rev. B) | Oct. 09, 2019 | |
Application note | Minimize Standby Consumption for UCC287XX Family | Aug. 01, 2019 | |
Selection guide | Power Management Guide 2018 (Rev. R) | Jun. 25, 2018 | |
Technical article | Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to win | Dec. 27, 2017 | |
Application note | Troubleshooting TI PSR controllers | Oct. 03, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- <30mW no load power for 5 star rating
- Primary Side Regulation (PSR) eliminates opto-coupler
- +/- 5% Voltage & Current Regulation
- 130 KHz max. switching frequency enables high power density charger designs
- Quasi-resonant valley switching operation for highest overall efficiency
- Wide VDD range (35V) allows (...)
Design tools & simulation
Reference designs
Design files
-
download TIDA-01604 Assembly Drawing.pdf (335KB) -
download TIDA-01604 PCB.pdf (2654KB) -
download TIDA-01604 Gerber.zip (890KB) -
download TIDA-01604 BOM (Rev. A).pdf (73KB) -
download TIDA-01604 Altium (Rev. A).zip (2820KB)
Design files
-
download PMP20583 BOM.pdf (29KB) -
download PMP20583 Assembly Drawing.pdf (72KB) -
download PMP20583 PCB.pdf (328KB) -
download PMP20583 CAD Files.zip (344KB) -
download PMP20583 Gerber.zip (219KB)
Design files
-
download PMP10739 BOM.pdf (117KB) -
download PMP10739 Assembly Drawing.pdf (51KB) -
download PMP10739 PCB.pdf (206KB) -
download PMP10739 CAD Files.zip (376KB) -
download PMP10739 Gerber.zip (195KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23 (DBV) | 6 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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