Parameters |
Technology |
BICMOS |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Frequency |
1MHz |
Base Part Number |
UCC28950 |
Function |
Step-Up/Step-Down |
Number of Outputs |
6 |
Output Voltage |
5V |
Output Type |
Transistor Driver |
Operating Supply Voltage |
12V |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Operating Supply Current |
5mA |
Output Configuration |
Positive |
Output Current |
20mA |
Voltage - Supply (Vcc/Vdd) |
8V~17V |
Control Features |
Dead Time Control, Enable, Frequency Control, Soft Start |
Topology |
Full-Bridge |
Control Mode |
VOLTAGE-MODE |
Frequency - Switching |
50kHz~1MHz |
Control Technique |
PHASE-SHIFT CONTROL |
Rise Time |
9ns |
Synchronous Rectifier |
Yes |
Fall Time (Typ) |
7 ns |
Nominal Input Voltage |
3.6V |
Switcher Configuration |
PHASE-SHIFT |
Max Duty Cycle |
97 % |
Isolation |
Non-Isolated |
Duty Cycle (Max) |
95% |
Output Phases |
1 |
Height |
1.2mm |
Length |
7.8mm |
Width |
4.4mm |
Thickness |
1mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
Factory Lead Time |
1 Week |
Lifecycle Status |
ACTIVE (Last Updated: 4 days ago) |
Mounting Type |
Surface Mount |
Package / Case |
24-TSSOP (0.173, 4.40mm Width) |
Surface Mount |
YES |
Number of Pins |
24 |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e4 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
24 |
ECCN Code |
EAR99 |
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
Additional Feature |
ALSO OPERATES IN CURRENT MODE AND AVERAGE CURRENT MODE AND PWM CONTROL TECHNIQUE ALSO POSSIBLE |
Subcategory |
Switching Regulator or Controllers |
UCC28950PWR Description
UCC28950PWR Full-Bridge Controller enhanced phase-shifted controller builds on Texas Instrument's industry-standard UCx895 family of controllers with phase-shifted features. It includes improvements that provide best-in-class performance in today's high-energy power solutions. The UCC28950 features advanced control of the full-bridge and an active controller for the output synchronous rectifier stage.
UCC28950 Features
Enhanced Wide Range Resonant Zero Voltage Switching Capability
Direct Synchronous Rectifier (SR) Control
150-μA Start-Up Current
VDD Under-voltage Lockout
Wide Temperature Range –40°C to +125°C
UCC28950 Applications
Phase-Shifted Full-Bridge Converters
Datacom, Telecom, and Wireless Base-Station Power
Server, Power Supplies
Industrial Power Systems
High-Density Power Architectures