Datasheet Texas Instruments UCC25701DTR

Advanced Voltage Mode Pulse Width Modulator 14-SOIC -40 to 85

Datasheets

PDF, 984 Kb, Revision: C, File published: Jun 17, 2005

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Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	No

Control Method	Feedforward,Voltage
Duty Cycle(Max)	99 %
Frequency(Max)	700 kHz
Gate Drive(Typ)	1 A
Operating Temperature Range	-40 to 85 C
Package Group	SOIC
Rating	Catalog
Special Features	Multi-topology,Soft Start,Synchronization Pin
Topology	Boost,Flyback,Forward
UVLO Thresholds On/Off	13/9 V
Vin(Max)	400 V
Vin(Min)	13 V

RoHS

Compliant

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U-150 Applying the UCC3570 Voltage-Mode PWM Controller to Both Off-Line
PDF, 568 Kb, File published: Sep 5, 1999
The UCC3570 families of pulse-width modulators are for application in isolated switching supplies using primary-side control and a voltage-mode feedback loop. BiCMOS processing provides higher switching frequencies at lower quiescent current drain, while including innovations in both performance and protection features. Its versatility is demonstrated with the description of a 50W, wide input-volt
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DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode
PDF, 66 Kb, File published: Sep 5, 1999
This design note explains the differences between voltage-mode and current-mode switching power supply topologies. It includes a circuit diagram for each mode and suggests criteria for choosing which mode to use.

Series: UCC25701 (7)

Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller