Datasheet Texas Instruments UCC25701PWG4 — Datenblatt

Erweiterter Spannungsmodus Pulsweitenmodulator 14-TSSOP -40 bis 85

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PDF, 984 Kb, Revision: C, Datei veröffentlicht: Jun 17, 2005

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Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

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	TSSOP
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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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, Datei veröffentlicht: 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.

Serie: UCC25701 (7)

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