Integrated Circuits (ICs)

UCC25705P

Obsolete

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8DIP

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DocumentsDatasheet

Integrated Circuits (ICs)

UCC25705P

Obsolete

Texas Instruments

IC REG CTRLR MULT TOPOLOGY 8DIP

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC25705P

Clock Sync	False
Duty Cycle (Max) [Max]	93 %
Frequency - Switching	1 MHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Supplier Device Package	8-PDIP
Synchronous Rectifier	False
Topology	Flyback, Boost, Forward Converter
Voltage - Supply (Vcc/Vdd) [Max]	15 V
Voltage - Supply (Vcc/Vdd) [Min]	8.2 V

UCC25705 Series

15V voltage mode 4MHz PWM controller with 8.8V/8.0V UVLO , -40C to 85C

Part	Mounting Type	Package / Case	Package / Case [y]	Package / Case [x]	Number of Outputs	Topology	Supplier Device Package	Output Configuration	Output Type	Output Phases	Frequency - Switching	Duty Cycle (Max) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Function	Package / Case [custom]	Package / Case	Package / Case
Texas Instruments UCC25705DTR	Surface Mount	8-SOIC	3.9 mm	0.154 in	1	Boost Flyback Forward Converter	8-SOIC	Isolation Capable Positive	Transistor Driver	1	1 MHz	93 %	8.2 V	15 V	85 °C	-40 °C	Step-Up Step-Up/Step-Down
Texas Instruments UCC25705DGKTR	Surface Mount	8-MSOP 8-TSSOP			1	Boost Flyback Forward Converter		Isolation Capable Positive	Transistor Driver	1	1 MHz	93 %	8.2 V	15 V	85 °C	-40 °C	Step-Up Step-Up/Step-Down	0.118 in	3 mm
Texas Instruments UCC25705DGK	Surface Mount	8-MSOP 8-TSSOP			1	Boost Flyback Forward Converter		Isolation Capable Positive	Transistor Driver	1	1 MHz	93 %	8.2 V	15 V	85 °C	-40 °C	Step-Up Step-Up/Step-Down	0.118 in	3 mm
Texas Instruments UCC25705P	Through Hole	8-DIP			1	Boost Flyback Forward Converter	8-PDIP	Isolation Capable Positive	Transistor Driver	1	1 MHz	93 %	8.2 V	15 V	85 °C	-40 °C	Step-Up Step-Up/Step-Down		0.3 in	7.62 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

UCC25705 Series

The UCC35705 and UCC35706 devices are 8-pin voltage mode primary side controllers with fast over-current protection. These devices are used as core high-speed building blocks in high performance isolated and non-isolated power converters.

UCC35705/UCC35706 devices feature a high speed oscillator with integrated feed-forward compensation for improved converter performance. A typical current sense to output delay time of 25 ns provides fast response to overload conditions. The IC also provides an accurate programmable maximum duty cycle clamp for increased protection which can also be disabled for the oscillator to run at maximum possible duty cycle.

Two UVLO options are offered. The UCC35705 with lower turn-on voltage is intended for dc-to-dc converters while the higher turn-on voltage and the wider UVLO range of the UCC35706 is better suited for offline applications.

Documents

Technical documentation and resources