Specification	UCC35702D

Clock Sync	True
Control Features	Frequency Control, Current Limit, Sequencing, Soft Start
Duty Cycle (Max) [Max]	99 %
Frequency - Switching	100 kHz
Function	Step-Up, Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	14-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Synchronous Rectifier	False
Topology	Flyback, Boost, Forward Converter
Voltage - Supply (Vcc/Vdd) [Max]	15 V
Voltage - Supply (Vcc/Vdd) [Min]	8.8 V

UCC35702 Series

Part	Package / Case [x]	Package / Case [y]	Package / Case	Output Configuration	Number of Outputs	Operating Temperature [Max]	Duty Cycle (Max) [Max]	Output Phases	Output Type	Control Features	Function	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Frequency - Switching	Topology	Mounting Type	Package / Case [custom]	Package / Case [custom]	Supplier Device Package
Texas Instruments UCC35702D	0.154 in	3.9 mm	14-SOIC	Isolation Capable Positive	1	70 °C	99 %	1	Transistor Driver	Current Limit Frequency Control Sequencing Soft Start	Step-Up Step-Up/Step-Down	8.8 V	15 V	100 kHz	Boost Flyback Forward Converter	Surface Mount
Texas Instruments UCC35702PWTR			14-TSSOP	Isolation Capable Positive	1	70 °C	99 %	1	Transistor Driver	Current Limit Frequency Control Sequencing Soft Start	Step-Up Step-Up/Step-Down	8.8 V	15 V	100 kHz	Boost Flyback Forward Converter	Surface Mount	0.173 "	4.4 mm	14-TSSOP
Texas Instruments UCC35702DTRG4	0.154 in	3.9 mm	14-SOIC	Isolation Capable Positive	1	70 °C	99 %	1	Transistor Driver	Current Limit Frequency Control Sequencing Soft Start	Step-Up Step-Up/Step-Down	8.8 V	15 V	100 kHz	Boost Flyback Forward Converter	Surface Mount

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 7.95
		10	$ 7.18
		50	$ 6.85
		100	$ 5.95
		250	$ 5.68
		500	$ 5.18
		1000	$ 4.51
Texas Instruments	TUBE	1	$ 7.00
		100	$ 5.71
		250	$ 4.49
		1000	$ 3.80

Description

General part information

UCC35702 Series

The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control. They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.

The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.

Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range. An accurate volt-second clamp and maximum duty cycle limit are also featured.

Documents

Technical documentation and resources

Advanced Voltage Mode Pulse Width Modulator datasheet (Rev. C)

Data sheet