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Updated at 01/11/2025 10:30:15(UTC+8)

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Description

DESCRIPTION
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 start ing, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.
FEATURES
700kHz Operation
Integrated Oscillator/ Voltage Feed Forward Compensation
Accurate Duty Cycle Limit
Accurate Volt-second Clamp
Optocoupler Interface
Fault Counting Shutdown
Fault Latch off or Automatic Shutdown
Soft Stop Optimized for Synchronous Rectification
1A Peak Gate Drive Output
130A Start-up Current
750A Operating Current

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UCC25701N Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Through Hole
Number of Pins	14 Pin
Case/Package	DIP-14
Frequency	700 kHz
Supply Voltage (DC)	4.00V (max)
Number of Outputs	1 Output
Input Voltage (DC)	4.00 V
Output Voltage	400 mV
Output Current	180 mA
Number of Positions	14 Position
Quiescent Current	750 µA
Number of Regulated Outputs	1 Output
Rise Time	20 ns
Switching Frequency	700 kHz
Topology	Boost, Flyback, Forward
Duty Cycle	99 %
Output Current (Max)	1 A
Maximum Duty Cycle	100 %
Fall Time	20 ns
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	10V ~ 14V
Supply Voltage (Max)	4 V
Input Voltage	4 V
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Size-Length	19.3 mm
Size-Width	6.35 mm
Size-Height	4.57 mm
Operating Temperature	-55℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15

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