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

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Description

**DESCRIPTION**
The UCC3810 is a high-speed BiCMOS controller integrating two synchronized pulse width modulators for use in off-line and dc-to-dc power supplies. The UCC3810 family provides perfect synchronization between two PWMs by usin g the same oscillator. The oscillator’s sawtooth waveform can be used for slope compensation if required. Using a toggle flip-flop to alternate between modulators, the UCC3810 ensures that one PWM does not slave, interfere, or otherwise affect the other PWM. This toggle flip- flop also ensures that each PWM is limited to 50% maximum duty cycle, insuring adequate off-time to reset magnetic elements. This device contains many of the same elements of the UC3842 current mode controller family, combined with the enhancements of the UCC3802. This minimizes power supply parts count. Enhancements include leading edge blanking of the current sense signals, full cycle fault restart, CMOS output drivers, and outputs which remain low even when the supply voltage is removed.
**FEATURES**
•*Single Oscillator Synchronizes Two PWMs**
•*150-µA Startup Supply Current**
•*2-mA Operating Supply Current**
•*Operation to 1 MHz**
•*Internal Soft-Start**
•*Full-Cycle Fault Restart**
•*Internal Leading-Edge Blanking of the Current ****Sense Signal**
•*1-A Totem Pole Outputs**
•*75-ns Typical Response from Current Sense ****to Output**
•*1.5% Tolerance Voltage Reference**

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UCC3810DW Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Frequency	1 MHz
Supply Voltage (DC)	0.00V(min), 10.0V(max)
Number of Outputs	2 Output
Output Voltage	1.2 V
Output Current	20 mA
Supply Current	14.5 mA
Number of Positions	16 Position
Number of Regulated Outputs	2 Output
Rise Time	20 ns
Switching Frequency	1 MHz
Topology	Buck, Boost, Flyback, Forward
Duty Cycle	49 %
Output Current (Max)	1 A
Maximum Duty Cycle	50 %
Fall Time	30 ns
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage	9.5V ~ 10V
Supply Voltage (Max)	10 V
Supply Voltage (Min)	0 V
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Size-Length	10.28 mm
Size-Width	7.52 mm
Size-Height	2.35 mm
Operating Temperature	-40℃ ~ 85℃ (TA)
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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