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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The UCC28220D is a BiCMOS interleaved dual-channel Pulse Width Modulation (PWM) Controller used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60 and 90% duty cycle per channel. It has an UVLO turn-on threshold of 10 for use in 12V supplies for systems needing wider UVLO hysteresis and has 8V turn-off thresholds.
Matched internal slope compensation circuits
Peak current mode control with cycle-by-cycle current limit
Current sense discharge transistor for improved noise immunity
Accurate line under and over-voltage sense with programmable hysteresis
Opto-coupler interface
Programmable soft-start
Green product and no Sb/Br

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UCC28220D Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Frequency	2 MHz
Supply Voltage (DC)	8.40V (min)
Number of Outputs	2 Output
Input Voltage (DC)	48.0 V
Output Voltage	3.45 V
Output Current	10 mA
Supply Current	6 mA
Number of Positions	16 Position
Power Dissipation	0.65 W
Quiescent Current	3.00 mA
Number of Regulated Outputs	2 Output
Rise Time	10 ns
Switching Frequency	200kHz ~ 2MHz
Topology	Flyback, Forward
Duty Cycle	77 %
Maximum Duty Cycle	0.75
Fall Time	10 ns
Operating Temperature (Max)	105 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	650 mW
Supply Voltage (Max)	14.5 V
Supply Voltage (Min)	8.4 V
Input Voltage	48 V
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Operating Temperature	-40℃ ~ 105℃ (TA)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99
HK STC License	NLR

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