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

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Description

The UC3825ADW is a high speed Pulse Width Modulation (PWM) Controller, an improved versions of the standard UC3825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12MHz, while input offset voltage is 2mV. Current limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10mA for accurate dead time control. Frequency accuracy is improved to 6%. Startup supply current, typically 100µA, is ideal for off-line applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the startup current specification. In addition each output is capable of 2A peak currents during transitions. Functional improvements have also been implemented in this family. The UC3825 shutdown comparator is now a high-speed overcurrent comparator with a threshold of 1.2V.
Compatible with voltage-mode or current-mode control methods
50ns Propagation delay to output
High-current dual totem pole outputs (2A peak)
Trimmed oscillator discharge current
Pulse-by-pulse current limiting comparator
Latched overcurrent comparator with full cycle restart
Green product and no Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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UC3825ADW 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)	9.20V (min)
Number of Outputs	2 Output
Input Voltage (DC)	22.0 V
Output Voltage	2 V
Output Current	2 A
Supply Current	36 mA
Number of Positions	16 Position
Number of Regulated Outputs	2 Output
Rise Time	20 ns
Switching Frequency	400kHz ~ 1MHz
Topology	Buck, Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty Cycle	50 %
Maximum Duty Cycle	50 %
Fall Time	20 ns
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage (Max)	22 V
Supply Voltage (Min)	9.2 V
Input Voltage	22 V
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Size-Length	10.28 mm
Size-Width	7.52 mm
Size-Height	2.35 mm
Operating Temperature	0℃ ~ 70℃ (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

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