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

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Description

The MC34025 series are high speed, fixed frequency, double−ended pulse width modulator controllers optimized for high frequency operation. They are specificallydesigned for Off−Line and DC−to−DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current sensing comparator, steering flip−flop, and dual high current totem pole outputs ideally suited for driving power MOSFETs. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, and a latch for single pulse metering. The flexibility of this series allows it to be easily configured for either current mode or voltage mode control.
Features
•50 ns Propagation Delay to Outputs
•Dual High Current Totem Pole Outputs
•Wide Bandwidth Error Amplifier
•Fully−Latched Logic with Double Pulse Suppression
•Latching PWM for Cycle−By−Cycle Current Limiting
•Soft−Start Control with Latched Overcurrent Reset
•Input Undervoltage Lockout with Hysteresis
•Low Startup Current (500 A Typ)
•Internally Trimmed Reference with Undervoltage Lockout
•45% Maximum Duty Cycle (Externally Adjustable)
•Precision Trimmed Oscillator
•Voltage or Current Mode Operation to 1.0 MHz
•Functionally Similar to the UC3825
•Pb−Free Packages are Available

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MC34025PG Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Through Hole
Number of Pins	16 Pin
Case/Package	DIP-16
Frequency	400 kHz
Supply Voltage (DC)	10.0V (min)
Operating Voltage	8.4V ~ 30V
Power Rating	1.25 W
Number of Outputs	2 Output
Input Voltage (DC)	30.0 V
Output Voltage	13.5 V
Output Current	200 mA
Supply Current	25 mA
Number of Channels	2 Channel
Number of Positions	16 Position
Power Dissipation	1.25 W
Rise Time	30 ns
Switching Frequency	1000 kHz
Duty Cycle	45 %
Maximum Duty Cycle	45 %
Fall Time	30 ns
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Power Dissipation (Max)	1250 mW
Supply Voltage (Max)	30 V
Supply Voltage (Min)	10 V
	Show
Size-Length	19.55 mm
Size-Width	6.85 mm
Size-Height	3.43 mm
Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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