UC2845AD - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UC2845AD
Manufacturer

TI
ChipWorker Part#

CW42078614
Category

Voltage Regulator
Package

SOIC-14
Description

TEXAS INSTRUMENTS UC2845AD PWM Controller Switched-Mode Power Supply , 25V-12V supply, 450kHz, 15V/200mA out, SOIC-14
Documentation

Datasheet

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UC2845AD Specifications

Attribute	Attribute Value

Part Number	UC2845AD
Manufacturer	TI
ChipWorker Part#	CW42078614
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	14 Pin
Case/Package	SOIC-14
Frequency	450 kHz
Supply Voltage (DC)	12.0V (min)
Number of Outputs	1 Output
Input Voltage (DC)	25.0 V
Output Voltage	15 V
Output Current	200 mA
Number of Positions	14 Position
Number of Regulated Outputs	1 Output
Rise Time	50 ns
Switching Frequency	500 kHz
Topology	Boost, Flyback, Forward
Duty Cycle	50 %
Maximum Duty Cycle	50 %
Fall Time	50 ns
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	1000 mW
Supply Voltage	7.6V ~ 30V
Supply Voltage (Max)	25 V
Supply Voltage (Min)	12 V
Input Voltage	25 V
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Size-Length	8.65 mm
Size-Width	3.91 mm
Size-Height	1.58 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

**Description**
The UC1842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
**Features**
Optimized for Off-line and DC to DC Converters
Low Start Up Current (<0.5mA)
Trimmed Oscillator Discharge Current
Automatic Feed Forward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Under-Voltage Lockout With Hysteresis
Double Pulse Suppression
High Current Totem Pole Output
Internally Trimmed Bandgap Reference
500kHz Operation
Low RO Error Amp

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