UC1846J - TI

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

Part No

UC1846J
Manufacturer

TI
ChipWorker Part#

CW40608688
Category

PWM Controller IC
Package

CDIP-16
Description

Current Mode PWM Controller 500mA 500kHz 16Pin CDIP Tube
Documentation

Datasheet

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UC1846J Specifications

Attribute	Attribute Value

Part Number	UC1846J
Manufacturer	TI
ChipWorker Part#	CW40608688
Category	PWM Controller IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	16 Pin
Case/Package	CDIP-16
Output Voltage	5.15 V
Output Current	500 mA
Supply Current	21 mA
Power Dissipation	1 W
Number of Regulated Outputs	2 Output
Rise Time	50 ns
Switching Frequency	500 kHz
Topology	Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty Cycle	50 %
Maximum Duty Cycle	50 %
Fall Time	50 ns
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-55 ℃
Power Dissipation (Max)	1000 mW
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Size-Length	21.34 mm
Size-Width	7.62 mm
Size-Height	3.56 mm
Operating Temperature	-55℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	Non-Compliant
Lead-Free Status	Contains Lead
ECCN Code	EAR99

Product Description

DESCRIPTION
The UC1846/7 family of control ICs provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The
superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel “power modules" while maintaining equal current sharing.Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shutdown function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off.Other features include fully latched operation, double pulse suppression, deadline adjust capability, and a±1% trimmed bandgap reference. The UC1846 features low outputs in the OFF state, while the UC1847 features high outputs in the OFF state.
FEATURES
• Automatic Feed Forward Compensation
• Programmable Pulse-by-Pulse Current Limiting
• Automatic Symmetry Correction in Push-p Configuration
• Enhanced Load Response Characteristics
• Parallel Operation Capability for Modular Power Systems
• Differential Current Sense Amplifier with Wide Common Mode Range
• Double Pulse Suppression
• 500mA (Peak) Totem-pole Outputs
• ±1% Bandgap Reference
• Under-voltage Lockout
• Soft Start Capability
• Shutdown Terminal
• 500kHZ Operation

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