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UC3842TD, UC3843, UC3843 ST

Table of contents:
Info of UC3842TD
Info of UC3843
Info of UC3843 ST

UC3842TD, UC3843, UC3843 ST Selling Leads, Datasheet

MFG:ST Package Cooled:UNITRODE D/C:1600

UC3842TD, UC3843, UC3843 ST Datasheet download

Five Points

Part Number: UC3842TD

MFG: ST

Package Cooled: UNITRODE

D/C: 1600

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UC3842TD Parameters

UC3843 Features

Optimized For Off-line And DC To DC Converters
Low Start Up Current (<1mA)
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

UC3842TD General Description

Current-Mode PWM Controller

UC3842TD Features

Optimized For Off-line And DC To DC Converters
Low Start Up Current (<1mA)
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

UC3842TD Typical Application

UC3843 Datasheet

UC3843 Parameters

UC3843 Features

Optimized For Off-line And DC To DC Converters
Low Start Up Current (<1mA)
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

UC3843 General Description

Current-Mode PWM Controller

UC3843 Maximum Ratings

Supply Voltage(LowImpedanceSource)..................30V
Supply Voltage(I_CC <30mA)...................... SelfLimiting
Output Current.................................................... ±1A
Output Energy(CapacitiveLoad) ............................5J
Analog Inputs(Pins2,3).......................... -0.3Vto+6.3V
Error Amp Output Sink Current ..........................10mA
Power Dissipation at T_A25(DIL-8)................... 1W
Power Dissipation at T_A25(SOIC-14).........725mW
StorageTemperatureRange.................-65 to+150
JunctionTemperatureRange ................-55 to+150
LeadTemperature(soldering,10seconds)........... 300

UC3843 Features

Optimized For Off-line And DC To DC Converters
Low Start Up Current (<1mA)
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

UC3843 Typical Application

UC3843 Datasheet

UC3843 Connection Diagram

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