UC1843-DIE Texas instruments

UC1843-DIE

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UC1843-DIE

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Описание

The UC1843-DIE provides the necessary features to implement off-line or dc-to-dc fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state.

Optimized For Off-line and DC-to-DC Converters
Low Start-Up 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
Low R_O Error Amp

Topology	Boost, Flyback, Forward
Control mode	Current
Duty cycle (max) (%)	100
Switching frequency (max) (kHz)	500
Features	Error amplifier
UVLO thresholds on/off (V)	8.4/7.6
Operating temperature range (°C)	25 to 25
Rating	Military
Gate drive (typ) (A)	1
Vin (max) (V)	30