UC1843A-DIE Texas instruments

UC1843A-DIE

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UC1843A-DIE

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Описание

The UC1843A-DIE is a pin for pin compatible improved version of the UC1843-DIE. Providing the necessary features to control current-mode switched-mode power supplies.

Rad-Tolerant: 30 kRad (Si) TID⁽¹⁾
Optimized for Offline and DC-to-DC Converters
Low Start-Up Current
Trimmed Oscillator Discharge Current
Automatic Feed Forward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Undervoltage Lockout With Hysteresis
Double-Pulse Suppression
High-Current Totem-Pole Output
Internally Trimmed Bandgap Reference
Low R_O Error Amplifier

⁽¹⁾ Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

Topology	Boost, Flyback, Forward
Control mode	Current
Duty cycle (max) (%)	100
Switching frequency (max) (kHz)	500
Features	Error amplifier, Multi-topology
UVLO thresholds on/off (V)	8.4/7.6
Operating temperature range (°C)	25 to 25
Rating	Space
Gate drive (typ) (A)	1
Vin (max) (V)	25
Radiation, SEL (MeV·cm2/mg)	Bipolar