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Switching Controllers with Current Mode of 0.5mA
PDIP (P)-8Manufacturer:
Mfr.Part #:
UC3843AN
Datasheet:
Topology:
Boost, Buck, Flyback, Forward
Control Mode:
Current
Duty Cycle (max) (%):
100
Switching Frequency (max) (kHz):
500
EDA/CAD Models:
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The UC3843AN, manufactured by Texas Instruments, is a versatile PWM controller IC commonly used in switch-mode power supply applications. It operates in voltage mode control and provides precise regulation of output voltage. The device integrates functions such as a precision voltage reference, error amplifier, PWM comparator, and a high-current totem-pole output stage. Its internal oscillator can be adjusted over a wide frequency range, allowing flexibility in design. The UC3843AN facilitates efficient power conversion by regulating the duty cycle of the output waveform based on feedback from the output voltage. With its wide input voltage range and robust design, it finds applications in various power supply designs, including AC/DC converters, DC/DC converters, and battery chargers. The 'AN' suffix denotes the package type, typically a DIP (Dual Inline Package), making it suitable for through-hole mounting on PCBs
Topology | Boost, Buck, Flyback, Forward | Control mode | Current |
Duty cycle (max) (%) | 100 | Switching frequency (max) (kHz) | 500 |
Features | Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology | UVLO thresholds on/off (V) | 8.4/7.6 |
Operating temperature range (°C) | 0 to 70 | Rating | Catalog |
Gate drive (typ) (A) | 1 | Vin (max) (V) | 28 |
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Qty. | Unit Price | Ext. Price |
---|---|---|
1+ | $1.066 | $1.07 |
10+ | $0.909 | $9.09 |
50+ | $0.712 | $35.60 |
100+ | $0.615 | $61.50 |
500+ | $0.571 | $285.50 |
1000+ | $0.551 | $551.00 |
The prices below are for reference only.
All bill of materials (BOM) can be sent via email to
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