STMicroelectronics UC3843BD1, PWM Controller, 30 V, 500 kHz 8-Pin, SO8

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Subtotal (1 tube of 100 units)*

£28.90

(exc. VAT)

£34.70

(inc. VAT)

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Units
Per unit
Per Tube*
100 - 400£0.289£28.90
500 - 900£0.275£27.50
1000 +£0.263£26.30

*price indicative

RS Stock No.:
151-972
Mfr. Part No.:
UC3843BD1
Brand:
STMicroelectronics
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Brand

STMicroelectronics

Maximum Switching Frequency

500 kHz

Start-up Supply Current

0.5mA

Maximum Sink Current

12mA

Output Voltage

5 V

Maximum Supply Current

17 mA

Number of Outputs

1

Package Type

SO8

Pin Count

8

Maximum Operating Supply Voltage

30 V

COO (Country of Origin):
MA
The STMicroelectronics Controller, it belongs to family of control ICs 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 a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, 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.

High current totem pole output
Undervoltage lockout with hysteresis
Low start-up and operating current

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