Motor DriversCode e4489c806b
UC3843 - PWM Controller IC
• Current-Mode PWM controller • Operating Voltage: 7.0V to 8.2V • Output pin current: 1A • Analog input range: -0.3 to 6.3V • Oscillation Frequency: 52…
- Delivery in 2 to 4 working daysFree in Islamabad & Rawalpindi above Rs 5,000
- Cash on deliveryPay when your parcel arrives
- 7-day checking warrantyDead-on-arrival items replaced
- Packed with careAnti-static & padded packaging
Highlights
- Current-Mode PWM controller
- SMPS (Switch mode Power Supplies) circuits
- DC-DC converter circuits
- Electronics power supply
- Battery drain circuit
- Load machines
Specifications
- Pin Number
- Pin Name
- Operating Voltage
- 7.0V to 8.2V
- Output pin current
- 1A
- Analog input range
- 0.3 to 6.3V
- Oscillation Frequency
- 52 Typically
- Gain
- 3V
- Maximum source current
- 22mA
- Low Output Voltage
- 0.08V
- High Output Voltage
- 13.5V
About this product
UC3843 Pin Configuration
Pin Number
Pin Name
Description
1
COMP (Comparator)
It is an output pin which outputs low impedance 1MHz single based in the difference between he set and current voltage. It is normally connected to the voltage feedback pin of the IC through resistor and capacitor.
2
VFB (Voltage Feedback)
It is an input to the error amplifier that inside the IC. The difference in voltage level is supplied to this pin
3
Current Sense
A shunt resistor is used to monitor the current through the circuit and the voltage across it is provided as a feedback to the current sense pin
4
