UC3845 Current-Mode PWM Controller IC
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | UC3845 Current-Mode PWM Controller IC DIP-8 | 12 EGP | View in store |
 UGE | UC3845 | 45 EGP | View in store |
Price history
Lowest daily price, last 90 days
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Lowest price recorded: 12 EGP
About this product
The UC3845 is a fixed-frequency current-mode PWM controller from the UC1842/3/4/5 family, used to build off-line and DC-DC switching power supplies with few external parts. It includes under-voltage lockout, a precision 5 V reference, a current-limit comparator and a totem-pole output for driving N-channel MOSFETs.
Specifications
- Control mode
- Current-mode PWM
- Device family
- UC1842/3/4/5
- Reference voltage
- 5 V (trimmed)
- Output stage
- Totem-pole, drives N-channel MOSFET
- Under-voltage lockout (UVLO)
- 8.4 V on / 7.6 V off
- Maximum duty cycle
- 50%
Frequently asked questions
What is the price of UC3845 Current-Mode PWM Controller IC in Egypt?
UC3845 Current-Mode PWM Controller IC currently costs between 12 and 45 EGP across 2 offers in Egypt.
Where can I buy UC3845 Current-Mode PWM Controller IC in Egypt?
UC3845 Current-Mode PWM Controller IC is available from Makers Electronics and UGE. Compare the offers above to find the best price.
What supply voltage does it need?
It starts only when the supply rises above its UVLO turn-on threshold (about 8.4 V for UC3845). Do not exceed the absolute maximum supply voltage listed in the datasheet.
Can it switch the load directly?
No. Its output drives an external N-channel MOSFET, which handles the switching current. A current-sense resistor feeds the current-sense pin for peak current limiting.
