UC3843BN PWM Controller IC | SMPS Current Mode DIP-8
₹48.00 Original price was: ₹48.00.₹39.00Current price is: ₹39.00.
Key Features
- Current-mode PWM control
- Switching frequency up to 500kHz
- Low startup current (<0.5mA)
- Undervoltage lockout with hysteresis
- Cycle-by-cycle current limiting
- High current totem-pole output
- Trimmed oscillator for precise control
- MPN: UC3843BN
- Brand: ST Microelectronics
Out of stock
UC3843BN PWM Controller IC | SMPS Current Mode DIP-8
UC3843BN is a high-performance current-mode PWM controller IC designed for SMPS, flyback, and boost converters with high efficiency and low startup current.
The UC3843BN from STMicroelectronics is a widely used current-mode PWM controller IC for switch-mode power supplies (SMPS) and DC-DC converter applications.
It supports boost and flyback topologies and offers precise frequency control with a switching capability up to 500kHz, ensuring efficient power conversion.
This IC features low startup current (<0.5mA), undervoltage lockout, and cycle-by-cycle current limiting, making it highly reliable for industrial and consumer electronics.
The DIP-8 package makes it suitable for through-hole designs and prototyping applications.
Key Features
- Current-mode PWM control
- Switching frequency up to 500kHz
- Low startup current (<0.5mA)
- Undervoltage lockout with hysteresis
- Cycle-by-cycle current limiting
- High current totem-pole output
- Trimmed oscillator for precise control
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DIP-8 |
| Supply Voltage | 7.6V – 30V |
| Frequency | Up to 500kHz |
| Topology | Boost, Flyback |
| Duty Cycle | Up to 96% |
| Output | Transistor Driver |
| Temp Range | 0°C to 70°C |
Applications
- SMPS Power Supplies
- DC-DC Converters
- LED Drivers
- Battery Chargers
- Industrial Power Systems
| Weight | 1 g |
|---|
Related products
-
UC2845BD1013TR PWM Controller IC | STMicroelectronics SOIC-8
₹75.00Original price was: ₹75.00.₹42.00Current price is: ₹42.00. -
HX7805CTG 5V Voltage Regulator IC | TO-220 1.5A Linear Regulator
₹35.00Original price was: ₹35.00.₹28.00Current price is: ₹28.00.Read moreTechnical Specifications
- Output Voltage: 5V
- Output Current: 1.5A (max)
- Input Voltage: 7V – 35V
- Package: TO-220
- Type: Linear Positive Voltage Regulator
- Operating Temperature: 0°C to 125°C
-
TLV62585RWTR Synchronous Buck Converter
₹45.00Original price was: ₹45.00.₹30.00Current price is: ₹30.00.Add to cartFeatures:
- 3A continuous output current capability
- Wide input voltage range: 2.5 V to 5.5 V
- Adjustable output voltage from 0.6 V to VIN
- High efficiency up to 95%
- 1.5 MHz fixed switching frequency
- Low quiescent current (35 µA typical)
- 100% duty cycle for lowest dropout
- Power-save mode for light-load efficiency
- Internal soft-start and output discharge function
- Power-good output signal
- Overcurrent and thermal shutdown protection
- Compact VQFN-11-HR (2 × 3 mm) RoHS-compliant package
-
TPS565201DDCR Synchronous Step-Down Converter IC
₹35.00Original price was: ₹35.00.₹25.00Current price is: ₹25.00.Add to cartFeatures:
- Wide 4.5V to 17V input voltage range
- Up to 5A continuous output current
- High efficiency synchronous buck topology
- Fixed 650kHz switching frequency
- Integrated high- and low-side MOSFETs
- Low shutdown current (<2µA)
- Internal soft-start and thermal shutdown
- Compact TSOT-23-6 package
- RoHS compliant






Reviews
There are no reviews yet.