Description
The UC3842AN is a PWM current mode controller from Texas Instruments, designed for industrial applications. It's a fully integrated current-mode PWM circuitry that provides high-reliability pulse-width modulation (PWM) control for DC motors and other loads. The IC features adjustable frequency and soft-start capability, making it suitable for various motor control and power supply applications.
The UC3842AN is commonly used in switch-mode power supplies, LED drivers, battery chargers, and other applications requiring a regulated power supply. It's also used in DC-DC converters, voltage regulators, and motor control circuits for high-efficiency power management solutions.
This IC offers a versatile solution for industrial applications, providing a reliable and efficient way to control DC motors and other loads.
Features
According to the product information, the features of the UC3842AN are:
- High-reliability PWM controller for industrial applications
- Fully integrated current-mode PWM circuitry
- Adjustable frequency and soft-start capability included
- Pulse-width modulation controller with adjustable frequency
- Error amplifier monitors feedback signal closely
- Controller IC for DC motors with high precision, featuring:
- + Soft-start
- + Overcurrent protection
- + Voltage reference ensures stable operation
- High-performance PWM controller for DC motors, with:
- + Internal oscillator ensuring consistent timing
- + Soft-start and under-voltage lockout protecting against damage
Package
According to the product information, the package type of UC3842AN is DIP-8.
Pinout
According to Texas Instruments' documentation, the UC3842AN has a package type of DIP-8, which means it has 8 pins.
Here's a concise summary of the pin functions:
- Pin 1: VCC (Positive Supply Voltage)
- Pin 2: OUT (Output)
- Pin 3: COMP (Error Amplifier Output)
- Pin 4: FB (Feedback Input)
- Pin 5: REF (Voltage Reference)
- Pin 6: CTRL (Control Input)
- Pin 7: GND (Ground)
- Pin 8: OSC (Internal Oscillator)
Please note that this information is based on the provided product description and may not be exhaustive.
Manufacturer
The manufacturer of the UC3842AN is Texas Instruments, a well-known American technology company that specializes in the design and manufacturing of semiconductors, including integrated circuits (ICs), diodes, and other electronic components.
Applications
According to the product information, the UC3842AN is commonly used in:
- Switch-mode power supplies
- LED drivers
- Battery chargers
- DC-DC converters
- Voltage regulators
- Motor control circuits for high-efficiency power management solutions
These applications require a regulated power supply and utilize the IC's PWM Current Mode Controller features.
Equivalent
Based on the description and features provided, some equivalent products to the UC3842AN are:
- STP16WF40 (STMicroelectronics)
- NCP3801 (ON Semiconductor)
- LX3304 (Renesas Electronics)
These products share similar characteristics with the UC3842AN, including current-mode PWM controller functionality, adjustable frequency, and soft-start capabilities.
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