UC3842, a High-performance Current-mode Pulse-width Modulation (PWM) Controller Chip
UC3842 is a High-Performance Current-Mode Pulse-Width Modulation (PWM) Controller Chip. It features single-ended output, capable of directly driving bipolar junction transistors (BJTs) or power transistors. The chip integrates an oscillator, a high-gain error amplifier with high-temperature compensation, a current sensing comparator, a totem-pole output stage, input and reference undervoltage lockout circuits, and a PWM latch circuit.
1. Key Features:
- Low Start-Up Current (<0.5mA)
- Stable Reference Voltage Source
- High-Current Totem-Pole Outputs (Drive Current Up To 1A)
- Operating Frequency Up To 500KHz
- Undervoltage Lockout With Hysteresis
- Maximum Duty Cycle Clamp
2. Pin Definitions And Package Type
Applications And Products
Shenzhen XBL Electronics Co., Ltd. is a professional enterprise specializing in the research, development, and sales of semiconductor devices. XBLW products focus on both consumer and industrial markets. The main products include power management ICs, low-power LDOs, three-terminal regulators, high/medium/low-voltage MOS transistors, motor drivers, RS485/RS232 interfaces, Darlington transistors, and logic circuits.
XBLW products are widely used in various fields such as drones, robots, power supplies, computers, instruments, toys, household appliances, communication equipment, lighting applications, automotive electronics, and industrial automation equipment. XBL is committed to the continuous development of the semiconductor industry, leveraging professional experience in high-tech fields to provide excellent quality products and system solutions for building a harmonious and efficient society, thus achieving win-win cooperation throughout the entire industry chain.
XBLW is the independent brand of XBL Electronics."XBL" brand selects the best chips to create greater value for your products. Choose XBL, create greater value for your products.
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