Description
The UC3842AD is a current-mode pulse-width modulation (PWM) controller designed for switch-mode power supply (SMPS) applications such as boost, buck, fly back, forward, and other DC-DC converter topologies. It integrates key control and protection functions on-chip to simplify power-supply design and improve performance. Typical uses include off-line power supplies, isolated and non-isolated DC-DC converters, battery chargers, and LED drivers.
FEATURES
- Supply Voltage Range: ~10 V to ~30 V
- Switching Frequency: Up to 500 kHz
- Maximum Duty Cycle: ~96 – 100 %
- Operating Temperature: ~0 °C to +70 °C
- Output Drive Current: Up to ~1 A
- Output Phases: 1
- Control Features: Frequency control, pulse-by-pulse current limiting
- Protection Features: UVLO, current limiting, suppression
- Mounting Style: Surface Mount
SPECIFICATION
- Dimension: 4.9 × 3.9 × 1.75 mm
- Additional information
- Gross weight: 0.25 g
- Manufacturer part number: UC3842AD
