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UC3845AN Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube
Product Dimensions and Weight
Description
UC3845AN Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube
The UC3845AN is a high performance current mode PWM controller designed for off-line and DC-to-DC converter applications. It is capable of controlling both single-ended and push-pull topologies. It features a wide range of operating frequencies, low start-up current, and low operating current. It also has a wide operating temperature range and is designed to withstand harsh environmental conditions. Features: High performance current mode PWM controller Wide range of operating frequencies Low start-up current Low operating current Wide operating temperature range Designed to withstand harsh environmental conditions Applications: Off-line and DC-to-DC converter applications Switching power supplies Motor control applications Battery chargers Uninterruptible power supplies (UPS) Lighting applications Automotive applications
Specifications
| Type | Current Mode PWM Controller |
| Control Method | Current |
| Topology | Boost|Buck|Flyback|Forward |
| Number of PWM Outputs | 1 |
| Oscillator Accuracy (kHz) | 52 |
| Switching Frequency (kHz) | 500 |
| Maximum Duty Cycle (%) | 50 |
| Output Current (mA) | 1000(Max) |
| Rise Time (ns) | 50 |
| Fall Time (ns) | 50 |
| Output Voltage (V) | -0.1 to 11 |
| Operating Supply Voltage (V) | 11 |
| Typical Operating Supply Voltage (V) | 11 |
| Maximum Operating Supply Voltage (V) | 30 |
| Maximum Supply Current (mA) | 25 |
| Maximum Power Dissipation (mW) | 1000 |
| Adjustable Output | No |
| On/Off Pin | No |
| Synchronous Pin | No |
| UVLO Turn-Off Threshold (V) | 7.6 |
| UVLO Turn-On Threshold (V) | 8.4 |
| Minimum Operating Temperature (°C) | 0 |
| Maximum Operating Temperature (°C) | 70 |
