| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Frequency | 500 kHz |
| Number of Pins | 8 Pin |
| Case/Package | PDIP-8 |
| Number of Outputs | 1 Output |
| Output Voltage | 5 V |
| Output Current | 200 mA |
| Number of Positions | 8 Position |
| Rise Time | 45 ns |
| Switching Frequency | 500kHz (MAX) |
| Duty Cycle | 100 % |
| Maximum Duty Cycle | 97 % |
| Fall Time | 35 ns |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| Supply Voltage | 7.6V ~ 30V |
| Supply Voltage (Max) | 25 V |
| Supply Voltage (Min) | 12 V |
| Input Voltage | 15 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 10.15 mm |
| Size-Width | 6.35 mm |
| Size-Height | 3.3 mm |
| Operating Temperature | 0℃ ~ 70℃ (TA) |
The KA3842B/KA3843B/KA3844B/KA3845B are fixed frequency current-mode PWM controller. They are specially designed for Off-Line and DC-to-DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totempole output ideally suited for driving a power MOSFET. The KA3842B and KA3844B have UVLO thresholds of 16V (on) and 10V (off) The KA3843B and KA3845B are 8.5V (on) and 7.9V (off) The KA3842B and KA3843B can operate within 100% duty cycle. The KA3844B and KA3845B can operate with 50% duty cycle.
●Features
●---
● |
● Low Start Up Current
● Maximum Duty Clamp
● UVLO With Hysteresis
● Operating Frequency Up To 500KHz
ON Semiconductor
12 Pages / 0.21 MByte
ON Semiconductor
12 Pages / 0.23 MByte
ON Semiconductor
2 Pages / 0.03 MByte
ON Semiconductor
6 Pages / 0.78 MByte
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