UC3845BN
Current Mode PWM Controller 1A 8-Pin Mini-PDIP Tube
-
RoHS 10 Compliant -
Tariff Charges
The UC3845BN is a high performance current mode PWM Controller IC. It is provides the necessary features to implement off-line or DC-to-DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise duty cycle control under-voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-channel MOSFETs is low in the off-state.
- Trimmed oscillator for precise frequency control
- Automatic feed forward compensation
- Latching PWM for cycle-by-cycle current limiting
- Internally trimmed reference with under-voltage lockout
- High current totem pole output
- Under-voltage lockout with hysteresis
- Low start-up and operating current
Technical Attributes
Find Similar Parts
| Description | Value | |
|---|---|---|
| No | ||
| 50 % | ||
| 0 % | ||
| 50 ns | ||
| Matte Tin | ||
| 50 % | ||
| Through Hole | ||
| 1 | ||
| 8 | ||
| 1 | ||
| No | ||
| -40 to 150 °C | ||
| 150 °C | ||
| -40 °C | ||
| 8Mini-PDIP | ||
| 8 | ||
| Single Ended Controller | ||
| 10.92 x 6.6 x 3.32 mm | ||
| No | ||
| Mini-DIP | ||
| 25 V | ||
| 6 V | ||
| 500 kHz | ||
| 52 kHz | ||
| Boost, Flyback, Flyback | ||
| 50 ns |
ECCN / UNSPSC / COO
| Description | Value |
|---|---|
| Country of Origin: | RECOVERY FEE |
| ECCN: | EAR99 |
| HTSN: | 8542330001 |
| Schedule B: | 8542330000 |
Factory Lead Time: