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Manufacturer Part #
UC3844BD1013TR
UC3844B Series 250 kHz High Performance Current Mode PWM Controller - SOIC-8
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| Mfr. Name: | STMicroelectronics | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:2500 per Cut Tape Package Style:SOIC-8 Mounting Method:Surface Mount | ||||||||||
| Date Code: | 2151 | ||||||||||
STMicroelectronics UC3844BD1013TR - Product Specification
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STMicroelectronics UC3844BD1013TR - Technical Attributes
| Package Style: | SOIC-8 |
| Mounting Method: | Surface Mount |
Features & Applications
The UC3844BD1013TR is a high performance current mode PWM controller.
This device 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 0.5 mA, 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 offstate.
Features:
- Trimmed oscillator for precise fre-quency control
- Oscillator frequency guaranteed at 250khz
- Current mode operation to 500khz
- Automatic feed forward compensation
- Latching pwm for cycle-by-cycle current limiting
- Internally trimmed reference with undervoltage lockout
- High current totem pole output
- Undervoltage lockout with hysteresis
- Low start-up and operating current
Available Packaging
Package Qty:
2500 per Cut Tape
Package Style:
SOIC-8
Mounting Method:
Surface Mount