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ONSEMI UC2844BDR2G Current Mode Controller
These high performance fixed frequency current mode controllers are ideal for off-line and DC-DC converter applications, offering a cost-effective solution with minimal external components. They feature a built-in oscillator, temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output suitable for driving power MOSFETs. Integrated protections include undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and programmable deadtimes from 50% to 70%. Available in various packages like 8-pin dual-in-line and surface-mount, they are RoHS compliant and suitable for automotive and industrial applications, providing reliable and efficient power control.
ONSEMI UC2844BDR2G Current Mode Controller Specifications:
- Oscillator Frequency: 250 kHz guaranteed, operating up to 500 kHz
- Output Deadtime: Programmable from 50% to 70%
- Supply Voltage (Voo): Typically 15 V, with UVLO thresholds of 16 V (on) and 10 V (off) for UCX844B
- Protection Features: UVLO, cycle-by-cycle current limiting, latch for pulse metering
- Output Stage: High current totem pole capable of source/sink 1.0 A, rise/fall time approximately 50 ns
- Package Types: 8-pin dual-in-line, SOIC-8, and SOIC-14 with separate power and ground pins
- Thermal Dissipation: Max power Pp 862 mW for SOIC-14, 702 mW for SOIC-8, and 1.25 W for PDIP-8
- Operating Temperature: -25°C to +85°C for UC2844B, UC2845B; -40°C to +105°C for variants; up to +125°C in some models
- Reference Voltage: Typically 4.95 V with load regulation within ±20 mV, line regulation ±20 mV
- Error Amplifier Gain: 90 dB, bandwidth 1.0 MHz, phase margin 57°
- Cycle-by-cycle current limiting: Clamped at 1.0 V sense threshold via Rs resistor
Buy the Buy ON Semiconductor UC2844B Power Controller Part Number UC2844BDR2G Online
Purchase the ON Semiconductor UC2844BDR2G online today to ensure your power management systems are equipped with reliable, high-performance current mode controllers. Designed for off-line and DC-DC converter applications, this device simplifies circuit design with minimal external components. Its integrated oscillator, error amplifier, and protections deliver efficient, stable performance, making it ideal for industrial, automotive, and high-frequency power supplies. Secure your supply chain and benefit from quick delivery, technical support, and high quality by buying online now.
Buy ON Semiconductor UC2844BDR2G now and experience unmatched reliability and performance in power conversion and industrial control applications.
Frequently Asked Questions
Where can I buy ONSEMI UC2844BDR2G?
You can click on the BUY or RFQ button to purchase UC2844BDR2G from an authorized ONSEMI distributor.
How do I troubleshoot issues or seek technical support for part UC2844BDR2G?
You can download the UC2844BDR2G datasheet or visit the ONSEMI website for support.
Who is the manufacturer of UC2844BDR2G?
ONSEMI