UC3842AD8G4

current mode PWM controller, 8SOIC, 0.5mA, 1.2V, 500kHz, 1W, 5μJ

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Price:: US $1.10~3.00 / piece [Get Latest Price]

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PartNumber:: UC3842AD8G4

Brand:: Texas Instruments - TI | Pack: SOIC | D/C: 11+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-03-24

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Part Number:UC3842AD8G4
US $1.10 - 3.00
2DI75D-050A

US $16.00 - 30.00 / Piece
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SLA4060

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Product Summary

The UC3842AD8G4 is a current mode PWM controller. Providing the necessary features to control current mode switched mode power supplies, the UC3842AD8G4 has the following improved features. Start up current is guaranteed to be less than 0.5mA. Oscillator discharge of the UC3842AD8G4 is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.

Parametrics

UC3842AD8G4 absolute maximum ratings: (1)Supply Voltage (Low Impedance Source): 30V; (2)Output Current: ±1A; (3)Output Energy (Capacitive Load): 5μJ; (4)Analog Inputs (Pins 2, 3): -0.3V to +6.3V; (5)Error Amp Output Sink Current: 10mA; (6)Power Dissipation at TA ≤ 25℃ (DIL-8): 1W; (7)Storage Temperature Range: -65℃ to +150℃; (8)Lead Temperature (Soldering, 10 Seconds): 300℃.

Features

UC3842AD8G4 features: (1)Optimized for Off-line and DC to DC Converters; (2)Low Start Up Current (<0.5mA); (3)Trimmed Oscillator Discharge Current; (4)Automatic Feed Forward Compensation; (5)Pulse-by-Pulse Current Limiting; (6)Enhanced Load Response Characteristics; (7)Under-Voltage Lockout With Hysteresis; (8)Double Pulse Suppression; (9)High Current Totem Pole Output; (10)Internally Trimmed Bandgap Reference; (11)500kHz Operation; (12)Low RO Error Amp.