UC2842AD8

UC2842AD8, current mode PWM controller, SOP, 1W, ±1A, 5μJ

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Price:: US $0.85~0.85 / piece [Get Latest Price]

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Qty (lots)	Price/lot
500 ~ 500 :	0.85 / Piece

PartNumber:: UC2842AD8

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

Availability:: Supply Ability: 1/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

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Products Upload time: 2013-01-21

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Part Number:UC2842AD8
US $0.85 - 0.85
Quantity:

piece

Product Summary

The UC2842AD8 is a current mode PWM controller. The UC2842AD8 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 under-voltage lockout featuring start up current less than 1mA, 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.

Parametrics

UC2842AD8 absolute maximum ratings: (1)Supply Voltage (Low Impedance Source): 30V; (2)Supply Voltage (ICC＜30mA): Self Limiting; (3)Output Current: ±1A; (4)Output Energy (Capacitive Load): 5μJ; (5)Analog Inputs: -0.3V to +6.3V; (6)Error Amp Output Sink Current: 10mA; (7)Power Dissipation at TA≤25℃(DIL.8): 1W; (8)Power Dissipation at TA≤25℃ (SOIC-14): 725mW; (9)Storage Temperature Range: -65℃ to +150℃; (10)Junction Temperature Range：-55℃ to +150℃; (11)Lead Temperature (soldering, 10 seconds): 300℃.

Features

UC2842AD8 features: (1)Optimized For Off-line And DC To DC Converters; (2)Low Start Up Current (＜1mA); (3)Automatic Feed Forward Compensation; (4)Pulse-by-pulse Current Limiting; (5)Enhanced Load Response Characteristics; (6)Under-voltage Lockout With Hysteresis; (7)Double Pulse Suppression; (8)High Current Totem Pole Output; (9)Internally Trimmed Bandgap Reference; (10)500khz Operation; (11)Low RO Error Amp.