CS3843A

CS3843A, Off-Line Current Mode PWM Control Circuit, DIP, 30V, ±1A, Cherry Semiconductor Corporation

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Price:: US $0.15~0.15 / piece [Get Latest Price]

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Qty (lots)	Price/lot
10 ~ 100 :	0.15 / Piece

PartNumber:: CS3843A

Brand:: Cherry Semiconductor Corporation - Cherry | Pack: DIP | D/C: 11+

Availability:: Supply Ability: 0/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2013-01-30

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Part Number:CS3843A
US $0.15 - 0.15
Quantity:

piece

Product Summary

The CS3843A is a Off-Line Current Mode PWM Control Circuit with Undervoltage Lockout. The CS3843A provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components. The CS3843A incorporates a new precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency. A precision dutycycle clamp eliminates the need for an external oscillator when a 50% dutycycle is used. The CS3843A provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components. The CS3843A incorporates a new precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency.

Parametrics

CS3843A absolute maximum ratings: (1)Supply Voltage (ICC<30mA): Self Limiting; (2)Supply Voltage (Low Impedance Source): 30V; (3)Output Current: ±1A; (4)Output Energy (Capacitive Load): 5μJ; (5)Analog Inputs (VFB, Sense): -0.3V to 5.5V; (6)Error Amp Output Sink Current: 10mA.

Features

CS3843A features: (1)Optimized for Off-line Control; (2)Internally Trimmed Temperature Compensated Oscillator; (3)Maximum Duty-cycle Clamp; (4)VREF stabilized before Output Stage is Enabled; (5)Low Start-up Current; (6)Pulse-by-pulse Current Limiting; (7)Improved Undervoltage Lockout; (8)Double Pulse Suppression; (9)1% Trimmed Bandgap Reference; (10)High Current Totem Pole Output.