S3843P Selling Leads, Price trend, S3843P DataSheet download, circuit diagram from SeekIC.com

Features: • Optimized for off-line and DC to DC converters• Low start up current < 1 mA• Operating range up to 500 KHz• Pulse-by-pulse current limiting• Under Voltage Lock Out with hysteresis• High current totempole output• Short shutdown delay time ; t...

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SeekIC No. : 004482024 Detail

S3843P: Features: • Optimized for off-line and DC to DC converters• Low start up current < 1 mA• Operating range up to 500 KHz• Pulse-by-pulse current limiting• Under Voltag...

S3843P Data Sheet

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Part Number:: S3843P
Supply Ability:: 5000

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Qty
1~5000

Unit Price
Negotiable

Processing time
15 Days

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Upload time: 2024/11/23

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S3842 evaluate
Features: • Optimized for off-line control• Low start up and operating current• ...
S3842P evaluate
Features: • Optimized for off-line control• Low start up and operating current• ...
S3843 evaluate
Features: • Optimized for off-line and DC to DC converters• Low start up current < ...

Product Details

Description

Features:

• Optimized for off-line and DC to DC converters
• Low start up current < 1 mA
• Operating range up to 500 KHz
• Pulse-by-pulse current limiting
• Under Voltage Lock Out with hysteresis
• High current totempole output
• Short shutdown delay time ; typical 100nsec

Specifications

Characteristic	Symbol	Ratings	Unit
Supply voltage	V_CC	30	V
Output Current	I_o	1	A
Analog Inputs	V_i(ana)	-0.3 to 6.3	V
Error Amp. Output Sink current	I_sink(EA)	10	mA
Power Dissipation	P_d	1	W

note) All voltages are with respect to PIN5, and current are positive into the specified pin.

Description

The S3843P is fixed Current PWM controller for Off-line and DC-DC converter applications.

The internal circuits of S3843P feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier current sensing comparator, and a high current totempole output for driving a power MOSFET. Protection circuitly includes built in under voltage lockout and current limiting. S3843 have UVLO threshold of 8.4V(on) and 7.6V(off). S3843P can operate within 100% duty cycle.

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S3843P

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