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UTCUC3842A |
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| Part Number | UTCUC3842A |
| Manufacturer | Unisonic Technologies |
| Description | The UTC UC3842A/3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode , controlled switching circuits with a minimal external part count SOP-8 FEATURES ... |
| Features |
*Low external part count. *Low start up current ( Typical 0.12mA ) *Automatic feed forward compensation *Pulse-by-Pulse current limiting *Under-voltage lockout with hysteresis *Double pulse Suppression *High current totem pole output to drive MOSFET directly *Internally trimmed band gap reference *500kHz operation
DIP-8
BLOCK DIAGRAM
7
Vcc
Vref
8
Internal Bias 1/2Vref
5V REF
S/R
5 GND
Vref Good Logic 1/3Vref U.V.L.O CURRENT SENSE COMPARATOR R PWM LATCH S
7
Vcc
VFB COMP
2 1
ERROR AMPLIFIER
1V
6
OUTPUT
CURRENT SENSE 3
RT/CT
4
OSCILLATOR
5 GND
ABSOLUTE MAXIMUM RATINGS(Ta=25°C... |
| Document |
 UTCUC3842A Data Sheet
PDF 114.45KB |
Similar Datasheet
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | UTCUC3843A |
Unisonic Technologies |
CURRENT MODE PWM CONTROL CIRCUITS |
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| 2 | UTCUC723 |
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ADJUSTABLE VOLTAGE REGULATOR |
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| 3 | UTCU584 |
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(UTCU584 - UTCU587) LOW DROPOUT POSITIVE REGULATORS ADJUSTABLE AND FIXED |
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| 4 | UTCU585 |
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(UTCU584 - UTCU587) LOW DROPOUT POSITIVE REGULATORS ADJUSTABLE AND FIXED |
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| 5 | UTCU587 |
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(UTCU584 - UTCU587) LOW DROPOUT POSITIVE REGULATORS ADJUSTABLE AND FIXED |
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| 6 | UTCUA8868 |
UTC |
LINEAR INTEGRATED CIRCUIT |
|
Desde 2024. D4U Semiconductor.
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