Low

UC3844D - 

PWM Modalità Corrente, 25V-12V Aliment. 500 kHz, 13.5V/200A out, SOIC-14

TEXAS INSTRUMENTS UC3844D

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Cod. produttore:
UC3844D
Codice Prodotto
2342591
Datasheet tecnico:
(EN)
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Informazioni sui prodotti

:
SOIC
:
200A
:
14Pin
:
70°C
:
25V
:
500kHz
:
12V
:
13.5V
:
25V
:
Pezzo
:
-
:
-
:
0°C
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Panoramica del prodotto

The UC3844D is a current-mode Pulse Width Modulation (PWM) Controller 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. Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. It is ideally suited to off-line applications.
  • Low start-up current
  • Automatic feed forward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load response characteristics
  • Under-voltage lockout with hysteresis
  • Double pulse suppression
  • High current totem pole output
  • Internally trimmed bandgap reference
  • Low RO Error amplifier
  • Green product and no Sb/Br

Applicazioni

Gestione Alimentazione, Industriale

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