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MIC45404 Datasheet(PDF) 18 Page - Microchip Technology

Part # MIC45404
Description  19V 5A Ultra-Low Profile DC-to-DC Power Module
PDF  32 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC45404 Datasheet(HTML) 18 Page - Microchip Technology

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MIC45404
DS20005478A-page 18
 2015 Microchip Technology Inc.
Figure 4-2 illustrates the Hiccup mode short-circuit pro-
tection logic flow. Note that Hiccup mode short-circuit
protection is active at all times, including the soft start
ramp.
FIGURE 4-2:
Hiccup Mode Short-Circuit Protection Logic.
START
CLEAR
LS OC EVENTS
COUNTER
CLOCK PULSE
(MARKING HS
TURN-OFF,
LS TURN-ON)
IDLE LOOP
IN NORMAL
OPERATION
LS OC EVENT
DETECTED?
EVENT
COUNTER = 0
DECREMENT
EVENT
COUNTER
EVENT COUNTER
FULL?
INCREMENT
EVENT
COUNTER
INITIATE HICCUP
SEQUENCE
STOP SWITCHING
HS AND LS
CYCLE THREE TIMES
INTERNAL SOFT START
CAPACITOR
CLEAR
LS OC EVENTS
COUNTER
INITIATE SOFT START
ENABLE SWITCHING
YES
YES
YES
NO
NO
NO



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