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LTC4212CMS Datasheet(PDF) 17 Page - Linear Technology

Part # LTC4212CMS
Description  Hot Swap Controller with Power-Up Timeout
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4212CMS Datasheet(HTML) 17 Page - Linear Technology

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17
LTC4212
4212f
Figure 3. Power Good Time-Out Fault and ECB Reset Sequence
CHECK FOR GATE < 0.2V
ON GOES LOW
CHECK FOR FAULT HIGH
LOGIC RESET
(200
µA GATE PULLDOWN)
FAST COMP ARMED
SLOW COMP & POWER GOOD CIRCUIT ARMED
PGI SAMPLED
CIRCUIT BREAKER RESET
VCC
VCC
ON
VREF
2.34V
VREF
VREF
TIMER
GATE
DC/DC
CONVERTER
OUTPUT
(RST)
DC/DC
CONVERTER
OUTPUT
(PGOOD)
FAULT
PGT
PGI
PGF
4212 F03
12
3
4
5 6
7
8 9
10
11 12
13
14
15
16
17
19
POWER GOOD
TIME-OUT CYCLE
(CPGT)
POWER GOOD TIMEOUT FAULT SEQUENCE
ECB RESET
SEQUENCE
< 200ms
0.95V
0.65V
1ST TIMING
CYCLE (CTIMER)
2ND TIMING
CYCLE (CTIMER)
SOFT-START
ACTIVE
VOUT
VOUT
OPERATIO



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