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ACT4921QI データシート(PDF) 18 Page - Active-Semi, Inc

部品番号 ACT4921QI
部品情報  Power Loss Protection with 6A eFuse
Download  35 Pages
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メーカー  ACTIVE-SEMI [Active-Semi, Inc]
ホームページ  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4921QI データシート(HTML) 18 Page - Active-Semi, Inc

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ACT4921QI
Rev 1.0, 18-Jan-2018
Innovative PowerTM
www.active-semi.com
ActiveSwitcherTM is a trademark of Active-Semi
Copyright © 2018 Active-Semi, Inc.
18
UV/POR
eFuse 
Soft‐Start 
VIN ‐ VOUT < 200mV
 Soft‐start done
Supplement 
Mode
Health Check 
repeats every 
4min
eFuse over 
current
TJ > 155°C
VIN > UVLO
eFuse not in OC
& TJ < 155°C
& 100ms delay
eFuse over current
TJ > 155°C
STR < PG_THR
Or TJ > 135° C
Or LDO UV
Or Storage cap OV
Or Boot cap fail
Normal Mode
Health 
Check
Storage cap < 3.0V
Buck output UV/OV
Buck OC
LDO UV
Compensation pin short to GND
Shutdown 
Mode
EN UV/OV
VIN OV
eFuse OC
VIN ‐ VOUT > 300mV
VINS UV
TJ > 155°C
STR > PG_THR
&TJ < 135° C
& LDO not UV
& Storage cap not OV
& Boot cap not fail
Supplement‐ 
Disable Mode
Figure 3: State Machine Diagram
Table 2: Enabled Functions in Different States
States
eFuse
Boost
Buck
BFET
VREF
UV/POR
Disabled
Disabled
Disabled
Disabled
Disabled
SOFT-START
Enabled
Disabled
Disabled
Disabled
Enabled
NORMAL
Enabled
Enabled
Disabled
Enabled
Enabled
HEALT CHECK
Enabled
Enabled
Disabled
Enabled
Enabled
SUPPLEMENT
Disabled
Disabled
Enabled
Enabled
Enabled
SUPPLEMENT-DISABLE
Enabled
Disabled
Disabled
Enabled
Enabled
SHUTDOWN
Disabled
Disabled
Disabled
Disabled
Disabled


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メーカー部品番号データシート部品情報
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