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UPD166019T1F Datenblatt(PDF) 7 Page - Renesas Technology Corp

Teilenummer UPD166019T1F
Bauteilbeschribung  Single P-Channel High-Side Intelligent Power Device
PDF  18 Pages
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Hersteller  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD166019T1F Datenblatt(HTML) 7 Page - Renesas Technology Corp

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PD166019T1F
Preliminary
R07DS0730EJ0100 Rev.1.00
Page 7 of 16
Apr 25, 2012
Short Circuit Protection
Case 1: Turn on in an overloaded condition, which includes a short circuit condition. The device shut down
automatically when IL > IL(SC) condition is detected. Then the VIN value is increased by the output of IOL current.
Shutdown is latched until the next reset via IN input.
Short circuit detection
Depending on the external impedance
IOL output
(= IOL × RIN)
Case 1 IL > IL(SC)
VBAT
VCC
IL(SC)
VOUT
VON
VIN
0
0
IL
VOUT/VCC
t
(Evaluation circuit)
: Cable impedance
IL(SC): Short circuit detection current
VIN
RIN
VOUT
Von
IOL
IL
VCC
IN
OUT
RL
VBAT
Case 2: Short circuit during On-condition. The device shut down automatically when IL > IL(SC) condition is detected.
Then the VIN value is increased by the output of IOL current. Shutdown is latched until the next reset via IN
input.
IOL output
(= IOL × RIN)
Depending on the external impedance
VCC
IL(SC)
VIN
0
0
IL
VOUT
t
Short circuit detection
Case 2 IL > IL(SC) at On condition
(Evaluation circuit)
: Cable impedance
IL(SC): Short circuit detection current
VIN
RIN
VOUT
Von
IOL
IL
VCC
IN
OUT
RL
VBAT



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