SC420A 查看數據表（PDF） - Semtech Corporation
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SC420A
Semtech Corporation
SC420A Datasheet PDF : 16 Pages
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POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified: -40oC < TJ < 125°C; VIN = 5V; 0V < VDRN < 25V
Parameter
Symbol
Under Voltage Lockout
Conditions
Start Threshold (ramping up)
Hysteresis
Under-Voltage Lockout
Time Delay
VIN ramping up (2)
VIN ramping down (2)
EN
VIN
Vhys
tpdhUVLO
tpdLUVLO
High Level Input Voltage
VIH
Low Level Input Voltage
VIL
CO
High Level Input Voltage
Low Level Input Voltage
Thermal Shutdown
Over Temperature Trip Point
(2)
Hysteresis (2)
High Side Driver (TG)
TOTP
THYST
Peak Output Current (3)
Output Resistance(3)
Rise Time (3)
Fall Time (3)
IPKH
RSRC_TG
R
SINK_TG
trTG
tfTG
I=
100mA
VBST-VDRN = 5V
VBST-VDRN = 5V
CL = 3nF,VBST - VDRN = 5V
SC420A
Min Typ Max
Units
4.1
4.3 4.55
V
100 200 350
mV
2
µs
2
µs
2.0
V
0.8
V
2.0
V
0.8
V
165
oC
10
oC
1.5
1.7 1.9
A
1.8
2.2 2.6
Ω
0.6
0.8 1.0
12
16
20
ns
10
14
18
ns
© 2004 Semtech Corp.
3
United States Patent No. 6,441,597
www.semtech.com
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