SC420 查看數據表（PDF） - Semtech Corporation
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SC420
Semtech Corporation
SC420 Datasheet PDF : 12 Pages
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SC420
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified: TA = 25°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 (1)
VIN ramping down (1)
EN
VIN
Vhys
tpdh
UVLO
tpd
LUVLO
High Level Input Voltage
VIH
Low Level Input Voltage
VIL
CO
High Level Input Voltage
Low Level Input Voltage
Tri-state Level
Thermal Shutdown
CO floating
Over Temperature Trip Point
(1)
Hysteresis (1)
High Side Driver (TG)
TOTP
T
HYST
Peak Output Current (1)
Output Resistance
Rise Time (1)
Fall Time (1)
IPKH
R
SRC_TG
RSINK_TG
trTG
tfTG
I=
100mA
V -V = 5V
BST DRN
VBST-VDRN = 5V
CL = 3nF,VBST - VDRN = 5V
Min Typ Max
4.1 4.3 4.55
100 200 350
2
2
2.0
0.8
2.0
0.8
1.0
1.9
165
10
1.3
3.4
1.1
15
24
15
24
Units
V
mV
µs
µs
V
V
V
V
V
oC
oC
A
Ω
ns
ns
(1) Guaranteed by design
© 2003 Semtech Corp.
3
United States Patent No. 6,441,597
www.semtech.com
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