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