SC1437ISK-H42TR Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC1437ISK-H42TR
Semtech Corporation
SC1437ISK-H42TR Datasheet PDF : 8 Pages
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POWER MANAGEMENT
Absolute Maximum Rating
Parameter
V+ Supply Voltage to (V-)
Over Voltage Output to (V-)
Select to (V-)
Sense to (V-)
Thermal Resistance Junction to Ambient
Operating Ambient Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 sec.
ESD Rating (Human Body Model)
SC1437
Symbol
V+
OV
SEL
SENSE
θJA
TA
TJ
TSTG
TLEAD
ESD
Maximum
-0.3 to 30
-0.3 to 8
-0.3 to 7
-0.3 to 7
256
-40 to +85
-40 to +125
-65 to +150
300
2
Units
V
V
V
V
°C/W
°C
°C
°C
°C
kV
Electrical Characteristics
Unless specified, TA = 25 OC, V+ = 1.8V to 6.3V. Values in bold apply over the full operating temperature range.
Parameter
Input Supply Voltage
Input Supply Current
Over Voltage Threshold
with Respect to V-
Symbol
V+
I+
VTRIP
Input Bias Current
IBSEN
IBSEL
OV Threshold Hystersis
hyst
OV Drive Current
Delay
OVDRV
tdelay
Clamp Voltage
Turn Off Time
Turn-Off Time
VCLMP
toff
toffbpt
Test Conditions
Battery input voltage
With internal divider; V+ = 4.7V
SENSE = V-, 4.2V Option
SENSE = V-, 4.5V Option
SENSE = V-, 4.7V Option
External Divider, VSENSE + 2.1V, VSENSE = 1V to 4.2V
Sense Pin
Select Pin
SENSE = V-, 4.2V Option
SENSE = V-, 4.5V Option
SENSE = V-, 4.7V Option
SENSE = resistor divider
B Version
H & L Version; R = 100K, V+ = 4.2V
With SEL = V+
With SEL = V-
With SEL = no connect
Step Voltage = 3V to 15V
Turn off time of external FET with gate cap = 1nF
6.8V Bypass Timer Comparator
MIN
1.8
4.12
4.41
4.61
24
48
T YP
10
4.2
4.5
4.7
2
420
450
470
VTRIP* 0.1
150
42
0
40
80
6.8
50
MAX
6.3
14
4.28
4.59
4.79
1
1
56
112
50
Units
V
µA
V
V
V
%
µA
µA
mV
uA
uA
ms
V
µsec
µsec
2000 Semtech Corp.
2
www.semtech.com
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