SC1538 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
Manufacturer
SC1538 Datasheet PDF : 4 Pages
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DUAL LINEAR CONTROLLER
SC1538
PRELIMINARY - October 5, 1999
ELECTRICAL CHARACTERISTICS
Unless specified, TA = 25°C. Values in bold apply over full operating temperature range.
Parameter
Symbol
Test Conditions
VIN
Supply Voltage
VIN
Quiescent Current
IQ
Both EN High
One or both EN Low
Undervoltage Lockout
Start Threshold
Enable
Enable Pin Current
UVLO
IEN
Threshold Voltage
Hysteresis
Enable Delay Time(1)
Disable Delay Time(1)
VTH
VHYST
tD(ON)
tD(OFF)
DRV
Output Current
Output Voltage
Rise Time(1)
IDRV
VDRV
tr
Fall Time(1)
tf
Output Voltage Regulation
Output Voltage(1)
VO
Input = Low
VEN rising
EN = Low to High, measured from
EN = VTH to 10% DRV
EN = High to Low, measured from
EN = VTH to 90% DRV
Full On
EN = Low to High, measured from
EN = VTH to 90% DRV
3.0V
≤
V (2)
FET
≤
3.6V,
1mA
≤
IO
≤
1A
Overcurrent Protection
Trip Threshold
VOC
Power-up Output Short
Circuit Immunity
Output Short Circuit Glitch
Immunity
Control Section
Bandwidth
NOTES:
(1) See Application Circuit
(2) Connected to FET drains.
DRV = 9V, THD = 5%, CL = 600pF
MIN TYP MAX Units
11.28 12.00 12.72 V
2
3 mA
4
1.5 2.0 mA
2.5
7
8
9
V
50 100 µA
150
1.6
2.3 V
100 180 300 mV
500
ns
150
ns
5
10
mA
9.0 10.5
V
1.6
ms
550
ns
-1.5% VO +1.5% V
-2.5%
+2.5%
-20% 1.00 +15% V
1
5
60 ms
0.5
4
6 ms
5
MHz
3
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
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