SC1437 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
SC1437
Semtech Corporation
'SC1437' PDF : 8 Pages View PDF
POWER MANAGEMENT
Applications Information Continued
VBAT+ 1
VTRIP 1
JP1
JUMPER IN = INTERNAL VTRIP SELECT
JUMPER OUT = ADJUSTABLE VTRIP SELECT
VBAT- 1
R1
576K
NO JUMPER = 80ms DELAY
JP3
0 DELAY
1
2
JP2
R4
40ms DELAY
100
1
2
R2
1M
5
1
6
2
7
3
8
Q1
IRF7805
C2
0.1uF
U2
1 SEL
V+ 5
4 SENSE V- 2
3
OV
SC1437
FIGURE 2
SC1437
1 CHARGER+
R3
100
C1
0.1uF
1 CHARGER-
FIGURE 3: Trip Delay set to 80mS, JP3 & JP2 Open.
FIGURE 4: Trip delay Set to 40mS, JP2 Shorted.
Top Trace: Charger Voltage, 5V/div
Bottom Trace: VTRIP, 5V/div
Timebase: 20ms/div
2000 Semtech Corp.
Top Trace: Charger Voltage, 5V/div
Bottom Trace: VTRIP, 5V/div
Timebase: 20ms/div
6
www.semtech.com
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