LTC1154
TYPICAL APPLICATIONS
24V to 28V Switch with Bootstrapped Supply
24V TO 28V
+
100μF
100k
5V
μP OR
CONTROL
LOGIC
IN
VS
EN
DS
LTC1154
STATUS†
G
GND
SD
* KEYSTONE RL2006-100-100-30-PT.
MOUNT ON MOSFET OR LOAD HEAT SINK.
IQ(OFF) = 60MA, IQ(ON) = 1mA.
+
18V
10μF
6.2k
1N4148
200k
PTC
THERMISTOR
(100°C)*
MTP15N06E
24V TO 28V
LOAD
LTC1154 • TA07
High Side Relay Driver with Overcurrent
Protection and Status Feedback
12V
+
100μF
2Ω 0.02Ω
5V
μP OR
CONTROL
LOGIC
IN
VS
EN
DS
LTC1154
STATUS†
G
GND
SD
10k
0.01μF 1N4148
MTD3055E
15V
1N4001
TO 12V
LOAD
COIL CURRENT LIMITED TO 350mA.
CONTACT CURRENT LIMITED TO 5A.
LTC1154 • TA08
†A 51k pullup resistor should be connected between Status Output and 5V Logic Supply.
5V
μP OR
CONTROL
LOGIC
“4-Cell-to-5V” Extremely Low Voltage Drop Regulator with
Overcurrent Shutdown, Status Feedback, Ramped Turn-ON
and 8μA Standby Current
4-CELL
BATTERY
PACK
+
100μF
0.036Ω
IN
VS
EN
DS
LTC1154
STATUS†
G
GND
SD
1N4148
100k 100k
0.22μF
200pF
10k 1
8
3
7 LT1431 4
65
IRLR024
5V/2A
+ 470μF
ESR < 0.5Ω
LTC1154 • TA09
1154fb
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