LTC1443_12 Datasheet, PDF (14/14 Pages) Linear Technology – Ultralow Power Quad

LTC1443/LTC1444/LTC1445
Typical Application
Single Cell to 5V Supply
R1
1.1M
5%
R2
82.5k
1%
1 CELL
LITHIUM-
ION
R3
BATTERY _1M
1%
R5
51k
5%
R4
2.4M
5%
3
5 _{+ V+A}
2
1/4 LTC1444
4_–
+
R7
51k
6–
5%
B
1
1/4 LTC1444
7 + HYST
14
R6
430Ω
5%
C1
1µF
8
REF
+–
1.2V
LTC1444
REF
V^–
9
L1
10µH
SUMIDA
CD54-100
D1
1N5817
C2
100µF ₆
7
V_IN
SW
4
3
SENSE
1
SHDN
LT1300
3
2, 4
NC ⁵ I_LIM
2
NC SEL
Q1
MMFT2955ETI
+ _C3
PWR GND GND
100µF R9
267k
8
1
1%
R8
732k
1% _{11 +}
C
1/4 LTC1444
10 _–
C2, C3: AUX TPSD107M010R0100 OR
SANYO OS-CON 16SA100M
R10
3.37M
5%
16 13 ₊
D
1/4 LTC1444
12 _–
C4
0.22µF
R11
51k
5%
R12
51k
15 5%
V_CC
NMI
µP
RESET
144345 TA03
Related Parts
PART NUMBER
LTC1041
LTC1042
LTC1440/LTC1540
LTC1441/LTC1442
LTC1541/LTC1542
LTC1842/LTC1843
LTC1921
LTC1998
LT^®6700
DESCRIPTION
Bang-Bang Controller with 1nA Off Current
Micropower, High Accuracy Window Comparator
Ultralow Power Comparator with Reference
Dual Ultralow Power Comparators with Reference
Combined Amplifier, Comparator and Reference
Dual Ultralow Power Comparators with Reference
Dual Independent Monitors for –48V Supply and Fuse
High Accuracy Comparator with 1.2V Reference
Dual Comparators with 400mV Reference
LT6703
Single Comparator with 400mV Reference
COMMENTS
2.8V to 18V, Ideal for Temperature or Motor Control Circuit
Fault Detect, Go/No Go Test, Supply Monitor
1.128V ±1% Reference, ±10mV (Max) Input Offset
1.182V ±1% Reference, 8µs Prop Delay, 5.7µA
1.2V ±0.8 Reference, Amplifier Stable with 1000pF Load
1.182V ±1% Reference, 4µs, 3.5µA, Open-Drain Out
–48V Telecom and Network Backplane Monitor
Adjustable Threshold and Hysteresis, 2.5mA Supply
1.4V to 18V Operation, 18µs Prop Delay,
Available in SOT-23 and 2mm × 3mm DFN Packages
1.4V to 18V Operation, 6.5µA Supply Current,
Available in SOT-23 and 2mm × 2mm DFN Packages
14 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
144345fe
LT 0512 REV E • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 1995