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CAT808 Schematic ( PDF Datasheet ) - Catalyst Semiconductor

Teilenummer CAT808
Beschreibung Low-Power Precision Voltage Detector
Hersteller Catalyst Semiconductor
Logo Catalyst Semiconductor Logo 




Gesamt 8 Seiten
CAT808 Datasheet, Funktion
Low-Power Precision Voltage Detector
CAT808
FEATURES
„ Ultra Low Current Consumption 2.4µA
„ Accurate Voltage Detection Threshold
„ Fine Voltage Detection Threshold Resolution
„ Active Low Open Drain Output
„ Available in 5-pin TSOT- 23 and 3-pin SOT- 89
RoHS compliant packages
„ Industrial temperature range -40°C to +85°C
APPLICATIONS
„ Battery-Powered Systems
„ Power Supply Monitoring
„ Handheld and Portable Equipment
„ Processor Supervisor Reset
DESCRIPTION
The CAT808 is a high-precision voltage detector
designed for monitoring single cell and multi-cell batteries.
Voltage detection thresholds between 2.0V and 3.2V are
provided with 0.1V resolution and ±3.0% accuracy.
The CAT808 open-drain output is active low until the
VDD voltage exceeds the detection threshold. A low
hysteresis is built into the device to minimize output
“chatter”, while VDD passes through the detection
threshold, and the output transitions high.
After the CAT808 asserts the output high condition, it
continues to monitor VDD until it drops below the
detection threshold, when the output goes low until
VDD once again exceeds the detection threshold.
www.DataSheet4U.com
For Ordering Information details, see page 7.
PIN CONFIGURATION
TYPICAL APPLICATION
SOT-89
OUT 1
VDD 2
GND 3
5-Lead Thin SOT-23
OUT 1
VDD 2
GND 3
5 NC
Battery
Voltage
4 NC
VDD
CAT808
OUT
GND
10k
IN
DC-DC
CONVERTER
SHDN OUT
GND
Note: The value of the pull-up resistor is not critical
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 3024 Rev. A






CAT808 Datasheet, Funktion
CAT808
3-LEAD SOT-89 PACKAGE
D
D1
e
e1
E
H
L
A
A1
bb
b1
C
Notes:
(1) All dimensions are in millimeters.
(2) Lead frame material: copper.
SYMBOL
A
A1
L
b
b1
C
D
D1
H
E
e1
e
MIN
1.40
0.30
0.80
0.36
0.41
0.38
4.40
1.40
3.94
2.40
2.90
1.45
NOM
1.50
0.40
0.42
0.47
0.40
4.50
1.60
2.50
3.00
1.50
MAX
1.60
0.50
1.20
0.48
0.53
0.43
4.60
1.75
4.25
2.60
3.10
1.55
Doc. No. 3024 Rev. A
6 © 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice

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