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ISL21440IUZ-T13 Folha de dados(PDF) 1 Page - Intersil Corporation

Nome de Peças ISL21440IUZ-T13
Descrição Electrónicos  Micropower Voltage Reference with Comparator
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Fabricante Electrônico  INTERSIL [Intersil Corporation]
Página de início  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL21440IUZ-T13 Folha de dados(HTML) 1 Page - Intersil Corporation

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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
Micropower Voltage Reference with Comparator
ISL21440
The ISL21440 is a micropower, FGA™ reference and
comparator on a single chip. Drawing less than 1.8µA
supply current over the full operating temperature range,
the ISL21440 operates from a single 2V to 11V supply
and can also be used with split bipolar supplies.
The ISL21440’s on-board reference provides a 1.182V
±0.5% output. It features programmable hysteresis and
TTL/CMOS compatible outputs that sink and source
current. Low Bias currents permit high value divider
resistors for typical circuit current drains of <2.5µA.
The low supply current makes the ISL21440 ideal for
battery powered devices in battery level or low voltage
monitors circuits.
The ISL21440 is a pin-compatible, performance upgrade
of both the LTC1440, LTC1540, MAX921 and MAX931.
Features
• 1.8µA Supply Current Over Full Temperature Range
• Wide Supply Range. . . . . . . . . . . . . . . 2V to 11V
• Precision 1.182V ±0.5% Voltage Reference
• Comparator with User Programmable Hysteresis
• Temperature Range . . . . . . . . . -40°C to +125°C
• 8 Ld MSOP and 8 Ld TDFN Packages
• Pin Compatible Upgrade to MAX921 and LTC1440
Applications*(see page 13)
• Low Battery Detector
•Low Voltage Reset
• Overvoltage Monitor
• Window Comparator
Typical Application
Reference Voltage vs
Temperature
V+
OUT
IN-
HYST
GND
V-
REF
IN+
ISL21440
-
+
VBAT
Vdd
2.4M
20k
LoBAT-
2.4M
1.8M
LOW BATTERY DETECTOR
1.172
1.174
1.176
1.178
1.180
1.182
1.184
1.186
1.188
1.190
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
V+ = 5V
V+ = 2V
V+ = 3V
March 2, 2010
FN6532.1


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