ICL7673CBA Intersil, ICL7673CBA Datasheet

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ICL7673CBA

Manufacturer Part Number
ICL7673CBA
Description
IC SWITCH BATTERY BACKUP 8-SOIC
Manufacturer
Intersil
Datasheet

Specifications of ICL7673CBA

Applications
Battery Backup, Industrial/Automotive, High Current Switch
Fet Type
N and P-Channel
Number Of Outputs
1
Internal Switch(s)
Yes
Voltage - Supply
2.5 V ~ 15 V
Current - Supply
1.5µA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Delay Time - On
-
Delay Time - Off
-

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Quantity
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Automatic Battery Back-Up Switch
The Intersil ICL7673 is a monolithic CMOS battery backup
circuit that offers unique performance advantages over
conventional means of switching to a backup supply. The
ICL7673 is intended as a low-cost solution for the switching
of systems between two power supplies; main and battery
backup. The main application is keep-alive-battery power
switching for use in volatile CMOS RAM memory systems
and real time clocks. In many applications this circuit will
represent a low insertion voltage loss between the supplies
and load. This circuit features low current consumption, wide
operating voltage range, and exceptionally low leakage
between inputs. Logic outputs are provided that can be used
to indicate which supply is connected and can also be used
to increase the power switching capability of the circuit by
driving external PNP transistors.
Ordering Information
Pinouts
ICL7673CPA
ICL7673CPAZ
(See Note)
ICL7673CBA
ICL7673CBA-T
ICL7673CBAZA
(See Note)
ICL7673CBAZA-T
(See Note)
*Pb-free PDIPs can be used for through hole wave solder
processing only. They are not intended for use in Reflow solder
processing applications.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
NUMBER
PART
S
GDN
BAR
V
V
O
S
8 Ld SOIC (N) Tape and Reel
TEMP. RANGE
ICL7673 (SOIC, PDIP)
1
2
3
4
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
(°C)
TOP VIEW
®
1
8 Ld PDIP
8 Ld PDIP*
(Pb-free)
8 Ld SOIC (N)
8 Ld SOIC (N)
(Pb-free)
8 Ld SOIC (N)
(Pb-free)
Data Sheet
PACKAGE
8
7
6
5
V
NC
P
NC
P
BAR
E8.3
E8.3
M8.15
M8.15
M8.15
M8.15
DWG. #
PKG.
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Automatically Connects Output to the Greater of Either
• If Main Power to External Equipment is Lost, Circuit Will
• Reconnects Main Power When Restored
• Logic Indicator Signaling Status of Main Power
• Low Impedance Connection Switches
• Low Internal Power Consumption
• Wide Supply Range: . . . . . . . . . . . . . . . . . . . 2.5V to 15V
• Low Leakage Between Inputs
• External Transistors May Be Added if Very Large
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• On Board Battery Backup for Real-Time Clocks,
• Over/Under Voltage Detector
• Peak Voltage Detector
• Other Uses:
Functional Block Diagram
GND
V
V
Input Supply Voltage
Automatically Connect Battery Backup
Currents Need to Be Switched
Timers, or Volatile RAMs
- Portable Instruments, Portable Telephones, Line
P
S
Operated Equipment
All other trademarks mentioned are the property of their respective owners.
July 22, 2005
V
V
+
-
|
P
S
Intersil (and design) is a registered trademark of Intersil Americas Inc.
> V
> V
Copyright © Intersil Americas Inc. 1999-2005. All Rights Reserved
S
P
, P1 SWITCH ON AND P
, P2 SWITCH ON AND S
P1
BAR
BAR
P2
SWITCH ON
SWITCH ON
ICL7673
FN3183.4
V
S
P
O
BAR
BAR

Related parts for ICL7673CBA

ICL7673CBA Summary of contents

Page 1

... Ld SOIC (N) ICL7673CBA SOIC (N) Tape and Reel ICL7673CBAZA SOIC (N) (See Note) (Pb-free) ICL7673CBAZA SOIC (N) (See Note) (Pb-free) *Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets ...

Page 2

Absolute Maximum Ratings Input Supply ( Voltage . . . . . . . . . . . . GND - 0.3V to +18V P S Output Voltages P and ...

Page 3

Electrical Specifications T = 25°C Unless Otherwise Specified (Continued) A PARAMETER Output Leakage Currents of P and BAR S BAR Switchover Uncertainty for Complete Switching of Inputs and Open Drain Outputs NOTE: 3. The Minimum input to output voltage can ...

Page 4

I = 10mA LOAD 100mA 10nA 1nA 1000pA 10pA 1pA INPUT V P FIGURE 5. I LEAKAGE CURRENT V S FUNCTION OF INPUT VOLTAGE Detailed Description As shown in the ...

Page 5

Applications for the ICL7673 include volatile semiconductor memory storage systems, real-time clocks, timers, alarm systems, and over/under the voltage detectors. Other systems requiring DC power when the master AC line supply fails can also use the ICL7673 +5V ...

Page 6

V P MAIN 8 SUPPLY ICL7673 GND + - 3V BACKUP SUPPLY FIGURE 11. HIGH CURRENT BATTERY BACKUP SYSTEM R S MAIN SUPPLY + BATTERY BACKUP - GND FIGURE 12. LOW CURRENT BATTERY BACKUP SYSTEM WITH HYSTERESIS ...

Page 7

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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