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LM3722 Fiches technique(PDF) 2 Page - Texas Instruments

No de pièce LM3722
Description  LM3722/LM3723/LM3724 5-Pin Microprocessor Reset Circuits
Download  19 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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LM3722 Fiches technique(HTML) 2 Page - Texas Instruments

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VCC
Reset Comparator
22k
Low Line
Comparator
OPEN for LM3724
CONNECT for
LM3722/LM3723
+
-
Manual Reset
Comparator
Reset Logic and
One-Shot Timer
+
-
1.225V
Reference
MR
RESET/
RESET
GND
VCC
LM3722
LM3723
LM3724
1
2
3
4
5
MR
*(RESET)
RESET
GND
LM3722, LM3723, LM3724
SNVS154E – MAY 2001 – REVISED MARCH 2013
www.ti.com
Connection Diagram
*( ) are for LM3723
Figure 3. SOT-23-5
PIN DESCRIPTIONS
PIN
NAME
FUNCTION
1
GND
Ground reference
2
GND
Ground reference, device substrate, connect to ground.
RESET
Active-low output. RESET remains low while VCC is below the reset threshold voltage, and for 190
LM3722/LM3724
ms after VCC rises above the reset threshold voltage.
3
RESET
Active-high output. RESET remains high while VCC is below the reset threshold, and for 190 ms
LM3723
after VCC rises above the reset threshold.
Active-low input. Reset is asserted whenever this pin is pulled low and remains asserted for 190 ms
4
MR
after the MR pin goes high. May be left open.
5
VCC
Supply Voltage (+5V, +3.3V, or +2.5V, nominal)
Block Diagram
Figure 4. LM3722/LM3723/LM3724 Block Diagram
2
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Copyright © 2001–2013, Texas Instruments Incorporated
Product Folder Links: LM3722 LM3723 LM3724


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