Datasheet
LM3722, LM3723, LM3724
www.ti.com
SNVS154E –MAY 2001–REVISED MARCH 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)(2)
V
CC
, MR −0.3V to 6.0V
RESET, RESET −0.3V to (V
CC
+ 0.3V)
Input Current, V
CC
Pin 20mA
Output Current, RESET, RESET Pin 20mA
ESD Rating
(3)
2kV
Continuous Power Dissipation (T
A
= +70°C)
SOT-23
(4)
320mW
Operating Temperature Range
Industrial: −40°C to +85°C
Extended: −40°C to +125°C
Maximum Junction Temperature 125°C
Storage Temperature Range −65°C to +160°C
Lead Temperature (soldering, 10sec) +300°C
(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which the
device operates correctly. Operating ratings do not imply guaranteed performance limits. For guaranteed performance limits and
associated test conditions, see the Electrical Characteristics.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) The human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin.
(4) At elevated temperatures, devices must be derated based on package thermal resistance. The device in the SOT-23-5 package must be
derated at 4.5mW/°C at ambient temperatures above 70°C. The device has internal thermal protection.
Electrical Characteristics
Typical values are at T
A
= +25°C. Limits with standard typeface are for T
A
= +25°C, and limits in boldface type apply for the
operating temperature range (−40°C to +85°C) for LM372_IM5X, and (−40°C to +125°C) for LM372_EM5X, unless otherwise
noted.
(1)
Symbol Parameter Conditions Min Typ Max Units
V
CC
V
CC
Range 1.0 5.5 V
LM372 _ -4.63 V
CC
= 5.5V 8 15 µA
Supply Current
I
CC
LM372 _ -3.08 V
CC
= 3.6V 7 10
(I
LOAD
= 0A)
LM372 _ -2.32 V
CC
= 2.5V 6 10
4.54 4.63 4.72
LM372 _ -4.63
4.50 4.75
3.03 3.08 3.14
V
TH
Reset Threshold LM372 _ -3.08 V
3.00 3.15
2.27 2.32 2.37
LM372 _ -2.32
2.25 2.40
V
TH
Reset Threshold Temperature
30 ppm/°C
Tempco Coefficient
t
RD
V
CC
to Reset Delay
(2)
V
CC
= V
TH
to (V
TH
− 100mV) 20 µs
t
RP
Reset Active Timeout Period 100 190 560 ms
t
MR
MR Minimum Pulse Width 10 µs
t
MD
MR to Reset Propagation Delay 2 µs
MR Glitch Immunity
(3)
100 ns
(1) Production testing done at T
A
= +25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical
Quality Control (SQC) methods.
(2) RESET Output for LM3722 and LM3724, RESET output for LM3723.
(3) Glitches of 100 ns or less typically will not generate a reset pulse.
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Product Folder Links: LM3722 LM3723 LM3724