LM3724 [TI]
具有手动复位功能的低功耗电压监控器和复位 IC;
| 型号： | LM3724 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 具有手动复位功能的低功耗电压监控器和复位 IC 监控 |
| 文件： | 总20页 (文件大小：674K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM3722, LM3723, LM3724
www.ti.com
SNVS154E –MAY 2001–REVISED MARCH 2013
LM3722/LM3723/LM3724 5-Pin Microprocessor Reset Circuits
Check for Samples: LM3722, LM3723, LM3724
1
FEATURES
DESCRIPTION
The
LM3722/LM3723/LM3724
microprocessor
2
•
Precise Monitoring of 2.5V, 3.3V, and 5V
Supply Voltages
supervisory circuits monitor the power supplies in
microprocessor and digital systems. They provide a
reset to the microprocessor during power-up, power-
down, brown-out conditions, and manual reset.
•
Fully Specified Over Temperature
–
–
Industrial: −40°C to +85°C
Extended: −40°C to +125°C
The LM3722/LM3723/LM3724 asserts a reset signal
whenever the supply decreases below the factory-
programmed reset threshold. Reset will be asserted
for at least 100ms even after VCC rises above the
reset threshold.
•
100 ms Minimum Power-On Reset pulse Width,
190 ms Typical:
–
–
–
Active-Low RESET Output (LM3722)
Active-High RESET Output (LM3723)
The LM3722 has an active-low RESET push-pull
output. The LM3723 has an active-high RESET push-
pull output. The LM3724 has an active-low open-drain
RESET output.
Active-Low RESET Open Drain Output
(LM3724)
•
•
•
•
Guaranteed RESET Output Valid for VCC ≥ 1V
Low Supply Current, 6µA Typical
Three standard reset voltage options are available,
suitable for monitoring 5V, 3.3V, and 2.5V supply
voltages. Additional reset voltages are also available;
contact Texas Instruments for details.
Power Supply Transient Immunity
Compatible with MAX811/812 Applications
APPLICATIONS
With
a low supply current of only 6µA, the
LM3722/LM3723/LM3724 are ideal for use in portable
equipment. The LM3722/LM3723/LM3724 are
available in the 5-pin SOT-23 package.
•
•
•
•
•
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Portable/Battery-Powered Equipment
Typical Application Circuits
V
V
CC
CC
V
V
CC
V
CC
V
CC
CC
R
L
LM3722
LM3723
mP
mP
LM3724
RESET
INPUT
RESET
*(RESET)
RESET
INPUT
MR
MR
RESET
PUSHBUTTON
SWITCH
PUSHBUTTON
SWITCH
GND
GND
GND
GND
Figure 1. Typical Application Circuit
Figure 2. Typical Application Circuit with RL
Connection
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2001–2013, Texas Instruments Incorporated
LM3722, LM3723, LM3724
SNVS154E –MAY 2001–REVISED MARCH 2013
www.ti.com
Connection Diagram
GND
GND
1
2
3
V
CC
5
4
LM3722
LM3723
LM3724
RESET
*(RESET)
MR
*( ) are for LM3723
Figure 3. SOT-23-5
PIN DESCRIPTIONS
PIN
1
NAME
GND
FUNCTION
Ground reference
Ground reference, device substrate, connect to ground.
2
GND
RESET
LM3722/LM3724
Active-low output. RESET remains low while VCC is below the reset threshold voltage, and for 190
ms after VCC rises above the reset threshold voltage.
3
RESET
LM3723
Active-high output. RESET remains high while VCC is below the reset threshold, and for 190 ms
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
after the MR pin goes high. May be left open.
4
5
MR
VCC
Supply Voltage (+5V, +3.3V, or +2.5V, nominal)
Block Diagram
VCC
OPEN for LM3724
Reset Comparator
CONNECT for
LM3722/LM3723
+
-
22k
RESET/
RESET
Reset Logic and
One-Shot Timer
Low Line
Comparator
Manual Reset
Comparator
+
-
MR
1.225V
Reference
Figure 4. LM3722/LM3723/LM3724 Block Diagram
2
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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.
(1)(2)
Absolute Maximum Ratings
VCC, MR
−0.3V to 6.0V
RESET, RESET
−0.3V to (VCC+ 0.3V)
Input Current, VCC Pin
20mA
20mA
2kV
Output Current, RESET, RESET Pin
(3)
ESD Rating
Continuous Power Dissipation (TA = +70°C)
(4)
SOT-23
320mW
Operating Temperature Range
Industrial:
−40°C to +85°C
−40°C to +125°C
125°C
Extended:
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (soldering, 10sec)
−65°C to +160°C
+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 TA = +25°C. Limits with standard typeface are for TA = +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
(1)
noted.
Symbol
Parameter
VCC Range
Conditions
Min
1.0
Typ
Max
5.5
15
Units
V
VCC
LM372 _ -4.63
LM372 _ -3.08
LM372 _ -2.32
VCC = 5.5V
VCC = 3.6V
VCC = 2.5V
8
7
µA
Supply Current
(ILOAD = 0A)
ICC
10
6
10
4.54
4.50
4.63
4.72
4.75
LM372 _ -4.63
LM372 _ -3.08
LM372 _ -2.32
3.03
3.00
3.08
2.32
3.14
3.15
VTH
Reset Threshold
V
2.27
2.25
2.37
2.40
VTH
Reset Threshold Temperature
30
ppm/°C
Tempco Coefficient
(2)
tRD
tRP
tMR
tMD
VCC to Reset Delay
VCC = VTH to (VTH − 100mV)
20
µs
ms
µs
µs
ns
Reset Active Timeout Period
MR Minimum Pulse Width
100
10
190
560
MR to Reset Propagation Delay
2
(3)
MR Glitch Immunity
100
(1) Production testing done at TA = +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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Electrical Characteristics (continued)
Typical values are at TA = +25°C. Limits with standard typeface are for TA = +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
VIH
Parameter
MR Input Threshold
MR Pull-Up Resistance
Conditions
Min
2.3
Typ
Max
Units
VCC > VTH(MAX), LM372_ -4.63
VIL
0.8
V
VIH
0.7 VCC
VCC > VTH(MAX), LM372_ -3.08, LM372_ -2.32
VIL
0.25 VCC
0.3
22
kΩ
VCC = VTH min, ISINK = 1.2mA, (LM3722-
2.32/3.08)
RESET Output Voltage Low
(LM3722)
VOL
V
VCC = VTH min, ISINK = 3.2mA, (LM3722-4.63)
VCC > 1V, ISINK = 50µA
0.4
0.3
VCC > VTH max, ISOURCE = 500µA, (LM3722-
2.32/3.08)
0.8VCC
CC−1.5
RESET Output Voltage High
(LM3722)
VOH
V
V
VCC > VTH max, ISOURCE = 800µA, (LM3722-4.63)
V
VCC = VTH max, ISINK = 1.2mA
(LM3723 -2.32/3.08)
0.3
0.4
RESET Output Voltage Low
(LM3723)
VOL
VCC = VTH max, ISINK = 3.2mA
(LM3723 -4.63)
VOH
VOL
RESET Output Voltage High
(LM3723)
0.8VCC
V
V
1.8V < VCC < VTH min, ISOURCE = 150µA
RESET Output Voltage Low
(LM3724)
VCC = VTH min, ISINK = 1.2 mA
(LM3724 -2.32/3.08)
0.3
0.4
VCC = VTH min, ISINK = 3.2 mA
(LM3724 -4.63)
VCC > 1V, ISINK = 50µA
0.3
0.5
IIN
RESET Output Leakage Current
(LM3724)
µA
VCC > VTH, RESET = 5.5V
4
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SNVS154E –MAY 2001–REVISED MARCH 2013
Typical Performance Characteristics
Supply Current
Supply Current
vs
Temperature
vs
VCC
10
8
9
8
VCC = 5.5V
7
6
6
4
2
0
5
4
3
2
VCC = 3.6V
VCC = 2.5V
1
0
1
2
3
4
6
0
5
-15
10
-40
35
60
85
TEMPERATURE (oC)
VCC (V)
Figure 5.
Figure 6.
Reset Timeout
Reset Timeout
vs
Temperature
vs
VCC
1.05
210
200
1.025
190
180
170
1
0.975
0.95
160
150
-40
-20
20
40
60
0
80
TEMPERATURE (oC)
2
5
3
4
6
VCC (V)
Figure 7.
Figure 8.
Normalized VTH
vs
Temperature
LM3724 VOL
vs
Current
700
600
1.005
1.004
1.003
1.002
1.001
VCC = 2.5V
500
400
VCC = 3.3V
VCC = 5V
1.000
0.999
0.998
0.997
300
200
100
0
0.996
0.995
3.0
0.3
10.0
0.1
1.0
0
20
40
60
80
-40 -20
TEMPERATURE (oC)
SINK CURRENT
Figure 10.
Figure 9.
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Typical Performance Characteristics (continued)
LM3724 Low VCC Characteristics
700
600
500
400
10 kW Pull-Up
Resistor
300
200
100
0
0.5
2.0
0.0
1.0
1.5
VCC (V)
Figure 11.
6
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SNVS154E –MAY 2001–REVISED MARCH 2013
Timing Diagram
Figure 12. Timing Diagram
Circuit Information
RESET OUTPUT
The reset input of a µP initializes the device into a known state. The LM3722/LM3723/LM3724 microprocessor
voltage monitoring circuits assert a forced reset output to prevent code execution errors during power-up, power-
down, and brownout conditions.
RESET is guaranteed valid for VCC ≥ 1V. Once VCC exceeds the reset threshold, an internal timer maintains the
output for the reset timeout period. After this interval, reset goes high and the microprocessor initializes itself into
a known state. The LM3722 and LM3724 offer an active-low RESET; the LM3723 offers an active-high RESET.
As VCC drops below the reset threshold (such as during a brownout), the reset activates (see the NEGATIVE-
GOING VCC TRANSIENTS section). When VCC again rises above the reset threshold, the internal timer starts.
Reset holds until VCC exceeds the reset threshold for longer than the reset timeout period. After this time, reset
releases.
Additionally, the Manual Reset input (MR) will initiate a forced reset. See the MANUAL RESET INPUT (MR)
section.
The LM3722/LM3723/LM3724 reset outputs ignore short duration glitches on VCC and MR. See the Applications
Information section for details.
RESET THRESHOLD
The LM3722/LM3723/LM3724 are available with reset voltages of 4.63V, 3.08V, and 2.32V which are suitable for
monitoring 5.0V, 3.3V, and 2.5V supplies respectively. Other reset thresholds in the 2.20V to 5.0V range, in 10
mV steps, are available; contact Texas Instruments for details.
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MANUAL RESET INPUT (MR)
Many µP-based products require a manual reset capability, allowing the operator to initiate a reset. The MR input
is fully debounced and provides an internal 22 kΩ pull-up. When the MR input is pulled below VIL (0.25VCC) for
more than 100 ns, reset is asserted after a typical delay of 2 µs. Reset remains active as long as MR is held low,
and releases after MR rises above VIH and the reset timeout period expires. Use MR with digital logic to assert
reset or to daisy chain supervisory circuits.
APPLICATIONS INFORMATION
BENEFITS OF PRECISION RESET THRESHOLDS
A microprocessor supply supervisor must provide a reset output within a predictable range of the supply voltage.
A common threshold range is between 5% and 10% below the nominal supply voltage. The 4.63V, 3.08V and
2.32V options of the LM3722/LM3723/LM3724 use highly accurate circuitry to ensure that the reset threshold
occurs only within this range (for 5.0V, 3.3V and 2.5V supplies). Table 1 shows how the standard reset
thresholds apply to 5.0V, 3.3V, and 2.5V nominal supply voltages.
Table 1. Monitored Tolerance Table
Supply Voltage
Reset Threshold
2.5V
3.3V
5.0V
4.63 ± %
3.08 ± %
2.32 ± %
90.8-94.4%
91.8-95.2%
90.8-94.8%
ENSURING A VALID RESET OUTPUT DOWN TO VCC = 0V
When VCC falls below 1V, the LM3722 RESET output is unable to sink the rated current. A high-impedance
CMOS logic input connected to RESET can therefore drift to undetermined voltages. To prevent this situation, a
100kΩ resistor should be connected from the RESET output to ground, as shown in Figure 13.
A 100kΩ pull-up resistor to VCC is also recommended for the LM3723, if RESET is required to remain valid for
VCC < 1V.
Figure 13. Circuit for RESET Valid from VCC = 0V
OPEN DRAIN OUTPUT (LM3724)
An open drain output allows easy paralleling of multiple microprocessor reset circuits without requiring additional
logic gates. Open drain outputs also allow interfacing devices of differing logic levels or families, since the output
pull-up resistor may be connected to any supply voltage up to 5.5V, regardless of LM3724 VCC
.
The pull up resistor is calculated so that maximum current flow into RESET is less than 10 mA when activated.
The resistor must be small enough so that the leakage current of all connected devices does not create an
excessive voltage drop when the output is not activated. A resistor value of 100 kΩ will generally suffice.
8
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NEGATIVE-GOING VCC TRANSIENTS
The LM3722/LM3723/LM3724 are relatively immune to short negative-going transients or glitches on VCC
.
Figure 14 shows the maximum pulse width a negative-going VCC transient can have without causing a reset
pulse. In general, as the magnitude of the transient increases, going further below the threshold, the maximum
allowable pulse width decreases. Typically, a VCC transient that goes 125 mV below the reset threshold and lasts
40 µs or less will not cause a reset pulse. A 0.1 µF bypass capacitor mounted as close as possible to the VCC pin
will provide additional transient rejection.
600
500
400
300
200
100
0
0
20
60
80 100
40
160 180
200
140
120
Max Transient Duration (ms)
Figure 14. Maximum Transient Duration without Causing a Reset Pulse vs. Reset Comparator Overdrive
INTERFACING TO µPS WITH BIDIRECTIONAL RESET PINS
Microprocessors with bidirectional reset pins, such as the Motorola 68HC11 series, can be connected to the
LM3722 RESET output. To ensure a correct output on the LM3722 even when the microprocessor reset pin is in
the opposite state, connect a 4.7kΩ resistor between the LM3722 RESET output and the µP reset pin, as shown
in Figure 15. Buffer the LM3722 RESET output to other system components.
Typical Application Circuits
Figure 15. Interfacing to Microprocessors with Bidirectional Reset I/O
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VOUT
VIN
IN
OUT
+
LM2941
GND
24.9k
14.7k
2.2mF
ADJ
SD
7.15k
11.5k
VOUT = 3.3V
VIN(TRIP) = 5.0V
VCC
LM3722
RESET
MR
OVERRIDE
5V
4V
VIN
3.3V
VOUT
tRP
RESET
Figure 16. Regulator/Switch with Long-Term Overvoltage Lockout Prevents Overdissipation in Linear
Regulator
3.3V
VCC
RESET
LM3722
MR
RESET
GND
tRP
tRP
tRP
Mechanical
Switch
MR
Figure 17. LM3722 Switch Debouncer
10
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MTP50P03HDL
VIN
VOUT
LOAD
C
VCC
RESET
R
LM3723
GND
VIN
VOUT
RESET
tRP
Figure 18. LM3723 Power-On Delay
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REVISION HISTORY
Changes from Revision D (March 2013) to Revision E
Page
•
Changed layout of National Data Sheet to TI format .......................................................................................................... 11
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PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
LM3724EM5-3.08/NOPB
LM3724EM5-4.63/NOPB
LM3724IM5-2.32/NOPB
LM3724IM5-3.08/NOPB
LM3724IM5-4.63/NOPB
LM3724IM5X-3.08/NOPB
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
DBV
DBV
DBV
DBV
DBV
DBV
5
5
5
5
5
5
1000 RoHS & Green
1000 RoHS & Green
1000 RoHS & Green
1000 RoHS & Green
1000 RoHS & Green
3000 RoHS & Green
SN
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-1-260C-UNLIM
-40 to 125
-40 to 125
-40 to 85
-40 to 85
-40 to 85
-40 to 85
R63B
R62B
R50B
R53B
R55B
R53B
SN
SN
SN
SN
SN
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
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9-Aug-2022
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
K0
P1
W
B0
Reel
Diameter
Cavity
A0
A0 Dimension designed to accommodate the component width
B0 Dimension designed to accommodate the component length
K0 Dimension designed to accommodate the component thickness
Overall width of the carrier tape
W
P1 Pitch between successive cavity centers
Reel Width (W1)
QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE
Sprocket Holes
Q1 Q2
Q3 Q4
Q1 Q2
Q3 Q4
User Direction of Feed
Pocket Quadrants
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
LM3724EM5-3.08/NOPB SOT-23
LM3724EM5-4.63/NOPB SOT-23
LM3724IM5-2.32/NOPB SOT-23
LM3724IM5-3.08/NOPB SOT-23
LM3724IM5-4.63/NOPB SOT-23
LM3724IM5X-3.08/NOPB SOT-23
DBV
DBV
DBV
DBV
DBV
DBV
5
5
5
5
5
5
1000
1000
1000
1000
1000
3000
178.0
178.0
178.0
178.0
178.0
178.0
8.4
8.4
8.4
8.4
8.4
8.4
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
1.4
1.4
1.4
1.4
1.4
1.4
4.0
4.0
4.0
4.0
4.0
4.0
8.0
8.0
8.0
8.0
8.0
8.0
Q3
Q3
Q3
Q3
Q3
Q3
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
TAPE AND REEL BOX DIMENSIONS
Width (mm)
H
W
L
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
LM3724EM5-3.08/NOPB
LM3724EM5-4.63/NOPB
LM3724IM5-2.32/NOPB
LM3724IM5-3.08/NOPB
LM3724IM5-4.63/NOPB
LM3724IM5X-3.08/NOPB
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
DBV
DBV
DBV
DBV
DBV
DBV
5
5
5
5
5
5
1000
1000
1000
1000
1000
3000
208.0
208.0
208.0
208.0
208.0
208.0
191.0
191.0
191.0
191.0
191.0
191.0
35.0
35.0
35.0
35.0
35.0
35.0
Pack Materials-Page 2
PACKAGE OUTLINE
DBV0005A
SOT-23 - 1.45 mm max height
S
C
A
L
E
4
.
0
0
0
SMALL OUTLINE TRANSISTOR
C
3.0
2.6
0.1 C
1.75
1.45
1.45
0.90
B
A
PIN 1
INDEX AREA
1
2
5
(0.1)
2X 0.95
1.9
3.05
2.75
1.9
(0.15)
4
3
0.5
5X
0.3
0.15
0.00
(1.1)
TYP
0.2
C A B
NOTE 5
0.25
GAGE PLANE
0.22
0.08
TYP
8
0
TYP
0.6
0.3
TYP
SEATING PLANE
4214839/G 03/2023
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. Refernce JEDEC MO-178.
4. Body dimensions do not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not
exceed 0.25 mm per side.
5. Support pin may differ or may not be present.
www.ti.com
EXAMPLE BOARD LAYOUT
DBV0005A
SOT-23 - 1.45 mm max height
SMALL OUTLINE TRANSISTOR
PKG
5X (1.1)
1
5
5X (0.6)
SYMM
(1.9)
2
3
2X (0.95)
4
(R0.05) TYP
(2.6)
LAND PATTERN EXAMPLE
EXPOSED METAL SHOWN
SCALE:15X
SOLDER MASK
OPENING
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
METAL
EXPOSED METAL
EXPOSED METAL
0.07 MIN
ARROUND
0.07 MAX
ARROUND
NON SOLDER MASK
DEFINED
SOLDER MASK
DEFINED
(PREFERRED)
SOLDER MASK DETAILS
4214839/G 03/2023
NOTES: (continued)
6. Publication IPC-7351 may have alternate designs.
7. Solder mask tolerances between and around signal pads can vary based on board fabrication site.
www.ti.com
EXAMPLE STENCIL DESIGN
DBV0005A
SOT-23 - 1.45 mm max height
SMALL OUTLINE TRANSISTOR
PKG
5X (1.1)
1
5
5X (0.6)
SYMM
(1.9)
2
3
2X(0.95)
4
(R0.05) TYP
(2.6)
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
SCALE:15X
4214839/G 03/2023
NOTES: (continued)
8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
9. Board assembly site may have different recommendations for stencil design.
www.ti.com
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TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE
DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD
PARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable
standards, and any other safety, security, regulatory or other requirements.
These resources are subject to change without notice. TI grants you permission to use these resources only for development of an
application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license
is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you
will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these
resources.
TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction with
such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for
TI products.
TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2023, Texas Instruments Incorporated
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