TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
D Qualified for Automotive Applications
D Customer-Specific Configuration Control
D
D
D
D
D
D
D
D
Can Be Supported Along With
Major-Change Approval
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Supply Current of 220 nA (Typ)
Precision Supply Voltage Supervision
Range: 1.8 V, 2.5 V, 3.0 V, 3.3 V
Power-On Reset Generator With Selectable
Delay Time of 10 ms or 200 ms
Push/Pull RESET Output (TPS3836),
RESET Output (TPS3837), or
Open-Drain RESET Output (TPS3838)
Manual Reset
5-Pin SOT-23 Package
Temperature Range: −40°C to 125°C
D Applications Include
− Applications Using Automotive
Low-Power DSPs, Microcontrollers, or
Microprocessors
− Battery-Powered Equipment
− Intelligent Instruments
− Wireless Communication Systems
− Automotive Systems
TPS3836, TPS3838
DBV PACKAGE
(TOP VIEW)
CT
1
GND
2
MR
3
5
VDD
4
RESET
TPS3837
DBV PACKAGE
(TOP VIEW)
description
The TPS3836, TPS3837, TPS3838 families of
supervisory circuits provide circuit initialization
and timing supervision, primarily for DSP and
processor-based systems.
CT
1
GND
2
MR
3
5
VDD
4
RESET
During power on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the
supervisory circuit monitors VDD and keeps RESET output active as long as VDD remains below the threshold
voltage VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system
reset. The delay time starts after VDD has risen above the threshold voltage VIT.
When CT is connected to GND a fixed delay time of typical 10 ms is asserted. When connected to VDD the delay
time is typically 200 ms.
When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again.
All the devices of this family have a fixed-sense threshold voltage VIT set by an internal voltage divider.
The TPS3836 has an active-low push-pull RESET output. The TPS3837 has active-high push-pull RESET, and
TPS3838 integrates an active-low open-drain RESET output.
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.
Copyright 2007, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
description (continued)
TPS3836K33
VDD
MSP430
VCC
CT
Xin
RESET
RST
MR
T
Xout
Quartz
32 kHz
VSS
GND
Lithium
Battery
3.6 V
TYPICAL OPERATING CIRCUIT
The product spectrum is designed for supply voltages of 1.8 V, 2.5 V, 3 V, and 3.3 V. The circuits are available
in a 5-pin SOT-23 package. The TPS3836-Q-Q1, TPS3837-Q-Q1, TPS3838-Q-Q1 families are characterized
for operation over a temperature range of −40°C to 125°C.
PACKAGE INFORMATION
TA
−40°C
125°C
40 C to 125
C
†
DEVICE NAME
THRESHOLD VOLTAGE
SYMBOL
TPS3836E18QDBVRQ1†
1.71 V
PDNQ
TPS3836J25QDBVRQ1†
2.25 V
PDSQ
TPS3836H30QDBVRQ1†
2.79 V
PHRQ
TPS3836L30QDBVRQ1†
2.64 V
PCAQ
TPS3836K33QDBVRQ1†
2.93 V
PDTQ
TPS3837E18QDBVRQ1†
1.71 V
PDOQ
TPS3837J25QDBVRQ1†
2.25 V
PDRQ
TPS3837L30QDBVRQ1†
2.64 V
PCBQ
TPS3837K33QDBVRQ1†
2.93 V
PDUQ
TPS3838E18QDBVRQ1†
1.71 V
PDQQ
TPS3838J25QDBVRQ1†
2.25 V
PDPQ
TPS3838L30QDBVRQ1†
2.64 V
PCCQ
TPS3838K33QDBVRQ1†
2.93 V
PDVQ
DBVR indicates tape and reel of 3000 parts.
ORDERING INFORMATION
TPS383 6 E 18 Q DBV R Q1
Automotive Designator
Reel
Package
Q-Temperature Designator
Nominal Supply Voltage
Typical Reset Threshold Voltage
Functionality
Family
2
POST OFFICE BOX 655303
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TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
FUNCTION TABLE TPS3836, TPS3837, TPS3838
†
‡
MR
VDD > VIT
RESET†
RESET‡
L
0
L
H
L
1
L
H
H
0
L
H
H
1
H
L
TPS3836 and TPS3838
TPS3837
functional block diagram
VDD
CT
R3
MR
C1
R1
+
S1
Reset Logic
and Timer
−
Reset (TPS3837-Push-Pull)
Reset (TPS3836-Push-Pull
TPS3838-Open-Drain)
R2
C2
S2
Band-Gap
Reference
S3
C3
Refresh
Timer
GND
POST OFFICE BOX 655303
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3
TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
timing diagram
A
B
C
D
E
F
G
VDD
VIT
< 1.1 V
t
MR
t
RESET
t
Undefined
Output
4
td
POST OFFICE BOX 655303
td
• DALLAS, TEXAS 75265
td
Undefined
Output
TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
All other pins (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 7 V
Maximum low output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA
Maximum high output current, IOH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −5 mA
Input clamp current, IIK (VI < 0 or VI > VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA
Output clamp current, IOK (VO < 0 or VO > VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 125°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Soldering temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND. For reliable operation, the device must not be operated at 7 V for more than t=1000 h
continuously
DISSIPATION RATING TABLE
PACKAGE
TA VIT,
VDD < 3 V
220
500
VDD > VIT,
VDD > 3 V
250
550
10
25
−40
−60
−25
VI = 0 V to VDD
−200
V
mV
MR
(see Note 4)
VDD = 6 V
V
0.2
1.64
Internal pullup resistor at MR
Input capacitance at MR, CT
MAX
TPS383xJ25
VDD < VIT
CI
TYP
TPS383xE18
Hysteresis at VDD input
High-level
High
level input current
MIN
IOH = −2 mA
−100
µA
25
nA
−340
µA
25
nA
25
nA
nA
µA
30
kΩ
5
pF
NOTES: 2. The lowest voltage at which RESET output becomes active. tr, VDD ≥ 15 µs/V
3. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1 µF) should be placed near the supply terminal.
4. If manual reset is unused, MR should be connected to VDD to minimize current consumption.
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
timing requirements at RL = 1 MΩ, CL = 50 pF, TA = 25_C
PARAMETER
tw
Pulse width
TEST CONDITIONS
MIN
TYP
MAX
UNIT
at VDD
VIH = VIT + 0.2 V,
VIL = VIT − 0.2 V
6
µs
at MR
VDD ≥ VIT + 0.2 V,
VIH = 0.7 × VDD
VIL = 0.3 × VDD,
1
µs
switching characteristics at RL = 1 MΩ, CL = 50 pF, TA = 25_C
PARAMETER
TEST CONDITIONS
VDD ≥ VIT + 0.2 V,
MR = 0.7 × VDD,
CT = GND,
See timing diagram
td
tPHL
tPLH
Delay time
VDD ≥ VIT + 0.2 V,
MR = 0.7 × VDD,
CT = VDD ,
See timing diagram
Propagation (delay) time, high
high-to-low-level
to low level output
Propagation (delay) time, low
to high level output
low-to-high-level
VDD to RESET delay
(TPS3836 TPS3838)
(TPS3836,
VDD to RESET delay
(TPS3837)
MIN
5
TYP
MAX
10
UNIT
15
ms
100
200
300
VIL = VIT − 0.2 V,
VIH = VIT + 0.2 V
10
VIL = 1.6 V
50
VIL = VIT − 0.2 V,
VIH = VIT + 0.2 V
10
VIL = 1.6 V
50
0.1
µs
0.1
µs
tPHL
Propagation (delay) time, high-to-low-level output
MR to RESET delay
(TPS3836, TPS3838)
VDD ≥ VIT + 0.2 V,
tPLH
Propagation (delay) time, low-to-high-level output
MR to RESET delay
(TPS3837)
VIL = 0.7 × VDD
VIL = 0.3 × VDD,
µs
µs
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
IDD
Supply current
vs Supply voltage
1
IMR
Manual reset current
vs Manual reset voltage
2
VOL
Low-level output voltage
vs Low-level output current
3
VOH
High-level output voltage
vs High-level output current
4
Normalized reset threshold voltage
vs Free-air temperature
5
Minimum pulse duration at VDD
vs VDD Threshold overdrive
6
POST OFFICE BOX 655303
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TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
MANUAL RESET CURRENT
vs
MANUAL RESET VOLTAGE
10
100
MR = Open
CT = GND
VDD = 6 V
CT = GND
IMR − Manual Reset Current − µA
TA = 85°C
IDD − Supply Current − µA
8
TA = 25°C
6
TA = 0°C
4
TA = −40°C
2
0
0
2
4
0
TA = −40°C
−100
TA = 0°C
−200
TA = 25°C
−300
TA = 85°C
−400
−500
−2
6
0
VDD − Supply Voltage − V
Figure 1
6
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
2.0
2.0
VDD = 2 V
MR = OPEN
CT = GND
VOH − High-Level Output Voltage − V
VOL − Low-Level Output Voltage − V
4
Figure 2
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
1.5
TA = 25°C
1.0
TA = 85°C
TA = 0°C
0.5
TA = −40°C
0.0
VDD = 2 V
MR = OPEN
CT = GND
1.5
TA = 85°C
TA = 25°C
1.0
TA = 0°C
0.5
TA = −40°C
0.0
0
1
2
3
4
5
6
7
IOL − Low-Level Output Current − mA
Figure 3
8
2
VMR − Manual Reset Voltage − V
POST OFFICE BOX 655303
0
1
2
3
4
IOH − High-Level Output Current − mA
Figure 4
• DALLAS, TEXAS 75265
5
TPS3836E18-Q1 / J25-Q1 / H30-Q1 / L30-Q1 / K33-Q1
TPS3837E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1, TPS3838E18-Q1 / J25-Q1 / L30-Q1 / K33-Q1
NANOPOWER SUPERVISORY CIRCUITS
SGLS141A − DECEMBER 2002 − REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
NORMALIZED RESET THRESHOLD
VOLTAGE
vs
FREE-AIR TEMPERATURE
Normalized Reset Threshold Voltage − V
1.001
1
0.999
0.998
0.997
CT = GND,
MR = Open
0.996
0.995
−40
−15
10
35
60
TA − Free-Air Temperature − °C
85
Figure 5
MINIMUM PULSE DURATION AT VDD
vs
VDD THRESHOLD OVERDRIVE
22
MR = Open
CT = GND
TA = 25°C
20
Minimum Pulse Duration at VDD − µs
18
16
14
12
10
8
6
4
2
0
0
0.2
0.4 0.6
0.8
1
1.2 1.4
1.6 1.8
2
VDD − Threshold Overdrive − V
Figure 6
POST OFFICE BOX 655303
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9
PACKAGE OPTION ADDENDUM
www.ti.com
31-May-2024
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
TPS3836J25QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
PDSQ
Samples
TPS3836K33QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
PDTQ
Samples
TPS3836L30QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
PCAQ
Samples
TPS3838K33QDBVRQ1
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
PDVQ
Samples
(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