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TL7700
SLVS220G – JULY 1999 – REVISED AUGUST 2016
TL7700 Supply-Voltage Supervisor
1 Features
3 Description
•
The TL7700 is a bipolar integrated circuit designed
for use as a reset controller in microcomputer and
microprocessor systems. The SENSE voltage can be
set to any value greater than 0.5 V using two external
resistors.
1
•
•
•
•
•
Adjustable Sense Voltage With Two External
Resistors
1.0% Sense Voltage Tolerance (25°C)
Adjustable Hysteresis of Sense Voltage
Wide Operating Supply-Voltage Range:
1.8 V to 40 V
Wide Operating Temperature Range:
–40°C to 85°C
Low Power Consumption:
ICC = 0.6 mA Typical, VCC = 40 V
Circuit function is very stable, with supply voltage in
the 1.8-V to 40-V range. Minimum supply current
allows use with ac line operation, portable battery
operation, and automotive applications. The TL7700
device is designed for operation from –40°C to 85°C.
Device Information(1)
PART NUMBER
2 Applications
•
•
•
•
•
•
Digital Signal Processors (DSPs)
Microcontrollers (MCUs)
FPGAs, ASICs
Notebooks, Desktop Computers
Set-Top Boxes
Industrial Control Systems
PACKAGE
BODY SIZE (NOM)
TL7700DGK
VSSOP (8)
3.00 mm × 3.00 mm
TL7700P
PDIP (8)
9.81 mm × 6.35 mm
TL7700PS
SO (8)
6.20 mm × 5.30 mm
TL7700PW
TSSOP (8)
3.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Block Diagram
VCC
Vs = 500 mV Typ
RESET
Reference
Voltage
SENSE
+
+
+
−
−
−
ICT (A)
High:
On
R
Q
S
IS (A)
GND
CT
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TL7700
SLVS220G – JULY 1999 – REVISED AUGUST 2016
www.ti.com
Table of Contents
1
2
3
4
5
6
7
8
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Pin Configuration and Functions .........................
Specifications.........................................................
1
1
1
2
3
4
6.1
6.2
6.3
6.4
6.5
6.6
6.7
4
4
4
4
5
5
6
Absolute Maximum Ratings ......................................
ESD Ratings..............................................................
Recommended Operating Conditions.......................
Thermal Information ..................................................
Electrical Characteristics...........................................
Switching Characteristics ..........................................
Typical Characteristics ..............................................
Parameter Measurement Information .................. 8
Detailed Description ............................................ 10
8.1 Overview ................................................................. 10
8.2 Functional Block Diagram ....................................... 10
8.3 Feature Description................................................. 10
8.4 Device Functional Modes........................................ 12
9
Application and Implementation ........................ 13
9.1 Application Information............................................ 13
9.2 Typical Application ................................................. 13
10 Power Supply Recommendations ..................... 15
11 Layout................................................................... 15
11.1 Layout Guidelines ................................................. 15
11.2 Layout Example .................................................... 15
12 Device and Documentation Support ................. 16
12.1
12.2
12.3
12.4
12.5
Receiving Notification of Documentation Updates
Community Resource............................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
16
16
16
16
16
13 Mechanical, Packaging, and Orderable
Information ........................................................... 16
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision F (August 2011) to Revision G
Page
•
Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
•
Deleted Ordering Information table, see POA at the end of the data sheet........................................................................... 1
•
Changed values in the Thermal Information table to align with JEDEC standards................................................................ 4
2
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5 Pin Configuration and Functions
DGK Package
8-Pin VSSOP
Top View
RESET
NC
CT
SENSE
1
8
2
7
3
6
4
5
P, PS, or PW Package
8-Pin PDIP, SO, TSSOP
Top View
VCC
NC
NC
GND
CT
SENSE
NC
GND
1
8
2
7
3
6
4
5
RESET
NC
NC
VCC
NC – No internal connection
Pin Functions
PIN
NAME
PDIP,
SO,
TSSOP
VSSOP
I/O
DESCRIPTION
CT
1
3
I/O
Timing capacitor connection.
This terminal sets the RESET output pulse duration (tpo). It is connected internally to a
15-µA constant-current source. There is a limit on the switching speed of internal
elements; even if CT is set to 0, response speeds remain at approximately 5 to 10 µs.
If CT is open, the device can be used as an adjustable-threshold noninverting
comparator. If CT is low, the internal output-stage comparator is active, and the RESET
output transistor is on. An external voltage must not be applied to this terminal due to the
internal structure of the device. Therefore, drive the device using an open-collector
transistor, FET, or 3-state buffer (in the low-level or high-impedance state).
GND
4
5
—
Ground
Keep this terminal as low impedance as possible to reduce circuit noise.
3, 6, 7
2, 6, 7
—
No internal connection
O
Reset output
This terminal can be connected directly to a system that resets in the active-low state. A
pullup resistor usually is required because the output is an npn open-collector transistor.
An additional transistor should be connected when the active-high reset or higher output
current is required.
Voltage sense
This terminal has a threshold level of 500 mV. The sense voltage and hysteresis can be
set at the same time when the two voltage-dividing resistors are connected. The
reference voltage is temperature compensated to inhibit temperature drift in the threshold
voltage within the operating temperature range.
NC
RESET
8
1
SENSE
2
4
I
VCC
5
8
—
Power supply
This terminal is used in an operating-voltage range of 1.8 V to 40 V.
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6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
MIN
MAX
UNIT
41
V
41
V
VCC
Supply voltage (2)
Vs
Sense input voltage
VOH
Output voltage (off state)
41
V
IOL
Output current (on state)
5
mA
TJ
Operating virtual-junction temperature
150
°C
Tstg
Storage temperature
150
°C
(1)
(2)
–0.3
–65
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltage values are with respect to the network ground terminal.
6.2 ESD Ratings
VALUE
V(ESD)
(1)
(2)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1)
500
Charged-device model (CDM), per JEDEC specification JESD22C101 (2)
1000
UNIT
V
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
VCC
Supply voltage
IOL
Low-level output current
TA
Operating free-air temperature
MIN
MAX
1.8
40
UNIT
V
3
mA
–40
85
°C
6.4 Thermal Information
TL7700
THERMAL METRIC
(1)
DGK
(VSSOP)
P
(PDIP)
PS
(SO)
PW
(TSSOP)
8 PINS
8 PINS
8 PINS
8 PINS
UNIT
RθJA
Junction-to-ambient thermal resistance
173.8
57.6
112.5
172.9
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
63.1
47.4
64.2
56.6
°C/W
RθJB
Junction-to-board thermal resistance
93.9
34.7
61.6
101.2
°C/W
ψJT
Junction-to-top characterization parameter
8.5
25
25.1
5.2
°C/W
ψJB
Junction-to-board characterization parameter
92.5
34.6
60.7
99.6
°C/W
(1)
4
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
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6.5 Electrical Characteristics
VCC = 3 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
MIN
TYP
MAX
25°C
495
500
505
–40°C to 85°C
490
Vs
SENSE input voltage
Is
SENSE input current
Vs = 0.4 V
ICC
Supply current
VCC = 40 V, Vs = 0.6 V, No load
25°C
IOL = 1.5 mA
25°C
0.4
IOL = 3 mA
25°C
0.8
25°C
–40°C to 85°C
VOL
Low-level output voltage
IOH
High-level output current
VOH = 40 V, Vs = 0.6 V
ICT
Timing-capacitor charge current
Vs = 0.6 V
2
510
2.5
1.5
0.6
–40°C to 85°C
25°C
3
3.5
1
UNIT
mV
µA
mA
V
1
µA
11
15
19
µA
MIN
TYP
MAX
1
1.5
ms
6.6 Switching Characteristics
VCC = 3 V, TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
UNIT
tpi
SENSE pulse duration
CT = 0.01 µF (See Figure 17)
2
tpo
Output pulse duration
CT = 0.01 µF (See Figure 17)
0.5
µs
tr
Output rise time
CT = 0.01 µF, RL = 2.2 kΩ, CL = 100 pF
(See Figure 17)
15
µs
tf
Output fall time
CT = 0.01 µF, RL = 2.2 kΩ, CL = 100 pF
(See Figure 17)
0.5
µs
tpd
Propagation delay time, SENSE to output
CT = 0.01 µF (See Figure 17)
10
µs
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6.7 Typical Characteristics
Data at high and low temperatures are applicable only within the recommended operating conditions.
16
Timing-Capacitor Charge Current − mA
I CC − Supply Current − mA
1.2
1.0
0.8
TA = 85°C
TA = 25°C
TA = −40°C
0.6
0.4
0.2
TA = −40°C
15
14
TA = 25°C
13
TA = 85°C
12
11
10
0
0
10
20
30
40
50
0
60
Figure 1. Supply Current vs Supply Voltage
40
50
60
TA = 25°C
Vs = 500.8 mV
504
1.0
Vs − Sense Input Voltage − mV
VOL − Low-Level Output Voltage − V
30
506
TA = 85°C
0.8
0.6
TA = 25°C
0.4
TA = −40°C
0.2
502
500
498
496
TA = 25°C
Vs = 498.3 mV
494
492
490
488
−75 −50 −25
0
0
1
2
3
4
5
6
0
25
50
75 100 125 150
TA − Free-Air Temperature − °C
IOL − Low-Level Output Current − mA
Figure 4. Sense Input Voltage vs Temperature
Figure 3. VOL vs IOL
3.5
109
3.0
108
t po − Output Pulse Duration − ms
I s − Sense Input Current − mA
20
Figure 2. Timing Capacitor Charge Current vs Supply
Voltage
1.2
2.5
2.0
1.5
1.0
0.5
0
−0.5
107
106
105
104
103
102
101
−1.0
0
0.1 0.2 0.3 0.4 0.5 0.6 1.0 10
1
40
1
Vs − Sense Input Voltage − V
101 102 103 104 105 106 107 108 109
Ct − Timing Capacitor − pF
Figure 5. Sense Input Current vs Sense Input Voltage
6
10
VCC − Supply Voltage − V
VCC − Supply Voltage − V
Figure 6. Output Pulse Duration vs Timing Capacitor
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Typical Characteristics (continued)
Data at high and low temperatures are applicable only within the recommended operating conditions.
Test
Point 1
2.2 kΩ
Y-Axis (TP1) = 1 V/Division
Y-Axis (TP2) = 2 V/Division
TP1
240 kΩ
VCC
Test
Point 2
RESET
Vs
SENSE
5V
TP2
CT
30 kΩ
GND
510 pF
100 pF
X-Axis = 0.2 ms/Division
Figure 7. VCC vs Output Waveform 1 - See Figure 8
Figure 8. VCC vs Output Test Circuit 1
Test
Point 1
2.2 kΩ
Y-Axis (TP1) = 1 V/Division
Y-Axis (TP2) = 2 V/Division
TP1
240 kΩ
VCC
Test
Point 2
RESET
Vs
TP2
SENSE
5V
CT
30 kΩ
GND
100 pF
510 pF
X-Axis = 0.2 ms/Division
Figure 10. VCC vs Output Test Circuit 2
Figure 9. VCC vs Output Waveform 2 - See Figure 10
Y-Axis (TP1) = 1 V/Division
Y-Axis (TP2) = 2 V/Division
Test
Point 1
2.2 kW
TP1
240 kW
VCC
RESET
Vs
Test
Point 2
SENSE
TP2
CT
30 kW
GND
100 pF
510 pF
X-Axis = 0.2 ms/Division
Figure 11. VCC vs Output Waveform 3 - See Figure 12
Figure 12. VCC vs Output Test Circuit 3
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7 Parameter Measurement Information
−
+
A
VCC
Vs
SENSE
VCC
0.6 V
GND
Figure 13. VCC vs ICC Measurement Circuit
VCC
Vs
CT
SENSE
VCC
+
0.6 V
A
−
GND
Figure 14. VCC vs ICT Measurement Circuit
Test
Point
VCC
RESET
Vs
3V
SENSE
CT
0.4 V
GND
0.01 mF
Figure 15. IOL vs VOL Measurement Circuit
8
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Parameter Measurement Information (continued)
2.2 kW
VCC
Test
Point
RESET
+
−
A
Vs
VCC
SENSE
CT
Vs
GND
0.01 mF
Figure 16. Vs, Is Characteristics Measurement Circuit
2.2 kW
VCC
Test
Point
RESET
Vs
3V
SENSE
CT
GND
100 pF
Ct
Figure 17. Switching Characteristics Measurement Circuit
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8 Detailed Description
8.1 Overview
The TL7700 is a bipolar integrated circuit designed for use as a reset controller in microcomputer and
microprocessor systems. The SENSE voltage can be set to any value greater than 0.5 V using two external
resistors. The hysteresis value of the sense voltage also can be set by the same resistors. The device includes a
precision voltage reference, fast comparator, timing generator, and output driver, so it can generate a power-on
reset signal in a digital system.
The TL7700 has an internal 1.5-V temperature-compensated voltage reference from which all function blocks are
supplied. Circuit function is very stable, with supply voltage in the 1.8-V to 40-V range. Minimum supply current
allows use with ac line operation, portable battery operation, and automotive applications.
8.2 Functional Block Diagram
VCC
Vs = 500 mV Typ
RESET
Reference
Voltage
+
−
SENSE
+
+
−
−
ICT (A)
High:
On
R
Q
S
IS (A)
GND
CT
Copyright © 2016, Texas Instruments Incorporated
A.
ICT = 15 µA (Typ), Is = 2.5 µA (Typ)
8.3 Feature Description
8.3.1 Sense-Voltage Setting
The SENSE terminal input voltage, Vs, of the TL7700 typically is 500 mV. By using two external resistors, the
circuit designer can obtain any sense voltage over 500 mV. In Figure 18, the sensing voltage, Vs', is calculated
as:
Vs' = Vs × (R1 + R2)/R2
where
•
Vs = 500 mV typ at TA = 25°C
(1)
At room temperature, Vs has a variation of 500 mV ± 5 mV. In the basic circuit shown in Figure 18, variations of
[±5 ± (R1 + R2)/R2] mV are superimposed on Vs.
10
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Feature Description (continued)
VCC
RL
VCC
R1
RESET
RESET
Vs
SENSE
CT
R2
GND
Ct
GND
Figure 18. Setting the Sense Voltage
8.3.2 Sense-Voltage Hysteresis Setting
If the sense voltage (Vs') does not have hysteresis in it, and the voltage on the sensing line contains ripples, the
resetting of TL7700 is unstable. Hysteresis is added to the sense voltage to prevent such problems. As shown in
Figure 19, the hysteresis (Vhys) is added, and the value is determined as:
Vhys = Is × R1
where
•
Is = 2.5 μA typ at TA = 25°C
(2)
At room temperature, Is has variations of 2.5 µA ± 0.5 µA. Therefore, in the circuit shown in Figure 18, Vhys has
variations of (±0.5 × R1) µV. In circuit design, it is necessary to consider the voltage-dividing resistor tolerance
and temperature coefficient in addition to variations in Vs and Vhys.
VCC
Vhys
Vs’
1.5 V
T
RESET
tpo
tpo
T
The sense voltage, Vs', is different from the SENSE terminal input voltage, Vs. Vs normally is 500 mV for triggering.
Figure 19. VCC-RESET Timing Chart
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Feature Description (continued)
8.3.3 Output Pulse-Duration Setting
Constant-current charging starts on the timing capacitor when the sensing-line voltage reaches the TL7700
sense voltage. When the capacitor voltage exceeds the threshold level of the output drive comparator, RESET
changes from a low to a high level. The output pulse duration is the time between the point when the sense-pin
voltage exceeds the threshold level and the point when the RESET output changes from a low level to a high
level. When the TL7700 is used for system power-on reset, the output pulse duration, tpo, must be set longer
than the power rise time. The value of tpo is:
tpo = Ct × 105 seconds
where
•
Ct is the timing capacitor in farads
(3)
There is a limit on the device response speed. Even if Ct = 0, tpo is not 0, but approximately 5 µs to 10 µs.
Therefore, when the TL7700 is used as a comparator with hysteresis without connecting Ct, switching speeds
(tr/tf, tpo/tpd, and so forth) must be considered.
8.4 Device Functional Modes
Figure 20 describes how the RESET output pin responds to a change in the voltage at the sense pin. When the
sense pin drops below 500 mV, the RESET pin is pulled low.
VCC
Vhys
Vs’
1.5 V
T
RESET
tpo
tpo
T
The sense voltage, Vs', is different from the SENSE terminal input voltage, Vs. Vs normally is 500 mV for triggering.
Figure 20. VCC RESET Response and Timing
12
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9 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The TL7700 supply-voltage supervisor allows for any voltage greater than 500mV to be monitored. This flexibility
allows it to be used in many applications from FPGAs and Microcontrollers to Industrial supply monitoring.
9.2 Typical Application
Figure 21 shows an application where the TL7700 device is being used to sense the voltage supply for a
microcontroller that is supplied with 5 V. If the sense voltage drops below 4.5 V, the RESET pin is pulled LOW,
signaling the microcontroller to reset.
5V
240 kŸ
2.2 kŸ
VCC
SENSE
VCC
RESET
RESET
Microcontroller
TL7700
30 kŸ
CT
GND
VSS
510 pF
Copyright © 2016, Texas Instruments Incorporated
Figure 21. 5-V Supply Voltage Supervision
9.2.1 Design Requirements
•
•
When the TL7700 is used for system power-on reset, the output pulse duration, tpo, must be set longer than
the power rise time. The value of tpo is: tpo = Ct × 105 seconds
The RESET output is an open-collector output, so a pullup resistor is required.
9.2.2 Detailed Design Procedure
The SENSE terminal input voltage, Vs, of the TL7700 typically is 500 mV. By using two external resistors, any
sense voltage over 500 mV can be sensed.
Resistor R1 should be selected first to set the desired hysteresis. See Sense-Voltage Hysteresis Setting for
detailed information on how to set the hysteresis.
Resistor R2 should then be selected based on the R1 value and the desired Vs' voltage. In Figure 18, the
sensing voltage, Vs', is calculated as: Vs' = Vs × (R1 + R2)/R2
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Typical Application (continued)
9.2.3 Application Curve
506
TA = 25°C
Vs = 500.8 mV
Vs − Sense Input Voltage − mV
504
502
500
498
496
TA = 25°C
Vs = 498.3 mV
494
492
490
488
−75 −50 −25
0
25
50
75 100 125 150
TA − Free-Air Temperature − °C
Figure 22. Sense Input Voltage vs Temperature
14
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10 Power Supply Recommendations
The TL7700 device will operate within the supply range specified in Recommended Operating Conditions. The
device risks permanent damage over the voltage specified in Absolute Maximum Ratings.
11 Layout
11.1 Layout Guidelines
Figure 23 shows an example layout for the TL7700 device. As the RESET pin is an open collector output, a
pullup resistor is required to ensure the output is high when the output transistor is off.
11.2 Layout Example
5V
2.2 k
1
RESET
VCC
8
2
NC
NC
7
3
CT
NC
6
4
SENSE
GND
5
510 pF
240 k
30 k
GND
Figure 23. DGK Package Example Layout for 5 V Supply Supervision
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12 Device and Documentation Support
12.1 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
12.2 Community Resource
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
12.3 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
12.4 Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
12.5 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
13 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
16
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Copyright © 1999–2016, Texas Instruments Incorporated
Product Folder Links: TL7700
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
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)
TL7700CDGKR
ACTIVE
VSSOP
DGK
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
9TS
Samples
TL7700CDGKT
ACTIVE
VSSOP
DGK
8
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
9TS
Samples
TL7700CP
ACTIVE
PDIP
P
8
50
RoHS & Green
NIPDAU
N / A for Pkg Type
-40 to 85
TL7700CP
Samples
TL7700CPS
ACTIVE
SO
PS
8
80
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
T7700
Samples
TL7700CPSR
ACTIVE
SO
PS
8
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
T7700
Samples
TL7700CPW
ACTIVE
TSSOP
PW
8
150
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
T7700
Samples
TL7700CPWG4
ACTIVE
TSSOP
PW
8
150
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
T7700
Samples
TL7700CPWR
ACTIVE
TSSOP
PW
8
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
T7700
Samples
TL7700CPWRG4
ACTIVE
TSSOP
PW
8
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
T7700
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
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