TLC7705QPWRG4Q1 [TI]
MICROPOWER SUPPLY VOLTAGE SUPERVISORS; 微功率电源电压监控器
| 型号： | TLC7705QPWRG4Q1 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | MICROPOWER SUPPLY VOLTAGE SUPERVISORS |
| 文件： | 总14页 (文件大小：217K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
PW PACKAGE
(TOP VIEW)
D
D
D
Qualified for Automotive Applications
Power-On Reset Generator
Automatic Reset Generation After
Voltage Drop
CONTROL
RESIN
CT
VDD
1
2
3
4
8
7
6
5
SENSE
RESET
RESET
D
Precision Voltage Sensor
GND
D
Temperature-Compensated Voltage
Reference
D
Programmable Delay Time by External
Capacitor
D
D
D
Supply Voltage Range . . . 2 V to 6 V
Defined RESET Output from V ≥1 V
DD
Power-Down Control Support for Static
RAM With Battery Backup
D
Maximum Supply Current of 16 μA
Power Saving Totem-Pole Outputs
D
description
The TLC77xx family of micropower supply voltage supervisors provide reset control, primarily in microcomputer
and microprocessor systems.
During power-on, RESET is asserted when V reaches 1 V. After minimum V (≥ 2 V) is established, the
DD
DD
circuit monitors SENSE voltage and keeps the reset outputs active as long as SENSE voltage (V
)
I(SENSE)
remains below the threshold voltage. An internal timer delays return of the output to the inactive state to ensure
proper system reset. The delay time, t , is determined by an external capacitor:
d
4
t = 2.1 × 10 × C
d
T
Where
C is in farads
T
t is in seconds
d
Except for the TLC7701, which can be customized with two external resistors, each supervisor has a fixed
SENSE threshold voltage set by an internal voltage divider. When SENSE voltage drops below the threshold
voltage, the outputs become active and stay in that state until SENSE voltage returns above threshold voltage
and the delay time, t , has expired.
d
In addition to the power-on-reset and undervoltage-supervisor function, the TLC77xx adds power-down control
support for static RAM. When CONTROL is tied to GND, RESET will act as active high. The voltage monitor
contains additional logic intended for control of static memories with battery backup during power failure. By
driving the chip select (CS) of the memory circuit with the RESET output of the TLC77xx and with the CONTROL
driven by the memory bank select signal (CSH1) of the microprocessor (see Figure 10), the memory circuit is
automatically disabled during a power loss. (In this application the TLC77xx power has to be supplied by the
battery.)
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 © 2008, 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
}
†
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
§
T
A
PACKAGE
TSSOP − PW
Tape and reel
Tape and reel
Tape and reel
TLC7701QPWRQ1
TLC7705QPWRQ1
TLC7733QPWRQ1
7701Q1
−40°C to 125°C
TSSOP − PW
TSSOP − PW
7705Q1
7733Q1
†
For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI web site at http://www.ti.com.
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.
The PW package is only available left-end taped and reeled (indicated by the R suffix on the device type;
e.g., TLC7701QPWREP).
‡
§
FUNCTION TABLE
logic symbol¶
CONTROL
V
>V
RESET
RESIN
RESET
I(SENSE)
IT+
≥1
COMP
S<V
7
2
3
L
L
L
L
False
True
H
H
H
L
L
L
S
SENSE
RESIN
CT
IT
V
Z1
IT
L
H
H
L
False
True
§
§
L
L
H
1
Z2
Z3
H
H
H
H
False
True
H
H
H
H
L
L
L
×
CX
1
L
≥1
≥1
5
6
RESET
RESET
H
H
False
True
2
1
§
H
CONTROL
§
RESET and RESET states shown are valid for t > t .
3
d
¶
This symbol is in accordance with ANSI/IEEE Std 91−1984 and
IEC Publication 617-12.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
functional block diagram
8
V
DD
1
CONTROL
6
†
RESET
50 μA
5
†
RESET
2
RESIN
‡
R1
7
SENSE
1 MΩ
‡
R2
1.1 V
4
GND
3
CT
†
‡
Outputs are totem-pole configuration. External pullup or pulldown resistors are not required.
Nominal values:
R1 (Typ)
0
R2 (Typ)
∞
TLC7701
TLC7705 910 kΩ
TLC7733 750 kΩ
290 kΩ
450 kΩ
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
timing diagram
V
DD
and V
I(SENSE)
V
IT+
V
IT+
Threshold Voltages
V
IT−
V
res
t
t
d
t
d
RESET
Output
Output
Undefined
t
absolute maximum ratings over operating free-air temperature (unless otherwise noted)†
Supply voltage, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
DD
Input voltage range, CONTROL, RESIN, SENSE (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 7 V
Maximum low output current, I
Maximum high output current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −10 mA
OL
OH
Input clamp current, I (V < 0 or V > V )
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 mA
10 mA
IK
I
I
DD
OK
O
O
DD
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T : TL77xxQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 125°C
A
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
stg
†
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.
DISSIPATION RATING TABLE
DERATING FACTOR
T
≤ 25°C
T
A
= 85°C
T = 125°C
A
POWER RATING
A
PACKAGE
POWER RATING
ABOVE T = 25°C
POWER RATING
A
PW
525 mW
4.2 mW/°C
273 mW
105 mW
recommended operating conditions at specified temperature range
MIN
2
MAX
UNIT
V
Supply voltage, V
6
DD
Input voltage, V
0
V
DD
V
I
‡
0.7×V
V
High-level input voltage at RESIN and CONTROL , V
DD
IH
‡
0.2×V
−2
V
Low-level input voltage at RESIN and CONTROL , V
DD
IL
High-level output current, I
mA
mA
ns/V
°C
OH
OL
V
≥ 2.7 V
DD
Low-level output current, I
2
Input transition rise and fall rate at RESIN and CONTROL, Δt/ΔV
100
125
Operating free-air temperature range, T
−40
A
‡
To ensure a low supply current, V should be kept <0.3 V and V > V −0.3 V.
IL
IH
DD
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
electrical characteristics over recommended operating conditions (see Note 2) (unless otherwise
noted)
TLC77xx
PARAMETER
TEST CONDITIONS
UNIT
†
MIN
1.8
2.5
4.3
3.7
MAX
TYP
V
V
V
V
V
V
V
V
= 2 V
DD
DD
DD
DD
DD
DD
DD
DD
= 2.7 V
= 4.5 V
= 4.5 V
= 2 V
I
= −20 μA
OH
V
OH
High-level output voltage
V
I
= −2 mA
OH
0.2
0.2
= 2.7 V
= 4.5 V
= 4.5 V
I
OL
I
OL
= 20 μA
V
V
Low-level output voltage
V
V
OL
0.2
= 2 mA
0.5
TLC7701
TLC7705
TLC7733
TLC7701
TLC7705
TLC7733
1.04
4.43
1.1
4.5
1.16
4.63
3.03
Negative-going input threshold voltage,
SENSE (see Note 3)
V
DD
= 2 V to 6 V
= 2 V to 6 V
IT−
2.855
2.93
30
V
V
Hysteresis voltage, SENSE
V
I
mV
V
hys
DD
70
‡
= 20 μA
1
Power-up reset voltage
res
OL
V = 0 V to V
2
15
10
2
RESIN
I
DD
V = V
7
5
CONTROL
I
DD
Input current
SENSE
I
μA
μA
I
V = 5 V
I
SENSE, TLC7701 only
V = 5 V
I
RESIN = V
SENSE = V ≥ V max + 0.2 V
,
DD
I
Supply current
9
16
DD
IT
DD
CONTROL = 0 V, Outputs open
V
DD
= 5 V, = 0 ,
V
CT
I
Supply current during t
RESIN = V
,
SENSE = V ,
DD
120
50
150
μA
DD(d)
d
DD
CONTROL = 0 V, Outputs open
V = 0 V to V
C
Input capacitance, SENSE
pF
I
I
DD
†
‡
Typical values apply at T = 25°C.
The lowest supply voltage at which RESET becomes active. The symbol V
A
is not currently listed within EIA or JEDEC standards for
res
semiconductor symbology. Rise time of V ≥ 15 μs/V.
DD
NOTES: 2. All characteristics are measured with C = 0.1 μF.
T
3. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1 μF) should be connected near the supply terminals.
5
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TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
switching characteristics at VDD = 5 V, RL = 2 kΩ, CL = 50 pF, TA = Full Range (unless otherwise
noted)
MEASURED
FROM
(INPUT)
TLC77xx
TYP
PARAMETER
TO
TEST CONDITIONS
UNIT
MIN
MAX
(OUTPUT)
RESIN = 0.7 × V
,
DD
RESET
and
CONTROL = 0.2 × V
C = 100 nF,
T
,
DD
t
d
Delay time
V
≥ V
1.1
2.1
4.2
ms
I(SENSE)
IT+
RESET
T = Full range,
A
See timing diagram
Propagation delay time,
low-to-high-level output
t
t
t
t
t
t
t
t
20
5
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
RESET
RESET
RESET
RESET
V
V
= V max + 0.2 V,
IT+
IH
Propagation delay time,
high-to-low-level output
= V min − 0.2 V,
IL
IT−
SENSE
RESIN = 0.7 × V
CONTROL = 0.2 × V
CT = NC
,
μs
DD
Propagation delay time,
low-to-high-level output
5
,
DD
†
Propagation delay time,
high-to-low-level output
20
20
60
65
20
Propagation delay time,
low-to-high-level output
μs
V
V
= 0.7 × V ,
DD
IH
Propagation delay time,
high-to-low-level output
= 0.2 × V
,
IL
DD
RESIN
SENSE = V max + 0.2 V,
IT+
ns
Propagation delay time,
low-to-high-level output
CONTROL = 0.2 × V
CT = NC
,
DD
†
Propagation delay time,
high-to-low-level output
μs
V
V
= 0.7 × V
,
DD
IH
Propagation delay time,
low-to-high-level output
t
58
58
ns
PLH
PHL
= 0.2 × V
,
IL
DD
CONTROL
RESET
SENSE = V max + 0.2 V,
IT+
Propagation delay time,
high-to-low-level output
RESIN = 0.7 × V
CT = NC
,
DD
t
ns
†
V
V
= V max + 0.2 V,
IT+
IH
SENSE
RESIN
3
1
Low-level minimum pulse
duration to switch RESET
and RESET
= V min − 0.2 V,
IL
IT−
μs
V
V
= 0.2 × V
,
IL
DD
= 0.7 × V
IH
DD
RESET
and
t
t
Rise time
Fall time
10% to 90%
90% to 10%
8
4
r
ns/V
f
RESET
†
NC = No capacitor, and includes up to 100-pF probe and jig capacitance.
6
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TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
PARAMETER MEASUREMENT INFORMATION
5 V
DUT
R
L
C
L
(see Note A)
(see Note B)
NOTES: A. For switching characteristics, R = 2 kΩ.
L
B. C = 50 pF includes jig and probe capacitance.
L
Figure 1. RESET AND RESET Output Configurations
I, Q, and Y suffixed devices
t
w(L)
0.7 × V
0.5 × V
0.2 × V
DD
DD
DD
M suffixed devices
t
t
w(L)
w(L)
2.7 V
1.5 V
0.4 V
V
V
V
max + 200 mV
IT+
IT+
V
IT−
min − 200 mV
IT−
(a) RESIN
(b) SENSE
Figure 2. Input Pulse Definition Waveforms
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
TYPICAL CHARACTERISTICS
NORMALIZED INPUT THRESHOLD VOLTAGE
SUPPLY CURRENT
vs
vs
TEMPERATURE
SUPPLY VOLTAGE
10
9
1.005
1.004
8
1.003
1.002
7
6
5
1.001
1
4
3
RESIN = V = −1 V to 6.5 V
SENSE = GND
DD
2
0.999
0.998
0.997
CONTROL = GND
CT = Open = 100 pF
1
0
T
A
= 25°C
−1
−0.5
−40
−20
0
20
40
60
80
100 120
0.5
1.5
2.5
3.5
4.5
5.5
6.5
T
A
− Temperature − °C
V
DD
− Supply Voltage − V
Figure 3
Figure 4
LOW-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
HIGH-LEVEL OUTPUT CURRENT
6
5
5
4.5
4
V
= 4.5 V
DD
RESIN = 4.5 V
SENSE = 5 V
CONTROL = 0 V
CT = Open = 100 pF
0°C
3.5
3
4
3
−55°C
125°C
85°C
125°C
85°C
25°C
0°C
2.5
2
25°C
−40°C
2
1
0
1.5
1
−40°C
−55°C
V
DD
= 4.5 V
RESIN = 4.5 V
SENSE = 0.5 V
CONTROL = 0 V
CT = Open = 100 pF
0.5
0
−0.5
−1
−5
−1
0
5
10
15
20
25
30
5
0
−5 −10 −15 −20 −25 −30 −35 −40
I
− Low-Level Output Current − mA
I
− High-Level Output Current − mA
OL
OH
Figure 5
Figure 6
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
TYPICAL CHARACTERISTICS
INPUT CURRENT
vs
INPUT VOLTAGE AT SENSE
8
V
DD
= 4.5 V
6
4
2
CT = Open = 100 pF
125°C
−55°C
0
−2
125°C
−55°C
−4
−6
−8
−10
−1
0
1
2
3
4
5
6
V − Input Voltage at SENSE − V
I
Figure 7
MINIMUM PULSE DURATION AT SENSE
vs
SENSE THRESHOLD OVERDRIVE
7
V
DD
= 2 V
Control = 0.4 V
RESIN = 1.4 V
CT = Open = 100 pF
6
5
4
3
2
1
0
0
50
100 150 200 250 300 350 400
Sense Threshold Overdrive − mV
Figure 8
9
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TLC7701-Q1, TLC7705-Q1, TLC7733-Q1
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
ꢀ
SGLS208A − OCTOBER 2003 − REVISED MAY 2008
APPLICATION INFORMATION
V
DD
0.1 μF
0.1 μF
100 kΩ
V
DD
V
DD
TLC77xx
RESIN RESET
RESET
SENSE RESET
CT CONTROL
GND
TMS70C20
GND
NC
RESET
Figure 9. Reset Controller in a Microcomputer System
V
DD
0.1 μF
V
DD
TLC77xx
RESIN
0.1 μF
0.1 μF
SENSE
RESET
CONTROL
RESET
GND
V
DD
CT
RESET
CSH1
CS
32K ꢀ 8
CMOS RAM
TMS370
16
8
A0−A15
D0−D7
R/W
ADD0−15
DATA0−7
R/W
GND
GND
Figure 10. Data Retention During Power Down Using Static CMOS RAMs
10
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PACKAGE OPTION ADDENDUM
www.ti.com
10-Aug-2012
PACKAGING INFORMATION
Status (1)
Eco Plan (2)
MSL Peak Temp (3)
Samples
Orderable Device
Package Type Package
Drawing
Pins
Package Qty
Lead/
Ball Finish
(Requires Login)
TLC7701QPWRG4Q1
TLC7701QPWRQ1
TLC7705QPWRG4Q1
TLC7705QPWRQ1
TLC7733QPWRG4Q1
TLC7733QPWRQ1
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
PW
PW
PW
PW
PW
PW
8
8
8
8
8
8
2000
2000
2000
2000
2000
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
CU NIPDAU Level-1-260C-UNLIM
CU NIPDAU Level-1-260C-UNLIM
CU NIPDAU Level-1-260C-UNLIM
CU NIPDAU Level-1-260C-UNLIM
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
(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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
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.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
10-Aug-2012
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.
OTHER QUALIFIED VERSIONS OF TLC7701-Q1, TLC7705-Q1, TLC7733-Q1 :
Catalog: TLC7701, TLC7705, TLC7733
•
Enhanced Product: TLC7701-EP, TLC7705-EP, TLC7733-EP
•
Military: TLC7705M, TLC7733M
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Enhanced Product - Supports Defense, Aerospace and Medical Applications
•
Military - QML certified for Military and Defense Applications
•
Addendum-Page 2
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