G692L293TAU [GMT]
Power Management Circuit;
| 型号： | G692L293TAU |
| 厂家： | 
GLOBAL MIXED-MODE TECHNOLOGY INC |
| 描述： | Power Management Circuit |
| 文件： | 总8页 (文件大小：155K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Global Mixed-mode Technology Inc.
G692/G693
4-Pin µP Voltage Monitors with Manual Reset Input
Features
General Description
The G692/G693 are microprocessor (µP) supervisory
circuits used to monitor the power supplies in µP and
digital systems. They provide excellent circuit reliability
and low cost by eliminating external components and
adjustments when used with +5V, +3.3V, +3.0V- pow-
ered circuits. The G692/G693 also provide a de-
bounced manual reset input.
Precision Monitoring of +3V, +3.3V, and +5V
Power-Supply Voltages
Fully Specified Over Temperature
Available in Three Output Configurations
Push-Pull RESET Output (G692L)
Push-Pull RESET Output (G692H)
Open-Drain RESET Output (G693L)
140ms Min Power-On Reset Pulse Width
14µA Supply Current
Guaranteed Reset Valid to VCC = +1V
Power Supply Transient Immunity
No External Components
These circuits perform a single function: they assert a
reset signal whenever the VCC supply voltage declines
below a preset threshold, keeping it asserted for at
least 140ms after VCC has risen above the reset
threshold. Reset thresholds suitable for operation with
a variety of supply voltages are available.
Manual Reset Input
4-Pin SOT-143 and 5-Pin SC-70 Package
2% Threshold Accuracy
The G693L has an open-drain output stage, while the
G692 have push-pull outputs. The G693L's open-drain
RESET output requires a pull-up resistor that can be
connected to a voltage higher than VCC.
Applications
The G692L have an active-low RESET output, while
the G692H has an active-high RESET output. The re-
set comparator is designed to ignore fast transients on
VCC, and the outputs are guaranteed to be in the cor-
rect logic state for VCC down to 1V.
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable / Battery-Powered Equipment
Automotive
Low supply current makes the G692/G693 ideal for use
in portable equipment. The G692/G693 are available in
a 4-pin SOT-143 and 5-Pin SC-70 packages.
Ordering Information
ORDER NUMBER
ORDER NUMBER
TEMP. RANGE
PACKAGE
(Pb free)
G692HxxxTCU
G692LxxxTCU
G692HxxxTCUf
G692LxxxTCUf
G693LxxxTCUf
G692HxxxTAUf
G692LxxxTAUf
G693LxxxTAUf
-40°C~+105°C
-40°C~+105°C
-40°C~+105°C
-40°C~+105°C
-40°C~+105°C
-40°C~+105°C
SOT-143
SOT-143
SOT-143
SC-70-5
SC-70-5
SC-70-5
G693LxxxTCU
G692HxxxTAU
G692LxxxTAU
G693LxxxTAU
xxx specifies the threshold
e.g. 263 denotes voltage the 2.64V threshold voltage.
Pin Configuration
Typical Application Circuit
G692/G693
G692/G693
VCC
4
3
1
5
4
VCC
MR
GND
GND
VCC
GND
VCC
1
2
RPULL-UP
*
2
3
µP
RESET
INPUT
G692/G693
RESET
MR
(RESET)
VCC
MR
RESET
RESET
GND
(RESET)
(RESET)
GND
SC-70-5
SOT-143
*G693 ONLY
()is for G692H
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
May 19, 2006
1
Global Mixed-mode Technology Inc.
G692/G693
Selector Guide
ORDER
NUMBER
ORDER NUMBER
(Pb free)
RESET
THRESHOLD (V)
OUTPUT TYPE
TOP MARK
G693L463TCU
G693L438TCU
G693L400TCU
G693L308TCU
G693L293TCU
G693L263TCU
G693L463TCUf
G693L438TCUf
G693L400TCUf
G693L308TCUf
G693L293TCUf
G693L263TCUf
4.60
4.32
3.96
3.10
2.91
2.64
693Fx
693Ex
693Dx
693Cx
693Bx
693Ax
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
G692H463TCU
G692H438TCU
G692H400TCU
G692H308TCU
G692H293TCU
G692H263TCU
G692H463TCUf
G692H438TCUf
G692H400TCUf
G692H308TCUf
G692H293TCUf
G692H263TCUf
4.60
4.32
3.96
3.10
2.91
2.64
692Lx
692Kx
692Jx
692Ix
692Hx
692Gx
G692L463TCU
G692L438TCU
G692L400TCU
G692L308TCU
G692L463TCUf
G692L438TCUf
G692L400TCUf
G692L308TCUf
G692L293TCUf
G692L263TCUf
4.60
4.32
3.96
3.10
2.91
2.64
692Fx
692Ex
692Dx
692Cx
692Bx
692Ax
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
G692L293TCU
G692L263TCU
Note: TC: SOT-143
Selector Guide
ORDER
NUMBER
ORDER NUMBER
(Pb free)
RESET
THRESHOLD (V)
OUTPUT TYPE
TOP MARK
G693L463TAU
G693L438TAU
G693L400TAU
G693L308TAU
G693L293TAU
G693L263TAU
G693L463TAUf
G693L438TAUf
G693L400TAUf
G693L308TAUf
G693L293TAUf
G693L263TAUf
4.60
4.32
3.96
3.10
2.91
2.64
63Fx
63Ex
63Dx
63Cx
63Bx
63Ax
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Open-DrainRESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
G692H463TAU
G692H438TAU
G692H400TAU
G692H308TAU
G692H293TAU
G692H263TAU
G692H463TAUf
G692H438TAUf
G692H400TAUf
G692H308TAUf
G692H293TAUf
G692H263TAUf
4.60
4.32
3.96
3.10
2.91
2.64
62Lx
62Kx
62Jx
62Ix
62Hx
62Gx
G692L463TAU
G692L438TAU
G692L400TAU
G692L308TAU
G692L463TAUf
G692L438TAUf
G692L400TAUf
G692L308TAUf
G692L293TAUf
G692L263TAUf
4.60
4.32
3.96
3.10
2.91
2.64
62Fx
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
Push-Pull RESET
62Ex (692Fx)
62Dx (692Ex)
62Cx (692Cx)
62Bx (692Bx)
62Ax (692Ax)
G692L293TAU
G692L263TAU
Note: TA: SC-70-5
TOP MARK in ( ) is for engineering samples.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
May 19, 2006
2
Global Mixed-mode Technology Inc.
G692/G693
Continuous Power Dissipation (TA = 70°C)
Absolute Maximum Ratings
Terminal Voltage (with respect to GND)
SOT-143 (derate 4mW/°C above 70°C) . . . . . . 320mW
SC-70-5 (derate 4mW/°C above 70°C) . . . . . . .200mW
Operating Temperature Range. . . . . . . .-40°C to 105°C
Storage Temperature Range. . . . . . . . -65°C to +150°C
Reflow Temperature (soldering, 10s) . . . . . . . . . .260°C
VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 6.0V
RESET,RESET (push-pull) . . . . . . -0.3V to (VCC + 0.3V)
RESET (open drain). . . . . . . . . . . . . . . . . . -0.3V to 6.0V
Input Current, VCC. . . . . . . . . . . . . . . . . . . . . . . . ...20mA
Output Current, RESET, RESET . . . . . . . . . . . . . 20mA
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 in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Electrical Characteristics
(VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V
for 463/438/400/330 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) (Note 1)
PARAMETER
VCC Range
SYMBOL
CONDITION
TA = 0°C +70°C
MIN TYP MAX UNIT
1.00
1.20
---
---
---
5.5
5.5
25
V
TA = -40°C +105°C
VCC<5.5V, G69_ _463/438/400/330_
VCC<3.6V, G69_ _308/293/263_
G69_ _463_
16.5
13.9
ICC
µA
Supply Current
---
22
4.50 4.60 4.69
4.23 4.32 4.40
3.88 3.96 4.04
3.04 3.10 3.16
2.86 2.91 2.96
2.59 2.64 2.69
G69_ _438_
G69_ _400_
VTH
V
Reset Threshold
G69_ _308_
G69_ _293_
G69_ _263_
Reset Threshold Tempco
VCC to Reset Delay (Note 2)
---
---
70
15
---
---
ppm/°C
VCC = VTH to (VTH – 100mV)
VCC = VTH max, G69_ _ 463/438/400
VCC = VTH max, G69_ _308/293/263
230
230
390
370
510
510
Reset Active Timeout Period
ms
tMR
---
---
10
---
---
µs
MR Minima Pulse Width
100
ns
MR Glitch Immunity (Note 3)
MR to Reset Propagation Delay
(Note 2)
tMD
---
0.5
---
µs
VIH
VIL
0.6VCC 0.7VCC ---
--- 0.2VCC 0.3VCC
V
CC > VTH(max)
V
MR Input Threshold
10
21
30
KΩ
MR Pull-up Resistance
RESET Output Current Low
(push-pull active low, and open-
drain active-low, G692L and G693L)
VCC = 2.5V, V RESET = 0.5V
IOL
8
---
---
mA
mA
mA
VCC = 5V, V RESET = 4.5V, G692L463/438/400
VCC = 3.3V, V RESET = 2.8V, G692L308/293
4.5
3
---
---
---
---
RESET Output Current High
(push-pull active low, G692L)
IOH
V
CC = 3V, V RESET = 2.5V, G692L263
2
---
---
---
---
---
---
---
---
VCC = 5V, VRESET = 0.5V, G692H463/438/400
VCC = 3.3V, VRESET = 0.5V, G692H308/293
VCC = 3V, VRESET = 0.5V, G692H263
16
12
10
RESET Output Current Low
(push-pull active high, G692H)
IOL
RESET Output Current High
(push-pull active high, G692H)
IOH
VCC = 2.5V, VRESET = 2V
2
---
---
mA
RESET Open-Drain Output Leakage
Current (G693L)
---
---
1
µA
VCC > VTH, RESET deasserted
Note 1: Production testing done at TA = +25°C; limits over temperature guaranteed by design.
Note 2:RESET output is for G692L/G693L; While RESET output is for G692H.
Note 3: “Glitches” of 100ns or less typically will not generate a reset pulse.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
May 19, 2006
3
Global Mixed-mode Technology Inc.
G692/G693
Typical Operating Characteristics
(VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V
for 463/438/400 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.)
Supply Current vs.Temperature
(No Load)
Power-down Reset Delay vs. Temperature
(G69_ _308/293/263)
20
15
10
5
80
70
60
50
40
30
20
10
0
G69_ _ 463/438/400, VCC=5V
VOD=20mV
VOD=VTH-VCC
G69_ _ 308/293/263, VCC=3.3V
G69_ _ 463/438/400/308/293/263, VCC=1V
VOD=125mV
VOD=200mV
0
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
Temperature (oC)
Temperature(oC)
Power-up Reset Timeout
vs. Temperature
Normalized Reset Threshold
vs. Temperature
330
325
320
315
310
305
1.006
1.004
1.002
1
0.998
0.996
0.994
0.992
0.99
G69_ _ 308/293/263
0.988
0.986
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
Temperature (oC)
Temperature(oC)
Recommended Minimum Footprint
SOT-143
SC-70-5
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
May 19, 2006
4
Global Mixed-mode Technology Inc.
G692/G693
Pin Description
PIN
NAME
FUNCTION
SOT-143 SC-70-5
1
1,2
GND
Ground
RESET Output remains low while VCC is below the reset threshold, and for at least
140ms after VCC rises above the reset threshold.
RESET Output remains high while VCC is below the reset threshold, and for at least
140ms after VCC rises above the reset threshold.
RESET
(G693L/G692L)
RESET
2
3
(G692H)
Manual Reset Input. A logic low on MR asserts reset. Reset remains asserted as long
as MR is low and for at least 140ms afterMR returns high, This active-low input has
an internal 20kΩ pull- up resistor. It can be driven from a TTL or CMOS-logic line, or
shorted to ground with a switch. Leave open if unused.
3
4
5
4
MR
VCC
Supply Voltage (+5V, +3.3V, +3.0V)
Detailed Description
600
A microprocessor's (µP's) reset input starts the µP in a
known state. The G693L/G692L/G692H assert reset to
prevent code-execution errors during power-up,
power-down, or brownout conditions. They assert a
reset signal whenever the VCC supply voltage declines
below a preset threshold, keeping it asserted for at
least 140ms after VCC has risen above the reset
threshold. The G693L uses an open-drain output, and
the G692L/G692H have a push-pull output stage. Con-
500
400
300
200
100
0
nect a pull-up resistor on the G693L's RESET output to
any supply between 0 and 5.5V.
G69__308/293/263
The manual reset input (MR ) can also initiate a reset.
See the Manual Reset Input Section.
1
10
100
1000
Reset Comparator Overdrive, VTH-VCC (mV)
Manual Reset Input
Many µP-based products require manual reset capabil-
ity, allowing the operator, a test technician, or external
Figure1. Maximum Transient Duration without
Causing a Reset Pulse vs. Reset Com-
parator Overdrive
logic circuitry to initiate a reset. A logic low on MR as-
serts reset. Reset remains asserted while MR is low,
and for the Reset Active Timeout Period (tRP) after
VCC
MR returns high. This input has an internal 20kΩ
pull-up resistor, so it can be left open if it is not used.
MR can be driven with TTL or CMOS-logic levels, or
with open-drain / collector outputs. Connect a normally
G692
RESET
open momentary switch from MR to GND to create a
manual-reset function; external debounce circuitry is
R1
100k
GND
not required. If MR is driven from long cables or if the
device is used in a noisy environment, connecting a
0.1µF capacitor from MR to ground provides additional
noise immunity.
Figure2. RESET Valid to VCC = Ground Circuit
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
May 19, 2006
5
Global Mixed-mode Technology Inc.
G692/G693
Applications Information
Negative-Going VCC Transients
In addition to issuing a reset to the µP during power-up,
power-down, and brownout conditions, the G693L/
G692H/G692L are relatively immune to short-duration
negative-going VCC transients (glitches).
+5.0V
+3.3V
VCC
VCC
RPULL-UP
5V SYSTEM
Figure1 shows typical transient duration vs. reset
comparator overdrive, for which the G693L/G692H/
G692L do not generate a reset pulse. The graph was
generated using a negative-going pulse applied to VCC,
starting 0.5V above the actual reset threshold and
ending below it by the magnitude indicated (reset
comparator overdrive). The graph indicates the maxi-
mum pulse width a negative-going VCC transient can
have without causing a reset pulse. As the magnitude
of the transient increases (goes farther below the reset
threshold), the maximum allowable pulse width de-
creases. Typically, for the G69_ _463 and G69_ _438,
a VCC transient that goes 100mV below the reset
threshold and lasts 15µs or less will not cause a reset
pulse. A 0.1µF bypass capacitor mounted as close as
possible to the VCC pin provides additional transient
immunity.
G693
RESET
INPUT
RESET
GND
GND
Figure4. G693L Open-Drain RESET Output Allows
Use with Multiple Supplies
Interfacing to µPs with Bidirectional Reset Pins
Since the RESET output on the G693L is open drain,
this device interfaces easily with µPs that have bidirec-
tional reset pins, such as the Motorola 68HC11. Con-
necting the µP supervisor's RESET output directly to
the microcontroller’s (µC's) RESET pin with a single
pull-up resistor allows either device to assert reset
(Figure 3).
Ensuring a Valid Reset Output Down to VCC = 0
When VCC falls below 1V, the G692 RESET output no
longer sinks current — it becomes an open circuit.
Therefore, high-impedance CMOS logic inputs con-
G693L Open-Drain RESET Output Allows Use with
Multiple Supplies
nected to RESET can drift to undetermined voltages.
This presents no problem in most applications since
most µP and other circuitry is inoperative with VCC be-
Generally, the pull-up connected to the G693L will
connect to the supply voltage that is being monitored at
the IC’s VCC pin. However, some systems may use the
open-drain output to level-shift from the monitored sup-
ply to reset circuitry powered by some other supply
(Figure 4). Note that as the G693L's VCC decreases
below 1V, so does the IC’s ability to sink current at
low 1V. However, in applications where RESET must
be valid down to 0V, adding a pull-down resistor to
RESET causes any stray leakage currents to flow to
ground, holding RESET low (Figure 2). R1's value is
not critical; 100kΩ is large enough not to load RESET
and small enough to pull RESET to ground.
RESET . Also, with any pull-up, RESET will be pulled
high as VCC decays toward 0. The voltage where this
occurs depends on the pull-up resistor value and the
voltage to which it is connected.
A 100kΩ pull-up resistor to VCC is also recommended
for the G693L if RESET is required to remain valid for
V
CC < 1V.
Benefits of Highly Accurate Reset Threshold
Most µP supervisor ICs have reset threshold voltages
between 5% and 10% below the value of nominal sup-
ply voltages. This ensures a reset will not occur within
5% of the nominal supply, but will occur when the sup-
ply is 10% below nominal.
VCC
VCC
VCC
RPULL-UP
µP
G693
When using ICs rated at only the nominal supply ±5%,
this leaves a zone of uncertainty where the supply is
between 5% and 10% low, and where the reset may or
may not be asserted.
RESET MOTOROLA
RESET
INPUT
68HCXX
GND
GND
The G69_ _463/G69_ _308 use highly accurate circuitry
to ensure that reset is asserted close to the 5% limit,
and long before the supply has declined to 10% below
nominal.
Figure3. Interfacing to µPs with Bidirectional Reset I/O
TEL: 886-3-5788833
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Ver: 1.7
May 19, 2006
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Global Mixed-mode Technology Inc.
G692/G693
Package Information
D
e1
C
L
E
E1
bx3
e2
A
A2
A1
b1
SOT-143 (TC) Package
DIMENSION IN MILIMETERS
DIMENSION IN INCHS
MIN.
SYMBOL
MIN.
0.95
0.05
0.90
0.37
0.76
0.10
2.80
1.20
2.30
MAX.
1.20
0.10
1.10
0.46
0.89
0.18
3.04
1.40
2.50
MAX.
0.047
0.004
0.043
0.018
0.035
0.007
0.120
0.055
0.098
A
A1
A2
b
0.037
0.002
0.035
0.145
0.030
0.004
0.110
0.047
0.091
b1
C
D
E
E1
e1
e2
L
1.92 BSC.
0.20 BSC.
0.69 REF.
0.75 BSC.
0.078 BSC.
0.27 REF.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
May 19, 2006
7
Global Mixed-mode Technology Inc.
G692/G693
D
e1
e
θ
L
E
E1
0.20
b
c
A1
A
A2
SC-70-5 (TA) Package
DIMENSION IN MM
DIMENSION IN INCH
SYMBOL
MIN.
0.80
0.00
0.80
0.15
0.08
1.90
2.00
1.15
NOM.
-----
MAX.
1.10
0.10
1.00
0.30
0.25
2.15
2.20
1.35
MIN.
0.031
0.000
0.031
0.006
0.003
0.075
0.078
0.045
NOM.
-----
MAX.
0.043
0.004
0.040
0.012
0.010
0.085
0.087
0.053
A
A1
A2
b
-----
-----
0.90
0.035
-----
-----
c
-----
-----
D
2.10
0.083
0.083
0.049
0.0256 BSC
0.0512 BSC
0.014
-----
E1
E
2.10
1.25
e
0.65 BSC
1.30 BSC
0.36
e1
L
0.26
0.46
0.010
0.018
θ
0°
-----
8°
0°
8°
Taping Specification
PACKAGE
SOT-143
Q'TY/REEL
3,000 ea
SC-70-5
3,000 ea
Feed Direction
SOT-143 Package Orientation
Feed Direction
SC-70-5 Package Orientation
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
May 19, 2006
8
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