MAX6756UKRD0+T [MAXIM]
Power Supply Support Circuit, Adjustable, 1 Channel, +3VV, BICMOS, PDSO5, LEAD FREE, MO-178AA, SOT-23, 5 PIN;型号: | MAX6756UKRD0+T |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | Power Supply Support Circuit, Adjustable, 1 Channel, +3VV, BICMOS, PDSO5, LEAD FREE, MO-178AA, SOT-23, 5 PIN 信息通信管理 光电二极管 |
文件: | 总18页 (文件大小:1078K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
General Description
Benefits and Features
● Single/Dual-Supply Voltage Monitors
The MAX6754–MAX6764 low-power window detec-
tors monitor undervoltage/overvoltage conditions on
system power supplies. These devices assert when the
monitored voltage is under the undervoltage and/or over
the overvoltage thresholds.
● Factory-Trimmed Window Threshold Options for 5V,
3.3V, 3V, 2.5V, 1.8V, 1.5V, 1.2V, and 0.9V Supplies
● Externally Adjustable Window Monitoring Options for
Supplies Down to 0.5V
The MAX6754–MAX6759/MAX6763/MAX6764 monitor
a single voltage. The MAX6760/MAX6761/MAX6762
monitor dual-voltage systems. The MAX6754/MAX6755/
MAX6756 provide a single undervoltage/overvoltage
output and the MAX6757–MAX6764 provide independent
undervoltage and overvoltage outputs. The outputs are
available in push-pull or open-drain configurations.
● Selectable Window Threshold Options (±5%, ±10%, ±15%)
● Single (Combined UV/OV) or Dual (Separate UV and
OV) Outputs
● 20μs (typ) or 100ms (min) Timeout Period Options
(MAX6754–MAX6762)
● Manual Reset Input (MAX6754–MAX6762)
● Latched Overvoltage Output Function
The MAX6754–MAX6762 offer factory-fixed voltage
thresholds for monitoring system voltages from 0.9V to
5V with a selectable ±5%, ±10%, or ±15% window voltage.
The MAX6763/MAX6764 allow for externally adjustable
thresholds. The MAX6754–MAX6762 are available in
two delay-timing options (20μs, typ or 100ms, min). The
MAX6760/MAX6761/MAX6762 also include a latched
overvoltage output function and the MAX6754–MAX6762
include a manual reset input.
(MAX6760/MAX6761/MAX6762)
● Immune to Short Voltage Transients
● Low 10μA Supply Current
● Low-Voltage Operation (Outputs Valid for VCC
Down to 1V)
● -40°C to +125°C Operating Temperature Range
● Small SOT23 and TDFN Packages
● AEC-Q100 Qualified (/V Parts Only, Refer to
Ordering Information)
This family of products is available in small SOT23 and
TDFN packages, and is specified over the extended
temperature range of -40°C to +125°C.
Typical Application Circuit
Applications
● Telecommunications
● Networking
V
CC
● Computers/Servers
● Data Storage
µP
MAX6757
● Power Metering
● DC-DC Converter Modules
● Automotive
V
SET
OV
CC
GND
NMI
MR
UV
RESET
Pin Configurations appear towards end of data sheet.
Ordering Information appears at end of data sheet.
19-3075; Rev 10; 11/17
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Absolute Maximum Ratings
(Voltages with respect to GND.)
Operating Temperature Range...............................-40°C to +125°C
V
, V
, ................................................................ -0.3V to +6.5V
+ 0.3V)
Junction Temperature ............................................................+150°C
Storage Temperature Range ..................................-65°C to +150°C
Lead Temperature (soldering, 10s) .......................................+300°C
Soldering Temperature (reflow)
Lead(Pb)-Free Package ....................................................+260°C
Containing Lead(Pb)..........................................................+240°C
CC CC2
SET, OVLATCH, MR, UVIN, OVIN.................-0.3V to (V
CC
UV, RESET, OV (open drain).................................... -0.3V to +6.5V
RESET, OV, UV, UV, RESET (push-pull) ......-0.3V to (V + 0.3V)
CC
Input/Output Current (all pins) ..................................................20mA
Continuous Power Dissipation (T = +70°C)
A
5-Pin SOT23-5 (derate 7.1mW/°C above T = +70°C)... 571mW
A
6-Pin SOT23-6 (derate 8.7mW/°C above T = +70°C)... 696mW
A
8-Pin TDFN (derate 24.4mW/°C above T = +70°C).... 1951mW
A
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
(V
= 1.0V to 6.0V, V
= 0 to 6.0V (MAX6760–MAX6762), T = -40°C to +125°C, unless otherwise noted. Typical values are at
CC
CC2 A
T
= +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER REQUIREMENTS
(Note 2)
1.0
1.4
6.0
6.0
Operating Voltage Range
V
V
MAX6760TAAA/MAX6761TAAA/
MAX6762TAAA/MAX6763/MAX6764UT-T
CC
V
V
V
= 3.6V, MAX6754–MAX6759, no load
= 3.6V, MAX6763/MAX6764, no load
13
10
30
23
CC
CC
CC
V
V
Supply Current
I
µA
CC
CC
= 3.6V, V
≥ V
,
CC
CC2
13
1
30
1.5
+20
MAX6760/MAX6761/MAX6762, no load
V
= 1.8V, V ≥ V
,
CC2
CC2
CC
Supply Current
µA
nA
CC2
MAX6760/MAX6761/MAX6762
I
CC2
V
(MAX6760–MAX6762TA_AD_)
CC2
Adjustable Bias Current
-20
(Note 3)
V
THRESHOLD
CC
V
= V
5.750
5.500
5.250
3.795
3.630
3.465
3.450
3.300
3.150
2.875
2.750
2.625
2.070
1.980
1.890
5.875
5.625
5.375
3.878
3.713
3.548
3.525
3.375
3.225
2.938
2.813
2.688
2.115
2.025
1.935
6.000
5.750
5.500
3.960
3.795
3.630
3.600
3.450
3.300
3.000
2.875
2.750
2.160
2.070
1.980
SET
SB
L, 5V
SET = V
CC
SET = GND
= V
V
SET
SB
T, 3.3V
SET = V
CC
SET = GND
= V
SB
V
T
= -40°C to
SET
A
V
Overvoltage Threshold
OV
+125°C, rising R, 3.0V
SET = V
CC
V
CC
TH
V
CC
SET = GND
= V
V
SET
SB
Z, 2.5V
W, 1.8V
SET = V
CC
SET = GND
= V
V
SET
SB
SET = V
CC
SET = GND
Maxim Integrated
│ 2
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(V
= 1.0V to 6.0V, V
= 0 to 6.0V (MAX6760–MAX6762), T = -40°C to +125°C, unless otherwise noted. Typical values are at
CC
CC2 A
T
= +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
= V
MIN
TYP
MAX
4.250
4.500
4.750
2.805
2.970
3.135
2.550
2.700
2.850
2.125
2.250
2.375
1.530
1.620
1.710
3.960
3.795
3.630
3.600
3.450
3.300
3.000
2.875
2.750
2.160
2.070
1.980
1.800
1.725
1.650
1.440
1.380
1.320
1.080
1.035
0.990
0.511
0.489
0.468
UNITS
V
4.000
4.250
4.500
2.640
2.805
2.970
2.400
2.550
2.700
2.000
2.125
2.250
1.440
1.530
1.620
3.795
3.630
3.465
3.450
3.300
3.150
2.875
2.750
2.625
2.070
1.980
1.890
1.725
1.650
1.575
1.380
1.320
1.260
1.035
0.990
0.945
0.489
0.468
0.447
4.125
4.375
4.625
2.723
2.888
3.053
2.475
2.625
2.775
2.063
2.188
2.313
1.485
1.575
1.665
3.878
3.713
3.548
3.525
3.375
3.225
2.938
2.813
2.688
2.115
2.025
1.935
1.763
1.688
1.613
1.410
1.350
1.290
1.058
1.013
0.968
0.500
0.479
0.457
SET
SB
L, 5V
SET = V
CC
SET = GND
= V
V
SET
SB
T, 3.3V SET = V
CC
SET = GND
= V
SB
V
SET
T
= -40°C
A
V
Undervoltage Threshold
UV
to +125°C, R, 3.0V SET = V
V
CC
TH
CC
falling V
CC
SET = GND
= V
V
SET
SB
Z, 2.5V SET = V
CC
SET = GND
= V
V
SET
SB
W, 1.8V SET = V
CC
SET = GND
= V
V
SET
SB
T, 3.3V SET = V
CC
SET = GND
= V
V
SET
SB
R, 3.0V SET = V
CC
SET = GND
= V
V
SET
SB
Z, 2.5V SET = V
CC
SET = GND
= V
V
SET
SB
W, 1.8V SET = V
CC
T
= -40°C
A
SET = GND
= V (Note 2)
V
Overvoltage Threshold
OV
to +125°C,
rising V
V
CC2
TH2
V
SET
SB
CC2
I, 1.5V SET = V
(Note 2)
CC
SET = GND (Note 2)
= V (Note 2)
V
SET
SB
G, 1.2V SET = V
(Note 2)
CC
SET = GND (Note 2)
= V (Note 2)
V
SET
SB
E, 0.9V SET = V
(Note 2)
CC
SET = GND (Note 2)
= V
V
SET
SB
ADJ
SET = V
CC
SET = GND
Maxim Integrated
│ 3
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(V
= 1.0V to 6.0V, V
= 0 to 6.0V (MAX6760–MAX6762), T = -40°C to +125°C, unless otherwise noted. Typical values are at
CC
CC2 A
T
= +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
= V
MIN
TYP
2.723
2.888
3.053
2.475
2.625
2.775
2.063
2.188
2.313
1.485
1.575
1.665
1.238
1.313
1.388
0.990
1.050
1.110
0.743
0.788
0.833
0.351
0.372
0.394
0.7
MAX
2.805
2.970
3.135
2.550
2.700
2.850
2.125
2.250
2.375
1.530
1.620
1.710
1.275
1.350
1.425
1.020
1.080
1.140
0.765
0.810
0.855
0.362
0.383
0.404
UNITS
V
2.640
2.805
2.970
2.400
2.550
2.700
2.000
2.125
2.250
1.440
1.530
1.620
1.200
1.275
1.350
0.960
1.020
1.080
0.720
0.765
0.810
0.340
0.362
0.383
SET
SB
T, 3.3V SET = V
CC
SET = GND
= V
V
SET
SB
R, 3.0V SET = V
CC
SET = GND
= V
V
SET
SB
Z, 2.5V SET = V
CC
SET = GND
= V
V
SET
SB
W, 1.8V SET = V
CC
T
= -40°C
A
SET = GND
= V (Note 2)
to +125°C,
falling
V
V
Undervoltage Threshold
UV
V
CC2
TH2
V
SET
SB
CC2
I, 1.5V SET = V
(Note 2)
CC
SET = GND (Note 2)
= V (Note 2)
V
SET
SB
G, 1.2V SET = V
(Note 2)
CC
SET = GND (Note 2)
= V (Note 2)
V
SET
SB
E, 0.9V SET = V
(Note 2)
CC
SET = GND (Note 2)
= V
V
SET
SB
ADJ
SET = V
CC
SET = GND
Threshold Hysteresis
V
V
, V
%
HYST
CC CC2
UNDERVOLTAGE/OVERVOLTAGE INPUTS (UVIN, OVIN) (MAX6763/MAX6764)
UVIN, OVIN Threshold Voltage
UVIN, OVIN Input Bias Current
V
0.485
-20
0.5
0.7
0.515
+20
V
TH-IN
I
(Note 3)
nA
IN
UVIN, OVIN Threshold
Hysteresis
V
%
HYST
Maxim Integrated
│ 4
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(V
= 1.0V to 6.0V, V
= 0 to 6.0V (MAX6760–MAX6762), T = -40°C to +125°C, unless otherwise noted. Typical values are at
CC
CC2 A
T
= +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS
D0
D3
20
µs
Reset and UV Timeout Period
t
Figure 7
/V
RP
100
185
320
ms
V
falling at 10mV/µs from
CC CC2
V
to Reset Delay
to UV Delay
t
20
20
µs
µs
CC
CC
D-RESET
UV + 100mV to UV - 100mV
TH
TH
V
/V
rising at 10mV/µs from
CC CC2
V
t
D-UV
OV - 100mV to OV + 100mV
TH
TH
V
/V
rising at 10mV/µs from
CC CC2
V
to OV Delay
t
OV - 100mV to OV + 100mV
20
µs
CC
D-OV
TH
TH
(MAX6757–MAX6762 only)
UVIN to UV Delay
OVIN to OV Delay
Startup Delay Time
(MAX6763/MAX6764)
20
20
2
µs
µs
(MAX6763/MAX6764)
t
ms
D0 options only, OV output (Note 4)
START
THRESHOLD WINDOW SELECT INPUT (SET)
Input-Voltage Low
0
0.1
V
V
V
= 1.4V
= 3.0V
= 6.0V
0.65
0.81
1.10
0.75
2.19
4.90
CC
CC
CC
Input Bias Voltage
(Note 5)
V
V
V
SB
Input-Voltage High
Input Current
V
- 0.1
V
V
CC
CC
I
-1
+1
µA
SET
MANUAL RESET (MR)
0.23 x
Input-Voltage Low
V
V
V
CC
0.6 x
Input-Voltage High
V
CC
Pullup Resistance to V
Minimum Pulse Width
Transient Immunity
26
kΩ
µs
ns
CC
4
300
300
40
t
t
MR falling, Figure 7
MR rising, Figure 7
D-MR
ns
Propagation Delay
D0
D3
MR_P
100
185
320
ms
OVERVOLTAGE OUTPUT LATCH CONTROL INPUT (OVLATCH)
0.3 x
Input-Voltage Low
V
V
V
CC
0.7 x
Input-Voltage High
V
CC
Maxim Integrated
│ 5
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(V
= 1.0V to 6.0V, V
= 0 to 6.0V (MAX6760–MAX6762), T = -40°C to +125°C, unless otherwise noted. Typical values are at
CC
CC2 A
T
= +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Bias Current
I
-1
+1
µA
OVLATCH
RESET, RESET, UV, UV, OV
Any V
output asserted
≥ 1.0V, I
= 100µA,
= 200µA,
= 1.0mA,
CC
SINK
0.3
0.3
0.3
0.3
0.3
Any V ≥ 1.2V, I
CC
SINK
output asserted
Any V ≥ 1.71V, I
RESET, UV Output Low (Open
Drain or Push-Pull)
CC
SINK
V
V
OL
output asserted
Any V ≥ 2.85V, I
output asserted
= 2.0mA,
= 4.0mA,
SINK
CC
SINK
Any V ≥ 4.75V, I
CC
output asserted
Any V ≥ 1.71V, I
output deasserted
= 0.8mA,
= 2.0mA,
= 4.0mA,
0.8 x
V
CC
CC
SOURCE
SOURCE
SOURCE
Any V ≥ 2.85V, I
0.8 x
RESET, UV Output High
(Push-Pull)
CC
V
V
V
OH
output deasserted
V
CC
Any V ≥ 4.75V, I
0.8 x
CC
output deasserted
V
CC
Any V ≥ 1.71V, I
= 1.0mA,
CC
SINK
SINK
0.3
0.3
0.3
output deasserted
RESET, UV Output Low
(Push-Pull)
Any V ≥ 2.85V, I
= 2.0mA,
= 4.0mA,
CC
V
OL
output deasserted
Any V ≥ 4.75V, I
CC
SINK
output deasserted
Any V ≥ 1.0V, I
= 50µA,
0.8 x
CC
SOURCE
output asserted
V
CC
Any V ≥1.2V, I
= 100µA,
0.8 x
CC
SOURCE
output asserted
V
CC
RESET, UV Output High
(Push-Pull)
Any V ≥ 1.71V, I
output asserted
= 0.8mA,
= 2.0mA,
= 4.0mA,
0.8 x
V
CC
CC
SOURCE
SOURCE
SOURCE
V
V
OH
Any V ≥ 2.85V, I
0.8 x
V
CC
CC
output asserted
Any V ≥ 4.75V, I
0.8 x
CC
output asserted
V
CC
Maxim Integrated
│ 6
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Electrical Characteristics (continued)
(V
= 1.0V to 6.0V, V
= 0 to 6.0V (MAX6760–MAX6762), T = -40°C to +125°C, unless otherwise noted. Typical values are at
CC
CC2 A
T
= +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Any V
output asserted
≥ 1.98V, I
= 1.4mA,
CC
SINK
SINK
SINK
0.3
Any V ≥ 2.75V, I
= 2.0mA,
= 3.0mA,
CC
0.3
0.3
0.3
OV Output Low
(Open-Drain or
Push-Pull)
output asserted
V
V
OL
Any V ≥ 3.63V, I
CC
output asserted
Any V ≥ 5.5V, I
= 4.0mA,
SINK
CC
output asserted
Any V ≥ 1.0V, I
= 50µA,
0.8 x
CC
SOURCE
output deasserted
V
CC
Any V ≥ 1.2V, I
= 100µA,
0.8 x
CC
SOURCE
output deasserted
V
CC
Any V ≥ 1.98V, I
output deasserted
= 1.4mA,
= 2.0mA,
= 3.0mA,
0.8 x
V
CC
CC
SOURCE
SOURCE
SOURCE
OV Output High
(Push-Pull)
V
V
OH
Any V ≥ 2.75V, I
0.8 x
V
CC
CC
output deasserted
Any V ≥ 3.63V, I
0.8 x
CC
output deasserted
V
CC
Any V ≥ 5.5V, I
= 4.5mA,
SOURCE
0.8 x
CC
output deasserted
V
CC
RESET, UV, OV Output Open-
Drain Leakage Current
I
Output not asserted
1
µA
LKG
Note 1: Devices are production tested at +25°C. Overtemperature limits are guaranteed by design.
Note 2: Voltage monitoring requires that V must be greater than or equal to 1.4V, but outputs remain asserted in the correct state
CC
for V
down to 1.0V.
CC
Note 3: Guaranteed by design.
Note 4: For D0 window detector options and OV outputs, startup delay time is the time required for the internal reference/circuitry to
reach specified accuracy after the monitor is powered up from GND.
Note 5: The input bias voltage is based off of V . The minimum value is given by the equation (0.1 x V
+ 0.51)V and the
CC
CC
maximum value is given by (0.9 x V
- 0.51)V.
CC
Maxim Integrated
│ 7
www.maximintegrated.com
Low-Power, Single/Dual-Voltage Window Detectors
MAX6754–MAX6764
Typical Operating Characteristics
(V
= 5V, V
= 3.3V, T = +25°C, unless otherwise noted.)
CC
CC2 A
OVERVOLTAGE THRESHOLD
vs. TEMPERATURE
UNDERVOLTAGE THRESHOLD
vs. TEMPERATURE
TRANSIENT IMMUNITY
vs. THRESHOLD OVERDRIVE
1.03
1.03
1.02
1.01
1.00
0.99
0.98
0.97
1000
100
10
1.02
1.01
1.00
0.99
0.98
0.97
UNDERVOLTAGE THRESHOLD RISING
UNDERVOLTAGE THRESHOLD FALLING
OUTPUT ASSERTS
ABOVE THIS LINE
OVERVOLTAGE THRESHOLD RISING
OVERVOLTAGE THRESHOLD FALLING
NORMALIZED TO RISING
NORMALIZED TO FALLING
THRESHOLD AT T = +25°C
THRESHOLD AT T = +25°C
A
A
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
1
10
100
1000
TEMPERATURE (°C)
TEMPERATURE (°C)
OVERDRIVE (mV)
D3 TIMEOUT PERIOD
vs. TEMPERATURE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
20
18
16
14
12
10
8
194
192
190
188
186
184
182
180
T
A
T
A
T
A
T
A
= +125°C
= +85°C
= +25°C
= -40°C
6
1
2
3
4
5
6
-40 -25 -10
5
20 35 50 65 80 95 110 125
V
CC
(V)
TEMPERATURE (°C)
OUTPUT-VOLTAGE LOW
vs. SINK CURRENT
OUTPUT-VOLTAGE HIGH
vs. SOURCE CURRENT
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
V
CC
V
CC
V
CC
V
CC
= 5.0V
= 3.3V
= 2.5V
= 1.8V
V
= 5.0V
CC
V
= 3.3V
CC
V
CC
= 1.8V
V
CC
= 2.5V
0
5
10
(mA)
15
20
0
5
10
15
20
I
I
(mA)
SOURCE
SINK
Maxim Integrated
│ 8
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Pin Configurations
TOP VIEW
1
2
3
4
8
7
6
5
MR
V
CC
V
1
2
3
5
4
SET
CC
OVLATCH
UV (UV)
OV
GND
MAX6760
MAX6761
MAX6762
MAX6754
MAX6755
MAX6756
V
GND
CC2
SET
MR
RESET (RESET)
TDFN
( ) MAX6761 ONLY.
SOT23
( ) MAX6755 ONLY.
V
1
2
3
6
5
4
SET
V
1
6
OVIN
OV
CC
CC
MAX6757
MAX6758
MAX6759
MAX6763
MAX6764
GND
OV
GND
UVIN
2
3
5
4
MR
UV (UV)
UV
SOT23
( ) MAX6758 ONLY.
SOT23
Pin Description
PIN
MAX6754/ MAX6757/ MAX6760/
MAX6755/ MAX6758/ MAX6761/
MAX6756 MAX6759 MAX6762
NAME
FUNCTION
MAX6763/
MAX6764
Power Voltage Input. V
powers the device. V
is the monitored
CC
CC
voltage. Connect V
of the MAX6756 to an RC filter to ensure
CC
1
1
1
–
proper operation during extreme transition events. A 100Ω resistor
in series with a 0.1µF bypass capacitor is sufficient for most
applications. See Figure 9 for more details.
V
CC
—
2
—
2
—
2
1
2
Power Input. V
Ground
powers the device.
CC
GND
Active-Low Manual Reset Input. Drive MR low to assert undervoltage
and reset outputs. The asserted output remains asserted for the
specified propagation delay period after MR goes high. MR is
3
3
8
—
MR
internally pulled up to V
through a 26kΩ resistor.
CC
Reset Output. The Reset Output asserts when V
is below the
CC
selected UV threshold or above the selected OV threshold.
TH
TH
Reset output deasserts after the specified timeout period after V
CC
RESET/
RESET
4
—
—
—
rises above the UV threshold or drops below the OV threshold.
TH TH
MAX6754: Active-low push-pull output (RESET).
MAX6755: Active-high push-pull output (RESET).
MAX6756: Active-low open-drain output (RESET).
Maxim Integrated
│ 9
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Pin Description (continued)
PIN
MAX6754/ MAX6757/ MAX6760/
MAX6755/ MAX6758/ MAX6761/
MAX6756 MAX6759 MAX6762
NAME
FUNCTION
MAX6763/
MAX6764
Threshold Window Select Input. SET configures the undervoltage
and overvoltage window range for the internal detectors. Connect
5
6
4
—
SET
SET to GND for ±5% window, or to V
for ±10% window. Bias SET
CC
to V /2 for a ±15% window.
CC
Undervoltage Output. UV/UV asserts when the monitored supply/
supplies are below the UV thresholds or MR is low. UV/UV
TH
deasserts after the specified timeout period when the monitored
UV/
UV
supply/supplies rise above the UV thresholds or for the specified
propagation delay after MR goes high.
MAX6757/MAX6760: Active-low push-pull output (UV).
MAX6758/MAX6761: Active-high push-pull output (UV).
MAX6759/MAX6762: Active-low open-drain output (UV).
TH
—
—
4
6
3
—
—
V
Voltage Input. Input for the second window voltage monitor,
CC2
—
V
CC2
and device output power supply when V
> V
.
CC2
CC
Active-Low Overvoltage Output. OV asserts low when the monitored
supply/supplies are above their overvoltage threshold (OV ). OV
TH
goes high impedance immediately when the monitored supply/
supplies drop below OV
.
TH
There is no timeout delay period for the OV output.
For MAX6763/MAX6764, OV is low when OVIN is above the internal
0.5V threshold. OV is high when OVIN is below the internal 0.5V
threshold.
5
5
5
OV
MAX6757–MAX6762: Active-low open-drain output.
MAX6763: Active-low push-pull output.
MAX6764: Active-low open-drain output.
Overvoltage Output Latch Control Input. Drive OVLATCH high
to latch the overvoltage output for any V
or V
overvoltage
CC
CC2
condition. Drive OVLATCH low to clear the latch after overvoltage
conditions have been removed. The latch is transparent when
OVLATCH is connected to GND. OVLATCH is a high-impedance
input. Use external pullup or pulldown.
7
—
OVLATCH
Undervoltage Input. UV is low when UVIN is below the internal 0.5V
threshold. UV is high when UVIN is above the internal 0.5V threshold.
—
—
—
—
—
—
3
4
UVIN
Undervoltage Output. UV is low when UVIN is below the internal
0.5V threshold. UV is high when UVIN is above the internal 0.5V
threshold. There is no timeout delay period for the UV output.
UV
Overvoltage Input. OV is low when OVIN is above the internal 0.5V
threshold. OV is high when OVIN is below the internal 0.5V threshold.
—
—
—
—
—
—
6
OVIN
EP
Exposed Pad (TDFN Only). EP is internally connected to GND.
Leave EP unconnected or connect to GND.
—
Maxim Integrated
│ 10
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Functional Diagrams
V
CC
MR
ADJUST
MONITOR
VOLTAGE
(RESET)/
RESET
TIMEOUT
PERIOD
OPTION
UV
TH
UV MONITOR
OV MONITOR
SET
OV
TH
GND
UV THRESHOLD
-5%, -10%, -15%
OV THRESHOLD
+5%, +10%, +15%
MAX6754/MAX6755/MAX6756
INTERNAL
REFERENCE
( ) MAX6755 ONLY.
Figure 1. MAX6754/MAX6755/MAX6756 Functional Diagram
V
CC
ADJUST
MONITOR
VOLTAGE
(UV)/
UV
TIMEOUT
PERIOD
OPTION
UV
OV
TH
UV MONITOR
SET
MR
OV
V
CC
TH
OV MONITOR
GND
UV THRESHOLD
-5%, -10%, -15%
OV THRESHOLD
+5%, +10%, +15%
MAX6757/MAX6758/MAX6759
INTERNAL
REFERENCE
( ) MAX6758 ONLY.
Figure 2. MAX6757/MAX6758/MAX6759 Functional Diagram
Maxim Integrated
│ 11
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Functional Diagrams (continued)
V
MR
CC
ADJUST
MONITOR
VOLTAGE
(UV)/
UV
TIMEOUT
PERIOD
OPTION
UV
TH
UV MONITOR
OV MONITOR
OV
OV
CIRCUIT
OV
TH
SET
UV THRESHOLD
-5%, -10%, -15%
OVLATCH
OV THRESHOLD
+5%, +10%, +15%
INTERNAL
REFERENCE
GND
UV
TH
UV MONITOR
OV MONITOR
ADJUST
MONITOR
VOLTAGE
V
CC2
MAX6760/
MAX6761/MAX6762
OV
TH
( ) MAX6761 ONLY.
Figure 3. MAX6760/MAX6761/MAX6762 Functional Diagram
Maxim Integrated
│ 12
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
and lower voltage thresholds to be set externally (down
to 0.5V). The MAX6754–MAX6762 are available with
two timing options (20μs propagation delay or 100ms
minimum reset timeout).
Functional Diagrams (continued)
MAX6763/MAX6764
UVIN
Supply Voltages
UV
V
CC
is the power-supply input and the monitored volt-
age of the MAX6754–MAX6762. These devices feature
a factory-trimmed V and V divider that sets the
UV
OV
TH
UV MONITOR
CC
CC2
nominal input range (see Table 1 and Table 2). V
for the
CC
INTERNAL
REFERENCE
0.5V
V
GND
CC
MAX6763/MAX6764 is the power supply of the device and
not the monitored voltage. For noisy systems, bypass V
CC
TH
and V
each with a 0.1μF capacitor to GND. Connect
CC2
V
of the MAX6756 to an RC filter to ensure proper
CC
OV
operation during extreme transition events. A 100Ω resis-
tor in series with a 0.1µF bypass capacitor is sufficient for
most applications. See Figure 9 for more details.
OVIN
OV MONITOR
Setting the Adjustable Nominal Voltage
Threshold
Figure 4. MAX6763/MAX6764 Functional Diagram
The MAX6760/MAX6761/MAX6762 (versions with
suffixes LA, TA, RA, ZA, WA, and AA) offer adjustable
Detailed Description
nominal voltage threshold to monitor V
. Use an
CC2
The MAX6754–MAX6764 are low-power window voltage
detectors capable of monitoring undervoltage and
overvoltage conditions on system power supplies.
Whenever a monitored voltage falls below its undervoltage
threshold or exceeds its overvoltage threshold, these
devices assert their outputs to notify the system (see
Functional Diagrams).
external voltage-divider to set the voltage at V
to
CC2
0.4255V. Configure SET to select a monitor window of
±5%, ±10%, or ±15% (see Figure 5). The MAX6760/
MAX6761/MAX6762 suffix AA monitor only V
and do
CC2
not monitor V
.
CC
The MAX6754/MAX6755/MAX6756 are single-voltage
window detectors with internally fixed nominal voltage,
externally adjustable set window, single reset undervoltage/
overvoltage output, and a manual reset input.
0.4255V +5%
+10%
V+
+15%
OV
The MAX6757/MAX6758/MAX6759 are single-voltage
window detectors with internally set nominal voltage,
externally adjustable set window, separate undervoltage/
overvoltage outputs, and manual reset input.
R1
V
CC2
(UV)
R2
The MAX6760/MAX6761/MAX6762 are dual-voltage
window detectors with internally/externally set nominal
voltages, externally adjustable set window, separate
undervoltage/overvoltage outputs, manual reset input, and
overvoltage latch functions.
UV
0.4255V -5%
-10%
-15%
MAX6760/MAX6761/MAX6762
(SUFFIXES LA, TA, RA, ZA, WA, AA)
The MAX6763/MAX6764 are single adjustable window
detectors with separate undervoltage/overvoltage outputs.
( ) MAX6761 ONLY.
The MAX6754–MAX6762 offer factory-fixed voltage
thresholds for monitoring system voltages from 0.9V to
5V. The MAX6754–MAX6762 include a SET function to
select the window voltage to ±5%, ±10%, or ±15%. The
MAX6763/MAX6764 allow for externally adjustable upper
Figure 5. Setting the Threshold Voltage of V
CC2
Maxim Integrated
│ 13
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Overvoltage Latch Control Input (OVLATCH)
The MAX6760/MAX6761/MAX6762 provide an overvoltage
latch control input (OVLATCH). Drive OVLATCH high
V+
R1
to latch the overvoltage output for any V
or V
MAX6763/MAX6764
CC
CC2
UVIN
overvoltage condition. Drive OVLATCH low to clear the
latch after overvoltage conditions have been removed.
The latch is transparent when OVLATCH is connected to
GND. OVLATCH is a high impedance input. Use external
pullup or pulldown.
UV
UV
OV
TH
UV MONITOR
INTERNAL
REFERENCE
0.5V
V
GND
OV
CC
R2
Reset, Undervoltage, and Overvoltage
Outputs (RESET, RESET, UV, UV, OV)
RESET, RESET, UV, UV, and OV outputs assert when
TH
the monitored supply is below the selected UV threshold
TH
or above the selected OV
threshold. The reset output
TH
OVIN
deasserts after the specified timeout period when the
monitored supply rises above the UV threshold or
OV MONITOR
V+ x R3
TH
R3
drops below the OV
are referenced to V
threshold. The push-pull versions
TH
.
OVERVOLTAGE ASSERTS WHEN
UNDERVOLTAGE ASSERTS WHEN
> 0.5V
CC
R1 + R2 + R3
The MAX6760/MAX6761/MAX6762 monitor both V
CC
V+ x (R2 + R3)
R1 + R2 + R3
< 0.5V
and V
. An undervoltage/overvoltage condition on
CC2
either voltage supply asserts the corresponding output.
Figure 6. Setting the Undervoltage/Overvoltage Window
RESET and UV are guaranteed to be in the correct logic
state when V
or V
> 1V.
CC
CC2
Choose R2 to have a resistance of up to 500kΩ.
Calculate R1 by:
R1 = ((V+ - 0.4255V) x R2) / 0.4255V
MR
The MAX6763/MAX6764 provide inputs to a window
detector allowing the programming of the threshold
voltage to within V
(see Figure 6).
t
CC
D-MR
Choose R1, R2, and R3 such that:
(V+ / (R1 + R2 + R3)) ≥ 1μA
t
RESET, UV
MR_P
SET
The MAX6754–MAX6762 allow the setting of the window
voltage range of the voltage detector. Connect SET to
Figure 7a. Manual RESET/RESET Timing Diagram
GND to set a ±5% window. Connect SET to V
for a
CC
±10% window. Bias SET to V
/ 2 for a ±15% window.
CC
Manual Reset (MR)
V
CC
The MAX6754–MAX6762 include an active-low manual
reset input. Drive MR low to assert a reset output
(MAX6754/MAX6755/MAX6756) or an undervoltage output
(MAX6757/MAX6758/MAX6759). The output remains
asserted for the specified propagation delay time (see
Figure 7a and Figure 7b) after MR goes high. MR is inter-
t
D-UV
RESET, UV
t
RP
nally pulled to V
with a 26kΩ resistor.
CC
(RESET IS THE COMPLEMENT OF RESET)
Figure 7b. V /RESET, UV Timing Diagram
CC
Maxim Integrated
│ 14
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
turns the SCR on, blowing the fuse to disconnect the
circuit from the power source. An optional capacitor (C1)
on the gate of the SCR provides additional transient
Applications Information
Microprocessor Monitoring
Figure 8 shows a microprocessor monitoring circuit. An
overvoltage condition on either the core or I/O supply
immunity against nuisance trips.
CORE
DC-DC
CORE
CONVERTER
FUSE
I/O
DC-DC
I/O
CONVERTER
UNREGULATED
POWER SOURCE
mP
MAX6760
V
V
MR
OVLATCH
UV
CC2
PUSH BUTTON
CC
GND
SET
RESET
100kΩ
100kΩ
SCR
OV
NMI
100kΩ
*C1
1mF
*OPTIONAL.
Figure 8. Microprocessor Monitoring
VCC
VCC
100Ω
SET
VCC
VCC
0.1µF
10kΩ
MAX6756
µP
RESET
RESET
NMI
GND
MR
Figure 9. MAX6756 Input Filter Connection
Maxim Integrated
│ 15
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Table 1. Window Threshold Voltage
Table 3. Timeout Period Suffix Guide
Suffix Guide Single Fixed V
(MAX6754—MAX6759)
CC
ACTIVE TIMEOUT PERIOD
TIMEOUT
PERIOD SUFFIX
MIN (ms)
Typ (ms)
0.02
MAX (ms)
PART NO. SUFFIX
V
NOMINAL SYSTEM VOLTAGE (V)
CC
D0
D3
—
—
L
T
5.0
3.3
3.0
2.5
1.8
100
185
320
R
Z
Standard Versions Table
PART
PART
W
MAX6754UKLD0
MAX6754UKLD3
MAX6754UKTD0
MAX6754UKTD3
MAX6754UKZD0
MAX6754UKZD3
MAX6754UKWD0
MAX6754UKWD3
MAX6755UKLD0
MAX6755UKLD3
MAX6755UKTD0
MAX6755UKTD3
MAX6755UKZD0
MAX6755UKZD3
MAX6755UKWD0
MAX6755UKWD3
MAX6756UKLD0
MAX6756UKLD3
MAX6756UKTD0
MAX6756UKTD3
MAX6756UKZD0
MAX6756UKZD3
MAX6756UKWD0
MAX6756UKWD3
MAX6757UTTD0
MAX6757UTTD3
MAX6757UTLD0
MAX6757UTLD3
MAX6757UTZD0
MAX6757UTZD3
MAX6757UTWD0
MAX6757UTWD3
MAX6758UTLD0
MAX6758UTLD3
MAX6758UTTD0
MAX6758UTTD3
MAX6758UTZD0
MAX6758UTZD3
MAX6758UTWD0
MAX6758UTWD3
MAX6759UTLD0
MAX6759UTLD3
MAX6759UTTD0
MAX6759UTTD3
MAX6759UTZD0
MAX6759UTZD3
MAX6759UTWD0
MAX6759UTWD3
MAX6760TALTD3
MAX6760TALAD3
MAX6760TATZD3
MAX6760TATWD3
MAX6760TATAD3
MAX6760TARAD3
MAX6760TAZWD3
MAX6760TAZAD3
MAX6760TAWED3
MAX6760TAWAD3
MAX6761TALTD3
MAX6761TALAD3
MAX6761TATZD3
MAX6761TATWD3
MAX6761TATAD3
MAX6761TARAD3
MAX6761TAZWD3
MAX6761TAZAD3
MAX6761TAWED3
MAX6761TAWAD3
MAX6762TALTD3
MAX6762TALAD3
MAX6762TATZD3
MAX6762TATWD3
MAX6762TATAD3
MAX6762TARAD3
MAX6762TAZWD3
MAX6762TAZAD3
MAX6762TAWED3
MAX6762TAWAD3
MAX6763UT
Table 2. Window Threshold Voltage
Suffix Guide Dual Fixed/Adjustable
(MAX6760/MAX6761/MAX6762)
V
NOMINAL
V
NOMINAL
CC
CC2
PART NO.
SUFFIX
SYSTEM VOLTAGE
SYSTEM VOLTAGE
(V)
(V)
LT
LR
LA
TZ
TW
TI
5
3.3
3.0
5
5
ADJ*
2.5
3.3
3.3
3.3
3.3
3.3
3.3
3.0
3.0
3.0
3.0
3.0
3.0
2.5
2.5
2.5
2.5
2.5
1.8
1.8
1.8
1.8
—
1.8
1.5
TG
TE
TA
1.2
0.9
ADJ*
2.5
RZ
RW
RI
1.8
1.5
RG
RE
RA
ZW
ZI
1.2
0.9
ADJ*
1.8
1.5
ZG
ZE
ZA
WI
WG
WE
WA
AA
1.2
0.9
ADJ*
1.5
1.2
0.9
ADJ*
ADJ*
MAX6764UT
*See the Setting the Adjustable Nominal Voltage Threshold section.
Maxim Integrated
│ 16
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Selector Guide
PUSH-PULL PUSH-PULL OPEN-DRAIN PUSH-PULL PUSH-PULL OPEN-DRAIN PUSH-PULL OPEN-DRAIN
RESET
RESET
RESET
—
—
X
UV
UV
UV
OV
OV
MAX6754
MAX6755
MAX6756
MAX6757
MAX6758
MAX6759
MAX6760
MAX6761
MAX6762
MAX6763
MAX6764
X
—
X
—
—
—
X
—
—
—
—
X
—
—
—
—
—
X
—
—
—
—
—
—
—
—
—
X
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
X
X
X
X
X
X
—
X
—
—
X
—
—
X
—
—
X
—
—
X
—
—
—
—
X
—
—
Ordering Information
Chip Information
PROCESS: BiCMOS
PART
TEMP RANGE PIN-PACKAGE
-40°C to +125°C 5 SOT23-5
-40°C to +125°C 5 SOT23-5
-40°C to +125°C 5 SOT23-5
-40°C to +125°C 5 SOT23-5
-40°C to +125°C 6 SOT23-6
-40°C to +125°C 6 SOT23-6
-40°C to +125°C 6 SOT23-6
-40°C to +125°C 8 TDFN-EP
-40°C to +125°C 8 TDFN-EP
-40°C to +125°C 8 TDFN-EP
-40°C to +125°C 6 SOT23-6
-40°C to +125°C 6 SOT23-6
MAX6754UK_D_-T
MAX6755UK_D_-T
MAX6756UK_D_-T
MAX6756UK_D_/V+T
MAX6757UT_D_-T
MAX6758UT_D_-T
MAX6759UT_D_/V-T
MAX6760TA_ _D_-T
MAX6761TA_ _D_-T
MAX6762TA_ _D_-T
MAX6763UT-T
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
5 SOT23
6 SOT23
8 TDFN
U5+1
U6-1
21-0057
21-0058
21-0137
90-0174
90-0175
90-0059
MAX6764UT-T
T833-2
Devices are available in both leaded and lead(Pb)-free packag-
ing. Specify lead-free by replacing “-T” with “+T” when ordering.
/V denotes an automotive qualified part.
Insert the threshold level suffixes for V
and V
(see Table 1
CC2
CC
and Table 2) after UK, UT, or TA. For the MAX6754–MAX6759,
insert only the V threshold suffix after the UK or UT. Insert
CC
the reset timeout delay (see Table 3) after D to complete the
part number. For example, the MAX6760TALTD3-T provides a
V
threshold of 5V, a V
threshold of 3.3V, and a 100ms
CC
CC2
minimum reset timeout period. Sample stock is generally held
on standard versions only (see the Standard Versions Table).
Standard versions have an order increment requirement of 2500
pieces. Nonstandard versions have an order increment require-
ment of 10,000 pieces. Contact factory for availability.
Maxim Integrated
│ 17
www.maximintegrated.com
MAX6754–MAX6764
Low-Power, Single/Dual-Voltage Window Detectors
Revision History
REVISION REVISION
PAGES
DESCRIPTION
CHANGED
NUMBER
DATE
Added /V to the MAX6759 Ordering Information and added soldering temperature
in the Absolute Maximum Rating section
4
1/11
2, 16
5
6
7
8
10/15
11/15
3/16
Adding /V part number of MAX6756 to data sheet
Updated package code for 5 SOT23 in Ordering Information section
Re-added Standard Versions table
1, 16–18
19
17–18
17–18
6/16
Removed top mark information from Standard Versions table
Moved Ordering Information and Selector Guide to end of data sheet and Pin
Configurations to before Pin Description table; updated Pin Description (row 1),
Supply Voltages section, and added Figure 9
9
3/17
1, 9, 13, 16, 17
1
10
11/17
Added AEC statement to Benefits and Features section
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2017 Maxim Integrated Products, Inc.
│ 18
相关型号:
MAX6756UKTD0+
Power Supply Support Circuit, Adjustable, 1 Channel, +3.3VV, BICMOS, PDSO5, MO-178AA, SOT-23, 5 PIN
MAXIM
MAX6756UKTD3+T
Power Supply Support Circuit, Adjustable, 1 Channel, +3.3VV, BICMOS, PDSO5, SOT-23, 5 PIN
MAXIM
MAX6756UKWD3
Power Supply Support Circuit, Adjustable, 1 Channel, +1.8VV, BICMOS, PDSO5, MO-178AA, SOT-23, 5 PIN
MAXIM
MAX6756UKWD3+T
Power Supply Support Circuit, Adjustable, 1 Channel, +1.8VV, BICMOS, PDSO5, SOT-23, 5 PIN
MAXIM
MAX6756UKWD3-T
Power Supply Support Circuit, Adjustable, 1 Channel, +1.8VV, BICMOS, PDSO5, SOT-23, 5 PIN
MAXIM
MAX6756UKZD3
Power Supply Support Circuit, Adjustable, 1 Channel, +2.5VV, BICMOS, PDSO5, MO-178AA, SOT-23, 5 PIN
MAXIM
©2020 ICPDF网 联系我们和版权申明