MAX6761TALRD3-T [MAXIM]
Power Supply Support Circuit, Adjustable, 2 Channel, +3,5VV, BICMOS, PDSO8, 3 X 3 MM, TDFN-8;
| 型号： | MAX6761TALRD3-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Power Supply Support Circuit, Adjustable, 2 Channel, +3,5VV, BICMOS, PDSO8, 3 X 3 MM, TDFN-8 信息通信管理 光电二极管 |
| 文件： | 总22页 (文件大小：356K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-3075; Rev 2; 4/04
Low-Power, Single/Dual-Voltage Window
Detectors
General Description
Features
The MAX6754–MAX6764 low-power window detectors
monitor undervoltage/overvoltage conditions on system
power supplies. These devices assert when the moni-
tored voltage is under the undervoltage and/or over the
overvoltage thresholds.
♦ Single- or Dual-Supply Voltage Monitors
♦ Factory-Trimmed Window Threshold Options for
5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V, 1.2V, and 0.9V
Supplies
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 indepen-
dent undervoltage and overvoltage outputs. The out-
puts are available in push-pull or open-drain
configurations.
♦ Externally Adjustable Window Monitoring Options
for Supplies Down to 0.5V
♦ 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
The MAX6754–MAX6762 offer factory-fixed voltage
thresholds for monitoring system voltages from 0.9V to
5V with a selectable 5ꢀ% 10ꢀ% or 15ꢀ window volt-
age. 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.
(MAX6754–MAX6762)
♦ Manual Reset Input (MAX6754–MAX6762)
♦ Latched Overvoltage Output Function
(MAX6760/MAX6761/MAX6762)
♦ Immune to Short Voltage Transients
♦ Low 10µA Supply Current
♦ Low-Voltage Operation (Outputs Valid for V
The 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.
CC
Down to 1V)
♦ -40°C to +125°C Operating Temperature Range
♦ Small SOT23 and TDFN Packages
Applications
Telecommunications
Networking
Power Metering
Ordering Information
DC-DC Converter
Modules
PART*
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
5 SOT23-5
5 SOT23-5
5 SOT23-5
6 SOT23-6
6 SOT23-6
Computers/Servers
Data Storage
Automotive
MAX6754UK_D_-T
MAX6755UK_D_-T
MAX6756UK_D_-T
MAX6757UT_D_-T
MAX6758UT_D_-T
Typical Application Circuit
*Note: Insert the threshold level suffixes for V and V
CC
CC2
(Tables 1 and 2) after UK, UT, or TA. For the
V
CC
MAX6754–MAX6759, insert only the V threshold suffix after
CC
the UK or UT. Insert the reset timeout delay (Table 3) after D to
complete the part number. For example, the MAX6760TALTD3-T
µP
MAX6757
provides a V threshold of 5V, a V
threshold of 3.3V, and a
CC
CC2
V
CC
SET
OV
100ms 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
requirement of 10,000 pieces. Contact factory for availability.
GND
MR
NMI
UV
RESET
Ordering Information continued at end of data sheet.
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Low-Power, Single/Dual-Voltage Window
Detectors
ABSOLUTE MAXIMUM RATINGS
(Voltages with respect to GND)
Continuous Power Dissipation (T = +70°C)
A
V
% V % ............................................................-0.3V to +6.5V
CC CC2
5-Pin SOT23-5 (derate 7.1mW/°C above T = +70°C)....571mW
A
SET% OVLATCH% MR% UVIN% OVIN ..............-0.3V to (V
UV% RESET% OV (open drain).................................-0.3V to +6.5V
RESET% OV% UV% UV% RESET (push-pull).....-0.3V to (V + 0.3V)
+ 0.3V)
6-Pin SOT23-6 (derate 8.7mW/°C above T = +70°C)....696mW
A
CC
8-Pin TDFN (derate 24.4mW/°C above T = +70°C).....1951mW
A
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering% 10s) .................................+300°C
CC
Input/Output Current (all pins) ............................................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
(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 T =
CC
CC2
A
A
+25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER REQUIREMENTS
(Note 2)
1.0
1.4
6.0
6.0
Operating Voltage Range
V
V
CC
MAX6760TAAA/MAX6761TAAA/
MAX6762TAAA/MAX6763/MAX6764UT-T
V
V
V
= 3.6V% MAX6754–MAX6759% no load
= 3.6V% MAX6763/MAX6764% no load
13
10
30
23
CC
CC
V
V
Supply Current
I
µA
CC
CC
= 3.6V% V
≥ V
%
CC2
CC
CC
13
1
30
MAX6760/MAX6761/MAX6762% no load
V
= 1.8V% V ≥ V
%
CC2
CC2
CC
Supply Current
1.5
µA
nA
CC2
MAX6760/MAX6761/MAX6762
I
CC2
V
(MAX6760–MAX6762TA_AD_)
CC2
Adjustable Bias Current
-20
+20
(Note 3)
V
CC
THRESHOLD
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
SB
SET
T% 3.3V
R% 3.0V
Z% 2.5V
W% 1.8V
SET = V
CC
SET = GND
V
= V
SB
SET
T
= -40°C to
A
V
Overvoltage Threshold
OV
V
+125°C%
rising V
SET = V
CC
CC
TH
CC
SET = GND
V
= V
SB
SET
SET = V
CC
SET = GND
V
= V
SB
SET
SET = V
CC
SET = GND
2
_______________________________________________________________________________________
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 T =
CC
CC2
A
A
+25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
= V
MIN
TYP
MAX
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
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
SET
SB
L% 5V
SET = V
CC
SET = GND
V
= V
SB
SET
T% 3.3V SET = V
CC
SET = GND
V
= V
SB
SET
T
= -40°C
A
V
Undervoltage Threshold
UV
TH
R% 3.0V
V
to +125°C%
falling V
SET = V
CC
CC
CC
SET = GND
V
= V
SB
SET
Z% 2.5V SET = V
CC
SET = GND
V
= V
SB
SET
W% 1.8V SET = V
CC
SET = GND
V
= V
SB
SET
T% 3.3V
SET = V
CC
SET = GND
V
= V
SB
SET
R% 3.0V SET = V
CC
SET = GND
V
= V
SB
SET
Z% 2.5V SET = V
CC
SET = GND
V
= V
SB
SET
W% 1.8V
I% 1.5V
SET = V
CC
T
A
= -40°C
SET = GND
= V (Note 2)
V
Overvoltage Threshold
OV
V
to +125°C%
rising V
CC2
TH2
V
SET
SB
CC2
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
SB
SET
ADJ
SET = V
CC
SET = GND
_______________________________________________________________________________________
3
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 T =
CC
CC2
A
A
+25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
= V
MIN
TYP
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
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
SET
SB
T% 3.3V
SET = V
CC
SET = GND
V
= V
SB
SET
R% 3.0V SET = V
CC
SET = GND
V
= V
SB
SET
Z% 2.5V
SET = V
CC
SET = GND
V
= V
SB
SET
W% 1.8V SET = V
CC
T
= -40°C
A
SET = GND
= V (Note 2)
V
Undervoltage Threshold
UV
V
to +125°C%
falling 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
SB
SET
ADJ
SET = V
CC
SET = GND
Threshold Hysteresis
V
V
% V
CC CC2
ꢀ
HYST
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
IN
(Note 3)
nA
ꢀ
UVIN% OVIN Threshold
Hysteresis
V
HYST
4
_______________________________________________________________________________________
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 T =
CC
CC2
A
A
+25°C.) (Note 1)
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
UV + 100mV to UV - 100mV
CC CC2
V
V
to Reset Delay
to UV Delay
t
20
20
µs
µs
CC
CC
D-RESET
TH
TH
V
/V
rising at 10mV/µs from
OV - 100mV to OV + 100mV
CC CC2
t
D-UV
TH
TH
V
/V
rising at 10mV/µs from
CC CC2
OV - 100mV to OV + 100mV
(MAX6757–MAX6762 only)
V
to OV Delay
t
20
20
µs
µs
TH
TH
CC
D-OV
UVIN to UV Delay
(MAX6763/MAX6764)
OVIN to OV Delay
Startup Delay Time
(MAX6763/MAX6764)
20
2
µs
t
D0 options only% OV output (Note 4)
ms
START
THRESHOLD WINDOW SELECT INPUT (SET)
Input Voltage Low
0
0.1
V
V
V
= 1.4V
= 3.0V
= 6.0V
0.65
0.75
CC
CC
CC
Input Bias Voltage
(Note 5)
V
V
V
0.81
1.10
2.19
4.90
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
Input Voltage High
V
V
V
CC
0.6 x
V
CC
Pullup Resistance to V
Minimum Pulse Width
Transient Immunity
26
kΩ
µs
ns
CC
4
300
300
40
t
MR falling% Figure 7
MR rising% Figure 7
D-MR
ns
Propagation Delay
D0
D3
t
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
_______________________________________________________________________________________
5
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 T =
CC
CC2
A
A
+25°C.) (Note 1)
PARAMETER
Input Bias Current
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
I
-1
+1
µA
OVLATCH
RESET, RESET, UV, UV, OV
Any V
output asserted
≥ 1.0V% I
= 100µA%
= 200µA%
CC
SINK
0.3
0.3
0.3
0.3
0.3
Any V ≥ 1.2V% I
output asserted
CC
SINK
RESET% UV Output Low (Open
Drain or Push-Pull)
Any V ≥ 1.71V% I
output asserted
= 1.0mA%
= 2.0mA%
= 4.0mA%
CC
SINK
V
V
OL
Any V ≥ 2.85V% I
output asserted
CC
SINK
SINK
Any V ≥ 4.75V% I
output asserted
CC
Any V ≥ 1.71V% I
output deasserted
= 0.8mA%
= 2.0mA%
= 4.0mA%
0.8 x
V
CC
CC
SOURCE
SOURCE
SOURCE
RESET% UV Output High
(Push-Pull)
Any V ≥ 2.85V% I
0.8 x
V
CC
CC
V
V
V
OH
output deasserted
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%
CC
V
OL
output deasserted
Any V ≥ 4.75V% I
= 4.0mA%
CC
SINK
output deasserted
Any V ≥ 1.0V% I
output asserted
= 50µA%
0.8 x
V
CC
CC
SOURCE
SOURCE
Any V ≥ 1.2V% I
= 100µA%
0.8 x
CC
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
6
_______________________________________________________________________________________
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 T =
CC
CC2
A
A
+25°C.) (Note 1)
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
output asserted
= 2.0mA%
= 3.0mA%
CC
0.3
0.3
0.3
OV Output Low
(Open-Drain or
Push-Pull)
V
V
OL
Any V ≥ 3.63V% I
output asserted
CC
Any V ≥ 5.5V% I
output asserted
= 4.0mA%
SINK
CC
Any V ≥ 1.0V% I
= 50µA%
SOURCE
0.8 x
CC
output deasserted
V
CC
Any V ≥ 1.2V% I
= 100µA%
SOURCE
0.8 x
CC
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
CC
state 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 maxi-
CC
CC
mum value is given by (0.9 x V
- 0.51)V.
CC
_______________________________________________________________________________________
7
Low-Power, Single/Dual-Voltage Window
Detectors
Typical Operating Characteristics
(V
CC
= 5V% V
= 3.3V% T = +25°C% unless otherwise noted.)
CC2 A
UNDERVOLTAGE THRESHOLD
TRANSIENT IMMUNITY
vs. THRESHOLD OVERDRIVE
OVERVOLTAGE THRESHOLD
vs. TEMPERATURE
vs. TEMPERATURE
1.03
1.02
1.01
1.00
0.99
0.98
0.97
1000
100
10
1.03
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
A
THRESHOLD AT T = +25°C
A
-40 -25 -10
5
20 35 50 65 80 95 110 125
1
10
100
1000
-40 -25 -10
5
20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OVERDRIVE (mV)
TEMPERATURE (°C)
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
= 2.5V
CC
0
5
10
(mA)
15
20
0
5
10
15
20
I
SINK
I
(mA)
SOURCE
8
_______________________________________________________________________________________
Low-Power, Single/Dual-Voltage Window
Detectors
Pin Description
PIN
MAX6754/ MAX6757/ MAX6760/
MAX6755/ MAX6758/ MAX6761/
MAX6756 MAX6759 MAX6762
NAME
FUNCTION
MAX6763/
MAX6764
Power Voltage Input. V
voltage.
powers the device. V
is the monitored
CC
CC
1
1
1
–
V
CC
—
2
—
2
—
2
1
2
Power Input. V powers the device.
CC
GND
Ground
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 internally
3
4
5
3
—
6
8
—
4
—
—
—
MR
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. Reset
TH
TH
output deasserts after the specified timeout period after V rises
CC
RESET/
RESET
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).
Threshold Window Select Input. SET configures the undervoltage and
overvoltage window range for the internal detectors. Connect SET to
SET
GND for 5ꢀ window% or to V for 10ꢀ window. Bias SET to V /2
CC
CC
for a 15ꢀ window.
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
TH
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).
—
—
4
6
3
—
—
V
Voltage Input. Input for the second window voltage monitor% and
CC2
—
V
CC2
device output power supply when V
> V
.
CC
CC2
Active-Low Overvoltage Output. OV asserts low when the monitored
supply/supplies are above their overvoltage threshold (OV ). OV goes
TH
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.
_______________________________________________________________________________________
9
Low-Power, Single/Dual-Voltage Window
Detectors
Pin Description (continued)
PIN
MAX6754/ MAX6757/ MAX6760/
MAX6755/ MAX6758/ MAX6761/
MAX6756 MAX6759 MAX6762
NAME
FUNCTION
MAX6763/
MAX6764
Overvoltage Output Latch Control Input. Drive OVLATCH high to latch
the overvoltage output for any V
or V
overvoltage condition. Drive
CC2
CC
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. EP is internally connected to GND. Leave EP
unconnected or connect to GND.
EP
—
Functional Diagrams
V
CC
MR
ADJUST
MONITOR
VOLTAGE
(RESET)/
RESET
TIMEOUT
PERIOD
OPTION
UV
OV
TH
UV MONITOR
OV MONITOR
SET
TH
GND
UV THRESHOLD
OV THRESHOLD
-5%, -10%, -15%
+5%, +10%, +15%
MAX6754/MAX6755/MAX6756
INTERNAL
REFERENCE
( ) MAX6755 ONLY.
Figure 1. MAX6754/MAX6755/MAX6756 Functional Diagram
10 ______________________________________________________________________________________
Low-Power, Single/Dual-Voltage Window
Detectors
Functional Diagrams (continued)
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
OV THRESHOLD
-5%, -10%, -15%
+5%, +10%, +15%
MAX6757/MAX6758/MAX6759
INTERNAL
REFERENCE
( ) MAX6758 ONLY.
Figure 2. MAX6757/MAX6758/MAX6759 Functional Diagram
______________________________________________________________________________________ 11
Low-Power, Single/Dual-Voltage Window
Detectors
Functional Diagrams (continued)
V
CC
MR
ADJUST
MONITOR
VOLTAGE
(UV)/
UV
TIMEOUT
PERIOD
OPTION
UV
OV
TH
UV MONITOR
OV MONITOR
OV
OV
CIRCUIT
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
OV
TH
MAX6760/MAX6761/MAX6762
( ) MAX6761 ONLY.
Figure 3. MAX6760/MAX6761/MAX6762 Functional Diagram
12 ______________________________________________________________________________________
Low-Power, Single/Dual-Voltage Window
Detectors
The MAX6754–MAX6762 offer factory-fixed voltage
Functional Diagrams (continued)
thresholds for monitoring system voltages from 0.9V to
5V. The MAX6754–MAX6762 include a SET function to
select the window voltage to 5ꢀ% 10ꢀ% or 15ꢀ. The
MAX6763/MAX6764 allow for externally adjustable
upper 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).
MAX6763/MAX6764
UVIN
UV
UV
OV
TH
UV MONITOR
Supply Voltages
V
is the power-supply input and the monitored voltage
CC
INTERNAL
REFERENCE
0.5V
V
GND
OV
CC
of the MAX6754–MAX6762. These devices feature a fac-
tory-trimmed V and V divider that sets the nominal
CC
CC2
TH
input range (see Tables 1 and 2). V
for the MAX6763/
CC
MAX6764 is the power supply of the device and not the
monitored voltage. For noisy systems% bypass V and
CC
V
CC2
each with a 0.1µF capacitor to GND.
OVIN
OV MONITOR
Setting the Adjustable Nominal Voltage
Threshold
The MAX6760/MAX6761/MAX6762 (versions with suffix-
es LA% TA% RA% ZA% WA% and AA) offer adjustable nominal
Figure 4. MAX6763/MAX6764 Functional Diagram
voltage threshold to monitor V
. Use an external volt-
CC2
age-divider to set the voltage at V
to 0.4255V.
CC2
Detailed Description
Configure SET to select a monitor window of 5ꢀ%
10ꢀ% or 15ꢀ (see Figure 5). The MAX6760/MAX6761/
The MAX6754–MAX6764 are low-power window volt-
age detectors capable of monitoring undervoltage and
overvoltage conditions on system power supplies.
Whenever a monitored voltage falls below its undervolt-
age threshold or exceeds its overvoltage threshold%
these devices assert their outputs to notify the system
(see Functional Diagrams).
MAX6762 suffix AA monitor only V
and do not moni-
CC2
tor V
.
CC
0.4255V +5%
+10%
The MAX6754/MAX6755/MAX6756 are single-voltage
window detectors with internally fixed nominal voltage%
externally adjustable set window% single reset
under/overvoltage output% and a manual reset input.
V+
+15%
OV
R1
V
CC2
The MAX6757/MAX6758/MAX6759 are single-voltage
window detectors with internally set nominal voltage%
externally adjustable set window% separate under/over-
voltage outputs% and manual reset input.
(UV)
UV
R2
The MAX6760/MAX6761/MAX6762 are dual-voltage
window detectors with internally/externally set nominal
voltages% externally adjustable set window% separate
under/overvoltage outputs% manual reset input% and
overvoltage latch functions.
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 under/overvoltage outputs.
( ) MAX6761 ONLY.
Figure 5. Setting the Threshold Voltage of V
CC2
______________________________________________________________________________________ 13
Low-Power, Single/Dual-Voltage Window
Detectors
Overvoltage Latch Control Input
V+
(OVLATCH)
The MAX6760/MAX6761/MAX6762 provide an overvolt-
age latch control input (OVLATCH). Drive OVLATCH
R1
R2
R3
MAX6763/MAX6764
high to latch the overvoltage output for any V
or
UVIN
CC
V
overvoltage condition. Drive OVLATCH low to
CC2
UV
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
OV
TH
UV MONITOR
INTERNAL
REFERENCE
0.5V
V
CC
GND
OV
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
TH
threshold or above the selected OV
threshold. The
TH
OVIN
reset output deasserts after the specified timeout peri-
od when the monitored supply rises above the UV
OV MONITOR
TH
threshold or drops below the OV
threshold. The
TH
push-pull versions are referenced to V
.
CC
V+ x R3
OVERVOLTAGE ASSERTS WHEN
UNDERVOLTAGE ASSERTS WHEN
> 0.5V
< 0.5V
R1 + R2 + R3
The MAX6760/MAX6761/MAX6762 monitor both V
CC
V+ x (R2 + R3)
R1 + R2 + R3
and V
. An under/overvoltage condition on either
CC2
voltage supply asserts the corresponding output.
RESET and UV are guaranteed to be in the correct
Figure 6. Setting the Under/Overvoltage Window
logic state when V
or V
> 1V.
CC2
CC
Choose R2 to have a resistance of up to 500kΩ.
Calculate R1 by:
MR
R1 = ((V - 0.4255V) x R2) / 0.4255V
+
The MAX6763/MAX6764 provide inputs to a window
detector allowing the programming of the threshold
t
D-MR
voltage to within V
(see Figure 6).
CC
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 ±5ꢀ window. Connect SET to V
for a
CC
10ꢀ window. Bias SET to V /2 for a 15ꢀ window.
CC
V
CC
Manual Reset (MR)
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 7) after MR goes high. MR is internally
t
D-UV
RESET, UV
t
RP
pulled to V
with a 26kΩ resistor.
CC
(RESET IS THE COMPLEMENT OF RESET)
Figure 7b. V /RESET, UV Timing Diagram
CC
14 ______________________________________________________________________________________
Low-Power, Single/Dual-Voltage Window
Detectors
turns the SCR on% blowing the fuse to disconnect the
Applications Information
Microprocessor Monitoring
Figure 8 shows a microprocessor monitoring circuit. An
overvoltage condition on either the core or I/O supply
circuit from the power source. An optional capacitor
(C1) on the gate of the SCR provides additional tran-
sient immunity against nuisance trips.
CORE
DC-DC
CORE
CONVERTER
FUSE
I/O
DC-DC
I/O
CONVERTER
UNREGULATED
POWER SOURCE
µP
MAX6760
V
V
MR
OVLATCH
UV
CC2
PUSH BUTTON
CC
GND
SET
RESET
NMI
100kΩ
100kΩ
SCR
OV
100kΩ
*C1
1µF
*OPTIONAL.
Figure 8. Microprocessor Monitoring
Selector Guide
PUSH-PULL PUSH-PULL OPEN-DRAIN PUSH-PULL PUSH-PULL OPEN-DRAIN PUSH-PULL OPEN-DRAIN
RESET
RESET
RESET
UV
UV
UV
—
—
—
—
—
X
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
—
—
—
______________________________________________________________________________________ 15
Low-Power, Single/Dual-Voltage Window
Detectors
Table 3. Timeout Period Suffix Guide
Table 1. Window Threshold Voltage
ACTIVE TIMEOUT PERIOD
TIMEOUT
Suffix Guide Single Fixed V
CC
(MAX6754—MAX6759)
PERIOD SUFFIX
MIN (ms)
—
TYP (MS)
0.02
MAX (ms)
—
D0
D3
PART NO. SUFFIX
V
CC
NOMINAL SYSTEM VOLTAGE (V)
100
185
320
L
T
5.0
3.3
3.0
2.5
1.8
Ordering Information (continued)
R
Z
PART*
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
6 SOT23-6
8 TDFN-8
W
MAX6759UT_D_-T
MAX6760TA_ _D_-T
MAX6761TA_ _D_-T
MAX6762TA_ _D_-T
MAX6763UT-T
Table 2. Window Threshold Voltage
Suffix Guide Dual Fixed/Adjustable
(MAX6760/MAX6761/MAX6762)
8 TDFN-8
8 TDFN-8
6 SOT23-6
6 SOT23-6
V
NOMINAL
V
NOMINAL
CC
CC2
MAX6764UT-T
PART NO.
SUFFIX
SYSTEM VOLTAGE
(V)
SYSTEM VOLTAGE
(V)
*Note: Insert the threshold level suffixes for V and V
CC
CC2
(Tables 1 and 2) after UK, UT, or TA. For the
MAX6754–MAX6759, insert only the V threshold suffix after
the UK or UT. Insert the reset timeout delay (Table 3) after D to
complete the part number. For example, the MAX6760TALTD3-T
LT
LR
LA
TZ
5
3.3
3.0
CC
5
5
ADJ*
2.5
provides a V threshold of 5V, a V
threshold of 3.3V, and a
CC
CC2
100ms 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
requirement of 10,000 pieces. Contact factory for availability.
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
–
TW
TI
1.8
1.5
TG
TE
1.2
0.9
TA
RZ
RW
RI
ADJ*
2.5
1.8
1.5
RG
RE
RA
ZW
ZI
1.2
0.9
ADJ*
1.8
1.5
ZG
ZE
ZA
WI
1.2
0.9
ADJ*
1.5
WG
WE
WA
AA
1.2
0.9
ADJ*
ADJ*
*See Setting the Adjustable Nominal Voltage Threshold Section.
16 ______________________________________________________________________________________
Low-Power, Single/Dual-Voltage Window
Detectors
Standard Versions Table
PART
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
TOP MARK
ABSY
ABRG
ABSZ
ABRH
ABRJ
ABTB
ABTC
ABRK
ABRL
ABTD
ABRM
ABTE
ABTG
ABRO
ABRP
ABTH
AIO
PART
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
TOP MARK
AEOC
AEJN
AEOD
AEJO
AEJQ
AEOF
AEOG
AEJR
AEOH
AEJS
AEOI
AEJT
AEKV
AEOK
AEOL
AEJW
AEJX
AHI
AEOM
AEJY
AIR
AHJ
AEON
AEOP
AEKA
AEKB
AEOQ
ABST
ABRB
ABSO
ABRC
ABRE
ABSW
ABSX
ABRF
AIT
AIV
AIX
AIZ
AJB
AHL
______________________________________________________________________________________ 17
Low-Power, Single/Dual-Voltage Window
Detectors
Standard Versions Table (continued)
PART
MAX6762TALTD3
MAX6762TALAD3
MAX6762TATZD3
MAX6762TATWD3
MAX6762TATAD3
MAX6762TARAD3
MAX6762TAZWD3
MAX6762TAZAD3
MAX6762TAWED3
MAX6762TAWAD3
MAX6763UT
TOP MARK
AJT
PART
MAX6761TALTD3
MAX6761TALAD3
MAX6761TATZD3
MAX6761TATWD3
MAX6761TATAD3
MAX6761TARAD3
MAX6761TAZWD3
MAX6761TAZAD3
MAX6761TAWED3
MAX6761TAWAD3
TOP MARK
AJD
AHR
AHN
AJG
AJW
AJY
AHO
AJI
AKA
AKB
AJK
AHT
AJM
AKE
AJO
AKF
AJQ
AKH
AHQ
ABRQ
ABRR
MAX6764UT
18 ______________________________________________________________________________________
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
CC2
GND
MR
SET
RESET (RESET)
TDFN
( ) MAX6761 ONLY.
SOT23
( ) MAX6755 ONLY.
V
1
2
3
6
5
4
SET
V
1
2
3
6
OVIN
OV
CC
CC
MAX6757
MAX6758
MAX6759
MAX6763
MAX6764
GND
MR
OV
GND
UVIN
5
4
UV (UV)
UV
SOT23
( ) MAX6758 ONLY.
SOT23
Chip Information
TRANSISTOR COUNT: 726
PROCESS: BiCMOS
______________________________________________________________________________________ 19
Low-Power, Single/Dual-Voltage Window
Detectors
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information%
go to www.maxim-ic.com/packages.)
D
N
PIN 1
INDEX
AREA
E
E2
DETAIL A
C
C
L
L
L
L
A
e
e
PACKAGE OUTLINE, 6, 8, 10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
1
NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY
21-0137
E
2
COMMON DIMENSIONS
SYMBOL
MIN.
0.70
2.90
2.90
0.00
0.20
MAX.
0.80
3.10
3.10
0.05
0.40
A
D
E
A1
L
k
0.25 MIN.
0.20 REF.
A2
PACKAGE VARIATIONS
PKG. CODE
T633-1
N
6
D2
E2
e
JEDEC SPEC
b
[(N/2)-1] x e
1.50 0.10 2.30 0.10 0.95 BSC
1.50 0.10 2.30 0.10 0.65 BSC
MO229 / WEEA
MO229 / WEEC
0.40 0.05
0.30 0.05
1.90 REF
1.95 REF
2.00 REF
2.40 REF
T833-1
8
T1033-1
T1433-1
10
14
1.50 0.10 2.30 0.10 0.50 BSC MO229 / WEED-3 0.25 0.05
1.70 0.10 2.30 0.10 0.40 BSC - - - - 0.20 0.03
PACKAGE OUTLINE, 6, 8, 10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
2
21-0137
E
2
20 ______________________________________________________________________________________
Low-Power, Single/Dual-Voltage Window
Detectors
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information%
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, SOT-23, 5L
1
21-0057
E
1
______________________________________________________________________________________ 21
Low-Power, Single/Dual-Voltage Window
Detectors
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information%
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, SOT-23, 6L
1
21-0058
F
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
22 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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