MAX6377XR45-T [MAXIM]
Analog IC ; 模拟IC\n
| 型号： | MAX6377XR45-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Analog IC
|
| 文件： | 总8页 (文件大小：166K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1721; Rev 0; 4/00
3-Pin, Ultra-Low-Power SC70
Voltage Detectors
General Description
Features
The MAX6375–MAX6380 are ultra-low-power circuits
used for monitoring battery, power-supply, and regulat-
ed system voltages. Each detector contains a precision
bandgap reference, comparator, and internally trimmed
resistors that set specified trip threshold voltages.
These devices provide excellent circuit reliability and
low cost by eliminating external components and
adjustments when monitoring nominal system voltages
from 2.5V to 5V.
o Ultra-Low 500nA Supply Current
(MAX6375/MAX6376/MAX6377)
o Thresholds Available from 2.20V to 4.63V in
Approximately 100mV Increments
o
2.5ꢀ Threshold Accuracy ꢁver Temperature
o Low Cost
o Available in Three Versions: Push-Pull OUT,
Push-Pull ꢁUT, and ꢁpen-Drain OUT
These circuits perform a single function: they assert an
o Power-Supply Transient Immunity
o No External Components
o 3-Pin SC70 Package
output signal whenever the V
supply voltage falls
CC
below a preset threshold. The devices are differentiated
by their output logic configurations and preset thresh-
old voltages. The MAX6375/MAX6378 (push-pull) and
MAX6377/MAX6380 (open-drain) have an active-low
Ordering Information
output (OUT is logic low when V
is below V ). The
TH
CC
MAX6376/MAX6379 have an active-high push-pull out-
put (OUT is logic high when V is below V ). All
†
PART
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
3 SC70-3
CC
TH
MAX6375XR_ _-T
MAX6376XR_ _-T
MAX6377XR_ _-T
MAX6378XR_ _-T
MAX6379XR_ _-T*
MAX6380XR_ _-T
parts are guaranteed to be in the correct output logic
3 SC70-3
state for V
down to 1V. The detector is designed to
CC
3 SC70-3
ignore fast transients on V . The MAX6375/MAX6376/
CC
MAX6377 have voltage thresholds between 2.20V and
3.08V in approximately 100mV increments. The
MAX6378/MAX6379/MAX6380 have voltage thresholds
between 3.30V and 4.63V in approximately 100mV
increments.
Ultra-low supply current of 500nA (MAX6375/MAX6376/
MAX6377) makes these parts ideal for use in portable
equipment. All six devices are available in space-saving
SC70 packages.
3 SC70-3
3 SC70-3
3 SC70-3
†
The MAX6375/MAX6376/MAX6377 are available in factory-pre-
set thresholds from 2.20V to 3.08V, in approximately 0.1V incre-
ments. The MAX6378/MAX6379/MAX6380 are available in
factory-preset thresholds from 3.30V to 4.63V, in approximately
0.1V increments. Choose the desired threshold suffix from
Table 1 and insert it in the blank spaces following R. There are
21 standard versions, with a required order increment of 2500
pieces. Sample stock is generally held on the standard versions
only (see the Selector Guide). The required order increment is
10,000 pieces for nonstandard versions (Table 2). Contact facto-
ry for availability. All devices available in tape-and-reel only.
*Future product—contact factory for availability.
Applications
Precision Battery Monitoring
Load Switching/Power Sequencing
Power-Supply Monitoring in Digital/Analog Systems
Portable/Battery-Powered Equipment
Pin Configuration
TOP VIEW
GND
1
MAX6375
MAX6376
MAX6377
MAX6378
MAX6379
MAX6380
3
V
CC
Selector Guide appears at end of data sheet.
OUT (OUT)
2
SC70-3
( ) ARE FOR MAX6376/MAX6379 ONLY.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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3-Pin, Ultra-Low-Power SC70
Voltage Detectors
ABSꢁLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
Continuous Power Dissipation (T = +70°C)
A
V
...........................................................................-0.3V to +6V
3-Pin SC70 (derate 2.17mW/°C above +70°C)...........174mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
CC
OUT, OUT (push-pull) ................................-0.3V to (V
OUT (open-drain) .....................................................-0.3V to +6V
Input Current (V ).............................................................20mA
Output Current (OUT, OUT)................................................20mA
+ 0.3V)
CC
CC
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
= full range, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C and V
= 3V.) (Note 1)
CC
A
A
CC
PARAMETER
SYMBꢁL
CꢁNDITIꢁNS
= 0°C to +70°C
MIN
1.0
TYP
MAX
5.5
UNITS
T
T
A
V
CC
Operating Range
V
= -40°C to +85°C
1.2
5.5
A
MAX6375/76/77 only, V = 3.0V for V ≤ 2.93V,
CC
CC
TH
0.5
1.0
1.0
V
= 3.2V for V > 2.93V, no load
TH
Supply Current
I
µA
V
CC
V
CC
= 5.5V, no load
1.75
T
T
= +25°C
V
V
-1.5% V
-2.5% V
V +1.5%
TH TH
A
TH
Voltage Threshold
V
Table 1
TH
= -40°C to +85°C
V
+2.5%
A
TH
TH TH
Voltage Threshold Tempco
Propagation Delay
∆V /°C
40
20
42
ppm/°C
µs
TH
V
V
= (V + 100mV) to (V - 100mV)
TH TH
CC
= (V - 100mV) to (V + 100mV)
CC
TH
TH
OUT Output Voltage
(MAX6375/MAX6377/
MAX6378/MAX6380)
0.3
0.4
I
= 1.6mA, V
> 2.1V, OUT asserted
SINK
CC
V
V
V
OL
I
= 100µA, V
≥ 1.2V, OUT asserted
SINK
CC
✕
✕
✕
✕
✕
0.8
0.8
0.8
0.8
0.8
V
CC
V
CC
V
CC
V
CC
V
CC
I
I
I
I
I
= 500µA, V
= 800µA, V
= 800µA, V
= 500µA, V
= 50µA, V
= 3.2V, MAX6375 only
SOURCE
SOURCE
SOURCE
SOURCE
SOURCE
CC
OUT Output Voltage
(MAX6375/MAX6377)
V
OH
= 4.5V, V ≤ 4.38V
CC
CC
CC
TH
= V , V ≥ 4.5V
TH(MAX) TH
≥ 2.1V, OUT asserted
V
OH
≥ 1.2V, OUT asserted
CC
I
= 1.2mA, V
≥ 3.2V, OUT not asserted,
SINK
CC
0.3
OUT Output Voltage
(MAX6376/MAX6379)
MAX6376 only
V
V
OL
I
= 3.2mA, V
≥ 4.5V, OUT not asserted,
SINK
CC
0.4
0.4
V
≤ 4.38V
TH
I
= 3.2mA, V
= V , V ≥ 4.5V
TH(MAX) TH
SINK
CC
MAX6375/MAX6376/MAX6377
MAX6378/MAX6379/MAX6380
6.3
9.5
Voltage Threshold
Hysteresis
mV
µA
Open-Drain OUT Output
Leakage Current
0.1
Note 1: Production tested at +25°C only. Overtemperature limits are guaranteed by design, not production tested.
2
_______________________________________________________________________________________
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3-Pin, Ultra-Low-Power SC70
Voltage Detectors
__________________________________________Typical Operating Characteristics
(V = 5, T = +25°C, unless otherwise noted.)
CC
A
PROPAGATION DELAY (FALLING)
vs. TEMPERATURE
SUPPLY CURRENT vs. TEMPERATURE
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
200
150
V
= 5V
CC
V
= 3.3V
CC
100
50
0
V
= 20mV
OD
V
= 10mV
OD
V
= 100mV
OD
0
V
= 1.2V
20
CC
V
= 200mV
40
OD
-40
-20
20
60
80
-40 -20
0
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
PROPAGATION DELAY (RISING)
vs. TEMPERATURE
MAXIMUM TRANSIENT DURATION
vs. THRESHOLD OVERDRIVE
140
120
100
80
500
400
300
200
100
0
V
= 10mV
OD
V
= 20mV
OD
60
V
= 100mV
= 200mV
OD
OUT/OUT IS ASSERTED
ABOVE LINE
40
20
V
OD
0
-40
-20
0
20
40
60
80
1
10
100
1000
TEMPERATURE (°C)
THRESHOLD OVERDRIVE
V
- V (mV)
CC
TH
Pin Description
PIN
NAME
FUNCTIꢁN
MAX6375/MAX6378
MAX6377/MAX6380
MAX6376
MAX6379
1
1
GND
OUT
OUT
Ground
Active-Low Output. OUT remains low while V
is below the threshold. OUT is
CC
2
—
open-drain on the MAX6377/MAX6380 and push-pull on the MAX6375/MAX6378.
—
3
2
3
Active-High Output. OUT remains high while V
is below the threshold.
CC
V
CC
Supply Voltage
______________________________________________________________________________________
3
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3-Pin, Ultra-Low-Power SC70
Voltage Detectors
Negative-Going V
Transients
CC
____________ Applications Information
These devices are relatively immune to short-duration,
negative-going V transients (glitches). The Typical
Interfacing to Different
Logic Voltage Components
CC
Operating Characteristics show the Maximum Transient
Duration vs. Threshold Overdrive graph, for which out-
put pulses are not generated. The graph shows the
The MAX6377/MAX6380 have an active-low, open-
drain output. This output structure will sink current
when OUT is asserted. Connect a pull-up resistor from
OUT to any supply voltage up to 5.50V (Figure 1).
Select a resistor value large enough to allow a valid
logic low (see Electrical Characteristics), and small
enough to register a logic high while supplying all input
current and leakage paths connected to the OUT line.
maximum pulse width that a negative-going V
tran-
CC
sient may typically have before the devices issue out-
put signals. As the amplitude of the transient increases,
the maximum-allowable pulse width decreases.
REGULATED
V
V
IN
OUT
DC/DC
CONVERTER
3.0V
V
CC
3.6V
Li+
µP
V
CC
OUT
SUSPEND
MAX6377
(OPEN-DRAIN)
Figure 1. Interfacing to Different Logic Voltage Components
‡
Table 1. Factory-Trimmed Voltage Thresholds
THRESHꢁLD VꢁLTAGE, V (V)
TH
PART
SUFFIX
T
= +25°C
T
= -40°C Tꢁ +85°C
A
A
MIN
TYP
MAX
2.233
2.355
2.436
2.537
2.669
2.741
2.842
2.974
3.045
3.126
MIN
MAX
22
23
24
25
26
27
28
29
30
31
2.167
2.285
2.364
2.462
2.591
2.660
2.758
2.886
2.955
3.034
2.200
2.320
2.400
2.500
2.630
2.700
2.800
2.930
3.000
3.080
2.145
2.262
2.340
2.437
2.564
2.633
2.730
2.857
2.925
3.003
2.250
2.375
2.460
2.562
2.696
2.768
2.870
3.000
3.075
3.150
MAX6375XR
MAX6376XR
MAX6377XR
‡
Factory-trimmed voltage thresholds are available in approximately 100mV increments with a 1.5% room-temperature variance.
4
_______________________________________________________________________________________
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3-Pin, Ultra-Low-Power SC70
Voltage Detectors
Table 1. Factory-Trimmed Voltage Thresholds‡ (continued)
THRESHꢁLD VꢁLTAGE, V (V)
TH
PART
SUFFIX
T
= +25°C
T
= -40°C Tꢁ +85°C
A
A
MIN
TYP
MAX
3.350
3.451
3.552
3.654
3.755
3.857
3.958
4.060
4.161
4.263
4.364
4.446
4.567
4.699
MIN
MAX
33
34
35
36
37
38
39
40
41
42
43
44
45
46
3.250
3.349
3.447
3.546
3.644
3.743
3.841
3.940
4.038
4.137
4.235
4.314
4.432
4.560
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.380
4.500
4.630
3.217
3.315
3.412
3.510
3.607
3.705
3.802
3.900
3.997
4.095
4.192
4.270
4.387
4.514
3.383
3.485
3.587
3.690
3.792
3.895
3.997
4.100
4.202
4.305
4.407
4.489
4.612
4.746
MAX6378XR
MAX6379XR
MAX6380XR
‡
Factory-trimmed voltage thresholds are available in approximately 100mV increments with a 1.5% room-temperature variance.
Table 2. Device Marking Codes and Minimum ꢁrder Increments
TꢁP MARK
(SC70)
ꢁRDER
INCREMENT (k)
TꢁP MARK
(SC70)
ꢁRDER
INCREMENT (k)
PART
PART
MAX6375XR22-T
MAX6375XR23-T
MAX6375XR24-T
MAX6375XR25-T
MAX6375XR26-T
MAX6375XR27-T
MAX6375XR28-T
MAX6375XR29-T
MAX6375XR30-T
MAX6375XR31-T
MAX6376XR22-T
MAX6376XR23-T
MAX6376XR24-T
MAX6376XR25-T
MAX6376XR26-T
MAX6376XR27-T
ADH
ADI
—
2.5
2.5
10
MAX6376XR28-T
MAX6376XR29-T
MAX6376XR30-T
MAX6376XR31-T
MAX6377XR22-T
MAX6377XR23-T
MAX6377XR24-T
MAX6377XR25-T
MAX6377XR26-T
MAX6377XR27-T
MAX6377XR28-T
MAX6377XR29-T
MAX6377XR30-T
MAX6377XR31-T
MAX6378XR33-T
MAX6378XR34-T
—
ADA
—
10
2.5
10
—
10
ADO
ADP
ADB
—
2.5
2.5
2.5
10
ACZ
—
2.5
10
—
10
ADJ
—
2.5
10
—
10
ADQ
—
2.5
10
ADK
ADL
ADM
—
2.5
2.5
2.5
10
—
10
ADC
—
2.5
10
—
10
ADR
—
2.5
10
ADN
—
2.5
10
—
10
_______________________________________________________________________________________
5
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3-Pin, Ultra-Low-Power SC70
Voltage Detectors
Table 2. Device Marking Codes and Minimum ꢁrder Increments (continued)
TꢁP MARK
(SC70)
ꢁRDER
INCREMENT (k)
TꢁP MARK
(SC70)
ꢁRDER
INCREMENT (k)
PART
PART
MAX6379XR41-T
MAX6379XR42-T
MAX6379XR43-T
MAX6379XR44-T
MAX6379XR45-T
MAX6379XR46-T
MAX6380XR33-T
MAX6380XR34-T
MAX6380XR35-T
MAX6380XR36-T
MAX6380XR37-T
MAX6380XR38-T
MAX6380XR39-T
MAX6380XR40-T
MAX6380XR41-T
MAX6380XR42-T
MAX6380XR43-T
MAX6380XR44-T
MAX6380XR45-T
MAX6380XR46-T
—
—
10
10
10
2.5
10
2.5
10
10
10
10
10
10
10
10
10
10
10
2.5
10
2.5
MAX6378XR35-T
MAX6378XR36-T
MAX6378XR37-T
MAX6378XR38-T
MAX6378XR39-T
MAX6378XR40-T
MAX6378XR41-T
MAX6378XR42-T
MAX6378XR43-T
MAX6378XR44-T
MAX6378XR45-T
MAX6378XR46-T
MAX6379XR33-T
MAX6379XR34-T
MAX6379XR35-T
MAX6379XR36-T
MAX6379XR37-T
MAX6379XR38-T
MAX6379XR39-T
MAX6379XR40-T
—
—
10
10
10
10
10
10
10
10
10
2.5
10
2.5
10
10
10
10
10
10
10
10
—
—
ADE
—
—
—
ADT
—
—
—
—
—
—
—
—
ADS
—
—
—
ADD
—
—
—
—
—
—
—
—
—
—
ADU
—
—
—
ADF
—
Selector Guide
(Standard Versions*)
___________________Chip Information
PART
MAX63__XR46-T
MAX63__XR44-T
MAX63__XR31-T
MAX63__XR29-T
MAX63__XR26-T
MAX63__XR23-T
MAX63__XR22-T
NꢁMINAL V
4.63
(V)
TH
TRANSISTOR COUNT: 419
4.38
3.08
2.93
2.63
2.32
2.20
*Sample stock is generally held on all standard versions.
Contact factory for availability of nonstandard versions.
6
_______________________________________________________________________________________
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3-Pin, Ultra-Low-Power SC70
Voltage Detectors
________________________________________________________Package Information
_______________________________________________________________________________________
7
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3-Pin, Ultra-Low-Power SC70
Voltage Detectors
NꢁTES
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.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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