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MAX6379XR44+T [ROCHESTER]

1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, SC-70, 3 PIN;
MAX6379XR44+T
型号： MAX6379XR44+T
厂家： Rochester Electronics    Rochester Electronics
描述：

1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, SC-70, 3 PIN

光电二极管
文件： 总8页 (文件大小：826K)
中文：  中文翻译
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19-1721; Rev 2; 2/03  
3-Pin, Ultra-Low-Power SC70/SOT23  
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
2.5% Threshold Accuracy Over Temperature  
o Low Cost  
o Available in Three Versions: Push-Pull OUT,  
Push-Pull OUT, and Open-Drain OUT  
These circuits perform a single function: they assert an  
o Power-Supply Transient Immunity  
o No External Components  
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  
o Available in Either a 3-Pin SC70  
or 3-Pin SOT23 Package  
output (OUT is logic low when V  
is below V ). The  
TH  
CC  
Ordering Information  
MAX6376/MAX6379 have an active-high push-pull out-  
put (OUT is logic high when V is below V ). All  
CC  
TH  
PART*  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
3 SOT23-3  
3 SC70-3  
parts are guaranteed to be in the correct output logic  
MAX6375UR _ _ -T  
MAX6375XR _ _ -T  
MAX6376UR _ _ -T  
MAX6376XR _ _ -T  
state for V  
down to 1V. The detector is designed to  
CC  
ignore fast transients on V . The MAX6375/MAX6376/  
CC  
3 SOT23-3  
3 SC70-3  
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.  
*
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.  
Ultra-low supply current of 500nA (MAX6375/MAX6376/  
MAX6377) makes these parts ideal for use in portable  
equipment. All six devices are available in a space-sav-  
ing SC70 package or in a tiny SOT23 package.  
Applications  
Precision Battery Monitoring  
Load Switching/Power Sequencing  
Ordering information continued at end of data sheet  
Power-Supply Monitoring in Digital/Analog Systems  
Portable/Battery-Powered Equipment  
Pin Configuration  
TOP VIEW  
GND  
1
2
OUT(OUT)  
CC  
1
2
MAX6375XR–  
MAX6380XR  
MAX6375UR–  
MAX6380UR  
V
V
3
3
CC  
Selector Guide appears at end of data sheet.  
OUT(OUT)  
GND  
SC70-3  
SOT23-3  
( ) ARE FOR MAX6376/MAX6379 ONLY.  
________________________________________________________________ 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.  
3-Pin, Ultra-Low-Power SC70/SOT23  
Voltage Detectors  
ABSOLUTE 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  
3-Pin SOT23 (derate 4mW/°C above +70°C)..............320mW  
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  
CC  
A
A
PARAMETER  
SYMBOL  
CONDITIONS  
= 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  
TH  
V
V
= (V + 100mV) to (V - 100mV)  
TH TH  
CC  
µs  
= (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
_______________________________________________________________________________________  
3-Pin, Ultra-Low-Power SC70/SOT23  
Voltage Detectors  
__________________________________________Typical Operating Characteristics  
(V = 5V, 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  
THRESHOLD OVERDRIVE  
- V (mV)  
100  
1000  
TEMPERATURE (°C)  
V
TH  
CC  
Pin Description  
PIN  
MAX6375/MAX6377/  
MAX6378/MAX6380  
MAX6376/MAX6379  
NAME  
FUNCTION  
SC70-3  
1
SOT23-3  
2
SC70-3  
1
SOT23-3  
2
GND  
Ground  
Active-Low Output. OUT remains low while V  
is below the threshold.  
CC  
OUT is open-drain on the MAX6377/MAX6380 and push-pull on the  
2
1
—
—
OUT  
MAX6375/MAX6378.  
Active-High Output. OUT remains high while V  
threshold.  
is below the  
CC  
—
—
2
3
1
3
OUT  
3
3
V
Supply Voltage  
CC  
______________________________________________________________________________________  
3
3-Pin, Ultra-Low-Power SC70/SOT23  
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 sinks current when  
OUT is asserted. Connect a pullup 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 Reset Thresholds  
RESET THRESHOLD VOLTAGE, V (V)  
TH  
PART  
SUFFIX  
T
= +25°C  
TYP  
T
= -40°C TO +85°C  
A
A
MIN  
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  
MAX6375_R  
MAX6376_R  
MAX6377_R  
‡
Factory-trimmed reset thresholds are available in approximately 100mV increments with a 1.5% room-temperature variance.  
_______________________________________________________________________________________  
4
3-Pin, Ultra-Low-Power SC70/SOT23  
Voltage Detectors  
Table 1. Factory-Trimmed Reset Thresholds‡ (continued)  
RESET THRESHOLD VOLTAGE, V (V)  
TH  
PART  
SUFFIX  
T
= +25°C  
TYP  
T
= -40°C TO +85°C  
A
A
MIN  
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  
MAX6378_R  
MAX6379_R  
MAX6380_R  
‡
Factory-trimmed reset thresholds are available in approximately 100mV increments with a 1.5% room-temperature variance.  
Table 2. Device Marking Codes and Minimum Order Increments  
TOP MARK TOP MARK  
ORDER  
TOP MARK TOP MARK  
ORDER  
PART  
PART  
(SC70)  
(SOT23) INCREMENT (k)  
(SC70)  
(SOT23) INCREMENT (k)  
MAX6376_R30-T  
MAX6376_R31-T  
MAX6377_R22-T  
MAX6377_R23-T  
MAX6377_R24-T  
MAX6377_R25-T  
MAX6377_R26-T  
MAX6377_R27-T  
MAX6377_R28-T  
MAX6377_R29-T  
MAX6377_R30-T  
MAX6377_R31-T  
MAX6378_R33-T  
MAX6378_R34-T  
MAX6378_R35-T  
MAX6378_R36-T  
MAX6378_R37-T  
MAX6378_R38-T  
—
ADO  
ADP  
ADB  
—
—
FZHL  
FZHM  
FZHN  
—
10  
2.5  
2.5  
2.5  
10  
10  
2.5  
10  
10  
2.5  
10  
2.5  
10  
10  
10  
10  
10  
10  
MAX6375_R22-T  
MAX6375_R23-T  
MAX6375_R24-T  
MAX6375_R25-T  
MAX6375_R26-T  
MAX6375_R27-T  
MAX6375_R28-T  
MAX6375_R29-T  
MAX6375_R30-T  
MAX6375_R31-T  
MAX6376_R22-T  
MAX6376_R23-T  
MAX6376_R24-T  
MAX6376_R25-T  
MAX6376_R26-T  
MAX6376_R27-T  
MAX6376_R28-T  
MAX6376_R29-T  
ADH  
ADI  
—
FZHD  
FZHE  
—
2.5  
2.5  
10  
—
—
10  
ACZ  
—
FZHC  
—
2.5  
10  
—
—
ACQ  
—
FZHO  
—
—
—
10  
ADJ  
—
FZHF  
—
2.5  
10  
—
—
ADC  
—
FZHP  
—
ADK  
ADL  
ADM  
—
FZHG  
FZHH  
FZHI  
—
2.5  
2.5  
2.5  
10  
ADR  
—
FZHQ  
—
—
—
—
—
10  
—
—
ADN  
—
FZHJ  
—
2.5  
10  
—
—
—
—
—
—
10  
—
—
ADA  
FZHK  
2.5  
_______________________________________________________________________________________  
5
3-Pin, Ultra-Low-Power SC70/SOT23  
Voltage Detectors  
Table 2. Device Marking Codes and Minimum Order Increments (continued)  
TOP MARK TOP MARK  
ORDER  
TOP MARK TOP MARK  
ORDER  
PART  
PART  
(SC70)  
(SOT23) INCREMENT (k)  
(SC70)  
(SOT23) INCREMENT (k)  
MAX6378_R39-T  
MAX6378_R40-T  
MAX6378_R41-T  
MAX6378_R42-T  
MAX6378_R43-T  
MAX6378_R44-T  
MAX6378_R45-T  
MAX6378_R46-T  
MAX6379_R33-T  
MAX6379_R34-T  
MAX6379_R35-T  
MAX6379_R36-T  
MAX6379_R37-T  
MAX6379_R38-T  
MAX6379_R39-T  
MAX6379_R40-T  
MAX6379_R41-T  
MAX6379_R42-T  
—
—
—
—
10  
10  
10  
10  
10  
2.5  
10  
2.5  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
MAX6379_R43-T  
MAX6379_R44-T  
MAX6379_R45-T  
MAX6379_R46-T  
MAX6380_R33-T  
MAX6380_R34-T  
MAX6380_R35-T  
MAX6380_R36-T  
MAX6380_R37-T  
MAX6380_R38-T  
MAX6380_R39-T  
MAX6380_R40-T  
MAX6380_R41-T  
MAX6380_R42-T  
MAX6380_R43-T  
MAX6380_R44-T  
MAX6380_R45-T  
MAX6380_R46-T  
—
ADE  
—
—
FZHW  
—
10  
2.5  
10  
2.5  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
2.5  
10  
2.5  
—
—
—
—
ADT  
—
FZHX  
—
—
—
ADS  
—
FZHU  
—
—
—
—
—
ADD  
—
FZHV  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ADU  
—
FZHY  
—
—
—
—
—
ADF  
FZHZ  
___________________Chip Information  
TRANSISTOR COUNT: 419  
Selector Guide  
(Standard Versions**)  
Ordering Information (continued)  
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  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
3 SOT23-3  
3 SC70-3  
PART  
MAX63 _ _ _ R46-T  
MAX63 _ _ _ R44-T  
MAX63 _ _ _ R31-T  
MAX63 _ _ _ R29-T  
MAX63 _ _ _ R26-T  
MAX63 _ _ _ R23-T  
MAX63 _ _ _ R22-T  
NOMINAL V  
4.63  
(V)  
TH  
MAX6377UR _ _ -T  
MAX6377XR _ _ -T  
MAX6378UR _ _ -T  
MAX6378XR _ _ -T  
MAX6379UR _ _ -T  
MAX6379XR _ _ -T  
MAX6380UR _ _ -T  
MAX6380XR _ _ -T  
4.38  
3 SOT23-3  
3 SC70-3  
3.08  
2.93  
3 SOT23-3  
3 SC70-3  
2.63  
2.32  
3 SOT23-3  
3 SC70-3  
2.20  
**Sample stock is generally held on all standard versions.  
*
Contact factory for availability of nonstandard versions.  
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 stan-  
dard 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 factory for  
availability. All devices available in tape-and-reel only.  
6
_______________________________________________________________________________________  
3-Pin, Ultra-Low-Power SC70/SOT23  
Voltage 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.)  
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.  
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600_____________________ 7  
© 2003 Maxim Integrated Products  
Printed USA  
is a registered trademark of Maxim Integrated Products.  

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