MAX6505UTP100+ [MAXIM]

Analog Circuit, 1 Func, BICMOS, PDSO6, ROHS COMPLIANT, SOT-23, 6 PIN;
MAX6505UTP100+
型号: MAX6505UTP100+
厂家: MAXIM INTEGRATED PRODUCTS    MAXIM INTEGRATED PRODUCTS
描述:

Analog Circuit, 1 Func, BICMOS, PDSO6, ROHS COMPLIANT, SOT-23, 6 PIN

信息通信管理 光电二极管 输出元件
文件: 总10页 (文件大小:250K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
19-1712; Rev 1; 2/11  
Dual Trip SOT Temperature Switches  
–MAX6508  
General Description  
Features  
The MAX6505–MAX6508 temperature switches have dual  
logic outputs that assert when the die temperature cross-  
es their trip thresholds. Trip thresholds are factory pro-  
grammed to convenient temperatures in 5°C increments.  
0.5°C (typ) Threshold Accuracy Over Full  
Temperature Range  
No External Components Required  
Low Cost  
30µA (typ) Supply Current  
Factory-Programmed Thresholds from -40°C to  
+125°C in 5°C Increments  
The MAX6505/MAX6506 have an ALARM output that  
asserts when the temperature is above the factory-pro-  
grammed thresholds (available from -40°C to +125°C).  
They also have a WARN output that asserts when the  
temperature is several degrees below the ALARM thresh-  
old. The difference between the ALARM and WARN  
Open-Drain Outputs (MAX6505/MAX6507),  
Push-Pull Outputs (MAX6506/MAX6508)  
Pin Selectable 2°C, 10°C Hysteresis  
(MAX6507/MAX6508)  
thresholds (ΔT ) is pin selectable to +5°C, +10°C,  
AW  
+20°C, or +30°C. The MAX6505’s logic outputs are open  
drain, while the MAX6506’s logic outputs are push-pull.  
Pin Selectable +5°C, +10°C, +20°C, +30°C  
The MAX6507 has open-drain outputs (OVER, OK), and  
the MAX6508 has push-pull outputs (OVER, OK), each  
with two factory-programmed threshold temperatures  
T
- T  
(MAX6505/MAX6506)  
ALARM  
WARN  
SOT23 Package  
(T  
and T  
) in the wide range of -40°C to  
UNDER  
OVER  
+125°C. The overtemperature output asserts when the  
temperature is above T . When the temperature is in  
Ordering Information  
OVER  
PART  
TEMP RANGE PIN-PACKAGE  
-40°C to +125°C 6 SOT23  
-40°C to +125°C 6 SOT23  
-40°C to +125°C 6 SOT23  
the desired window (less than T  
and greater than  
OVER  
T ), OK (OK) asserts.  
UNDER  
MAX6505UT_ _ _ _+T  
MAX6506UT_ _ _ _+T  
MAX6507UT_ _ _ _+T  
The MAX6505–MAX6508 are accurate to 0.5°C (typ),  
5.5°C (max). Operating from a +2.5V to +5.5V supply,  
these low-cost devices typically consume 30µA supply  
current and require no external components for setting  
trip points. The MAX6505–MAX6508 are available in a  
6-pin SOT23 package.  
MAX6508UT_ _ _ _+T -40°C to +125°C 6 SOT23  
Note: To complete the suffix information for the MAX6505/  
MAX6506, add P or N for positive or negative trip tempera-  
ture, and select an available trip point in degrees centigrade.  
For example, the MAX6505UTP055+T describes a MAX6505 in  
a SOT23 package with a +55°C threshold (Table 3). Contact  
the factory for pricing and availability of temperature versions  
(minimum order 10,000 pieces).  
To complete the suffix information for MAX6507/MAX6508, see  
Table 4.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
T = Tape and reel.  
________________________Applications  
µP Temperature Monitoring in High-Speed  
Computers  
Temperature Control  
Temperature Alarms  
Fan Control  
Selector Guide appears at end of data sheet.  
Typical Operating Circuits appear at end of data sheet.  
Pin Configurations  
TOP VIEW  
+
+
WARN  
(WARN)  
ALARM  
(ALARM)  
OK  
(OK)  
OVER  
(OVER)  
1
2
3
6
5
4
1
2
3
6
5
4
MAX6505  
MAX6506  
MAX6507  
MAX6508  
GND  
S1  
S0  
GND  
S0  
N.C.  
V
CC  
V
CC  
( ) ARE FOR MAX6506.  
( ) ARE FOR MAX6508.  
SOT23  
SOT23  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
Dual Trip SOT Temperature Switches  
ABSOLUTE MAXIMUM RATINGS  
Supply Voltage (V  
to GND) ..................................-0.3V to +6V  
Operating Temperature Range (T  
to T )..-40°C to +125°C  
MAX  
CC  
MIN  
S1, S0 to GND ............................................-0.3V to (V  
All Other Pins to GND.................................-0.3V to (V  
Input/Output Current, All Pins........................................... 20mA  
+ 0.3V)  
+ 0.3V)  
Thermal Resistance (θ )...............................................115°C/W  
CC  
CC  
JA  
Storage Temperature Range.............................-65°C to +150°C  
Maximum Die Temperature..............................................+150°C  
Lead Temperature (soldering, 10s) .................................+300°C  
Soldering Temperature (reflow) .......................................+260°C  
Continuous Power Dissipation (T = +70°C)  
A
SOT23 (derate 8.7mW/°C above +70°C)....................696mW  
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  
= +2.5V to +5.5V, R  
= 100kΩ (MAX6505/MAX6507 only), T = -40°C to +125°C, unless otherwise noted. Typical values  
CC  
PULLUP A  
= +5V, unless otherwise noted.) (Note 1)  
are at T = +25°C and V  
A
CC  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Supply Voltage Range  
V
2.5  
5.5  
V
CC  
MAX6505/  
MAX6506  
–MAX6508  
S0 = S1 = GND  
S0 = GND  
40  
30  
80  
60  
Supply Current  
I
μA  
°C  
°C  
CC  
MAX6507/  
MAX6508  
-40°C to 0°C  
-5.5  
-3.5  
-4  
0.5  
0.5  
0.5  
5
5.5  
3.5  
4
Temperature Threshold  
Accuracy (Note 2)  
ΔT  
ΔT  
0°C to +95°C  
TH  
+95°C to +125°C  
S1 = GND, S0 = GND  
Delta Temperature  
S1 = GND, S0 = V  
10  
20  
30  
2
CC  
(T  
-T  
)
ALARM WARNING  
AW  
S1 = V , S0 = GND  
CC  
MAX6505/MAX6506  
S1 = V , S0 = V  
CC  
CC  
ALARM (MAX6505/MAX6506)  
ΔT  
10°C  
= 5°C or  
AW  
5
WARN  
(MAX6505/MAX6506)  
Temperature Threshold  
Hysteresis (Note 3)  
ΔT  
30°C  
= 20°C or  
AW  
T
HYST  
°C  
10  
S0 = GND  
2
OK, OVER  
(MAX6507/MAX6508)  
S0 = V  
10  
CC  
0.8 x  
V
IH  
V
Logic Input Levels (S1, S0)  
CC  
V
V
0.8  
IL  
0.8 x  
I
I
= 500μA, V  
> 2.5V  
SOURCE  
SOURCE  
CC  
V
CC  
Output Voltage High  
(MAX6506/MAX6508)  
V
V
V
OH  
V
CC  
= 800μA,V  
> 4.5V  
CC  
-1.5  
I
I
= 3.2mA, V > 2.5V  
0.5  
0.5  
SINK  
SINK  
CC  
Output Voltage Low  
V
OL  
= 5mA, V > 4.5V  
CC  
2
_______________________________________________________________________________________  
Dual Trip SOT Temperature Switches  
–MAX6508  
ELECTRICAL CHARACTERISTICS (continued)  
(V  
= +2.5V to +5.5V, R  
= 100kΩ (MAX6505/MAX6507 only), T = -40°C to +125°C, unless otherwise noted. Typical values  
CC  
PULLUP A  
= +5V, unless otherwise noted.) (Note 1)  
are at T = +25°C and V  
A
CC  
PARAMETER  
SYMBOL  
CONDITIONS  
= 5.5V, V = 5.5V,  
ALARM  
MIN  
TYP  
MAX  
UNITS  
V
V
CC  
1
= 5.5V (MAX6505)  
WARN  
Open-Drain Output Leakage  
Current  
μA  
V
V
= 5.5V, V  
= 5.5V,  
CC  
OK  
1
= 5.5V (MAX6507)  
OVER  
Note 1: 100% production tested at T = +25°C. Specifications over temperature limits are guaranteed by design.  
A
Note 2: T  
, T  
, and T  
are factory-programmed temperature trip thresholds from -40°C to +125°C in 5°C increments.  
ALARM UNDER  
OVER  
Note 3: Temperature threshold hysteresis is defined as the difference from positive-going temperature thresholds minus the nega-  
tive-going temperature thresholds.  
Typical Operating Characteristics  
(V = +5V, unless otherwise noted.)  
CC  
SUPPLY CURRENT  
vs. TEMPERATURE  
TRIP-POINT ERROR (%)  
vs. SUPPLY VOLTAGE  
HYSTERESIS vs. TRIP TEMPERATURE  
50  
2.5  
2.0  
0.1  
0
V
R
= +5V  
V
R
= +5V  
CC  
PULLUP  
CC  
PULLUP  
= 100kΩ  
= 100kΩ  
45  
40  
35  
30  
25  
20  
-0.1  
-0.2  
-0.3  
-0.4  
-0.5  
-0.6  
-0.7  
-0.8  
1.5  
1.0  
0.5  
NORMALIZED TO TRIP-POINT  
TEMPERATURE AT V = +5V  
CC  
-40 -25 -10  
5
20 35 50 65 80 95 110 125  
-40 -25 -10  
5 20 35 50 65 80 95 110 125  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
SUPPLY VOLTAGE (V)  
MAX6505  
MAX6505  
STARTUP AND POWER-DOWN  
(T < T  
STARTUP DELAY  
(T > T  
)
TH  
)
TH  
A
A
2V/div  
2V/div  
B
B
100µs/div  
B: ALARM VOLTAGE, R = 100kΩ  
100µs/div  
B: ALARM VOLTAGE, R = 100kΩ  
A: V PULSE  
A: V PULSE  
CC  
CC  
PULLUP  
PULLUP  
_______________________________________________________________________________________  
3
Dual Trip SOT Temperature Switches  
Pin Description  
PIN  
NAME  
FUNCTION  
MAX6505  
MAX6506  
MAX6507  
MAX6508  
Open-Drain Active-Low Warning Output. WARN goes low  
when the die temperature exceeds T  
= T  
-
1
-—  
-—  
WARN  
WARN  
ALARM  
ΔT  
AW.  
Push-Pull Active-High Warning Output. WARN goes high  
when the die temperature exceeds T = T  
-—  
2
1
2
-—  
2
-—  
2
WARN  
GND  
-
ALARM  
WARN  
ΔT  
AW.  
Ground  
Delta Temperature Select Input. Connect to V  
or GND to  
CC  
3, 5  
3, 5  
-—  
-—  
S1, S0  
select the difference between T  
and T  
(Table  
ALARM  
WARN  
1 or see Electrical Characteristics).  
Hysteresis Select Input. Connect to V  
hysteresis. Connect to GND for 2°C hysteresis.  
for 10°C  
CC  
-—  
-—  
3
3
S0  
–MAX6508  
Supply Voltage Input. Bypass V  
ceramic capacitor.  
to GND with a 0.1μF  
CC  
4
4
4
5
4
5
V
CC  
-—  
-—  
N.C.  
No Connection. Not internally connected.  
Open-Drain Active-Low Overtemperature Output.  
OVER  
-—  
-—  
-—  
-—  
6
_
-—  
6
goes low when the die temperature exceeds the factory-  
set value of T  
Push-Pull Active-High Overtemperature Output. OVER  
goes high when the die temperature exceeds the factory-  
OVER  
.
OVER  
OVER  
OK  
set value of T  
OVER.  
Open-Drain Active-High Temperature Sensor Output. OK  
goes high impedance when the die temperature is  
-—  
-—  
-—  
-—  
1
-—  
between the factory-set values of T  
and T  
.
UNDER  
OVER  
When the die temperature is above T  
or below  
OVER  
T
, OK goes low.  
UNDER  
Push-Pull Active-Low Temperature Sensor Output. OK  
goes low when the die temperature is between the factory-  
-—  
OK  
1
set values of T  
and T  
. When the die temp-  
UNDER  
OVER  
erature is above T  
or below T  
, OK goes high.  
UNDER  
OVER  
Open-Drain Active-Low Alarm Output. ALARM goes low  
when the die temperature exceeds the factory-set value of  
6
-—  
6
-—  
-—  
-—  
-—  
ALARM  
T
.
ALARM  
Push-Pull Active-High Alarm Output. ALARM goes high  
when the die temperature exceeds the factory-set value of  
-—  
ALARM  
T
.
ALARM  
4
_______________________________________________________________________________________  
Dual Trip SOT Temperature Switches  
–MAX6508  
_______________Detailed Description  
Table 1. MAX6505/MAX6506 ΔT  
Selection Table  
AW  
The MAX6505–MAX6508 fully integrated temperature  
switches incorporate two temperature-dependent refer-  
ences and a comparator. One reference exhibits a pos-  
itive temperature coefficient and the other a negative  
temperature coefficient. The temperature at which the  
two reference voltages are equal determines the tem-  
perature trip point. There are two versions, each of  
which has two logic outputs.  
CONTROL PINS  
DESCRIPTION  
T  
AW  
=T  
– T  
ALARM WARN  
S1  
S0  
(°C)  
GND  
GND  
GND  
5
V
CC  
10  
20  
30  
V
GND  
CC  
CC  
The MAX6505/MAX6506 have a main trip point (T  
)
ALARM  
). When the die  
V
V
CC  
and a lower, “warning” trip point (T  
WARN  
temperature rises above these trip points, the ALARM  
and WARN outputs are asserted (Figure 1). The differ-  
HYSTERESIS 2°C  
ence between the two trip points (ΔT ) is pin selec-  
AW  
table to +5°C, +10°C, +20°C, or +30°C by connecting  
the two control pins (S0 and S1) high or low (Table 1).  
MAX6505 has open-drain active-low outputs; MAX6506  
has push-pull active-high outputs.  
65°C  
55°C  
The MAX6507/MAX6508 have two factory-programmed  
HYSTERESIS 5°C  
threshold temperatures (T  
and T  
) and two  
UNDER  
OVER  
outputs (OK and OVER). One output (OK) asserts  
when the temperature is between T and T  
.
UNDER  
OVER  
WARN  
The other output (OVER) asserts when the temperature  
is above T . Table 4 shows the hex codes to deter-  
OVER  
mine the part numbers associated with specific values  
of T and T . The first hex code indicates the  
OVER  
UNDER  
UNDER  
lower trip point (T  
) and the second indicates the  
ALARM  
higher trip point (T  
). For example, a part with T  
OVER  
OVER  
UN-  
= -10°C and T  
= +75°C will have the part  
DER  
number MAX6508UTA04B (Table 4 and Figure 2).  
MAX6507 has open-drain outputs; MAX6508 has push-  
pull outputs.  
Figure 1. Temperature Response—MAX6505UTP065 Outputs,  
ΔT = 10°C, and WARN Hysteresis 5°C  
AW  
Hysteresis Selection  
some applications, the SOT23 packages may be small  
enough to fit underneath a socketed microprocessor  
(µP), allowing the device to monitor the µP’s tempera-  
ture directly. Use the monitor’s output to reset the µP,  
assert an interrupt, or trigger an external alarm.  
Accurate temperature monitoring depends on the ther-  
mal resistance between the device being monitored  
and the MAX6505–MAX6508 die.  
The temperature threshold hysteresis for the ALARM  
output of the MAX6505/MAX6506 is 2°C. The hysteresis  
for the WARN output depends on the value of ΔT . If  
AW  
ΔT  
is 5°C or 10°C (set by S0 and S1), WARN hys-  
AW  
teresis is 5°C. If ΔT  
is 20°C or 30°C, WARN hystere-  
AW  
sis is 10°C. MAX6507 and MAX6508 have pin-selectable  
hysteresis of 2°C or 10°C for both OVER and OK out-  
puts (Table 2).  
The rise in die temperature due to self-heating is given  
by the following formula:  
Applications Information  
ΔT = P  
θ
JA  
J
DISSIPATION  
Thermal Considerations  
The MAX6505–MAX6508 supply current is typically  
30µA. When used to drive high-impedance loads, the  
devices dissipate negligible power. Therefore, the die  
temperature is essentially the same as the package  
temperature. The key to accurate temperature monitor-  
ing is good thermal contact between the MAX6505–  
MAX6508 package and the device being monitored. In  
where P  
is the power dissipated by the  
DISSIPATION  
MAX6505–MAX6508, and θ is the package’s thermal  
JA  
resistance. The typical thermal resistance is 115°C/W for  
the SOT23 package. To limit the effects of self-heating,  
minimize the output currents. For example, if the  
MAX6505 sinks 5mA, the output voltage is guaranteed to  
be less than 0.5V. Therefore, an additional 2.5mW of  
_______________________________________________________________________________________  
5
Dual Trip SOT Temperature Switches  
Table 2. Hysteresis Selection  
TYPICAL THRESHOLD HYSTERESIS  
PART  
ALARM  
2°C  
CONDITIONS  
WARN  
5°C  
CONDITIONS  
OK, OVER  
ΔT  
= 5°C or 10°C  
= 20°C or 30°C  
WA  
MAX6505  
MAX6506  
10°C  
ΔT  
WA  
-—  
2°C  
S0 = GND  
S0 = V  
MAX6507  
MAX6508  
-—  
10°C  
CC  
+2.5V TO +5.5V  
HYSTERESIS 2°C  
+75°C  
TEMPERATURE  
-10°C  
HYSFERESIS 2°C  
-10°C  
V
CC  
SYSTEM  
SHUTDOWN  
*
S1  
S0  
ALARM  
–MAX6508  
MAX6506  
WARN  
FAN CONTROL  
OVER  
GND  
OK  
*ΔT = T  
- T  
IS SET TO +30°C.  
AW  
ALARM WARN  
Figure 3. Low-Power, High-Reliability, Fail-Safe Temperature  
Monitor  
Figure 2. Temperature Response—MAX6507A04B Outputs  
with 2°C Hysteresis  
power is dissipated within the IC. This corresponds to a  
+0.288°C shift in the die temperature in the SOT23.  
The high-level integration, low cost, and small size of the  
MAX6505–MAX6508 facilitate the use of multiple temper-  
ature monitors to increase system reliability.  
Power Supply and Bypassing  
The MAX6505 and MAX6508 operate from a single-  
supply voltage in the +2.5V to +5.5V range. Connect a  
0.1µF capacitor on the supply voltage line close to the  
V
CC  
pin for bypassing.  
Low-Cost, Fail-Safe Temperature Monitor  
The MAX6505/MAX6506 provide two outputs that can be  
used for fail-safe temperature applications (Figure 3). For  
example, the first output can activate a fan when the die  
temperature exceeds a certain preset temperature. The  
second output asserts at a higher temperature that could  
be caused by a wide variety of destructive fault condi-  
tions, including latchup, short circuit, and cooling system  
failure. This output can be used to initiate such actions  
as shutdown of the entire system (see Typical Operating  
Circuits).  
6
_______________________________________________________________________________________  
Dual Trip SOT Temperature Switches  
–MAX6508  
Table 3. MAX6505/MAX6506 Suffix and Top Mark Codes  
TRIP POINT  
TRIP POINT  
PART  
SUFFIX  
TOP MARK  
PART  
SUFFIX  
TOP MARK  
(°C)  
(°C)  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
MAX6505  
UTN035  
UTN030  
UTN025  
UTN020  
UTN015  
UTN010  
UTN005  
UTP000  
UTP005  
UTP010  
UTP015  
UTP020  
UTP025  
UTP030  
UTP035  
UTP040  
UTP045  
UTP050  
UTP055  
UTP060  
UTP065  
UTP070  
UTP075  
UTP080  
UTP085  
UTP090  
UTP095  
UTP100  
UTP105  
UTP110  
UTP115  
UTP120  
UTP125  
-35  
-30  
-25  
-20  
-15  
-10  
-5  
AAKK  
AAKL  
AAKM  
AAKN  
AAKO  
AAKP  
AAKQ  
AAKR  
AAKS  
AAKT  
AAKU  
AAKV  
AAKW  
AAKX  
AAKY  
AAKZ  
AALA  
AALB  
AALC  
AALD  
AALE  
AALF  
AALG  
AALH  
AALI  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
MAX6506  
UTN035  
UTN030  
UTN025  
UTN020  
UTN015  
UTN010  
UTN005  
UTP000  
UTP005  
UTP010  
UTP015  
UTP020  
UTP025  
UTP030  
UTP035  
UTP040  
UTP045  
UTP050  
UTP055  
UTP060  
UTP065  
UTP070  
UTP075  
UTP080  
UTP085  
UTP090  
UTP095  
UTP100  
UTP105  
UTP110  
UTP115  
UTP120  
UTP125  
-35  
-30  
-25  
-20  
-15  
-10  
-5  
AALR  
AALS  
AALT  
AALU  
AALV  
AALW  
AALX  
AALY  
AALZ  
AAMA  
AAMB  
AAMC  
AAMD  
AAME  
AAMF  
AAMG  
AAMH  
AAMI  
0
0
5
5
10  
10  
15  
15  
20  
20  
25  
25  
30  
30  
35  
35  
40  
40  
45  
45  
50  
50  
55  
55  
AAMJ  
AAMK  
AAML  
AAMM  
AAMN  
AAMO  
AAMP  
AAMQ  
AAMR  
AAMS  
AAMT  
AAMU  
AAMV  
AAMW  
AAMX  
60  
60  
65  
65  
70  
70  
75  
75  
80  
80  
85  
85  
90  
AALJ  
AALK  
AALL  
AALM  
AALN  
AALO  
AALP  
AALQ  
90  
95  
95  
100  
105  
110  
115  
120  
125  
100  
105  
110  
115  
120  
125  
_______________________________________________________________________________________  
7
Dual Trip SOT Temperature Switches  
Temperature-Window Alarm  
Table 4. MAX6507/MAX6508 Trip  
Temperature Code  
The MAX6507 and MAX6508 have an output (OK, OK)  
that indicates the die temperature is within the selected  
temperature window. This output is asserted when  
within the window, and deasserted when outside the  
window. Additionally, a second digital output indicates  
when the die temperature is above the upper set point.  
This is useful in systems where operation is optimized  
over a predetermined temperature range. The thermal  
overrange signal can be used to assert a thermal shut-  
down, power-up, recalibration, or other temperature-  
dependent function (Figure 4 and Typical Operating  
Circuits).  
TRIP TEMPERATURE (°C)  
HEX CODE*  
-40  
-35  
-30  
-25  
-20  
-15  
-10  
-5  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
55  
60  
65  
70  
75  
80  
85  
90  
95  
100  
105  
110  
115  
120  
82  
87  
8C  
91  
96  
9B  
A0  
A5  
00  
05  
0A  
0F  
14  
19  
1E  
23  
28  
2D  
32  
37  
3C  
41  
46  
4B  
50  
55  
5A  
5F  
64  
69  
6E  
73  
78  
+2.5V TO +5.5V  
V
CC  
–MAX6508  
S0  
OUT OF RANGE  
SHUTDOWN  
OK  
MAX6508  
OVER  
GND  
Figure 4. Temperature-Window Alarms  
Chip Information  
PROCESS: BiCMOS  
Package Information  
For the latest package outline information and land patterns  
(footprints), go to www.maxim-ic.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.  
125  
7D  
PACKAGE  
TYPE  
PACKAGE  
CODE  
OUTLINE  
NO.  
LAND  
*Two hex codes are used in the suffix. The first indicates the  
the low trip temperature and the second indicates the high trip  
temperature. For example, the MAX6507UT8255+T has a lower  
trip point of -40°C and an upper trip point of +85°C.  
PATTERN NO.  
6 SOT23  
U6SN+1  
21-0058  
90-0175  
8
_______________________________________________________________________________________  
Dual Trip SOT Temperature Switches  
–MAX6508  
Typical Operating Circuits  
V
CC  
+2.5V TO +5.5V  
FAN  
+2.5V TO +5.5V  
R
1
R
2
V
CC  
V
CC  
V
CC  
S0  
S1  
S0  
S1  
WARN  
WARN  
INT  
μP  
MAX6506  
MAX6505  
ALARM  
SHDN  
ALARM  
GND  
GND  
GND  
V
CC  
INT  
μP  
V
CC  
GND  
FAN  
+2.5V TO +5.5V  
V
CC  
OVER  
OK  
V
CC  
MAX6508  
S0  
INT  
μP  
GND  
GND  
Selector Guide  
TEMPERATURE THRESHOLD  
RANGE  
PART  
OUTPUT LOGIC  
OUTPUT STAGE  
MAX6505  
MAX6506  
MAX6507  
MAX6508  
ALARM, WARN  
ALARM, WARN  
OVER, OK  
Open Drain  
Push-Pull  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
Open Drain  
Push-Pull  
OVER, OK  
_______________________________________________________________________________________  
9
Dual Trip SOT Temperature Switches  
Revision History  
REVISION REVISION  
DESCRIPTION  
PAGES  
CHANGED  
NUMBER  
DATE  
0
4/00  
Initial release  
Changed all leaded parts to lead(Pb)-free parts in the Ordering Information table; in  
the Absolute Maximum Ratings section changed the continuous power dissipation  
numbers (7.1mW/°C to 8.7mW/°C and 571mW to 696mW) and added the soldering  
temperature; added the Package Information table  
1
2/11  
1, 2, 8  
–MAX6508  
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.  
10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600  
© 2011 Maxim Integrated Products  
Maxim is a registered trademark of Maxim Integrated Products, Inc.  

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