LM80CIMT-3 National Semiconductor, LM80CIMT-3 Datasheet - Page 5

• Manufacturer Part Number: LM80CIMT-3
• Manufacturer: National Semiconductor

Specifications of LM80CIMT-3

• Watchdog Timer: Yes
• Chip Enable Signals: No
• Package Type: TSSOP
• Operating Supply Voltage (min): 2.8V
• Operating Supply Voltage (max): 5.75V
• Operating Temp Range: -25C to 125C
• Operating Temperature Classification: Commercial
• Power Fail Detection: No
• Mounting: Surface Mount
• Pin Count: 24
• Battery Backup Switching: No
• Manual Reset: No
• Lead Free Status / RoHS Status: Not Compliant

FAN RPM-to-DIGITAL CONVERTER
DIGITAL OUTPUTS: A0/NTEST_OUT, INT
V
V
OPEN DRAIN OUTPUTS: GPO, RST_OUT/OS, CI
V
I
OPEN DRAIN SERIAL BUS OUTPUT: SDA
V
I
DIGITAL INPUTS: A0/NTEST_Out, A1-A2, BTI, CI (Chassis Intrusion), INT_IN, and NTEST_IN/Reset_IN
V
V
SERIAL BUS INPUTS (SCL, SDA) and FAN TACH PULSE INPUTS (FAN1, FAN2)
V
V
ALL DIGITAL INPUTS Except for BTI
I
I
C
BTI Digital Input
I
I
C
Symbol
OH
OH
IN(1)
IN(0)
IN(1)
IN(0)
OUT(1)
OUT(0)
OUT(0)
OUT(0)
IN(1)
IN(0)
IN(1)
IN(0)
IN
IN
Fan RPM Error
Full-scale Count
FAN1 and FAN2 Nominal Input
RPM (See Section 6.0)
Internal Clock Frequency
Logical “1” Output Voltage
Logical “0” Output Voltage
Logical “0” Output Voltage
High Level Output Current
RST_OUT/OS, CI
Pulse Width
Logical “0” Output Voltage
High Level Output Current
Logical “1” Input Voltage
Logical “0” Input Voltage
Logical “1” Input Voltage
Logical “0” Input Voltage
Logical “1” Input Current
Logical “0” Input Current
Digital Input Capacitance
Logical “1” Input Current
Logical “0” Input Current
Digital Input Capacitance
Parameter
+25°C
−10°C
−25°C
Divisor = 1, Fan Count = 153
(Note
Divisor = 2, Fan Count = 153
(Note
Divisor = 3, Fan Count = 153
(Note
Divisor = 4, Fan Count = 153
(Note
+25°C
−10°C
−25°C
I
I
I
I
I
I
V
I
I
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
= V
= 0 V
= V
= 0 V
= +5.0 mA at V
= +3.0 mA at V
= −5.0 mA at V
= −3.0 mA at V
=− 5.0 mA at V
= −3.0 mA at V
= −3.0 mA at V
= −3.0 mA at V
= V
= V
5
12)
12)
12)
12)
≤
≤
≤
≤
≤
≤
+
+
+
+
T
T
T
T
T
T
DC
DC
A
A
A
A
A
A
Conditions
≤
≤
≤
≤
≤
≤
+75°C
+100°C
+125°C
+75°C
+100°C
+125°C
+
+
+
+
+
+
+
+
= +5.75V,
= +4.25V,
= +2.8V
= +5.75V,
= +3.8V
= +5.75V,
= +3.8V
= +3.8V
(Note
Typical
−0.005
0.005
8800
4400
2200
1100
22.5
22.5
22.5
500
0.1
0.1
30
20
−1
20
8)
(Note
0.7 × V
0.3 × V
Limits
2000
20.2
24.8
19.1
25.9
±10
±15
±20
−10
255
100
100
2.4
0.4
0.4
0.4
2.0
0.8
−1
18
27
10
1
9)
+
+
www.national.com
kHz (max)
kHz (max)
kHz (max)
kHz (min)
kHz (min)
kHz (min)
μA (max)
μA (max)
μA (max)
μA (max)
ms (min)
μA (min)
μA (min)
(Limits)
% (max)
% (max)
% (max)
V (max)
V (max)
V (max)
V (min)
V (min)
V (min)
V (min)
V (min)
Units
(max)
RPM
RPM
RPM
RPM
pF
pF