LM96000CIMT/NOPB National Semiconductor, LM96000CIMT/NOPB Datasheet - Page 18

• Manufacturer Part Number: LM96000CIMT/NOPB
• Description: IC HDWR MON W/FAN CTRL 24-TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM96000CIMT/NOPB

• Function: Fan Control, Temp Monitor
• Topology: ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 2.5°C
• Temperature Sensing Range: 0°C To +85°C
• Supply Current: 530µA
• Supply Voltage Range: 3V To 3.6V
• Resolution (bits): 8bit
• Sensor Case Style: TSSOP
• No. Of Pins: 24
• Rohs Compliant: Yes
• Accuracy %: 3°C
• For Use With: LM96000EVAL - BOARD EVALUATION LM96000
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM96000CIMT; *LM96000CIMT/NOPB; LM96000CIMT

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Register
Address
44h
45h
46h
47h
48h
49h
4Ah
4Bh
4Ch
4Dh
Input
2.5V
VCCP
3.3V
5V
12V
4.11 Registers 44-4Dh: Voltage Limit Registers
If a voltage input either exceeds the value set in the voltage high limit register or falls below the value set in the voltage low limit
register, the corresponding bit will be set automatically by the LM96000 in the interrupt status registers (41-42h). Voltages are
presented in the registers at ¾ full scale for the nominal voltage, meaning that at nominal voltage, each input will be C0h, as shown
in Table 2.
Setting the Ready/Lock/Start/Override register Lock bit has no effect on these registers.
Nominal
Voltage
2.5V
2.25V
3.3V
5.0V
12.0V
Read/
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Register Setting at
Nominal Voltage
C0h
C0h
C0h
C0h
C0h
Register
Name
2.5V Low Limit
2.5V High Limit
VCCP Low Limit
VCCP High Limit
3.3V Low Limit
3.3V High Limit
5V Low Limit
5V High Limit
12V Low Limit
12V High Limit
TABLE 2. Voltage Limits vs Register Setting
Maximum
Voltage
3.32V
3.00V
4.38V
6.64V
16.00V
Bit 7
(MSB)
7
7
7
7
7
7
7
7
7
7
Bit 6
6
6
6
6
6
6
6
6
6
6
Register Reading at
Maximum Voltage
FFh
FFh
FFh
FFh
FFh
18
Bit 5
5
5
5
5
5
5
5
5
5
5
Bit 4
4
4
4
4
4
4
4
4
4
4
Bit 3
3
3
3
3
3
3
3
3
3
3
Minimum
Voltage
0V
0V
3.0V
0V
0V
Bit 2
2
2
2
2
2
2
2
2
2
2
Bit 1
1
1
1
1
1
1
1
1
1
1
Register Reading at
Minimum Voltage
00h
00h
AFh
00h
00h
Bit 0
(LSB)
0
0
0
0
0
0
0
0
0
0
Default
Value
00h
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh