LM96194CISQ/NOPB National Semiconductor, LM96194CISQ/NOPB Datasheet - Page 45

• Manufacturer Part Number: LM96194CISQ/NOPB
• Description: IC TRUTHERM HDWR MONITOR 48-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®, TruTherm®r

Specifications of LM96194CISQ/NOPB

• Function: Fan Control, Temp Monitor
• Topology: ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM96194CISQTR

Register
Address
Register
Address
16.7.3 Register 33h PWM1 Filter Shutoff Threshold
16.7.4 Register 34h PWM2 Filter Shutoff Threshold
33h
34h
Bit
2:0
7:3
Bit
2:0
7:3
Bit [7:3]
Read/
29
30
31
Read/
Write
Write
0
1
2
R/W
·
·
·
R/W
PWM1_SHUT_DC[4:0]
PWM2_SHUT_DC[4:0]
Bit [7:3]
Register Name
Register Name
29
30
31
0
1
2
·
·
·
PWM1_Filter
Shut_Thresh
PWM2_Filter
Shut_Thresh
Name
Name
RES
RES
9-bit Threshold
232
240
248
16
0
8
Bit 7
Bit 7
·
·
·
R/W
R/W
R/W
R/W
R
R
Bit 6
Bit 6
PWM1_SHUT_DC[4:0]
PWM2_SHUT_DC[4:0]
9-bit Threshold
Description
Reserved
Sets the filter shutoff threshold. The actual duty cycle threshold is 3.15%
times this value. If the PWM filter is disabled the shutdown threshold is also
disabled. The shutdown threshold allows the PWM1 output to be turned off
for duty cycles less than the programmed value.
Description
Reserved
Sets the filter shutoff threshold. The actual duty cycle threshold is 3.15%
times this value. If the PWM filter is disabled the shutdown threshold is also
disabled. The shutdown threshold allows the PWM1 output to be turned off
for duty cycles less than the programmed value.
Bit 5
Bit 5
232
240
248
16
45
0
8
·
·
·
Bit 4
Bit 4
Corresponding Duty Cycle
Bit 3
Bit 3
90.625%
93.750%
96.875%
0.000%
3.125%
6.25%
Bit 2
Bit 2
Corresponding Duty Cycle
RES
RES
·
·
·
90.625%
93.750%
96.875%
Bit 1
Bit 1
RES
RES
0.000%
3.125%
6.25%
·
·
·
Bit 0
Bit 0
RES
RES
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Default
Default
Value
Value
00h
00h