LM96194CISQ/NOPB National Semiconductor, LM96194CISQ/NOPB Datasheet - Page 79

• 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

16.13.11 Register C6h PROCHOT Control
Register
Address
The period of the PWM signal driven on PROCHOT is 3.56 ms (80 internal 22.5 kHz clocks). The asserted time can be increased
in 5 clock increments. 5 clocks is about 220 µs and would represent 6.25% percent throttled.
Possible settings for PHT_DC:
C6h
Read/
Write
R/W
3:0
Bit
4
5
6
7
P1_VRD1_DIS
FORCE_P
PHT_DC
PROCHOT
Name
Register
RES
RES
Override
Name
R/W
R/W
R/W
R/W
R/W
R/W
PHT_DC
Bit 7
RES
Ah
Bh
Ch
Dh
Eh
Fh
0h
1h
2h
3h
4h
5h
6h
7h
8h
9h
PROCHOT duty cycle select.
When this bit is set by software, PROCHOT will not be asserted
when VRD_HOT is asserted.
RESERVED
When this is set by software, PROCHOT will be asserted by the
LM96194 with the duty cycle selected by PHT_DC.
RESERVED
FORCE
Bit 6
_P
79
Bit 5
RES
Asserted Period
10 clocks
15 clocks
20 clocks
25 clocks
30 clocks
35 clocks
40 clocks
45 clocks
50 clocks
55 clocks
60 clocks
65 clocks
70 clocks
75 clocks
80 clocks
5 clocks
Bit 4
_DIS
VRD
Description
Bit 3
Bit 2
PHT_DC
Bit 1
Bit 0
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Default
Value
00h