LM96194CISQ/NOPB National Semiconductor, LM96194CISQ/NOPB Datasheet - Page 79
LM96194CISQ/NOPB
Manufacturer Part Number
LM96194CISQ/NOPB
Description
IC TRUTHERM HDWR MONITOR 48-LLP
Manufacturer
National Semiconductor
Series
PowerWise®, TruTherm®r
Datasheet
1.LM96194CISQNOPB.pdf
(106 pages)
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
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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
www.national.com
Default
Value
00h
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