LM96194CISQ/NOPB National Semiconductor, LM96194CISQ/NOPB Datasheet - Page 75

• 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

16.13.6 Register C1h Fan Boost Hysteresis (Zones 3/4)
If the temperature zone is above fan boost temperature and then drops below the fan boost temperature, the following occurs: the
PWM output remains at 100% until the temperature goes a certain amount below the fan boost temperature. These hysteresis
registers control this amount and can be set anywhere from 0°C to 15°C (unsigned).
Register
Address
C1h
Read/
Write
R/W
3:0
7:4
Bit
(Zones 3/4)
Fan Boost
Hysteresis
Register
Name
Name
H3
H4
Bit 7
R/W
R/W
R/W
Bit 6
Sets the fan boost hysteresis for zone 3 and has 1°C
resolution.
Sets the fan boost hysteresis for zone 4 and has 1°C
resolution.
H4
75
Bit 5
Bit 4
Description
Bit 3
Bit 2
H3
Bit 1
Bit 0
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Default
Value
44h