Datasheet

11
12
13
14
SMBus
Master
* Note, place close to LM95234 pins.
** Note, optional - place close to LM95234 pins.
LM95234
1
2
3
4
NC
V
DD
D4+
D3+
SMBCLK
C1*
100 pF
C2
0.1 PF
SMBCLK
SMBDAT
C7**
100 pF
+3.3V
Standby
R4
1.3k
R5
1.3k
D-
D2+
D1+
5
6
7
8
9
10
A0
SMBDAT
PROCESSOR
Q2
MMBT3904
Q1
MMBT3904
C6**
100 pF
C4**
100 pF
C5**
100 pF
R3
10k
R2
10k
R1
10k
SO
DIMM
HDD
GPU
C3
10 PF
TCRIT2
TCRIT1
TCRIT3
GND
LM95234
SNIS136D AUGUST 2006REVISED MARCH 2013
www.ti.com
Typical Application
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)
Supply Voltage 0.3V to 6.0V
Voltage at SMBDAT, SMBCLK, TCRIT1, TCRIT2, TCRIT3 0.5V to 6.0V
Voltage at Other Pins 0.3V to (V
DD
+ 0.3V)
D Input Current ±1 mA
Input Current at All Other Pins
(2)
±5 mA
Package Input Current
(2)
30 mA
SMBDAT, TCRIT1, TCRIT2, TCRIT3 Output Sink Current 10 mA
Storage Temperature 65°C to +150°C
ESD Susceptibility
(3)
Human Body Model 2000V
Machine Model 200V
Charge Device Model 1000V
Soldering process must comply with TI’s reflow temperature profile specifications. Refer to http://www.ti.com/packaging
(4)
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not
apply when operating the device beyond its rated operating conditions.
(2) When the input voltage (V
I
) at any pin exceeds the power supplies (V
I
< GND or V
I
> V
DD
), the current at that pin should be limited to 5
mA. Parasitic components and or ESD protection circuitry are shown in Table 1 for the LM95234's pins.
(3) Human body model, 100 pF discharged through a 1.5 kΩ resistor. Machine model, 200 pF discharged directly into each pin. Charged
Device Model (CDM) simulates a pin slowly acquiring charge (such as from a device sliding down the feeder in an automated
assembler) then rapidly being discharged.
(4) Reflow temperature profiles are different for packages containing lead (Pb) than for those that do not.
Operating Ratings
Operating Temperature Range 40°C to +140°C
Electrical Characteristics Temperature Range T
MIN
T
A
T
MAX
LM95234CISD 40°C T
A
+125°C
Supply Voltage Range (V
DD
) +3.0V to +3.6V
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