Note 3) – Rainbow Electronics LM93 User Manual
Page 89
20068203
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: All voltages are measured with respect to GND, unless otherwise noted.
Note 3: When the input voltage (V
IN
) at any pin exceeds the power supplies (V
IN
<
(GND or AGND) or V
IN
>
V
DD
, except for analog voltage inputs), the current
at that pin should be limited to 10 mA. The 100 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with
an input current of 10 mA to ten. Parasitic components and/or ESD protection circuitry are shown below for the LM93’s pins. Care should be taken not to forward
bias the parasitic diode, D1, present on pins D+ and D−. Doing so by more than 50 mV may corrupt temperature measurements. An “U” in the table below indicates
that the device is connected to the pin listed. D3 and the ESD Clamp are connected between V+ (V
DD
, AD_IN16) and GND. SNP stands for snap-back device.
20068204
Symbol
Pin #
D1
D2
D4
D5
D6
SNP
R1
GPIO_0/TACH1
1
U
U
U
50
Ω
GPIO_1/TACH2
2
U
U
U
50
Ω
GPIO_2/TACH3
3
U
U
U
50
Ω
GPIO_3/TACH4
4
U
U
U
50
Ω
GPIO_4 /
P1_THERMTRIP
5
U
U
U
50
Ω
GPIO_5 /
P2_THERMTRIP
6
U
U
U
50
Ω
GPIO_6
7
U
U
U
50
Ω
GPIO_7
8
U
U
U
50
Ω
VRD1_HOT
9
U
U
VRD2_HOT
10
U
U
SCSI_TERM1
11
U
U
SCSI_TERM2
12
U
U
SMBDAT
13
U
U
SMBCLK
14
U
U
ALERT/XtestOut
15
U
U
RESET
16
U
U
AGND
17
Internally shorted to GND pin.
V
REF
18
U
U
REMOTE1–
19
U
U
U
U
U
50
Ω
REMOTE1+
20
U
U
U
U
50
Ω
REMOTE2–
21
U
U
U
U
U
50
Ω
REMOTE+
22
U
U
U
U
50
Ω
LM93
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