MAX16031ETM+ Maxim Integrated Products, MAX16031ETM+ Datasheet - Page 18

• Manufacturer Part Number: MAX16031ETM+
• Description: IC SYSTEM MON EEPROM 48-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Multi-Voltage Supervisorr

Specifications of MAX16031ETM+

• Number Of Voltages Monitored: 8
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: Adjustable/Selectable
• Voltage - Threshold: 8 Selectable Threshold Combinations
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFN Exposed Pad
• Manual Reset: Resettable
• Watchdog: No Watchdog
• Supply Voltage (max): 14 V
• Supply Voltage (min): 2.9 V
• Supply Current (typ): 3000 uA
• Maximum Power Dissipation: 2222.2 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

a -1V differential input (range of 5.6V) gives a decimal
code of -183, which is 1101001001 in two’s comple-
ment binary form. In single-ended mode, conversions
are performed between a single input and ground.
When single-ended mode is selected, conversions are
always unipolar regardless of r1Ch[7:4]. The single-
ended and pseudo-differential ADC mode equations
are shown below.
Unipolar single-ended mode:
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 3. IN1–IN8 ADC Input Mode Selection
18
REGISTER
ADDRESS
______________________________________________________________________________________
1Ch
X
ADC
ADDRESS
MEMORY
EEPROM
=
INT
9Ch
⎛
⎜
⎝
V
RANGE
V
IN
−
×
BIT RANGE
1024
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
⎞
⎟
⎠
IN1/IN2 Single-Ended/Pseudo-Differential:
0 = IN1 and IN2 conversions are single-ended.
1 = IN1 and IN2 conversions are pseudo-differential (IN1 to IN2).
IN3/IN4 Single-Ended/Pseudo-Differential:
0 = IN3 and IN4 conversions are single-ended.
1 = IN3 and IN4 conversions are pseudo-differential (IN3 to IN4).
IN5/IN6 Single-Ended/Pseudo-Differential:
0 = IN5 and IN6 conversions are single-ended.
1 = IN5 and IN6 conversions are pseudo-differential (IN5 to IN6).
IN7/IN8 Single-Ended/Pseudo-Differential:
0 = IN7 and IN8 conversions are single-ended.
1 = IN7 and IN8 conversions are pseudo-differential (IN7 to IN8).
IN1/IN2 Unipolar/Bipolar:
0 = IN1 and IN2 conversions are unipolar.
1 = IN1 and IN2 conversions are bipolar (two’s complement).
IN3/IN4 Unipolar/Bipolar:
0 = IN3 and IN4 conversions are unipolar.
1 = IN3 and IN4 conversions are bipolar (two’s complement).
IN5/IN6 Unipolar/Bipolar:
0 = IN5 and IN6 conversions are unipolar.
1 = IN5 and IN6 conversions are bipolar (two’s complement).
IN7/IN8 Unipolar/Bipolar:
0 = IN7 and IN8 conversions are unipolar.
1 = IN7 and IN8 conversions are bipolar (two’s complement).
where X
voltage at a voltage monitoring input, and V
the selected range programmed in r17h and r18h.
Bipolar/unipolar pseudo-differential mode:
where X
voltage at a positive input of a differential voltage moni-
toring input pair, V
a differential voltage monitoring input pair, and V
is the selected ADC IN_ voltage range programmed in
r17h and r18h.
X
ADC
=
ADC
ADC
INT
⎛
⎜
⎝
is the resulting code in decimal, V
is the resulting code in decimal, V
V
RANGE
V
DESCRIPTION
IN
IN-
+
is the voltage at a negative input of
×
1024
⎞
⎟ −
⎠
INT
⎛
⎜
⎝
V
RANGE
V
IN
−
RANGE
IN+
IN-
×
RANGE
1024
is the
is the
is
⎞
⎟
⎠