Instruction Manual

DS1780
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DC ELECTRICAL CHARACTERISTICS:
Open-drain Digital Outputs:
RST, CHS, INT
(-40°C to +125°C, 2.8V ≤ V
DD
≤ 5.75V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
I
OUT
=±5 mA at
V
DD
=5.75V
Logical 0
Output Voltage
V
OUT
(0)
I
OUT
=±3 mA at
V
DD
=3.45V
0.4 V
High Level
Output Current
I
OH
V
OUT
=V
DD
0.1 100 µA
Active Pulse Width
RST and CHS
20 45 ms
DC ELECTRICAL CHARACTERISTICS:
Open-drain 2-Wire Bus Output: SDA (-40°C to +125°C, 2.8V ≤ V
DD
≤ 5.75V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
I
OUT
=±5 mA at
V
DD
=5.75V
Logical 0
Output Voltage
V
OUT
(0)
I
OUT
=±3 mA at
V
DD
=3.45V
0.4 V
High Level
Output Current
I
OH
V
OUT
=V
DD
0.1 100 µA
DC ELECTRICAL CHARACTERISTICS:
2-Wire Bus Digital Inputs: SDA, SCL (-40°C to +125°C, 2.8V ≤ V
DD
≤ 5.75V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Logical 1
Input Voltage
V
IN
(1)
0.7V
DD
V
Logical 0
Input Voltage
V
IN
(0) 0.3V
DD
V
DC ELECTRICAL CHARACTERISTICS:
Digital Inputs: A0/NT
OUT
, A1, CHS, VID0-4, FAN1, FAN2
(-40°C to +125°C, 2.8V ≤ V
DD
≤ 5.75V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Logical 1
Input Voltage
V
IN
(1) V
DD
=5.0V 2.4 V
Logical 0
Input Voltage
V
IN
(0) V
DD
=5.0V 0.8 V
Logical 1
Input Voltage
V
IN
(1) V
DD
=3.3V
2.0
V
Logical 0
Input Voltage
V
IN
(0) V
DD
=3.3V 0.4 V