DS1780E+T&R Maxim Integrated Products, DS1780E+T&R Datasheet - Page 24
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DS1780E+T&R
Manufacturer Part Number
DS1780E+T&R
Description
IC CPU PERIPHERAL MON 24-TSSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1780E.pdf
(28 pages)
Specifications of DS1780E+T&R
Function
Thermal Monitor, CPU Peripherals
Topology
ADC (Sigma Delta), Comparator, Fan Speed Control, Register Bank
Sensor Type
Internal
Sensing Temperature
-40°C ~ 125°C
Output Type
I²C™/SMBus™
Output Alarm
No
Output Fan
Yes
Voltage - Supply
2.8 V ~ 5.75 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DC ELECTRICAL CHARACTERISTICS:
Fan RPM-to-Digital Converter
DC ELECTRICAL CHARACTERISTICS:
Analog Output V
DC ELECTRICAL CHARACTERISTICS:
Digital Outputs: A0NT
Accuracy
Full scale count
FAN1 & FAN2
Normal Input RPM
Internal Oscillator
Frequency
DAC Resolution
Voltage Range
Error
Output Current
Load Capacitance
Logical “1”
Output Voltage
Logical “0”
Output Voltage
PARAMETER
PARAMETER
PARAMETER
OUT
SYMBOL
SYMBOL
SYMBOL
DAC
V
V
C
OUT
OUT
I
LOAD
OUT
OUT
ERR
(1)
(0)
Divisor=1; Fan
Divisor=2; Fan
Divisor=4; Fan
Divisor=8; Fan
I
I
I
I
CONDITION
CONDITION
CONDITION
OUT
OUT
OUT
OUT
V
V
V
V
Count=153
Count=153
Count=153
Count=153
+25°C£TA
-40°C£TA
£+125°C
0°C£TA
DD
DD
DD
DD
£+75°C
£100°C
=±5 mA at
=±3 mA at
=±5 mA at
=±3 mA at
=4.25V
=2.85V
=5.75V
=3.45V
24 of 28
(-40°C to +125°C, 2.8V £ V
(-40°C to +125°C, 2.8V £ V
(-40°C to +125°C, 2.8V £ V
21.15
MIN
MIN
MIN
2.4
0
TYP
8800
4400
2200
1100
TYP
TYP
22.5
MAX
MAX
MAX
23.85
1.25
±12
255
100
2.0
0.4
±6
±5
8
decimal
UNITS
UNITS
UNITS
RPM
% of
FSR
kHz
mA
bits
pF
%
V
V
V
DD
DD
DD
£ 5.75V)
£ 5.75V)
£ 5.75V)
NOTES
NOTES
NOTES
8