ADM9240 View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
ADM9240 Datasheet PDF : 22 Pages
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ADM9240
Parameter
Min Typ Max Units Test Conditions/Comments
OPEN-DRAIN SERIAL DATA BUS
OUTPUT (SDA)
Output Low Voltage, VOL
High Level Output Current, IOH
SERIAL BUS DIGITAL INPUTS
(SCL, SDA)
HIInnyppsuutett rHLeosiigwshVVoollttaaggee,,VVILIH
0.4
V
0.4
V
0.1 100
µA
0.7 × VCC
500
V
0.3 × VCC
V
mV
VVVIIOOCCOUUCCUTTT=====42––..V3328C..5500CVVmm––AA53..,7455
V
V
DIGITAL INPUT LOGIC LEVELS
(A0, A1, CI, RESET, VID0 – VID4,
FAN1, FAN2)
NTIIIInnnnSEppppCSuuuuTLtttt ,_HLHLISooNiiDggwwhhAVVVVFoooollallttttlaalaaggggTeeee,,i,,mVVVVIIeLLII,HH
Input
Input
High
High
Voltage,
Voltage,
VVIIHH
DIIIIIGnnnnppppITuuuuCttttAloHLHCLcoaiikggIwpNhhFaCcPrCCeiUutquuarurrTnrrreeceennCenn,tcttU,y,,CI,RAIIIILNHR0,EAN1T, IIH
SERIAL BUS TIMING7
SSSDSSCDGBStCCtCCullaaaaoisttLLLLtrrcaacttF,,khHLSHSHIIrSSFnneeoeIiDDoomegttpprwluluehAAduudTmqppTttTuTTiFRumTTLLieiminiaimoonmmiiselmimeelwwct,eeey,yTeet,T,,,B,tVV,,tiLttUtimfHttHHoomSOSSFSWICllDDWUGeUtteL;;aa,;H;SD,SDKggTtTAtAFeeARATT,,
2.4
0.8
2.0
0.4
2.4
2.0
–1
–200 75
1
20
400
50
1.3
600
600
1.3
0.6
300
300
100
900
V
V
V
V
VVVVCCCCCCCC
=
=
=
=
4.25
4.25
2.85
2.85
V–5.75
V–5.75
V–3.45
V–3.45
V
V
V
V
V
V
VVCCCC
=
=
4.25
2.85
V–5.75
V–3.45
V
V
µA
µA
µA
pF
VVVIIINNN
=
=
=
V0VCCCC
(Note
6)
kHz See Figure 1
ns See Figure 1
µs
See Figure 1
ns See Figure 1
ns See Figure 1
µs
See Figure 1
µs
See Figure 1
ns See Figure 1
µs
See Figure 1
ns See Figure 1
ns See Figure 1
NOTES
1All voltages are measured with respect to GND, unless otherwise noted.
23TTyUpEica(TlsoaItrnaelpaUutntTaAdLj=uosw+te2dV5°EoCrlrtaoanrg)deinr,ecpluredseesnOt mffsoestt,
likely
Gain
parametric norm. Shutdown current typ is measured with
and Linearity errors of the ADC, multiplexer and on-chip
VCC = 3.3 V.
input attenuators,
including
an
external
series
input
protection resistor value between zero and 1 kΩ.
4Total monitoring cycle time is the time taken to measure all six analog inputs plus the temperature sensor.
5The total fan count is based on 2 pulses per revolution of the fan tachometer output.
6A0 and A1 have internal 75 kΩ pull-down.
7Timing specifications are tested at logic levels of VIL = 0.3 × VCC for a falling edge and VIH = 0.7 × VCC for a rising edge.
Specifications subject to change without notice.
REV. 0
Rev. 2 | Page 3 of 22 | www.onsemi.com
–3–
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