ADM1034ARQZ-R7 ON Semiconductor, ADM1034ARQZ-R7 Datasheet - Page 5

• Manufacturer Part Number: ADM1034ARQZ-R7
• Description: IC THERM/FAN SPEED CTLR 16-QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1034ARQZ-R7

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. Typicals are at T
2. Operation at 5.5 V is guaranteed by design, not production tested.
3. Recommend use of 100 kW pullup resistors for all open−drain outputs from the ADM1034.
4. Guaranteed by design, not production tested.
5. SMBus timeout disabled by default. See the SMBus section for more information.
ELECTRICAL CHARACTERISTICS
AGTL + INPUT (THERM)
Tachometer Accuracy
SERIAL BUS TIMING (Note 4)
Input High Level
Input Low Level
Fan Speed Measurement Accuracy
Clock Frequency, f
Glitch Immunity, t
Bus Free Time, t
Start Setup Time, t
Start Hold Time, t
Stop Condition Setup Time t
SCL Low Time, t
SCL High Time, t
SCL, SDA Rise Time, t
SCL, SDA Fall Time, t
Data Setup Time, t
Detect Clock Low Timeout, t
are tested at logic levels of V
SDA
SCL
Parameter
P
t
BUF
BUF
LOW
A
HIGH
SW
HD:STA
SCLK
SU:STA
SU:DAT
= 25°C and represent most likely parametric norm. Standby current typ. is measured with V
S
f
r
t
HD:STA
SU:STO
TIMEOUT
t
IL
LOW
= 0.8 V for a falling edge and V
t
R
t
HD:DAT
(T
A
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Figure 2
See Note 5
= T
Figure 2. Serial Bus Timing Diagram
MIN
Test Conditions / Comments
to T
t
HIGH
MAX
http://onsemi.com
t
F
t
SU:DAT
, V
CC
IH
= 2.1 V for a rising edge.
= V
5
MIN
to V
MAX
S
, unless otherwise noted. (Note 1)
t
SU:STA
t
HD:STA
Min
100
1.3
0.6
0.6
0.6
1.3
0.6
25
0.75 x
REF
Typ
50
CC
= 3.3 V. Timing specifications
t
SU:STO
1000
Max
±4.0
400
300
0.4
35
P
Unit
kHz
ms
ns
ms
ms
ms
ms
ms
ms
ns
ns
ns
%
V
V