ADM1033ARQZ-REEL7 ON Semiconductor, ADM1033ARQZ-REEL7 Datasheet - Page 27

• Manufacturer Part Number: ADM1033ARQZ-REEL7
• Description: IC THERM/FAN SPEED CTRLR 16-QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1033ARQZ-REEL7

• 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 ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 31. ADM1033 Registers
Table 32. Register 0x00, # Bytes/Block Read, POR = 0x20, Lock = Y, S/W Reset = Y
Table 33. Register 0x01, Configuration Register 1, Power−On Default 0x01, Lock = Y, S/W Reset = Y
Address
0x3C/BC
0x3D/BD
0x3E/BE
0x4A/CA
0x4B/CB
0x4E/CE
0x4F/CF
<7:0>
0x3F/BF
0x40/C0
0x41/C1
0x42/C2
0x43/C3
0x50/D0
0x51/D1
Bit
Bit
7
6
5
4
3
2
1
0
# Bytes Block Read
Table/SW Con
Lock Bit
SDA Timeout
SCL Timeout
ALERT Configuration
Enable THERM Timer
Averaging Off
Monitor/STBY
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
Name
Name
Fan Response
Device ID
Company ID
Revision Register
Local Temperature
Local Temperature
Remote 1 Temp
Remote 1 Temp
TACH1 Period
TACH1 Period
THERM % Ontime
Status 1
Status 2
Status 3
Description
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7
RES
F1S
LH
12
12
15
LT
7
7
7
4
4
7
7
Block reads are # bytes/block read long. The maximum is 32 bytes, the SMBus transaction
limit.
Set this bit to 1 to place the fan speed under the control of the Look−up table. When this
bit is 0, the ADM1033 is in software/manual control mode. Default = 0.
Set this bit to 1 to prevent the user from writing to the ADM1033 registers. 1 = ADM1033
registers locked. 0 = ADM1033 registers unlocked. Default = 0.
1 = SDA timeout enabled. 0 = SDA timeout disabled. Default = 0.
1 = SCL timeout enabled. 0 = SDL timeout disabled. Default = 0.
0 = SMBusALERT. Default = 0. 1 = ALERT_COMP mode.
1 = timer enabled, 0 = timer disabled. This bit enables THERM as an input. Default = 0.
This bit is used to disable averaging at the slower conversion rates (8 Hz and slower).
Averaging is automatically disabled at the higher (16, 32, and 64 Hz ) conversion rates.
Default = averaging on = 0.
Set bit to 1 to enable temperature monitoring. Set bit to 0 to disable it. Power−On Default = 1
Bit 6
RES
R1T
14
LL
FA
11
11
6
6
6
3
3
6
6
http://onsemi.com
Bit 5
RES
R1H
RES
RES
10
10
13
5
5
5
2
2
5
5
27
Bit 4
RES
RES
R1L
% T
12
4
4
4
1
9
1
9
4
4
Bit 3
RES
RES
R1D
TA
11
3
3
3
0
8
0
8
3
3
Description
Description
Bit 2
RES
RES
RES
RES
TS
F1
10
2
2
2
7
7
2
2
Bit 1
RES
RES
RES
RES
RES
F1
1
1
1
6
6
1
9
1
ALERT
Bit 0
RES
RES
RES
RES
F1
0
0
0
5
5
0
8
0
Default
0xFF
0xFF
0x01
0x34
0x41
0x02
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
Lock−
able?
Y
N
N
N
N
N
N
N
N
N
N
N
N
N