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ADM1033 の電気的特性と機能

ADM1033のメーカーはON Semiconductorです、この部品の機能は「Thermal Monitor and Fan Speed (RPM) Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 ADM1033
部品説明 Thermal Monitor and Fan Speed (RPM) Controller
メーカ ON Semiconductor
ロゴ ON Semiconductor ロゴ 




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ADM1033 Datasheet, ADM1033 PDF,ピン配置, 機能
ADM1033
Thermal Monitor and Fan
Speed (RPM) Controller
The ADM1033 is a one channel remote- and local-temperature
sensor and fan controller. The remote channel monitors the
temperature of the remote thermal diode, which may be discrete
2N3904/6s or may be located on a microprocessor die. The device also
monitors its own ambient temperature.
The ADM1033 can monitor and control the speed of cooling fan.
The user can program a target fan speed, or else use the look-up table
to input a temperature-to-fan speed profile. The look-up table can be
configured to run the fans at discrete speeds (discrete mode) or to ramp
the fan speed with temperature (linear mode).
The ADM1033 communicates over a 2-wire SMBus 2.0 interface.
An 8-level LOCATION input allows the user to choose between
SMBus 1.1 and SMBus 2.0. An ALERT output indicates error
conditions. The THERM I/O signals overtemperature as an output and
times THERM assertions as an input. Pin 8 can be configured as a
reference for the THERM (PROCHOT) input.
Features
1 Local and Remote Temperature Channels
1C Accuracy on Local and Remote Channels
Automatic Remote Temperature Channel, Up to 1 kW
Fast (Up to 64 Measurements per Second)
SMBus 2.0, 1.1, and 1.0 Compliant
SMBus Address Input/LOCATION Input to UDID
Programmable Over/Undertemperature Limits
Programmable Fault Queue
SMBusALERT Output
Fail-Safe Overtemperature Comparator Output
Fan Speed (RPM) Controller
Look-up Table for Temperature-to-Fan Speed Control
Linear and Discrete Options for Look-up Table
FAN_FAULT Output
THERM Input, Used to Time PROCHOT Assertions
REF Input, Used as Reference for THERM (PROCHOT)
3.0 V to 5.5 V Supply
Small 16-lead QSOP Package
This is a Pb-Free Device*
Applications
Desktop and Notebook PCs
Embedded Systems
Telecommunications Equipment
LCD Projectors
* For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2012
April, 2012 Rev. 3
1
http://onsemi.com
QSOP16
CASE 492
PIN ASSIGNMENT
DRIVE1 1
TACH1 2
ALERT Comp 3
NC 4
GND 5
VCC 6
THERM 7
FAN_FAULT/REF 8
ADM1033
16 SCL
15 SDA
14 ALERT
13 LOCATION
12 NC
11 NC
10 D1+
9 D1
(Top View)
MARKING DIAGRAM
1033A
RQZ
#YYWW
1033ARQZ = Specific Device Code
# = Pb-Free Package
YY = Date Code
WW = Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 34 of this data sheet.
Publication Order Number:
ADM1033/D

1 Page





ADM1033 pdf, ピン配列
ADM1033
Table 2. THERMAL CHARACTERISTICS
Package Type
16-lead QSOP Package
qJA qJC Unit
150 39 C/W
Table 3. PIN ASSIGNMENT
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mnemonic
DRIVE1
TACH1
ALERT Comp
NC
GND
VCC
THERM
FAN_FAULT/R
EF
D1
D1+
NC
NC
LOCATION
ALERT
SDA
SCL
Description
DRIVE1 Pin Drives Fan 1. Open-drain output. Requires a pullup resistor.
Fan 1 Fan Speed Measurement Input. Connects to the fan’s TACH output to measure the fan speed.
Open-Drain Active Low Output. Assets low whenever a measurement goes outside its programmed
limits if not masked. Automatically goes high again when the measured parameter falls back within its
limits.
No Connect.
Ground for Analog and Digital Circuitry.
Power. Can be powered by 3.3 V standby power if monitoring in low power states is required.
Can be configured as an overtemperature interrupt output, or as an input (to monitor PROCHOT output
of an INTEL CPU). A timer measures assertion times on the THERM pin (either input or output).
FAN_FAULT: Open-Drain Output. Asserted low when one or both fans stall. Requires a pullup
resistor to VCC. REF: Analog Input Reference for the THERM Input.
Cathode Connection for the First Thermal Diode or Diode-Connected Transistor.
Anode Connection for the First Thermal Diode or Diode-Connected Transistor.
No Connect.
No Connect.
8-level Analog Input. Used to determine the correct SMBus version and the SMBus address (in fixed
and discoverable mode) and to set the LLL bits in the UDID (in ARP-capable mode).
Open-Drain Output. SMBusALERT pin. Alerts the system in the case of out-of-limit events, such as
over temperature. Can be configured as sticky SMBus mode or comparator mode.
Serial Bus Bidirectional Data. Connects to the SMBus master’s data line. Requires pullup resistor if
not provided elsewhere in the system.
Serial SMBus Clock Input. Connects to the SMBus master’s clock line. Requires pullup resistor if not
already provided in the system.
http://onsemi.com
3


3Pages


ADM1033 電子部品, 半導体
ADM1033
TYPICAL PERFORMANCE CHARACTERISTICS
40
20
D+ TO GND
0
D+ TO VCC
20
40
60
80
100
0 10 20 30 40 50 60 70 80 90 100
LEAKAGE RESISTANCE (MW)
Figure 3. Temperature Error vs. PCB Track
Resistance DXP to GND and VCC
100
90 DEV 33
80
70
60
50
40
DEV 31
30
20
10 DEV 32
0
10
1 23 456
SERIES RESISTANCE IN D+/D(kW)
Figure 5. Remote Temperature Error vs.
Series Resistance on D+ and D
0
10
20 DEV 33 (C)
30
40 DEV 31 (C)
50 DEV 32 (C)
60
70
80
0
2 4 6 8 10
CAPACITANCE (nF)
Figure 4. Remote Temperature Error vs.
D+, DCapacitance
12
20
EXT 100 mVpp
15 EXT 250 mVpp
10
5
0
5
10
0
1M 2M 3M 4M 5M
FREQUENCY (Hz)
Figure 6. Remote Temperature Error vs.
Power Supply Noise Frequency
6M
50
45
40
35
30
25 100 mV
20
15 20 mV
10 50 mV
5
0
0 1M 2M 3M 4M 5M 6M
NOISE FREQUENCY (Hz)
Figure 7. Remote Temperature Error vs.
Common-Mode Noise Frequency Coupled
on D+ and D
4.0
10 mV
3.5 20 mV
3.0
2.5
2.0
1.5
1.0
0.5
0
0 1M 2M 3M 4M 5M 6M
NOISE FREQUENCY (Hz)
Figure 8. Remote Temperature Error vs.
Differential Mode Noise Frequency Coupled
on D+ and D
http://onsemi.com
6

6 Page



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