|
|
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。 |
部品番号 | ADM1033 |
| |
部品説明 | Thermal Monitor and Fan Speed (RPM) Controller | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとADM1033ダウンロード(pdfファイル)リンクがあります。 Total 30 pages
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
QSOP−16
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
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
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+, D− Capacitance
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 | |||
ページ | 合計 : 30 ページ | ||
|
PDF ダウンロード | [ ADM1033 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
ADM1030 | Intelligent Temperature Monitor and PWM Fan Controller | Analog Devices |
ADM1030 | Intelligent Temperature Monitor and PWM Fan Controller | ON Semiconductor |
ADM1031 | Intelligent Temperature Monitor and Dual PWM Fan Controller | Analog Devices |
ADM1031 | Intelligent Temperature Monitor and Dual PWM Fan Controller | ON Semiconductor |