参数资料
型号: ADM1033ARQ
厂商: ON Semiconductor
文件页数: 3/35页
文件大小: 424K
描述: IC THERM/FAN SPEED CTRLR 16-QSOP
产品变化通告: MFG CHG Notification ADI to ON Semi
Product Discontinuation Notice 25/Aug/2008
标准包装: 98
功能: 风扇控制,温度监控器
传感器类型: 内部和外部
感应温度: -40°C ~ 125°C,外部传感器
精确度: ±1°C
拓扑: ADC,比较器,多路复用器,寄存器库
输出类型: SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-QSOP
包装: 管件
ADM1033
http://onsemi.com
3
Table 2. THERMAL CHARACTERISTICS
Package Type
q
JA
q
JC
Unit
16-lead QSOP Package
150
39
癈/W
Table 3. PIN ASSIGNMENT
Pin No.
Mnemonic
Description
1
DRIVE1
DRIVE1 Pin Drives Fan 1. Open-drain output. Requires a pullup resistor.
2
TACH1
Fan 1 Fan Speed Measurement Input. Connects to the fans TACH output to measure the fan speed.
3
ALERT
 Comp
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.
4
NC
No Connect.
5
GND
Ground for Analog and Digital Circuitry.
6
VCC
Power. Can be powered by 3.3 V standby power if monitoring in low power states is required.
7
THERM
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).
8
FAN_FAULT
/R
EF
FAN_FAULT
: Open-Drain Output. Asserted low when one or both fans stall. Requires a pullup
resistor to V
CC
. REF: Analog Input Reference for the THERM
 Input.
9
D1
Cathode Connection for the First Thermal Diode or Diode-Connected Transistor.
10
D1+
Anode Connection for the First Thermal Diode or Diode-Connected Transistor.
11
NC
No Connect.
12
NC
No Connect.
13
LOCATION
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).
14
ALERT
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.
15
SDA
Serial Bus Bidirectional Data. Connects to the SMBus masters data line. Requires pullup resistor if
not provided elsewhere in the system.
16
SCL
Serial SMBus Clock Input. Connects to the SMBus masters clock line. Requires pullup resistor if not
already provided in the system.
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