參數(shù)資料
型號(hào): ADM1030ARQZ-RL7
廠商: ON Semiconductor
文件頁數(shù): 3/30頁
文件大小: 327K
描述: IC SNSR TEMP/FAN PWM CTRL 16QSOP
產(chǎn)品變化通告: MFG CHG Notification ADI to ON Semi
Product Obsolescence 11/Feb/2009
標(biāo)準(zhǔn)包裝: 1,000
功能: 風(fēng)扇控制,溫度監(jiān)控器
傳感器類型: 內(nèi)部和外部
感應(yīng)溫度: 0°C ~ 100°C,外部傳感器
精確度: ±1°C,±1°C(最小值)
拓?fù)洌?/td> ADC,比較器,多路復(fù)用器,寄存器庫
輸出類型: SMBus?
輸出警報(bào):
輸出風(fēng)扇:
電源電壓: 3 V ~ 5.5 V
工作溫度: 0°C ~ 100°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-QSOP
包裝: 帶卷 (TR)
ADM1030
http://onsemi.com
3
Table 3. PIN FUNCTION DESCRIPTIONS
Pin No.
Mnemonic
Description
1
PWM_OUT
Digital Output (Open-Drain). Pulsewidth modulated output to control fan speed. Requires pull-up
resistor (10 kW typical).
2
TACH/AIN
Digital/Analog Input. Fan tachometer input to measure fan speed. May be reprogrammed as an
analog input to measure speed of a 2-wire fan via a sense resistor (2 W typical)
3, 4, 11, 12
NC
Not Connected.
5
GND
System Ground.
6
V
CC
Power. Can be powered by 3.3 V Standby power if monitoring in low power states is required.
7
THERM
Digital I/O (Open-Drain). An active low thermal overload output that indicates a violation of a
temperature set point (overtemperature). Also acts as an input to provide external fan control. When
this pin is pulled low by an external signal, a status bit is set, and the fan speed is set to full-on.
Requires pull-up resistor (10 kW).
8
FAN_FAULT
Digital Output (Open-Drain). Can be used to signal a fan failure. Requires pull-up resistor (typically
10 kW).
9
D
Analog Input. Connected to cathode of an external temperature-sensing diode. The
temperature-sensing element is either a Pentium
?/DIV>
III substrate transistor or a general-purpose
2N3904.
10
D+
Analog Input. Connected to anode of the external temperature-sensing diode.
13
ADD
Three-state Logic Input. Sets two lower bits of device SMBus address.
14
INT
Digital Output (Open-Drain). Can be programmed as an interrupt output for temperature/fan speed
interrupts. Requires pull-up resistor (10 kW typical).
15
SDA
Digital I/O. Serial Bus Bidirectional Data. Open-drain output. Requires pull-up resistor (2.2 kW typical).
16
SCL
Digital Input. Serial Bus Clock. Requires pull-up resistor (2.2 kW typical).
Table 4. ELECTRICAL CHARACTERISTICS (T
A
 = T
MIN
 to T
MAX
, V
CC
 = V
MIN
 to V
MAX
, unless otherwise noted. (Note 1))
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
POWER SUPPLY
Supply Voltage, V
CC
3.0
3.3
5.5
V
Supply Current, I
CC
Interface Inactive, ADC Active
Standby Mode


1.4
32
3.0
50
mA
mA
TEMPERATURE-TO-DIGITAL CONVERTER
Internal Sensor Accuracy

?.0
?.0
Resolution

0.25

External Diode Sensor Accuracy
60癈 < T
D
 < 100癈


?.0
Resolution

0.125

Remote Sensor Source Current
High Level
Low Level


180
11


mA
OPEN-DRAIN DIGITAL OUTPUTS (THERM
, INT
, FAN_FAULT
, PWM_OUT)
Output Low Voltage, V
OL
I
OUT
 = 6.0 mA, V
CC
 = 3 V


0.4
V
High Level Output Current, I
OH
V
OUT
 = V
CC
, V
CC
 = 3 V

0.1
1.0
mA
DIGITAL INPUT LEAKAGE CURRENT
Input High Current, I
IH
V
IN
 = V
CC
1.0


mA
Input Low Current, I
IL
V
IN
 = 0


1.0
mA
Input Capacitance, C
IN

5

pF
DIGITAL INPUT LOGIC LEVELS (ADD, THERM
, TACH) (Note 2)
Input High Voltage, V
IH
2.1


V
Input Low Voltage, V
IL


0.8
V
OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)
Output Low Voltage, V
OL
I
OUT
 = 6.0 mA, V
CC
 = 3 V


0.4
V
High Level Output Leakage Current, I
OH
V
OUT
 = V
CC

0.1
1.0
mA
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