參數(shù)資料
型號(hào): ADM1034ARQZ-REEL
廠商: ON Semiconductor
文件頁(yè)數(shù): 5/38頁(yè)
文件大?。?/td> 427K
描述: IC THERM/FAN SPEED CTRLR 16-QSOP
產(chǎn)品變化通告: MFG CHG Notification ADI to ON Semi
標(biāo)準(zhǔn)包裝: 2,500
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: -40°C ~ 125°C,外部傳感器
精確度: ±1°C
拓?fù)洌?/td> ADC,比較器,多路復(fù)用器,寄存器庫(kù)
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: -40°C ~ 125°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)
ADM1034
http://onsemi.com
5
Table 4. ELECTRICAL CHARACTERISTICS (T
A
 = T
MIN
 to T
MAX
, V
CC
 = V
MIN
 to V
MAX
, unless otherwise noted). (Note 1)
Parameter
Unit
Max
Typ
Min
Test Conditions/Comments
Tachometer Accuracy
Fan Speed Measurement Accuracy


?.0
%
SERIAL
 BUS
 TIMING
 (Note 4)
Clock Frequency, f
SCLK
See Figure 2 for All Parameters


400
kHz
Glitch Immunity, t
SW

50

ns
Bus Free Time, t
BUF
1.3


ms
Start Setup Time, t
SU:STA
0.6


ms
Start Hold Time, t
HD:STA
0.6


ms
Stop Condition Setup Time t
SU:STO
0.6


ms
SCL Low Time, t
LOW
1.3


ms
SCL High Time, t
HIGH
0.6


ms
SCL, SDA Rise Time, t
r


1000
ns
SCL, SDA Fall Time, t
f


300
ns
Data Setup Time, t
SU:DAT
100


ns
Detect Clock Low Timeout, t
TIMEOUT
(Note 5)
25

35
ms
1.  Typicals are at T
A
= 25癈 and represent most likely parametric norm. Standby current typ. is measured with V
CC
= 3.3 V. Timing
specifications are tested at logic levels of V
IL
= 0.8 V for a falling edge and V
IH
= 2.1 V for a rising edge.
2.  Operation at 5.5 V is guaranteed by design, not production tested.
3.  Recommend use of 100 kW pullup resistors for all open-drain outputs from the ADM1034.
4.  Guaranteed by design, not production tested.
5.  SMBus timeout disabled by default. See the SMBus section for more information.
Figure 2. Serial Bus Timing Diagram
P
S
t
SU; DAT
t
HIGH
t
F
t
HD; DAT
t
R
t
LOW
t
SU; STO
P
S
SCL
SDA
t
BUF
t
HD; STA
t
HD; STA
t
SU; STA
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