參數(shù)資料
型號: LDS9003-002-T2
廠商: IXYS
文件頁數(shù): 19/30頁
文件大?。?/td> 425K
描述: IC TEMP/PWM CONTROLLER 16WQFN
標(biāo)準(zhǔn)包裝: 1
功能: 溫度監(jiān)控系統(tǒng)(傳感器)
傳感器類型: 外部
拓?fù)洌?/td> ADC,振蕩器,寄存器庫
輸出類型: I²C?
輸出警報(bào):
輸出風(fēng)扇:
電源電壓: 2.5 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-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 16-TQFN
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: LDS9003-002-T2-6
LDS9003 / 9001
?009 IXYS Corp.
19
Doc. No. 9003/9001_DS, Rev. N1.0
Characteristics subject to change without notice
In Standby Mode, the I
2
C interface remains active
and all registers retain their programmed information.
Further in Standby Mode the IPWMx current drivers
and internal clock are powered off; however, internal
regulators  and  reference  circuits  remain  active  to
insure power to the digital sections to hold register
values and maintain I
2
C interface communications.
This results in standby current ~ 100 礎(chǔ) typical. For
this mode, the  EN pin should be logic HIGH with
signal level from 1.3 to V
IN
voltage.
SHUTDOWN MODE
To set LDS9003/9001 into the shutdown mode, the
EN pin should be logic low more than 10 ms. The
LDS9003/9001 shutdown current is less than 1 礎(chǔ).
The LDS9003/9001 wakes up from shutdown mode
with   factory-preset   default   data.   To   preserve
customer-programmed data, use the standby mode.
PROGRAMMING MODES
The LDS9003/9001 is factory pre-programmed with
certain default POR levels to facilitate both factory
testing and user operation. However, specific LEDs
and  other  user  system  conditions  require  user
programming of the temperature compensation LUTs
and other LED specific parameters.
The  loading  of  these  registers  can  easily  be
conducted with a low cost boot type microcontroller
having non-volatile memory to hold system and user
parameters. 1K bits of non-volatile data storage is
sufficient for the LDS9003. 256 bits is required for the
LDS9001.
After  initialization  and  user programming  the  user
should   conduct   an   I
2
C   calibration   sequence
command by writing Bit 4 = 1 in the Control register
1Fh. This conducts a real time calibration of the initial
starting  temperature  and  actual  LED  parameters.
Upon completion, Bit 4 will be internally reset to 0,
and the LDS9003/9001 is ready for use.
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