參數(shù)資料
型號： LDS9003-002-T2
廠商： IXYS
文件頁數(shù)： 11/30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)： 無
輸出風(fēng)扇： 無
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.
11
Doc. No. 9003/9001_DS, Rev. N1.0
Characteristics subject to change without notice
PIN DESCRIPTION
Pin #
Name
LDS9001
Name
LDS9003
Function
1    SCLK
SCLK   I
2
C Serial clock input
2
SDAT
SDAT   I
2
C Serial data input/output
3
SADD
SADD   I
2
C Serial interface Address Programming
4
GND
GND    Ground Reference
5
EN
NC
Not connect (no internal connect to the device)
6    TSENSE
EN
9001: LED Led-Sense for LED anaode
9003: Device enable (active high)
7
IPWM
NC
9001: PWM current source output 1mA
9003: NC
8
VIN
IPWM3
9001: Power Source Input; connect to 2.5V-5.5Vdc
9003: PWM3 current source output 1mA
9
TSENSE3 LED-Sense input for LED3 anode
10
IPWM2   PWM3 current source output 1mA
11
TSENSE2 LED-Sense input for LED2 anode
12
IPWM1   PWM1 current source output 1mA
13
TSENSE1 LED-Sense input for LED1 anode
14
V
IN
Power Source Input; connect to 2.5-5.5Vdc
15
TST
Not connected by user; leave floating Factory Test pin
16
NC
Not connect (no internal connect to the device)
PAD
PAD    Connect to GND on the PCB
Top View :
DFN 8-Lead 3 x 2 mm
2
Top View :
TQFN 16 -Lead 3 x 3 mm
2
PIN FUNCTION
V
IN
is the supply pin. The operating input voltage
range is from 2.5 V to 5.5 V.
EN  is  the  enable  input  for  the  entire  device.
Guaranteed levels of logic high and logic low are set
at 1.3 V and 0.4V respectively. When EN is initially
taken high, the device becomes enabled and  may
communicate through I
2
C interface
SDAT is the I
2
C serial data line. This is a bidirectional
line allowing data to be written into and read from
internal registers.
SCLK is the I
2
C serial clock input.
SADD is I
2
C Serial interface Addresses tie to either
GND  or  VIN  pin  to  allow  choice  of  two  slave
addresses. Allows two 9003 or 9001 on same control
bus  for  optional  increased  LED-SenseTM  point
monitoring control
GND is the ground reference for internal circuitry.
The pin must be connected to the ground plane on
the PCB.
TSENSE1,  TSENSE2,  TSENSE3  (LDS9003)  and
TSENSE    (LDS9001)    are    the    LED-Sense
TM
temperature  sensing  pins  for  the  LEDs.  These
connect  to  the  LED  anodes.    These  pins  force
currents of 1mA and 200ua and measure voltages for
calculation of LED junction temperature. These pins
enter high-impedance zero current state whenever
the device is in shutdown mode.
IPWM1,  IPWM2,  IMPWM3  (LDS9003)  and  IPWM
(LDS9001) are the PWM 1mA peak to GND current
sources outputs for controlling PWM of external HB
LED driver. User adds resistor to GND to generate
desired PWM voltage range levels. These pins enter
high-impedance  zero  current  state  whenever  the
device is in shutdown mode.
TST is a test pin used by factory only. Leave it
floating (no external connection)
PAD is the exposed pad underneath the package.
For best thermal performance, the tab should be
soldered to the PCB and connected to the ground
plane
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