参数资料
型号: LX1801CLQ-TR
厂商: MICROSEMI CORP
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQCC16
封装: 3 X 3 MM, ROHS COMPLIANT, PLASTIC, MLPQ-16
文件页数: 11/12页
文件大小: 255K
代理商: LX1801CLQ-TR
LX1801
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
Copyright
2005
Rev. 1.0, 5/4/2006
WWW
.Microse
m
i
.CO
M
SMBus to Analog & Digital System Interface
TM
FUNCTIONAL BLOCK DIAGRAM
LX1801 FUNCTIONAL BLOCK DIAGRAM
REVISION X2 k
3 November 05 Microsemi Integrated Products
PWM_MD
ADC
ALS 0X04
VSS2
OVR_CUR
FLT/
STAT
LATCH
0x02
1P2V
LMP_ON
VSS1
LX1972
ALS-IN
VDD
C1
ALS
R1
20.0K
5V
DAC
ALS
LOW
0X05
ALS
HIGH
0X06
V_REF
-
+
V_REF
+
-
SMBus CONTROL
SDA
ADR0
ID/
REV
0X03
ALS_CTL
PWM_MD
PWM_SEL
LAMP_CTL
DVC
CTL
0X01
EN_OUT
FLT-DLY
PWM_IN
PWM_SEL
0
1
2
3
VREF_IN
DAC
A
MUX
POR
BRITE
0X00
LAMP_CTRLPOSEDGE
ALS DLY (N/U)
5VDC
ALS_CTL
2P5V
V_REF
PWM_SEL
1
0
RD_ALS
ALS_CTL
OPN LMP
RST_
LAMP_
CTL
SMDATA
RST
O/S
+
-
R4
10K
A
MUX
1
0
A
MUX
1
0
V_REF
5VDC
+
-
100K
SCL
V_BOT
VDD_A
R3
30K
R2
40K
+
-
5VDC
BRITE_OUT
C2
100nF
5VDC
BRITE_OUT
+
-
100K
SMBus
V_REF
C3
10 nF
-
+
200MV
LAMP_STAT
OV_CURR
FAULT
THRM_SHDN
R5
1M
-
+
R
S
Q
5V
LMP_C
100K
Figure 1 – Block Diagram
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
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