About Corresponded UART Interface
S6AL211A94, ASSP 4ch LED Driver IC for Intelligent Lighting Hardware Manual, Doc. No. 002-08545 Rev. *B
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2.1 Terminal connection
Table 1. Terminal connection
Pin No.
Pin Name
I/O
Terminal Connection Place
1
DGND
-
Ground
2
BIAS2
O
Connect By-pass capacitor. ( Do not connect external load )
3
BIAS
O
Connect By-pass capacitor. ( Do not connect external load )
4
VIN
-
DC 24 V Power supply
5
DRV_1
O
Connect external switching FET1 gate of current control.
6
DRV_2
O
Connect external switching FET2 gate of current control.
7
VIN
-
DC 24 V Power supply
8
DRV_3
O
Connect external switching FET3 gate of current control.
9
DRV_4
O
Connect external switching FET4 gate of current control.
10
DIN1
I
Unused Pin
Input to VO pin output level.
11
DIN2
I
Unused Pin
Connect to GND level.
12
SCL
I/O
Unused Pin
Input to VO pin output level.
13
SDA
I/O
Unused Pin
Input to VO pin output level.
14
SH_1
O
Connect external switching FET1 gate of PWM dimming control.
15
SH_2
O
Connect external switching FET2 gate of PWM dimming control.
16
AGND
-
Ground
17
SH_3
O
Connect external switching FET3 gate of PWM dimming control.
18
SH_4
O
Connect external switching FET4 gate of PWM dimming control.
19
TEMP1
I
Connect Temperature sensor 1.
20
TEMP2
I
Connect Temperature sensor 2.
21
TEMP3
I
Connect Temperature sensor 3.
22
TEMP4
I
Connect Temperature sensor 4.
23
AGND
-
Ground
24
CS_1P
I
Connect LED current sense 1 of High side.
25
CS_1N
I
Connect LED current sense 1 of Low side.
26
CS_2P
I
Connect LED current sense 2 of High side.
27
CS_2N
I
Connect LED current sense 2 of Low side.
28
CS_3P
I
Connect LED current sense 3 of High side.
29
CS_3N
I
Connect LED current sense 3 of Low side.
30
CS_4P
I
Connect LED current sense 4 of High side.
31
CS_4N
I
Connect LED current sense 4 of Low side.
32
PCNT
O
IC status output Pin
33
TEST
I
Exclusive use of the Test
Connect to BIAS3Pin.
34
IF1
I
UART Communication interface data input Pin
35
IF2
O
UART Communication interface data output Pin
36
AGND
-
Ground
37
SENSE1
I
Unused Pin
Connect to GND level.
38
SENSE2/ADD2
I
Unused Pin
Connect to GND level.
