SD16729 Silan Microelectronics Joint-stock, SD16729 Datasheet - Page 5

• Manufacturer Part Number: SD16729
• Description: 16-BIT CONSTANT CURRENT LED DRIVER
• Manufacturer: Silan Microelectronics Joint-stock

PIN CONFIGURATION
PIN DESCRIPTION
FUNCTION DESCROPTION
In the LED display applications, SD16729 can maintain almost no change in different channels or between the
different chips. In the different channels, the current changes less than ±2%, while between the different chips,
the current changes less than ± 3%.
There is only one pin connected to ground which is shared as analog ground, digital ground and power ground. It
is recommended to route with min. inductance against switching noise and output current noise-induced IC faults.
In order to obtain a good current output, the chip needs an appropriate output voltage. According to the
electrical characteristics table, users can get minimum output voltage and other related information. Even in
the same output current conditions, the minimum output voltage of every part is different. .
In order to avoid noise interference, the resistance should be placed close to the pin R-EXT.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
Pin No.
5 ~ 20
21
22
23
24
1
2
3
4
OUT0 ~ OUT15
SERIAL-OUT
SERIAL-IN
Pin Name
ENABLE
CLOCK
LATCH
R-EXT
GND
VDD
SERIAL-IN
CLOCK
LATCH
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
GND
10
11
12
1
2
3
4
5
6
7
8
9
I/O
I/O
I/O
O
--
--
I
I
I
I
Ground
Shift register input pin
Clock input pin for shift register
Data strobe pin for the latch
Output pins
Output enable pin (active low)
Shift register output pin
External resistor connecting pin
Power supply
24
23
22
21
20
19
18
17
16
15
14
13
V
R-EXT
SERIAL-OUT
ENABLE
OUT15
OUT14
OUT13
OUT12
OUT11
OUT10
OUT9
OUT8
DD
Pin Function
REV:1.1
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SD16729
Page 5 of 14
2009.03.10