STP1612PW05 STMicroelectronics, STP1612PW05 Datasheet - Page 30

• Manufacturer Part Number: STP1612PW05
• Description: 16-channel LED driver with 16-bit PWM, 8-bit gain and full LED error detection
• Manufacturer: STMicroelectronics

Specifications of STP1612PW05

• Supply Voltage: 3.3 V or 5 V
• Max Clock Frequency: 30 MHz

Application information
17.3
30/41
Figure 20. Example of brightness setting
Multi device application
In a typical application several devices are used to drive the LEDs.
In this case more STP1612PW05 can be connected together in a daisy chain configuration
as shown in
Figure 21. STP1612PW05 in daisy chain configuration
GS
GS
µC
µC
value, n
value, n
Figure 21
= 45875
= 45875
VLED
VLED
70%
70%
CLK
CLK
PWCLK
PWCLK
SDI
SDI
LE
LE
GS
GS
VDD
VDD
.
m ax
m ax
OUT0
OUT0
STP1612PW05
STP1612PW05
100%
100%
= 65535
= 65535
3
3
IC#1
IC#1
Brightness%
Brightness%
….
….
Doc ID 15819 Rev 5
OUT15
OUT15
R-EXT
R-EXT
SDO
SDO
GND
GND
Word = 1011 0011 0011 0010
Word = 1011 0011 0011 0010
channel 15
channel 15
GS word
GS word
….
….
….
….
channel 14
channel 14
GS word
GS word
…….
…….
SDI
SDI
CLK
CLK
LE
LE
PWCLK
PWCLK
VDD
VDD
channel n
channel n
GS word
GS word
OUT0
OUT0
STP1612PW05
STP1612PW05
…….
…….
….
….
IC#n
IC#n
OUT15
OUT15
channel 1
channel 1
R-EXT
R-EXT
GS word
GS word
GND
GND
STP1612PW05
channel 0
channel 0
GS word
GS word