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SLS System Logic Semiconductor SL70D0948
48 OUTPUT LED DRIVER / 9 BIT PWM CONTROLLER
SL70D0948
System Logic Semiconductor
Page 2
SLS System Logic Semiconductor SL70D0948
CONTENTS
INTRODUCTION
BLOCK DIAGRAM
PIN ASSIGNMENT
PIN DESCRIPTION
FUNCTION DESCRIPTION
SPECIFICAIONS
REFERENCE APPLICATIONS
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SLS System Logic Semiconductor SL70D0948
INTRODUCTION
The SL70D0948 is LED driver / controller IC for LED display panel. This is consisted of 48 channel
LED driver , 9Bit PWM controller and 48 bit shift register. Also it is very convenient to application
because all display data can transfer by serial method.
FEATURES
Driver Output Circuits
- 48 LED Driver Outputs : N-ch Open Drain MOS Transistor Output
- LED Driving Voltage : Max. 16V (When Transistor Off)
- LED Driving Current : Max. 90mA
- LED Driving Current Control
- Outputs are 9bit PWM controlled
Data Interface
- 48bit Shift Register for 9bit data input
- 9bit parallel data format selectable
PWM controller
- 9bit PWM control ( 512 Gray scale )
- 3bit Brightness / 4bit Brightness input selectable
Package Type
- 100 pin MQFP
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SLS System Logic Semiconductor SL70D0948
BLOCK DIAGRAM
OE
PWCLK
BRMODE
BRD2
BRD1
BRD0
Control
Driver Output
9 bit PWM Counter
9 9 9 9 9 9
LED1
LED2
LED3
LED Driver (1)
LED Driver (2)
LED Driver (3)
PWM Generator (1)
PWM Generator (2)
PWM Generator (3)
LED47
LED46
LED Driver (46)
PWM Generator (46)
LED48
LED Driver (47)
LED Driver (48)
PWM Generator (47)
PWM Generator (48)
STROBE
CE2
/CE1
/RESET
DIN8
DIN0
9bit Data Register (1)
9bit Data Register (2)
9bit Data Register (3)
9
9 9 9 9 9
48bit x9bit Shift RegisterDIN 9bit DOUT 9bit
SHCLK
9bit Data Register (46)
9bit Data Register (47)
9bit Data Register (48)
DOUT8
DOUT0
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SLS System Logic Semiconductor SL70D0948
PIN ASSIGNMENT(MQFP)
5180
VDD
81
100
STROBE
SHCLK
/RESET
GND
LED31
LED32
LED33
LED34
LED35
LED36
GND
LED37
LED38
LED39
LED40
LED41
LED42
GND
VDD
DIN8
/CE1
CE2
OEB
GND
PWCLK
BRMODE
GND
LED30
LED29
LED28
LED27
LED26
LED25
GND
LED24
LED23
LED22
SL70D0948
System Logic
Semiconductor
LED21
LED20
LED19
GND
BRD0
BRD1
BRD2
GND
VDD
VDD
VDD
GND
NC
VDD
GND
LED18
LED17
LED16
LED15
LED14
LED13
GND
LED12
LED11
LED10
LED9
LED8
LED7
GND
GND
DOUT8
DOUT7
50
31
DIN7
DIN6
DIN5
DIN4
DIN3
DIN2
DIN1
DIN0
GND
LED43
LED44
LED45
LED46
1
LED47
LED48
GND
LED1
LED2
LED3
LED4
LED5
LED6
GND
DOUT0
DOUT1
DOUT2
DOUT3
DOUT4
DOUT5
DOUT6
30
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SLS System Logic Semiconductor SL70D0948
PIN DESCRIPTION
PIN No.
(MQFP)
49,52,53,54,78,99
9, 16, 23, 33,
34, 41, 48,
59, 65, 72,74
84, 91, 98
83
100, 1, 2,
3, 4, 5,
6, 7, 8
32, 31, 30,
29, 28, 27,
26, 25, 24
82
81
PIN NAME FUNCTION
VDD 5 V Power supply terminal.
GND terminals for LED Drivers and control logic.
GND
/RESET Reset input terminal (Low active).
DIN8 ~ DIN0
DOUT8 ~ DOUT0
SHCLK Shift register clock input terminal.
STROBE
All GND terminals must be connected to GND level.
Do not left any GND terminal to NC.
Data input terminals for 9bit R, G, B data.
Shift register accepts R, G, B data from these terminals.
(at rising edge of SHCLK)
Output terminals of shift register output data for next
DIN8 ~ DIN0 terminals.
Strobe signal input terminal. At rising edge of strobe signal,
48 channels of 9 bit data registers copy R, G, B data from
shift register.
80
79
76
77
75
56, 57, 58
/CE1 Chip enable signal input terminal (Low active).
Chip enable signal input terminal (High active).
CE2
OEB
PWCLK PWM generator reference clock input terminal.
BRMODE Brightness control mode input terminal.
BRD2 ~ BRD0 Brightness control data input terminal.
The device accepts SHCLK and STROBE when /CE1 = “L ”
and CE2 = “H ”.
Output enable signal input terminal.
The device outputs data when OEB = “L ”. When OEB = “H ”
all R, G, B output terminals hold high-impedance state.
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SLS System Logic Semiconductor SL70D0948
PIN DESCRIPTION (continued)
PIN No.
(MQFP)
51,55
50
17, 18, 19, 20,
21, 22,35 , 36,
37, 38, 39, 40,
42, 43, 44, 45
46, 47, 60, 61
62, 63, 64, 65
67, 68, 69, 70,
71, 72, 85, 86
87, 88, 89, 90
92, 93, 94, 95
96, 97, 10, 11
12, 13, 14, 15
PIN NAME FUNCTION
GND Reserved Pin. Must be tied to GND.
NC No Connection
LED1 ~ 48 LED driver output terminals.
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SLS System Logic Semiconductor SL70D0948
FUNCTION DESCRIPTION
SYSTEM INTERFACE
Chip Enable Input
The chip enable pins are /CE1 and CE2. The SL70D0948 can enable chip by /CE1=0, and CE2=1.
If the SL70D0948 is enable then it can receive signal that DIN,SHCLK and STROBE.
Output Enable Input
The SL70D0948 has output enable pin (OEB). If the OEB = 1, all output are off and if OEB = 0 then
all output pins are PWM output.
Data Input / Output
The SL70D0948 has 9bit data input pins (DIN[8:0]) and 9bit data output pins (DOUT[8:0]).
The output data is out after 48 times SHCLK from input data. If DOUT[8:0] pins are connected
to next device DIN[8:0] pins, the first device 48bit input data can shift the next device 48bit input
data by SHCLK. It can transfer display data to serial method so it makes device to connect directly.
The 9bit LED input data are MSB first inputted. The 9bit input data are inputted 9bit LED1 and next
9bit LED2 and next 9bit LED3 … LED48 input data by SHCLK.
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SLS System Logic Semiconductor SL70D0948
INPUT TIMING DIAGRAM
DATA INPUT
DIN8~DIN0
SHCLK
STROBE
Data Register DATA (internal)
Data Register(1)
Data Register(2)
Data Register(3)
Data Register(4)
Data Register(5)
LED2LED1LED48LED47LED46LED45
LED1[8:0]
LED2[8:0]
LED3[8:0]
LED4[8:0]
LED5[8:0]
Data Register(46)
Data Register(47)
Data Register(48)
DOUT TIMING DIAGRAM
DATA INPUT
DIN8~DIN0
SHCLK
DATA OUTPUT
SHCLK
(After 48 clocks)
DOUT8~DOUT6
LED46[8:0]
LED47[8:0]
LED48[8:0]
LED48[8:0]LED47[8:0]LED46[8:0]LED45[8:0]LED44[8:0]LED43[8:0]
61 2 3 4 5
5449 50 51 52 53
LED47[8:0]LED46[8:0]LED43[8:0] LED45[8:0]LED44[8:0]
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SLS System Logic Semiconductor SL70D0948
PWM OUTPUT WAVEFORM
OUTPUT
DRIVER
PWCLK
8 clock = 1 T
BRMODE = 0, BRD[2:0] = (1 1 1)2
OUTPUT
DRIVER
PWCLK
8 clock = 1 T
OUTPUT
DRIVER
PWCLK
OUTPUT
DRIVER
PWCLK
BRMODE = 0, BRD[2:0] = (0 0 0) 2
16 clock = 1 T
BRMODE = 1, BRD[2:0] = (111) 2
9 clock = 9/16 T
16 clock = 1 T
BRMODE = 1, BRD[2:0] = (0 0 0) 2
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SLS System Logic Semiconductor SL70D0948
PWM OUTPUT TIMING DIAGRAM
OUTPUT
DRIVER
511 T 511 T
DATA = (1FF)16
256 T 256 T
OUTPUT
DRIVER
511 T 511 T
DATA = (100)16
1 T 1 T
OUTPUT
DRIVER
511 T 511 T
DATA = (001)16
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SLS System Logic Semiconductor SL70D0948
SPECIFICATIONS
MAXIMUM RATINGS ( Ta = 25oC)
CHARACTERISTIC SYMBOL UNIT
Supply Voltage V DD V0 ~ 7.0
Output Voltage (LED1 ~ LED48) V OUT V-0.5 ~ 17
Output Current (LED1 ~ LED48) IOUT mA90
Input Voltage V IN V-0.4 ~ V DD + 0.4
GND terminal Current IGND mA1440
Clock Frequency
PWCLK
Power Dissipation P D W1.78
Operating Temperature T OPR
Storage Temperature T STG
F SR MHz15SHCLK
F PWM MHz20
RATING
RECOMMANDED OPERATING CONDITION (Ta = 25oC)
CHARACTERISTIC SYMBOL UNIT
Supply Voltage V DD V-
CONDITION
MIN.
4.5
TYP.
5.0
MAX.
5.5
o
C-40 ~85
o
C-55 ~ 150
Output Voltage (LED1~48) V OUT V-
LED1~ 48
Output
Current
Input Voltage V IN V-
DIN Data Setup Time tDSU ns- 50 - -
DIN Data Hold Time tDHLD ns- 20 - -
STROBE Setup Time tSSU ns- 50 - -
STROBE Hold Time tSHLD ns- 20 - -
Pulse Width
SHCLK, PWCLK, STROBE
Clock
Frequency
Power Dissipation P D W-
SHCLK
PWCLK
IOUT
IOH - - - -1.0
IOL - - - 1.0
tWH ns- 30 - -
tWL ns- 30 - -
F SR MHz-SHCLK - - 10
F PWM MHz-
-
-
-
0
-
-
-
-
-
-
-
15.0
V DD
1.78
88
mA
15
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SLS System Logic Semiconductor SL70D0948
SWITCHING CHARACTERISTICS ( Ta = 25oC)
CHARACTERISTIC SYMBOL UNIT
Propagation
Delay Time
(“L ” to “H ”)
Maximum
Clock
Frequency
Minimum
Pulse
Width
Data Set Up Time tDSU
Data Hold Time tDHLD
Maximum Clock Rise Time tR
Maximum Clock Fall Time
Maximum Output Rise Time
Maximum Output Fall Time
SHCLK-DOUT
STROBE
OE
SHCLK
PWCLK
SHCLK
PWCLK
STROBE
tPLH ns
F SRMAX
F PWMAX
F STMAXSTROBE
tWH
tWL
tF
tOR
tOF
CONDITION MAX.TYP.MIN.
V DD = 5.0V
V OUT = 0.4V
V CON = V DD
V IH = V DD
V IL = GND
F PWM = 10MHz
IOUT = 40mA
-
- 50 100
- 50 100
10 15 20
15 20 30
10 15 20
- 10 20
- 10 20
- 10 20
- 15 30
- 10 15
- - 10
- - 10
- 50 100
- 100 200
20 50
MHz
ns
ns
us
ns
TIMING WAVE FORM
DIN8~DIN0
SHCLK
STROBE
DOUT8~DOUT0
LED1 ~ LED48
OUTPUT
0.1VDD
DIN[8:0]
tDSU tDHLD
tWL
tWH
tR
tSSU
0.9VDD
tPLH
tPLH
tF
tSHLD
DOUT[8:0]
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SLS System Logic Semiconductor SL70D0948
PACKAGE INFORMATION
100 PIN MQFP (14 x 20 Body)
24.15
23.65
20.1
19.9
18.15
17.65
14.1
13.9
3.10 MAX
0.36
0.10
0.38
0.22
0.65
0~7
8
0.23
0.13
1.03
0.73
1.95
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SLS System Logic Semiconductor SL70D0948
REFERENCE APPLICATIONS
Power Line Connection
VDD
STROBE
SHCLK
/ RESET
GND
LED31
LED32
LED33
LED34
LED35
LED36
GND
LED37
LED38
LED39
LED40
LED41
LED42
GND
VDD
DIN8
/ CE1
DIN7
CE2
DIN6
VDD
DIN5
OEB
GND
PWCLK
BRMODE
GND
LED30
LED29
LED28
LED27
LED26
LED25
GND
LED24
LED23
SL70D0948
System Logic
Semiconductor
DIN4
DIN3
DIN1
DIN0
DIN2
GND
LED43
LED44
LED45
LED46
LED47
LED48
GND
LED1
LED22
LED2
LED21
LED3
LED20
LED4
LED19
LED5
GND
LED6
BRD0
GND
BRD1
DOUT0
BRD2
DOUT1
GND
DOUT2
VDD
DOUT3
VDD
DOUT4
VDD
DOUT5
GND
NC
VDD
GND
LED18
LED17
LED16
LED15
LED14
LED13
GND
LED12
LED11
LED10
LED9
LED8
LED7
GND
GND
DOUT8
DOUT7
DOUT6
GND
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SLS System Logic Semiconductor SL70D0948
REFERENCE APPLICATIONS (continued)
Data & Control Signal Connection
VDD
PWCLK
OEB
CE
STROBE
SHCLK
/RESET
IN8
STROBE
SHCLK
/ RESET
GND
LED31
LED32
LED33
LED34
LED35
LED36
GND
LED37
LED38
LED39
LED40
LED41
LED42
GND
VDD
DIN8
/ CE1
DIN7
IN7
CE2
DIN6
IN6
VDD
DIN5
IN5
OEB
GND
PWCLK
BRMODE
GND
LED30
LED29
LED28
LED27
LED26
LED25
GND
LED24
LED23
SL70D0948
System Logic
Semiconductor
DIN4
DIN3
DIN1
DIN0
IN4
IN3
DIN2
IN2
IN1
IN0
GND
LED43
LED44
LED45
LED46
LED47
LED48
GND
LED1
LED22
LED2
LED21
LED3
LED20
LED4
LED19
LED5
GND
LED6
BRD0
GND
BRD2
BRD1
DOUT0
DOUT1
OUT1
OUT0
VDD
GND
DOUT2
DOUT3
OUT2
OUT3
VDD
VDD
DOUT4
DOUT5
OUT5
OUT4
GND
LED18
LED17
LED16
LED15
LED14
LED13
LED12
LED11
LED10
LED9
LED8
LED7
DOUT8
DOUT7
DOUT6
OUT6
NC
VDD
GND
GND
GND
GND
OUT8
OUT7
GND
Application Ex 1.
BRMODE = 0 : The brightness is controlled by 8 steps such as 8/8 ~ 1/8.
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SLS System Logic Semiconductor SL70D0948
REFERENCE APPLICATIONS (continued)
Next
Device
9bit Data
PWCLK
DOUT[8:0]
Power
Power
Power
48 LEDs
48 LEDs
48 LEDs
48 Pins
LED Driver Outputs
48 Pins
LED Driver Outputs
48 Pins
LED Driver Outputs
STROBE
SL70D0948
SHCLK
DIN[8:0]
9bit Data9bit Data9bit Data
PWCLK
DOUT[8:0]
STROBE
SL70D0948
SHCLK
DIN[8:0]
DOUT[8:0]
STROBE PWCLK
SL70D0948
SHCLK
DIN[8:0]
Data & Control Signal Connection
Controller
9 bit Data
512 Gray Scale
SHCLK
STROBE
5 ~ 20 MHz
Oscillator
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