LAMP DRIVER. M1355 Datasheet

M1355 DRIVER. Datasheet pdf. Equivalent

M1355 Datasheet
Recommendation M1355 Datasheet
Part M1355
Description 3-CHANNEL RGB LED LAMP DRIVER
Feature M1355; MOSDESIGN SEMICONDUCTOR CORP. 3-CHANNEL RGB LED LAMP DRIVER LED DRIVER M1355 GENERAL DESCRIPTION .
Manufacture MOSDESIGN
Datasheet
Download M1355 Datasheet





MOSDESIGN M1355
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
3-CHANNEL RGB LED LAMP DRIVER
LED DRIVER
M1355
GENERAL DESCRIPTION
The M1355 is a 3-channel PWM enabled current sink driver for RGB LED or display applications. M1355 includes a serial
buffer and data latches which convert serial input data into parallel output format, and built-in oscillator for PWM functioning.
Data and clock buffer outputs are designed for cascading another chip. It is easy to be designed in applications that need mixing
RGB light sources for multi-color output. The output current is determined by an external resistor and the brightness control code,
both set by users.
FEATURES
CMOS technology.
3 output channels for RGB LED lamps.
Output current invariant to load voltage change.
8-bits luminance data with PWM current output.
Built-in buffers for cascading clock, CK, SDA,STB to other devices.
APPLICATIONS
LED Decorative Lighting.
PWM Signal Generator.
Keypad backlighting
BLOCK DIAGRAM
OUT1 (BLUE)
OUT2 (GREEN)
OUT3 (RED)
REXT
LATI
CLKI
SDAI
Current
Setting
Output Driver
Oscillator
& Counter
8
8-bit Comparator
8
8-bit Latch
8
(MSB)
Output Driver
8
8-bit Comparator
8
8-bit Latch
8
24-bit shift register
Output Driver
8
8-bit Comparator
8
8-bit Latch
8
(LSB)
LATO
CLKO
SDAO
1/6 2009-12-17



MOSDESIGN M1355
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
3-CHANNEL RGB LED LAMP DRIVER
LED DRIVER
M1355
PIN ASSIGNMENT
M1355
N.C
REXT
LATI
1
14 VDD
N.C
LATO
SDAI
CLKI
VSS
SDAO
CLKO
OUT3
OUT1 7
8 OUT2
PIN DESCRIPTION
NO.
1 , 13
2
3
4
5
6
7~9
10
11
12
14
Pin Name
NC
REXT
LATI
SDAI
CLKI
VSS
OUT1~3
CLKO
SDAO
LATO
VDD
Type
Description
No Connection
INPUT External Resistor For Setting Up Output Current For All Output Channels
INPUT Latch Signal Input For 8-Bit Latches
INPUT Serial Data Input
INPUT System Clock Input
GND Negative power supply
OUTPUT NMOS Output Driver(open-drain)
OUTPUT System Clock Output
OUTPUT Serial Data Output
OUTPUT Latch Signal Output For 8-Bit Latches
POWER Positive power supply
2/6 2009-12-17



MOSDESIGN M1355
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
3-CHANNEL RGB LED LAMP DRIVER
LED DRIVER
M1355
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
Characteristics
Logic Input Voltage
Clock Frequency
Output Sustaining Voltage
Output Continuous Current, Each Channel
Power Dissipation, Each Channel
Operating Temperature
Storage Temperature
Symbol
VDD
VIN
FCLK
VDS
IOUT
PDISP
TOPR
TSTR
Rating
3.5 ~ 6
-0.3 ~ +0.3
660
6
20
100
-20 ~ +85
-60 ~ +150
Unit
V
V
KHz
V
mA
mW
ELECTRICAL CHARACTERISTICS
(VDD=5V, Ta=25, Unless Otherwise Specified)
Characteristics
Supply Voltage
Output Voltage
Output Current
Input “H”
Voltage “L”
level
level
Output Leakage Current
OUT1
OUT2
OUT3
Symbol
VDD
VDS
IOUT
VIH
VIL
IOH
IOUT 1
IOUT 2
IOUT 3
Current Skew
ΔIOUT
Output Current
Variation vs. Supply
Voltage Variation
Pull-down Resistor
RIN
“OUT Off” IDD (Off) 1
Supply
Current
“OUT On”
“OUT Off”
IDD (Off) 1
IDD (Off) 1
“OUT On” IDD (Off) 1
Condition
OUT1, OUT2, OUT3 terminals
DC Test Circuit
Ta = -20~85ºC
Ta = -20~85ºC
VOH = 5.0V
VDS = 1.0V, Rex t = 6.2K
GBLUE = (1,1,1,1,1,1,1,1)
VDS = 1.0V, Rext = 6.2K
GGREEN = (1,1,1,1,1,1,1,1)
VDS =1.0V, Rext = 6.2K
GRED = (1,1,1,1,1,1,1,1)
IOUT = 20mA
VDS = 1.0V
Rext = 6.2K
VDD within 2.7V and 3.3V,
Rext = 6.2K
VDD within 4.5V and 5.5V,
Rext = 6.2K
LATI
Rext =6.2K, OUT1~OUT3 = Off,
VDD = 3.3V
Rext =6.2K, OUT1~OUT3 = On,
VDD = 3.3V
Rext =6.2K, OUT1~OUT3 = Off,
VDD = 5V
Rext =6.2K, OUT1~OUT3 = On,
VDD = 5V
Min.
3.3
5
0.7 VDD
0
Typ.
5.0
0
20
20
20
±10
±20
±10
250
1
1
2
2
Max.
5.5
5.5
40
VDD
0.3 VDD
Unit
V
V
mA
V
V
μA
mA
mA
mA
%
%
K
2
2
mA
3
3
3/6 2009-12-17





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