MY9163SA [MY-SEMI]
16-Channel High Accuracy Constant Current LED Driver With Error Diagnostics & Power Saving & Global Current Control;
| 型号： | MY9163SA |
| 厂家： | 
MY-SEMI INC. |
| 描述： | 16-Channel High Accuracy Constant Current LED Driver With Error Diagnostics & Power Saving & Global Current Control |
| 文件： | 总1页 (文件大小：69K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MY9163
16-Channel High Accuracy Constant Current LED Driver
With Error Diagnostics & Power Saving & Global Current Control
MY-Semi
General Description
Features
✦ 3.0V ~ 5.5V Operating supply voltage
✦ 3~90mA/5V Constant current output range
✦ 3~70mA/3.3V Constant current output range
✦ 17V Rated output channels for long LED strings
✦ ±1.5% (typ.) LED Current accuracy between channels
✦ ±3% (typ.) LED Current accuracy between chips
✦ ±0.1% Output current regulation capability
✦ Compulsory error detection includes LED Open, LED
Short, Output port leakage, Output short to GND,
Output short to Power
The MY9163, 16-channel constant current LED driver
operates over a 3.0V ~ 5.5V input voltage range, supports
error diagnostics, power saving function and current gain
control. The device provides 16 open-drain constant
current sinking outputs that are rated to 17V and delivers
up to 90mA of high accuracy current to each string of LED.
The current at each output is programmable by means of
an external current-sensing resistor and can be adjusted
by 256 steps. The MY9163 features a fast 30MHz DCK
input, allowing large amount data transfer and a wide LED
dimming (on/off) range to be implemented. The MY9163
offers a 4-wire serial interface, a 16-bit shift register, and a
16-bit transparent latch. The serial interface allows a
microcontroller to configure the output channels using
four inputs (DI, DCK, LAT, and ENB) and a data output
(DO). DO allows multiple drivers to be cascaded and
operated together.
✦ Real time error detection includes LED Open, LED Short
✦ Compulsory error detection with 0.1mA
✦ Fast error detection: 80ns (min.)
✦ Short detection threshold voltage selection
(2 / 3 / 4 / 4.5 Volt)
✦ Power saving mode: sleep mode and 0-data mode
✦ Sleep mode to lower down the supply current to 0.1uA
✦ 0-data mode to lower down the supply current to 0.1uA
✦ Over-temperature warning
The MY9163 provides compulsory error detection. Under
compulsory error detection, the display image will not be
affected since the interval and current are small. Differing
from error mode selections; the specified diagnostic can be
performed. The error will be stored back to the shift
register and could be read out from the DO pin. Moreover,
the threshold voltage for LED short detection can be
selected to comply with different LED string configuration.
✦ 8bits global current control: ranges from 17% to 200%
✦ 30ns fast current transient response
✦ Output current setting by one external resister
✦ Schmitt trigger input
The MY9163 is available in a 24-pin SOP / SSOP /
TSSOP / QFN package (pin definition compatible with
MY9161) and specified over the -40°C to +85°C ambient
temperature range.
✦ Power on reset
✦ Stagger output delay for EMI reduction
✦ -40°C to +85°C Ambient temperature range
Applications
❑ Traffic Signals/Signs
Order information
PART
PACKAGE INFORMATION
❑ Variable Message Sign (VMS)
❑ Public Transportation (Train, Bus, Underground)
❑ Indoor and Outdoor Video Display
MY9163SA
MY9163SB
MY9163SS
SOP24-236mil-1.0mm
2000 pcs/Reel
1000 pcs/Reel
2500 pcs/Reel
SOP24-300mil-1.27mm
SSOP24-150mil-0.635mm
❑
LCD Display Backlighting
TSSOP24-173mil-0.65mm
(Exposed Pad)
MY9163TE
2500 pcs/Reel
MY9163QF QFN24-4mmx4mm-0.5mm
MY9163QT QFN24-4mmx4mm-0.5mm
3000 pcs/Reel
3000 pcs/Reel
Typical Operating Circuits
Package Configuration
Mar. 2012 Ver. 1.0
MY-Semi Inc.
For pricing, delivery, and ordering information, pleases contact MY-Semi Inc. at +886-3-560-1668,
or email to INFO@MY-Semi.com.tw or visit MY-Semi’s website at www.MY-Semi.com or www.MY-Semi.com.tw
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