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参数资料
型号： AS1110-BQFT
厂商： AUSTRIAMICROSYSTEMS AG
元件分类： LED驱动器
英文描述： 100mA, 16-CH, Diagnostics; Package Type: TQFN(5x5)-28
中文描述： 恒流，16通道LED驱动器与诊断
封装： TQFN(5x5)-28
文件页数： 14/24页
文件大小： 379K
代理商： AS1110-BQFT
14 - 24
AS1110
Datasheet - Detailed Description
8.6.2 Detailed Open-LED Error Report
The detailed open-LED error report can be read out immediately after global error mode has been run. SDI must be 1 for the first device.
Figure 15. Detailed Open-LED Error Report Timng Diagram
Detailed Open-LED Error Report Example
Consider a case where three AS1110s are cascaded in one chain. A 1 indicates a LED is on, a 0 indicates a LED is off, and an X indicates an
open LED. The open-LED test is only applied to LEDs that are turned on. This test is used with a test pattern where all LEDs are on at test time.
IC1:[1111111111111111] IC2:[111XX11111111X11] IC3:[1111111111111111]
IC2 has three open LEDs switched on due to input. 3*16 clock cycles are needed to write the entire error code out. The detailed error report
would look like this:
Comparing this report with the input data indicates that IC2 is the device with two open LEDs at position 4 and 5 and one open LED at position
14. For such a test it is recommended to enter low-current diagnostic mode first
(see Low-Current Diagnostic Mode on page 15)
to reduce screen
flickering.
This test can be used also on-the-fly without using an all 1s test pattern
(see Figure 19 on page 17)
.
Note:
In an actual report there are no spaces in the output. LEDs turned off during test time cannot be tested and will show a logic 1 in the
detailed error report.
Input Data: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
LED Status: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 X X 1 1 1 1 1 1 1 1 X 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Failure Code: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 0 0 1 1 1 1 1 1 1 1 0 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
A
E
Global Flag Readout
Detailed Error Report Readout
SDI
OEN
LD
CLK
SDO
t
H(L)
Open Error Report Output
New Data Input
t
P4
t
P1
t
P4
t
SW(ERROR)
t
SU(ERROR)
t
TESTING
DBit0
DBit1
DBit2
DBitn
DBit12
DBit13
DBit14
OBit0
OBit1
OBit2
OBitn
OBit12
OBit13
OBit14
Dont
Care
Dont
Care
OBit15
T
Flag
O
Flag
DBit15
For detailed timng information see
Timng Diagrams on page 9
.
t
GSW(ERROR)
t
GSW(ERROR)
t
GSW(ERROR)
相关PDF资料
PDF描述
AS1110-BSST 100mA, 16-CH, Diagnostics; Package Type: SSOP-24
AS1112B-BQFT 100mA, 16-CH Diagnostics; Package Type: TQFN(5x5)-32
AS1113-BQFT 50mA, 16-CH, Diagnostics
AS1113-BSST 50mA, 16-CH, Diagnostics
AS1115-BSST 64LED 5mA, UI LED driver, I2C
相关代理商/技术参数
参数描述
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