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参数资料
| 型号： | AS1109 EB |
| 厂商： | ams |
| 文件页数： | 14/25页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL AS1109 |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 0.5 ~ 100 mA |
| 输出及类型： | 8，非隔离 |
| 输出电压： | 0 ~ 15 V |
| 特点： | 过热保护，开路 LED，短路 LED，诊断 |
| 输入电压： | 3 ~ 5.5 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS1109 |
AS1109
Datasheet - D e t a i l e d D e s c r i p t i o n
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.
Figure 16. Detailed Open-LED Error Report Timing Diagram
OEN
Global Flag Readout
t TESTING
t H(L)
Detailed Error Report Readout
LD
t SU(ERROR)
t GSW(ERROR)
t P4
CLK
t GSW(ERROR)
t GSW(ERROR)
SDI
t SW(ERROR)
DBit7
DBit6
DBit5
DBit4
DBit3
DBit2
DBit1
DBit0
Don’t
Care
New Data Input
SDO
T Flag
O Flag
OBit7
OBit6
OBit5
OBit4
OBit3
OBit2
OBit1
OBit0
Don’t
Care
t P4
Open Error Report Output
t P1
Detailed Open-LED Error Report Example
Consider a case where five AS1109s 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:[11111111] IC2:[111XX111] IC3:[11111111] IC4:[1X111111] IC5:[11111111]
IC2 has two open LEDs and IC4 has one open LED switched on due to input. 5*8 clock cycles are needed to write the entire error code out. The
detailed error report would look like this:
Input Data: 1 1 1 1 1 1 1 1
LED Status: 1 1 1 1 1 1 1 1
Failure Code: 1 1 1 1 1 1 1 1
11111111
111XX111
11100111
11111111
11111111
11111111
11111111
1X111111
10111111
11111111
11111111
11111111
Comparing this report with the input data indicates that IC2 is the device with two open LEDs at position 4 and 5 and IC4 with an open LED at
second position. For such a test it is recommended to enter low-current diagnostic mode first (see Low-Current Diagnostic Mode on page 14) to
reduce onscreen flickering.
Note: In an actual report there are no spaces in the output.
LEDs turned off during test time cannot be tested.
Revision 1.21
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相关PDF资料 |
PDF描述 |
|---|---|
| AS1110 EB | BOARD EVAL AS1110 |
| AS1112 EB | BOARD EVAL AS1112 |
| AS1115 DB-YELLOW | BOARD DEMO AS1115 YELLOW |
| AS1116 DB-YELLOW | BOARD DEMO AS1116 YELLOW |
| AS3691A EB | BOARD EVAL AS3691A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1109-QF_EK_ST | 功能描述:AS1109 8, Non-Isolated Output LED Driver Evaluation Board 制造商:ams 系列:- 零件状态:有效 电流 - 输出/通道:100mA 输出和类型:8，非隔离 电压 - 输出:15V 特性:过热保护，开路 LED，短路 LED，诊断 电压 - 输入:3 V ~ 5.5 V 所含物品:板 使用的 IC/零件:AS1109 标准包装:1 |
| AS110R0JLF | 制造商:TT Electronics / IRC 功能描述:AS110R0JLF |
| AS110R2FLF | 制造商:TT Electronics / IRC 功能描述:AS110R2FLF |
| AS110R2HLF | 制造商:TT Electronics / IRC 功能描述:AS110R2HLF |
| AS110R2JLF | 制造商:TT Electronics / IRC 功能描述:AS110R2JLF |
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