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| 型号： | ZXLD1371QESTTC |
| 厂商： | Diodes Inc |
| 文件页数： | 36/42页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER |
| 特色产品： | ZXLD1371 LED Driver Controller |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | ZXLD1371QESTTCDIDKR |
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A Product Line of
Diodes Incorporated
ZXLD1371
Applications Information (cont.)
FLAG/STATUS Outputs
The FLAG/STATUS outputs provide a warning of extreme operating or fault conditions. FLAG is an open-drain logic
output, which is normally off, but switches low to indicate that a warning, or fault condition exists. STATUS is a DAC
output, which is normally high (4.5V), but switches to a lower voltage to indicate the nature of the warning/fault.
Conditions monitored, the method of detection and the nominal STATUS output voltage are given in the following table
(Note 15):
Table 2
Warning/Fault condition
Normal operation
Supply under-voltage
Output current out of regulation
(Note 17)
Driver stalled with switch ‘on’, or
‘off’ (Note 18)
Severity
(Note 16)
1
2
2
2
Monitored
parameters
V AUX < 5.0V
V IN < 5.6V
V SHP outside normal
voltage range
t ON , or t OFF > 100μs
FLAG
H
L
L
L
L
Nominal STATUS voltage
4.5V
4.5V
< 3.6V
3.6V
3.6V
Device temperature above
maximum recommended
3
T J > 125°C
L
1.8V
operating value
Sense resistor current I RS above
specified maximum
4
V SENSE > 0.3V
L
0.9V
Notes:
15. These STATUS pin voltages apply for an input voltage,V IN , of 7.5V < V IN < 60V. Below 7.5V the STATUS pin voltage levels reduce and therefore
may not report the correct status. For 5.4V < V IN < 7.5V the flag pin still reports an error by going low. At low V IN in Boost and Buck-boost modes
an over-current status may be indicated when operating at high boost ratios -– this due to the feedback loop increasing the sense voltage.
16. Severity 1 denotes lowest severity.
17. This warning will be indicated if the output power demand is higher than the available input power; the loop may not be able to maintain
regulation.
18. This warning will be indicated if the gate pin stays at the same level for greater than 100μs (e.g. the output transistor cannot pass enough current
to reach the upper switching threshold).
Figure 15. Status levels
ZXLD1371
Document number: DS35436 Rev. 1 - 2
36 of 42
www.diodes.com
February 2012
? Diodes Incorporated
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相关代理商/技术参数 |
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|---|---|
| ZXLD1374 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST |
| ZXLD1374_11 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST |
| ZXLD1374EST20TC | 功能描述:LED照明驱动器 60V 1.5A BUCK/BOOST LED DRIVER AEC-Q100 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| ZXLD1601 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:ADJUSTABLE DC - DC BOOST CONVERTER WITH INTERNAL SWITCH IN SC70 |
| ZXLD1601H6 | 制造商:Diodes Incorporated 功能描述:LCD/OLED BIAS BOOST CONVERTER SMD |
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