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| 型號(hào)： | TLE8201R |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO36 |
| 封裝： | PLASTIC, SOP-36 |
| 文件頁(yè)數(shù)： | 30/45頁(yè) |
| 文件大小： | 593K |
| 代理商： | TLE8201R |
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TLE 8201R
Data Sheet Rev. 2.0
36
2006-06-07
Short Circuit in On-state
If a switch is already on and the current rises above the shutdown threshold
I
SD for
longer than the shutdown delay time
t
dSD the output transistor is turned off and the
corresponding diagnosis bit is set. This is independent of the voltage Vout. See
Figure 17
Short circuit protection in on-state
4.6.1.2
Open Load
For the high-side switches, an open-load in OFF-state scheme is used as shown in
Figure 18. The output is pulled up by a current source
I
OpL. In OFF-state, the output
voltage is monitored and compared to the threshold
V
OpL. If the voltage rises above this
threshold, the open-load signal is set to high. This is equivalent to comparing the load
resistance to the value
V
OpL / IOpL. The open load error bit is latched and can be reset
by the SPI status register reset or by a power-on reset.
The pull-up current can be switched on and off by the OpLxON bits. This bit should be
set to LOW (i.e. pull-up current switched off) if an output is used to drive LEDs because
they may emit light if biased with the pull-up current.
t
dSD8
ISC8
ISD8
I
OUT
OUT 8...11
short toGND
t
I
OUT
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