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BTS7020-2EPA датащи(PDF) 17 Page - Infineon Technologies AG

номер детали BTS7020-2EPA
подробное описание детали  Smart High-Side Power Switch
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производитель  INFINEON [Infineon Technologies AG]
домашняя страница  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

BTS7020-2EPA датащи(HTML) 17 Page - Infineon Technologies AG

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Data Sheet
17
Rev. 1.00
2017-08-24
BTS7020-2EPA
PROFETTM+2
Power Supply
6.1.1
Unsupplied
In this state, the device is either unsupplied (no voltage applied to VS pin) or the supply voltage is below the
undervoltage threshold.
6.1.2
Power-up
The Power-up condition is entered when the supply voltage (VS) is applied to the device. The supply is rising
until it is above the undervoltage threshold VS(OP) therefore the internal power-on signals are set.
6.1.3
Sleep mode
The device is in Sleep mode when all Digital Input pins (INn, DEN, DSEL) are set to “low”. When BTS7020-2EPA
is in Sleep mode, all outputs are OFF. The current consumption is minimum (see parameter IVS(SLEEP)). No
Overtemperature or Overload protection mechanism is active when the device is in Sleep mode. The device
can go in Sleep mode only if the protection is not active (counter = 0, see Chapter 8.3.1 for further details).
6.1.4
Stand-by mode
The device is in Stand-by mode as long as DEN pin is set to “high” while input pins are set to “low”. All channels
are OFF therefore only Open Load in OFF diagnosis is possible. Depending on the load condition, either a fault
current IIS(FAULT) or an Open Load in OFF current IIS(OLOFF) may be present at IS pin. In such situation, the current
consumption of the device is increased.
6.1.5
Active mode
Active mode is the normal operation mode of BTS7020-2EPA. The device enters Active mode as soon as one IN
pin is set to “high”. Device current consumption is specified with IGND(ACTIVE) (measured at GND pin because the
current at VS pin includes the load current). Overload, Overtemperature and Overvoltage protections are
active. Diagnosis is available.
6.2
Undervoltage on VS
Between VS(OP) and VS(UV) the undervoltage mechanism is triggered. If the device is operative (in Active mode)
and the supply voltage drops below the undervoltage threshold VS(UV), the internal logic switches OFF the
output channels.
As soon as the supply voltage VS is above the operative threshold VS(OP), the channels having the corresponding
input pin set to “high” are switched ON again. The restart is delayed with a time tDELAY(UV) which protects the
device in case the undervoltage condition is caused by a short circuit event (according to AEC-Q100-012), as
shown in Figure 14.
Table 8
Device function in relation to operation modes and VS voltage
Operative Mode Function
VS in undervoltage
VS not in undervoltage
Sleep
Channels
OFF
OFF
Diagnosis
OFF
OFF
Active
Channels
OFF
available
Diagnosis
OFF
available in OFF and ON states
Stand-by
Channels
OFF
OFF
Diagnosis
OFF
available in OFF state


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