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L9924L датащи(PDF) 28 Page - STMicroelectronics

номер детали L9924L
подробное описание детали  Automotive vehicle conform truck car alternator regulator IC with LIN
PDF  84 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9924L датащи(HTML) 28 Page - STMicroelectronics

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Electrical specifications
L9924L
28/84
DocID028840 Rev 3
4.3.9
Pin "GATE"
The external power MOS provides a PWM regulated current to flow from the system battery
into the field coil for system voltage regulation. The GATE pin provides the necessary
current to turn-on and turn-off the external power MOS.
The gate-source-voltage of the external power MOS is limited by the driver circuit.
In order to drive different kinds of external power MOS and to adjust the gate currents
according to environmental changes (e.g. temperature, emission levels, excitation signal
edges duration) the gate charging and discharging currents are programmable via SPI,
register 0x03 [12.4.12].
When the voltage between DRAIN an SOURCE pins become greater than VSCdx the device
switches the external power MOS off, activating a fast gate discharging current.
Table 18. Electrical characteristics pin "GATE"
#
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Drivers for external high/low side power MOS
1IGHx(on)
Turn on current
(SOURCE stage)
Tj = 25 °C
-
0 -> -11.55,
-1.65 steps
-mA
1IGHx(off)
Turn off current
(SINK stage)
Tj = 25 °C
0 -> +11.55,
+1.65 steps
-mA
9VGHxH
High level voltage
V(A+/B+) = 6 V
V(SOURCE)
+7V
--
V
V(A+/B+) = 12 V
V(SOURCE)
+9
V(SOURCE)
+11
VSOURCE
+13
V
V(A+/B+) = 24 V
V(SOURCE)
+9
V(SOURCE)
+11
VSOURCE
+13
V
10
RGSHx
Gate-source passive
discharge resistance
--
100
-
kΩ



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