NCV7361A_05 Datasheet, PDF (16/28 Pages) ON Semiconductor – Voltage Regulator with Integrated LIN Transceiver

NCV7361A
The 4 mA pulldown current source is used if the input
voltage V_IN > high level voltage V_ENH. If the input voltage
drops below the low level of EN V_ENL, the second current
source is used. The resulting pulldown current in this case
is 100 mA.
V_SUP
The wide input voltage range allows different EN control
possibilities. If the EN input is connected to an CMOS
output of the MCU, a falling edge switches the NCV7361A
into sleep mode (the regulator is also switched off). The
wake−up is only possible via the bus line.
1000
EN
4 mA
Voltage
Limiter
96 mA
100
Enable
10
RIN_HL
RIN_LH
Figure 23. EN Input Circuitry
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V_IN (V)
Figure 24. R_IN Characteristics of EN Input
V_BAT
LIN−BUS
+
C_IN
NCV7361A
V_SUP
V_OUT
EN
RESET
GND
TxD
BUS
200p
RxD
+
C_load
Figure 25. EN Controlled via MCU
MCU
+5 V
V_BAT
LIN−BUS
+
C_IN
NCV7361A
V_SUP
V_OUT
EN
RESET
GND
TxD
BUS
200p
RxD
+
C_load
Figure 26. Permanent Normal Mode
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16
MCU
+5 V