L99PM62XP Datasheet, PDF (10/98 Pages) STMicroelectronics – Power management IC with LIN and high speed CAN

Block diagram and pin descriptions
L99PM62XP
Table 2. Pin definition
Pin
Symbol
Function
1
AGND Analog ground
2
RxDC CAN receive data output
3
TxDC
CAN transmit data input
4
CANH CAN high level voltage I/O
5
CANL CAN low level voltage I/O
6
SPLIT CAN reference voltage output, CAN termination
7
CANSUP CAN supply input; to allow external CAN supply from V₁ or V₂ regulator.
8
NRESET Nreset output to micro controller; Internal pull-up of typ. 100 KΩ (reset state = LOW)
9
V₁
Voltage regulator 1 output: 5 V supply e.g. micro controller, CAN transceiver
10
V₂
Voltage regulator 2 output: 5 V supply for external loads (IR receiver, potentiometer,
sensors) or CAN Transceiver. V₂ is protected against reverse supply.
11
TxDL
LIN Transmit data input
RxDL -> LIN receive data output
12 RxDL/NINT NINT -> indicates local/remote wake-up events or provides a programmable timer
interrupt signal
13
OP2+
Non inverting input of operational amplifier 2
14
OP2-
Inverting input of operational amplifier 2
15
OP2_OUT Output of operational amplifier 2
16
DI
SPI: serial data input
17
DO
SPI: serial data output
18
19
20…22
23
24
CLK
CSN
WU1…3
OP1_OUT
OP1-
SPI: serial clock input
SPI: chip select not input
Wake-up Inputs 1to 3: Input pins for static or cyclic monitoring of external contacts
Output of operational amplifier 1
Inverting input of operational amplifier 1
25
OP1+
Non inverting input of operational amplifier 1
26
OUT4 High-side driver output (7 Ω, typ)
27 OUT3/FSO Configurable as high-side driver output (7 Ω, typ) or fail safe output pin (default)
28
OUT2 High-side driver output (7 Ω, typ)
29
OUT1 High-side driver output (7 Ω, typ)
30
OUT_HS High-side driver (1 Ω, typ)
31
V_S
Power supply voltage
32
LINPU High-side driver output to switch off LIN master pull up resistor
33
LIN
LIN bus line
34
REL1
Low-side driver output (2 Ω typ)
10/98
Doc ID 16363 Rev 3