NXP Semiconductors
Data Sheet: Technical Data
Document Number: MC33907-MC33908D2
Rev. 6.0, 6/2019
Power system basis chip with high
speed CAN and LIN transceivers
33907
33908
The 33907/33908 SMARTMOS devices area multi-output, power supply,
integrated circuit, including HSCAN and/or LIN transceivers, dedicated to the
automotive market.
Multiple switching and linear voltage regulators, including low-power mode
(32 μA) are available with various wake-up capabilities. An advanced power
management scheme is implemented to maintain high efficiency over wide input
voltages (down to 2.7 V) and wide output current ranges (up to 1.5 A).
The 33907/33908 include enhanced safety features, with multiple fail-safe
outputs, becoming a full part of a safety oriented system partitioning, to reach a
high integrity safety level (up to ASIL D).
The built-in enhanced high-speed CAN interface fulfills the ISO11898-2 and -5
standards. The LIN interface fulfills LIN protocol specifications 1.3, 2.0, 2.1, 2.2,
and SAEJ2602-2
Features
• Battery voltage sensing & MUX output pin
• Highly flexible SMPS pre-regulator, allowing two topologies: non-inverting
buck-boost and standard buck
• Switching mode power supply (SMPS) dedicated to MCU core supply, from
1.2 V to 3.3 V delivering up to 1.5 A
• Multiple wake-up sources in low-power mode: CAN, LIN, and/or IOs
• Six configurable I/Os
• Linear voltage regulator dedicated to auxiliary functions, or to a sensor supply
(VCCA tracker or independent), 5.0 V or 3.3 V
• Linear voltage regulator dedicated to MCU A/D reference voltage or I/Os supply
(VCCA), 5.0 V or 3.3 V
POWER SYSTEM BASIS CHIP
AE SUFFIX (PB-FREE)
98ASA00173D
48-PIN LQFP-EP
Applications
• Electrical power steering
• Engine management
• Battery management
• Active suspension
• Gear box
• Transmission
• Electrical vehicle (EV), hybrid electrical vehicle
(HEV), and inverter
• Advanced driver assistance systems
+Battery
(KL30)
VDD
VSUP3
VSENSE
VAUX
Ignition Key
(KL15)
CAN BUS
VSUP3
VAUX_E
VAUX_B
VAUX
SELECT
CAN-5V
IO_0
IO_1
IO_2
IO_3
IO_4
IO_5
CANH
CANL
LIN BUS
LIN
VDD
33907/33908
GNDA
GND_COM
DGND
VCORE_SNS
FB_CORE
COMP_CORE
VCCA_E
VCCA_B
VCCA
VDDIO
MOSI
MISO
SCLK
NCS
MUX_OUT
INTB
RSTB
FS0B
DEBUG
TXD RXD
TXDL
RXDL
MCU
VCCA
VCORE or
VCCA
AD ref.
voltage
VDDIO
VDDIO
SPI
ADC Input
NMI
Reset
VPRE
DEBUG
mode
LIN
CAN
FCCU
Figure 1. 33907/33908 simplified application diagram - buck boost configuration
© 2019 NXP B.V.
