Document Number: MC33907-MC33908D2
Rev. 5.0, 10/2016
NXP Semiconductors
Data Sheet: Advance Information
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© 2016 NXP B.V.
Power system basis chip with high
speed CAN and LIN transceivers
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
(V
CCA
tracker or independent), 5.0 V or 3.3 V
• Linear voltage regulator dedicated to MCU A/D reference voltage or I/Os
supply (V
CCA
), 5.0 V or 3.3 V
Figure 1. 33907/33908 simplified application diagram - buck boost configuration
POWER SYSTEM BASIS CHIP
33907
33908
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
VAUX_E
VAUX_B
VAUX
CAN-5V
MOSI
MISO
SCLK
NCS
RXD
TXD
CANH
CANL
SELECT
INTB
RSTB
FS0B
DEBUG
IO_0
IO_1
IO_2
IO_3
IO_4
IO_5
GND_COM
V
DDIO
CAN BUS
V
DDIO
V
PRE
DEBUG
mode
GNDA
DGND
V
CORE
or
V
CCA
VSUP1
SW_PRE2
VPRE
SW_CORE
FB_CORE
VCCA_E
VCCA_B
VCCA
VSENSE
COMP_CORE
VSUP2
BOOTS_PRE
BOOTS_CORE
GATE_LS
SW_PRE1
VCORE_SNS
VSUP3
+Battery
(KL30)
VDDIO
MUX_OUT
V
AUX
V
CCA
MCU
SPI
VDD
ADC Input
AD ref.
voltage
NMI
Reset
FCCU
CAN
Ignition Key
(KL15)
V
DD
VSUP3
LIN BUS
LIN
RXDL
TXDL
LIN
33907/33908