Document Number: MC33907-MC33908D2
Rev. 5.0, 10/2016
NXP Semiconductors
Data Sheet: Advance Information
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.
POWER SYSTEM BASIS CHIP
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
AE SUFFIX (PB-FREE)
98ASA00173D
48-PIN LQFP-EP
Features
• Battery voltage sensing & MUX output pin
Applications
• 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
• 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
• Linear voltage regulator dedicated to MCU A/D reference voltage or I/Os
supply (VCCA), 5.0 V or 3.3 V
+Battery
(KL30)
VDD
33907/33908
VCORE_SNS
FB_CORE
MCU
VSUP3
VSENSE
COMP_CORE
VCCA_E
VCCA_B
VCCA
VAUX_E
VAUX_B
VCCA
AD ref.
voltage
VCORE or
VCCA
VDDIO
VAUX
VAUX
SELECT
CAN-5V
MOSI
MISO
SCLK
SPI
NCS
Ignition Key
IO_0
MUX_OUT
ADC Input
NMI
(KL15)
INTB
IO_1
IO_2
VDDIO
RSTB
Reset
IO_3
IO_4
VDDIO
IO_5
FS0B
VPRE
CANH
CAN BUS
DEBUG
mode
DEBUG
CANL
VSUP3
TXDL
RXDL
LIN BUS
LIN
LIN
GNDA
GND_COM
DGND
TXD RXD
VDD
FCCU
CAN
Figure 1. 33907/33908 simplified application diagram - buck boost configuration
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© 2016 NXP B.V.