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| 型号： | MCZ33903B5EK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 36/106页 |
| 文件大小： | 0K |
| 描述： | IC SBC CAN HS 5.0V 32SOIC |
| 标准包装： | 42 |
| 应用： | 系统基础芯片 |
| 接口： | CAN，LIN |
| 电源电压： | 5.5 V ~ 28 V |
| 封装/外壳： | 32-BSOP（0.295"，7.50mm 宽）裸露焊盘 |
| 供应商设备封装： | 32-SOICW 裸露焊盘 |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
35
33903/4/5
FUNCTIONAL DESCRIPTION
INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The MC33903_4_5 is the second generation of System
Basis Chip, combining:
- Advanced power management unit for the MCU, the
integrated CAN interface and for the additional ICs such as
sensors, CAN transceiver.
- Built in enhanced high speed CAN interface (ISO11898-
2 and -5), with local and bus failure diagnostic, protection,
and fail-safe operation mode.
- Built in LIN interface, compliant to LIN 2.1 and J2602-2
specification, with local and bus failure diagnostic and
protection.
- Innovative hardware configurable fail-safe state machine
solution.
- Multiple LP modes, with low current consumption.
- Family concept with pin compatibility; with and without
LIN interface devices.
FUNCTIONAL PIN DESCRIPTION
POWER SUPPLY (VSUP/1 AND VSUP2)
Note: VSUP1 and VSUP2 supplies are externally available
on all devices except the 33903D, 33903S, and 33903P,
where these are connected internally.
VSUP1 is the input pin for the internal supply and the VDD
regulator. VSUP2 is the input pin for the 5 V-CAN regulator,
LIN’s interfaces and I/O functions. The VSUP block includes
over and undervoltage detections which can generate
interrupt. The device includes a loss of battery detector
connected to VSUP/1.
Loss of battery is reported through a bit (called BATFAIL).
This generates a POR (Power On Reset).
VDD VOLTAGE REGULATOR (VDD)
The regulator has two main modes of operation (Normal
mode and LP mode). It can operate with or without an
external PNP transistor.
In Normal mode, without external PNP, the max DC
capability is 150 mA. Current limitation, temperature pre-
warning flag and overtemperature shutdown features are
included. When VDD is turned ON, rise time from 0 to 5.0 V is
controlled. Output voltage is 5.0 V. A 3.3 V option is available
via dedicated part number.
If current higher than 150 mA is required, an external PNP
transistor must be connected to VE (PNP emitter) and VB
(PNP base) pins, in order to increase total current capability
and share the power dissipation between internal VDD
transistor and the external transistor. See External Transistor
Q1 (VE and VB). The PNP can be used even if current is less
than 150 mA, depending upon ambient temperature,
maximum supply and thermal resistance. Typically, above
100-200 mA, an external ballast transistor is recommended.
VDD REGULATOR IN LP MODE
When the device is set in LP VDD ON mode, the VDD
regulator is able to supply the MCU with a DC current below
typically 1.5 mA (LP-ITH). Transient current can also be
supplied up to a tenth of a mA. Current in excess of 1.5 mA
is detected, and this event is managed by the device logic
(Wake-up detection, timer start for overcurrent duration
monitoring or watchdog refresh).
EXTERNAL TRANSISTOR Q1 (VE AND VB)
The device has a dedicated circuit to allow usage of an
external “P” type transistor, with the objective to share the
power dissipation between the internal transistor of the VDD
regulator and the external transistor. The recommended
bipolar PNP transistor is MJD42C or BCP52-16.
When the external PNP is connected, the current is shared
between the internal path transistor and the external PNP,
with the following typical ratio: 1/3 in the internal transistor
and 2/3 in the external PNP. The PNP activation and control
is done by SPI.
The device is able to operate without an external
transistor. In this case, the VE and VB pins must remain
open.
5 V-CAN VOLTAGE REGULATOR FOR CAN AND
ANALOG MUX
This regulator is supplied from the VSUP/2 pin. A capacitor
is required at 5 V-CAN pin. Analog MUX and part of the LIN
interfaces are supplied from 5 V-CAN. Consequently, the
5 V-CAN must be ON in order to have Analog MUX operating
and to have the LIN interface operating in TXD/RXD mode.
The 5 V-CAN regulator is OFF by default and must be
turned ON by SPI. In Debug mode, the 5 V-CAN is ON by
default.
V AUXILIARY OUTPUT, 5.0 AND 3.3 V
SELECTABLE (VB-AUX, VC-AUX, AND VCAUX) -
Q2
The VAUX block is used to provide an auxiliary voltage
output, 5.0 or 3.3 V, selectable by the SPI. It uses an external
PNP pass transistor for flexibility and power dissipation
constraints. The external recommended bipolar transistors
are MJD42C or BCP52-16.
An overcurrent and undervoltage detectors are provided.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCZ33903B5EKR2 | 功能描述:CAN 接口集成电路 SBC W/HIGH SPEED CAN 5V RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| MCZ33903B5R2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:SBC Gen2 with CAN High Speed and LIN Interface |
| MCZ33903BD3EK | 功能描述:CAN 接口集成电路 Canvas 32 DL (3.3V) RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| MCZ33903BD3EKR2 | 功能描述:CAN 接口集成电路 Canvas 32 DL (3.3V) RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| MCZ33903BD3R2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:SBC Gen2 with CAN High Speed and LIN Interface |
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