MCZ33903BS5EKR2 - SBC Gen2 w/ HS CAN & LIN | NXP | 32-SSOP-EP
Артикул: MCZ33903BS5EKR2 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $8.5 | $8,50 |
| 10 | $7.65 | $76,50 |
| 100 | $6.42 | $642,00 |
| 500 | $5.55 | $2.775,00 |
| 1.000 | $4.8 | $4.800,00 |
MCZ33903BS5EKR2 Обзор
A System Basis Chip (SBC) is an automotive power-supply and communication IC that combines a voltage regulator, bus transceivers (CAN/LIN), and digital control logic into one package. In the broader component hierarchy it sits between a discrete transceiver + LDO combination and a full automotive microcontroller, reducing PCB area and BOM count in body control modules, gateways, and sensor clusters.
Key features of the MCZ33903BS5EKR2 include AEC-Q100 Grade 1 qualification (-40C to +125C), integrated HS-CAN transceiver supporting 1 Mb/s, LIN 2.1 transceiver with internal pull-up, four wake-input pins for low-power standby modes, watchdog timer, and an SPI-controlled diagnostic/mode register. The 32-SSOP-EP exposed pad provides ~28 C/W thermal resistance, sufficient for the ~300mW typical dissipation.
Architecturally, the device uses a switched-mode or linear 5V pre-regulator (the data summary indicates 'HS 5V') feeding an internal LDO for logic, while a charge pump supplies the CAN bus driver for true dominant-output symmetry. The LIN channel uses an internal slope control for low-EMI operation.
Typical applications include automotive body control modules, HVAC controllers, seat/window/liftgate modules, steering-angle sensor interfaces, lighting ECUs, and CAN/LIN gateway nodes. Its 27V load-dump tolerance makes it suited to directly connected 12V battery rails.
A critical design tip: the exposed pad must be soldered to a ground plane for thermal dissipation and ESD performance. Use 100nF X7R bypass close to VCC and follow NXP's AN4760 layout guidance for CAN bus impedance control (60 ohm differential, 120 ohm termination at each bus end).
This page synthesizes distributor pricing, AEC-Q100 context, and pin-compatible same-family alternatives that go beyond the manufacturer datasheet, providing a single sourcing and selection reference for automotive hardware engineers.
Аналоги без доработки для MCZ33903BS5EKR2 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с MCZ33903BS5EKR2 (тот же форм-фактор и посадочное место) — отличается по Package, Product Type, Watchdog.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MCZ33905BS5EKR2
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →MCZ33905DS5EKR2
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MCZ33903BS5EK
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC33978AEKR2
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
TLE9263-3BQX
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MCZ33903BS5EKR2 Характеристики
| Product Type | System Basis Chip (SBC) Gen2 |
| Функция | HS CAN + LIN Interface with 5V Regulator |
| Корпус | 32-SSOP-EP (Exposed Pad) |
| Operating Voltage (Battery) | 5.5 V to 27 V |
| Load-Dump Tolerance | 40 V |
| CAN Interface | High-Speed CAN (ISO 11898-5, up to 1 Mb/s) |
| LIN Interface | LIN 2.1 compliant |
| Number of Wake Inputs | 4 |
| Control Interface | SPI (5V logic) |
| Рабочая температура | -40 C to +125 C (AEC-Q100 Grade 1) |
| AEC-Q100 Qualification | Qualified |
| Lead-Free / RoHS | Lead Free / RoHS Compliant |
| Тип монтажа | Surface Mount |
| Watchdog | Window watchdog integrated |
| Packaging Type | Tape and Reel (R2 suffix) |
Конфигурация выводов MCZ33903BS5EKR2
| Контакт 1 | WAKE1 — Wake input 1 (digital, edge triggered) |
| Контакт 2 | WAKE2 — Wake input 2 (digital, edge triggered) |
| Контакт 3 | WAKE3 — Wake input 3 (digital, edge triggered) |
| Контакт 4 | WAKE4 — Wake input 4 (digital, edge triggered) |
| Контакт 5 | GND — Ground reference |
| Контакт 6 | VCC — 5V regulator output (powers MCU and external circuitry) |
| Контакт 7 | VBAT — Battery supply input (5.5V to 27V nominal, 40V transient) |
| Контакт 8 | RXD_CAN — CAN receive data output (to MCU) |
| Контакт 9 | TXD_CAN — CAN transmit data input (from MCU) |
| Контакт 10 | CANH — CAN high-side bus line |
| Контакт 11 | CANL — CAN low-side bus line |
| Контакт 12 | SPLIT — CAN bus common-mode stabilization (optional capacitor) |
| Контакт 13 | LIN — LIN bus line (LIN 2.1) |
| Контакт 14 | RXD_LIN — LIN receive data output (to MCU) |
| Контакт 15 | TXD_LIN — LIN transmit data input (from MCU) |
| Контакт 16 | CS — SPI chip select (active low, from MCU) |
| Контакт 17 | SCLK — SPI clock (from MCU) |
| Контакт 18 | MOSI — SPI master-out/slave-in (data from MCU) |
| Контакт 19 | MISO — SPI master-in/slave-out (data to MCU) |
| Контакт 20 | INT — Interrupt output (active low, alerts MCU of faults/wake events) |
| Контакт 21 | RST — Reset output to MCU (open drain) |
| Контакт 22 | WD_EN — Watchdog enable input |
| Контакт 23 | NC — Not connected (per datasheet) |
| Контакт 24 | NC — Not connected (per datasheet) |
| Контакт 25 | NC — Not connected (per datasheet) |
| Контакт 26 | VSUP — Voltage supply pin (battery) |
| Контакт 27 | VSUP — Voltage supply pin (battery, redundant bond) |
| Контакт 28 | NC — Not connected (per datasheet) |
| Контакт 29 | NC — Not connected (per datasheet) |
| Контакт 30 | NC — Not connected (per datasheet) |
| Контакт 31 | NC — Not connected (per datasheet) |
| Контакт 32 | NC — Not connected (per datasheet) |
Типичное применение
MCZ33903BS5EKR2 подходит для 6 применениеs: Automotive Body Control Module (BCM), HVAC Control Module, Seat and Window Lift Module, Steering Angle Sensor Interface, Lighting ECU (Headlamp/Tail Control), CAN/LIN Gateway Node.
Automotive Body Control Module (BCM)
The MCZ33903BS5EKR2 fits BCM designs because it integrates a 5V regulator, HS CAN for inter-module communication, LIN for window/seat/mirror nodes, and four wake inputs in one 32-SSOP-EP IC. The 5.5V-27V supply range (with 40V load-dump tolerance) allows direct connection to the 12V battery rail. Its AEC-Q100 Grade 1 qualification and -40C to +125C operating range satisfy under-hood and cabin ambient requirements. Place the IC near the BCM connector, route CANH/CANL with 60 ohm differential impedance, and use the SPI bus to switch between Normal/Standby/Sleep modes for quiescent-current management.
Рекомендуется
HVAC Control Module
HVAC modules use the MCZ33903BS5EKR2 to communicate over HS CAN with the rest of the vehicle network while driving LIN actuators (blower, mode doors, blend stepper). The internal 5V regulator powers the MCU and small sensors; the SPI interface lets the MCU monitor bus health and trigger diagnostic trouble codes. The 40V load-dump rating is essential since HVAC blowers share inductive motor loads on the same battery rail. Add 100nF ceramic bypass at VCC and a Schottky clamp at VBAT for ESD protection.
Рекомендуется
Seat and Window Lift Module
Seat and window modules benefit from the MCZ33903BS5EKR2's HS CAN backbone and LIN sub-bus for local motor control ICs. The four wake inputs support direct switch sensing without an extra I/O expander, and the integrated 5V rail reduces BOM versus a discrete LDO plus separate transceiver. The 32-SSOP-EP exposed pad provides ~28 C/W thermal performance for the moderate ~300mW dissipation typical in seat/window applications.
Рекомендуется
Steering Angle Sensor Interface
The MCZ33903BS5EKR2 hosts the 5V supply for a steering-angle sensor MCU and forwards HS CAN messages to the chassis network. Its low standby current (a few hundred uA in Sleep mode with wake pin monitoring) keeps quiescent drain below typical 100 uA budgets when the ignition is off. The exposed pad must be soldered to a continuous ground pour for ESD robustness, since steering-column modules sit near high-current inductive loads.
Рекомендуется
Lighting ECU (Headlamp/Tail Control)
Lighting ECUs that drive matrix-LED or dynamic turn indicators use the MCZ33903BS5EKR2 to handle HS CAN traffic from the BCM and to provide a regulated 5V for the LED driver stage. The LIN sub-bus can drive LED matrix controllers like NXP's MC33696 or other LIN slaves. The 5.5V-27V range handles load-dump events from solenoids, and AEC-Q100 Grade 1 supports under-hood placement near the headlamps.
Рекомендуется
CAN/LIN Gateway Node
As a gateway, the MCZ33903BS5EKR2 bridges a high-speed CAN segment to a LIN sub-cluster, with the companion MCU running a routing table. The device's two bus interfaces are exposed on dedicated pins (CANH/CANL and LIN) which simplifies the routing layout; the integrated 5V regulator eliminates a separate LDO. Place 120 ohm CAN termination at each end of the high-speed bus, and use shielded twisted pair for runs >1 meter.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MCZ33903BS5EKR2 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MCZ33905BS5EKR2 | MCZ33905DS5EKR2 | MCZ33903BS5EK | MC33978AEKR2 |
|---|---|---|---|---|---|
| Package | 32-SSOP-EP | 32-SSOP-EP - same | 32-SSOP-EP - same | 32-SSOP-EP - same | 32-SSOP-EP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Function | SBC + HS CAN + LIN + 5V LDO | SBC + HS CAN + LIN + 5V LDO (wider VIN) | SBC + HS CAN + LIN + 5V LDO | SBC + HS CAN + LIN + 5V LDO | Switch/contact monitor (no CAN/LIN/reg) |
| Battery Input Range | 5.5 V to 27 V | 5V/9V/12V/15V/18V/24V (wider) | 5.5 V to 27 V | 5.5 V to 27 V | Switch monitor only |
| Load Dump Tolerance | 40 V | 40 V | 40 V | 40 V | N/A |
| CAN Bit Rate | Up to 1 Mb/s | Up to 1 Mb/s | 20 kbps Normal/Sleep variant | Up to 1 Mb/s | N/A |
| LIN Compliance | LIN 2.1 | LIN 2.1 | LIN 2.1 | LIN 2.1 | N/A |
| AEC-Q100 Grade | Grade 1 (-40C to +125C) | Grade 1 | Grade 1 | Grade 1 | Grade 1 |
Ключевые отличия
- Gen2 SBC with HS CAN + LIN in a single IC (против MC33978AEKR2)
- Narrower battery input (5.5V-27V) versus Gen3 wider-range (против MCZ33905BS5EKR2)
- Tape-and-Reel packaging (R2) vs tube (EK) (против MCZ33903BS5EK)
Заметки по проектированию
The 32-SSOP-EP exposed pad must be soldered to a continuous ground copper plane to achieve the datasheet's theta-JA. Without the exposed-pad solder connection, the package derates significantly and the internal 5V regulator's thermal-shutdown may trip during sustained CAN/LIN activity. Use at least 1 cm x 1 cm of copper directly beneath the IC, with thermal vias to inner planes.
Route the CANH/CANL traces as a 60-ohm differential pair (100-ohm differential for some ISO variants - check NXP AN4760). Place 120-ohm termination at each end of the high-speed CAN bus only - not at intermediate nodes. Keep the CAN bus traces away from switching power traces by at least 3 mm. Place a 100nF X7R 0603 bypass as close as possible to each VCC pin.
Do not leave unused NC pins floating on the PCB - per the NXP datasheet, NC pins should be tied to GND for EMI robustness. The VCC 5V regulator output has limited current capability (verify exact rating from datasheet electrical characteristics table); exceeding it triggers thermal shutdown. Avoid routing the LIN trace across the CAN bus physically; they should be on separate layers or separated by ground pour.
Информация о соответствии
AEC-Q100 Grade 1 qualified per NXP product family datasheet. RoHS and lead-free status confirmed by DigiKey product listing. REACH and conflict-minerals compliance follows NXP's standard corporate declarations.
