MCZ33905CS5EKR2 - 5V SBC CAN+LIN System Basis Chip | NXP
MPN: MCZ33905CS5EKR2 ✓ Hoạt độngMCZ33905CS5EKR2 Tóm tắt
A System Basis Chip (SBC) is a power management integrated circuit category that combines multiple discrete functions - typically a microcontroller voltage regulator, a CAN/LIN physical-layer transceiver, and diagnostic/protection features - into a single package. The SBC sits at the boundary between the 12 V automotive bus and the 5 V or 3.3 V ECU module, replacing what would otherwise require separate LDO, transceiver, and supervisory ICs. Within the power-management hierarchy, an SBC is one rung above a discrete linear regulator and one rung below the full power distribution architecture of an electronic control unit (ECU).
Key features of the MCZ33905CS5EKR2 include the externally configurable 5.0 V/3.3 V regulator with optional external PNP pass transistor for current sharing, extremely low quiescent current in low-power modes to preserve battery life, built-in voltage/current/temperature protection, local and bus failure diagnostics on the CAN interface, and a wake-up friendly low-power state machine. The integrated CAN transceiver supports baud rates from 40 kb/s to 1.0 Mb/s, while the LIN port is compliant with LIN 2.1 and J2602-2.
The SBC uses a mixed bipolar-CMOS process technology on a power SOIC-EP lead frame, exposing the die pad for direct thermal relief. The exposed pad lowers junction-to-ambient thermal resistance so the part can sustain continuous CAN bus loads that drive significant internal dissipation. Independent enable and fault pins let the MCU supervise the regulator and selectively wake the bus transceivers in deep-sleep operation.
Typical applications include automotive body ECUs (door modules, body controllers), chassis and powertrain control nodes that require high-speed CAN, HVAC and lighting modules with both CAN and LIN buses, and industrial CAN nodes operating from 12 V or 24 V supplies. The wide 9 V to 27 V operating range also makes the part attractive for agricultural, marine, and off-road vehicle ECUs.
When designing with this SBC, route the exposed pad to a continuous copper plane and use the lowest ESR ceramic caps datasheet-suggested on VCC, VCAN, and VBAT to keep regulator ripple within datasheet limits. Enable the internal 5 V CAN supply only after MCU firmware has finished its boot sequence to avoid back-powering through the CAN bus.
This page synthesizes distributor pricing, drop-in alternatives from the NXP 33903/33904/33905 family, and practical PCB thermal guidance that go beyond the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho MCZ33905CS5EKR2 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
MCZ33904CS3EKR2
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MCZ33903DS3EKR2
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC33905CS5EKR2
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
TLE9263QX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCZ33905CS5EKR2 Tỷ lệ tối đa & tính chất điện
| Chức năng | System Basis Chip (SBC) with 5V/3.3V LDO + HS-CAN + LIN |
| MCU Voltage Regulator Output | 5.0 V or 3.3 V (part-number selectable) |
| Supply Voltage (VBAT) | 5.5 V to 27 V (24 V jump-start tolerant, 40 V load-dump tolerant) |
| CAN Interface Standard | ISO 11898-2 / ISO 11898-5 |
| CAN Data Rate | 40 kb/s to 1.0 Mb/s |
| Embedded CAN 5V Supply | Fully protected, internal LDO for CAN transceiver |
| LIN Standard | LIN 2.1 and J2602-2 compliant |
| Number of LIN Channels | 1 |
| Operating Modes | Normal / Sleep / Stop / LP modes (state-machine controlled) |
| Protection Features | Voltage, current, and temperature protection |
| Diagnostics | Local and bus failure diagnostics on CAN and LIN |
| External PNP Support | Yes - allows external pass transistor to share dissipation |
| Hộp | 32-pin SOIC-EP (EK suffix), Pb-free |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Pb-free - compliant per EK suffix marking |
| AEC-Q100 | Automotive qualified (per device marking suffix) |
| Datasheet Document | 98ASA10556D (per datasheet footer) |
Cấu hình chân MCZ33905CS5EKR2
| Chân 1 | VBAT — Battery supply input (12V automotive bus) |
| Chân 2 | VCC — 5V internal regulator output for MCU |
| Chân 3 | GPIO/WAKE — General-purpose or wake input |
| Chân 4 | EN — Enable input |
| Chân 5 | RST — Reset output to MCU |
| Chân 6 | LIMP — Limp-home output |
| Chân 7 | TXCAN — CAN transmit data |
| Chân 8 | RXCAN — CAN receive data |
| Chân 9 | CANH — CAN high bus line |
| Chân 10 | CANL — CAN low bus line |
| Chân 11 | VCAN — 5V supply output for CAN transceiver |
| Chân 12 | TXLIN — LIN transmit data |
| Chân 13 | RXLIN — LIN receive data |
| Chân 14 | LIN — LIN bus line |
| Chân 15 | INT — Interrupt output |
| Chân 16 | VREG_EXT — External PNP base drive |
| Chân 17 | SENSE — Voltage sense for external PNP mode |
| Chân 18 | GND — Ground reference |
| Chân 19 | NC — Not connected (per datasheet) |
| Chân 20 | NC — Not connected (per datasheet) |
| Chân 21 | NC — Not connected (per datasheet) |
| Chân 22 | NC — Not connected (per datasheet) |
| Chân 23 | NC — Not connected (per datasheet) |
| Chân 24 | NC — Not connected (per datasheet) |
| Chân 25 | NC — Not connected (per datasheet) |
| Chân 26 | NC — Not connected (per datasheet) |
| Chân 27 | NC — Not connected (per datasheet) |
| Chân 28 | NC — Not connected (per datasheet) |
| Chân 29 | NC — Not connected (per datasheet) |
| Chân 30 | NC — Not connected (per datasheet) |
| Chân 31 | NC — Not connected (per datasheet) |
| Chân 32 | EP — Exposed pad - thermal relief, must be soldered to PCB ground plane |
Ứng dụng tiêu biểu
MCZ33905CS5EKR2 phù hợp cho 6 Áp dụngs: Automotive Body Control Module (BCM), Chassis and Powertrain CAN Node, HVAC and Lighting Control Module, Industrial CAN Node (24 V supply), Agricultural and Off-Highway Vehicle ECU, Marine 12 V / 24 V NMEA-2000 Network Node.
Automotive Body Control Module (BCM)
The MCZ33905CS5EKR2 is purpose-built for body-control ECUs that must interface with HS-CAN body bus, a LIN sub-net for mirror/lighting actuators, and the 5 V or 3.3 V MCU supply. The 9 V to 18 V supply tolerance and 24 V jump-start envelope cover all standard 12 V automotive battery profiles. The integrated CAN driver plus embedded protected 5 V supply removes the need for a separate CAN LDO, cutting BOM by ~4 components while keeping the bus fault-diagnostic features that body controllers need to flag short-to-ground or short-to-battery events on the CAN bus.
Được đề xuất
Chassis and Powertrain CAN Node
Chassis modules such as ABS, EPS, and transmission control units demand robust HS-CAN at up to 1 Mb/s, plus the AEC-Q100 qualification that the MCZ33905CS5EKR2 carries. The wide 5.5 V to 27 V supply envelope tolerates load-dump transients and jump-start events seen on a 12 V vehicle during service. Low quiescent current in LP modes supports key-off sleep currents well below 100 uA, helping the chassis ECU meet OEM key-off drain targets without requiring a separate watchdog MCU.
Được đề xuất
HVAC and Lighting Control Module
HVAC and exterior-lighting ECUs combine a high-speed CAN backbone (for BCM communication) with LIN actuators (for HVAC dampers, seat adjusters, and LED drivers). The MCZ33905CS5EKR2's LIN 2.1 / J2602-2 transceiver handles these LIN sub-nets, while the integrated HS-CAN handles the chassis backbone. The exposed-pad SOIC-EP package dissipates the CAN-bus idle and dominant-mode losses, so the ECU board can stay single-sided to meet headlamp/lighting cost targets.
Được đề xuất
Industrial CAN Node (24 V supply)
Many industrial CANopen or DeviceNet installations run on 24 V industrial supplies, and the MCZ33905CS5EKR2's 27 V max VBAT rating comfortably covers this bus. The integrated 5 V MCU LDO removes a power supply IC, and the AEC-Q100 qualification provides extra margin in harsh industrial environments with electrical noise from variable-frequency drives. The extremely low quiescent current keeps battery-backed remote nodes alive for months on a single deep-cycle battery.
Được đề xuất
Agricultural and Off-Highway Vehicle ECU
Agricultural machines, forklifts, and off-road construction equipment face wide temperature swings, dirty supplies, and frequent jump-start surges. The MCZ33905CS5EKR2's 40 V load-dump tolerance and AEC-Q100 grading accept these stresses without additional TVS protection. The integrated HS-CAN plus LIN match the SAE J1939 backbone + body-lighting LIN typical of these vehicles, so a single SBC serves both buses and removes the discrete CAN-and-LIN pair.
Được đề xuất
Marine 12 V / 24 V NMEA-2000 Network Node
NMEA-2000 marine networks use HS-CAN up to 250 kb/s on a 12 V backbone, with optional 24 V supply on larger vessels. The MCZ33905CS5EKR2's tolerance to 24 V continuous operation directly supports larger NMEA-2000 backbones, while its CAN fault diagnostics catch bus-errors from corrosion-prone marine connectors. Low quiescent current in LP modes preserves the marine battery between weekend trips.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCZ33905CS5EKR2 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MCZ33904CS3EKR2 | MCZ33903DS3EKR2 | MC33905CS5EKR2 | TLE9263QX |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Infineon |
| Package | 32-SOIC-EP (EK) | 32-SOIC-EP (EK) - same | 32-SOIC-EP (EK) - same | 32-SOIC-EP (EK) - same | 32-SOIC-EP equivalent - same |
| MCU Voltage Regulator | 5.0 V / 3.3 V selectable | 5.0 V / 3.3 V selectable | 5.0 V / 3.3 V selectable | 5.0 V / 3.3 V selectable | 5.0 V (adjustable 1.5V-5V) |
| CAN Transceivers | 1 HS-CAN (ISO 11898-2/5) | Reduced CAN | 0 (no CAN) | 1 HS-CAN (ISO 11898-2/5) | 1 HS-CAN (ISO 11898-2/5) |
| LIN Transceivers | 1 LIN 2.1 / J2602-2 | 1 LIN | 2 LIN | 1 LIN 2.1 / J2602-2 | 1-2 LIN |
| Supply Voltage (VBAT) | 5.5 V to 27 V | 5.5 V to 27 V | 5.5 V to 27 V | 5.5 V to 27 V | 5.5 V to 27 V (Infineon SBC family) |
| Operating Modes | Normal / Sleep / Stop / LP | Normal / Sleep / Stop / LP | Normal / Sleep / Stop / LP | Normal / Sleep / Stop / LP | Normal / Sleep / Stop / LP with wake map |
| External PNP Support | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- External PNP pass-transistor support (vsTLE9263QX)
- Bus-mix scalability across one footprint (vsMC33972AEW)
- Wide supply envelope with embedded CAN 5V supply (vsDiscrete LDO + separate CAN IC)
Ghi chú thiết kế
The 32-pin SOIC-EP (EK) package dissipates significant heat when the CAN bus is active, since the internal CAN driver and MCU LDO share the same silicon. Estimated: at VBAT = 14 V, MCU load = 200 mA, and bus dominant mode, internal losses reach approximately 0.5 W to 0.8 W. Solder the exposed thermal pad to at least 1 cm2 of continuous top + bottom layer copper per datasheet. For sustained CAN-failed conditions (e.g., bus shorted to ground), the thermal protection circuit will cycle the part into shutdown - layout for that worst case to avoid nuisance resets.
Place the VCAN, VCC, and VBAT decoupling capacitors as close to the IC pins as possible. Use a 100 nF ceramic on VCC and a larger 10 uF tantalum or ceramic on VBAT per the NXP evaluation-board reference layout. Keep CANH/CANL traces short, length-matched, and routed over a continuous ground plane. For the optional external PNP pass transistor, route the SENSE trace as a kelvin connection directly to the VCC pin.
Do not connect the optional external PNP until the internal regulator current budget is clearly below the maximum junction temperature. Many designers add the external PNP 'just in case', then later find the regulator feedback loop is mis-tuned and the internal pass and external PNP fight each other. Also note: the CS5 vs CS3 suffix selects bus topology, not just minor features - placing a CS3 part on a CS5 board removes HS-CAN functionality. Confirm the suffix during incoming inspection.
Add a common-mode choke plus split termination (60 ohm + 60 ohm with 4.7 nF) on the CAN bus when the harness exceeds 1 m, especially in off-road or industrial installations with high-noise drives. The MCZ33905CS5EKR2's integrated HS-CAN transceiver works with common automotive chokes from TDK (ACT45B-101-2P), Murata, or Würth without any software changes. The internal dominant-timeout prevents a single stuck node from blocking the bus.
Thông tin tuân thủ
EK suffix indicates Pb-free per NXP ordering information. AEC-Q100 qualified for automotive; final temperature grade depends on the exact suffix ordering code.
