My Inquiry
My Account
NXP Semiconductors MC33774ATP1AE
- Part No.:
- MC33774ATP1AE
- Manufacturer:
- NXP Semiconductors
- Category:
- Battery Management
- Package:
- 64-LQFP Exposed Pad
- Datasheet:
-
MC33774ATP1AE.pdf
- Description:
- MC33774ATP1AE
- Quantity:
- Payment:
- Shipping:
Inventory:859
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC33774ATP1AE from NXP Semiconductors is an automotive-grade 18-cell lithium-ion battery-cell controller IC for high-voltage EV/HEV battery management systems. It delivers ±0.8 mV typical cell voltage measurement accuracy (LFP), supports up to 90 V VBAT, and integrates 18 internal balancing FETs with 360 mA peak current and 0.5 Ω RDS(on). It enables ISO 26262 ASIL D–compliant monitoring in daisy-chained TPL3 isolated communication topologies.
For engineers reviewing the MC33774ATP1AE datasheet, MC33774ATP1AE pinout, MC33774ATP1AE application, or MC33774ATP1AE equivalent, this page provides verified technical context on its 64-pin LQFP package, TPL3 interface timing, passive balancing architecture, and premium-specification differences versus the MC33774ATA1AE variant.
Technical Context
The MC33774ATP1AE implements dual-path analog front-end architecture: primary CTx inputs measure cell voltages with 16-bit resolution and configurable digital filtering, while secondary CBx pins support simultaneous passive balancing across all 18 cells using integrated FETs with per-channel current limiting and thermal interruption logic. Its TPL3 daisy-chain PHY operates at 2 Mbit/s with capacitive or inductive isolation and supports up to 62 nodes per chain.
It features redundant internal temperature sensors, two independent ADC subsystems (primary for cell voltage/auxiliary inputs, secondary for diagnostics), and a dedicated I²C master interface for external EEPROM/security IC control. Operation modes include Active (12 mA), Sleep (60 µA), and Deep Sleep (15 µA), with cyclic wake-up capability and fault-triggered host MCU wake-up via daisy chain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell count support | 4 to 18 series-connected Li-ion cells per device - enables scalable BMS stack design without re-architecting controller layer. |
| VBAT operating range | 9 V to 90 V - supports premium EV battery packs up to 90 V nominal (e.g., 22S LFP or 20S NMC). |
| Cell voltage accuracy | ±0.8 mV typical (LFP, −40 °C to 115 °C) - meets ASIL D voltage monitoring requirements for functional safety compliance. |
| Balance current & RDS(on) | 360 mA peak per channel, 0.5 Ω typical RDS(on) - enables efficient passive balancing with minimal thermal dissipation per FET. |
| Communication interface | TPL3 daisy chain at 2 Mbit/s - provides galvanically isolated, multi-node communication with built-in protocol handling and dynamic addressing. |
| Supply current (Deep Sleep) | 15 µA typical - extends pack monitoring duration during storage or low-power states without compromising safety coverage. |
| Auxiliary inputs | 8 ratiometric/absolute analog inputs (5 V range, ±5 mV accuracy) + 1 dedicated AINA - supports thermistor, voltage, and current sensing for full pack health assessment. |
Pinout & Package
LQFP64 (SOT1510-2), 10 × 10 × 1.4 mm body, 0.50 mm pitch, thermally enhanced exposed pad (GNDFLAG). Pin 65 is grounded exposed pad for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CT0–CT18 | Primary cell terminal inputs | Direct high-impedance connections to cell interconnects; support −3 V to +5 V differential input for bus bar measurement and cell reversal detection. |
| CB0–CB18 | Secondary balancing terminals | Multi-function pins enabling high/low-side switching for each balancing FET; support automatic odd/even sequencing and voltage/temperature-controlled balancing activation. |
| RXTXLP / RXTXHP / CSN_RXTXLN / SCLK_RXTXHN | TPL3 physical layer interface | Differential pair (RXTXLP/RXTXHP) and control lines for bidirectional isolated daisy-chain communication with up to 62-node topology support. |
| GPIO0–GPIO7 | Configurable I/O with analog capability | Each supports ratiometric/absolute auxiliary measurement (AIN0–AIN7), GPIO function, I²C signaling (GPIO4/GPIO5), or wake-up/alarm input (GPIO0/GPIO1). |
| VAUX | Regulated 3.3 V output | Stable 3.19–3.41 V supply (5 mA drive) for external sensors - eliminates need for discrete LDO in sensor interface stage. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 26262 ASIL D support | End-to-end diagnostic coverage for cell voltage and temperature measurements - satisfies FMEDA requirements for automotive safety goals. |
| Configurable balancing strategy | Voltage-, temperature-, and timer-controlled balancing with individual thresholds and global timeout - prevents over-discharge and thermal runaway during maintenance cycles. |
| Integrated emergency discharge | Automatic full-pack discharge path activation on critical fault - enables safe shutdown without external circuitry. |
| Redundant internal temperature sensing | Two independent on-die sensors with ±3 °C error (−40 °C to 150 °C) - provides cross-checked thermal monitoring for ASIL D compliance. |
| Cyclic wake-up in Sleep mode | Programmable interval monitoring of cell voltages and balancing status without host intervention - maintains safety state during long-term idle. |
Applications
| EV Battery Management System | HEV Energy Storage Module |
|---|---|
|
Use Scenario: Monitoring and balancing of 18S LiFePO₄ traction battery packs in battery electric vehicles. IC Role / Device Role / Timing Role: Primary cell controller performing synchronized voltage acquisition, thermal validation, and passive balancing under ASIL D safety architecture. Use Value: Enables precise SoC estimation and extended cycle life through ±0.8 mV measurement accuracy and constant-current balancing compensation. |
Use Scenario: High-reliability cell supervision in 14–18S hybrid vehicle starter-battery and regenerative braking energy recovery modules. IC Role / Device Role / Timing Role: Safety-critical monitoring node in distributed BMS, communicating via TPL3 daisy chain to central MCU with fault propagation capability. Use Value: Reduces system-level wiring complexity and isolation component count by integrating galvanic isolation-ready communication and diagnostics. |
| Industrial ESS Rack Controller | UPS Battery Pack Monitor |
|
Use Scenario: Centralized cell supervision in 48 V–90 V stationary energy storage systems for grid-tied solar installations. IC Role / Device Role / Timing Role: High-accuracy measurement engine supporting IEEE 1626 compliance with redundant temperature sensing and configurable alarm outputs. Use Value: Delivers long-term drift stability (<±1.2 mV end-of-life) required for 10+ year ESS deployments without recalibration. |
Use Scenario: Real-time cell health tracking in mission-critical uninterruptible power supplies for data centers and telecom infrastructure. IC Role / Device Role / Timing Role: Low-power monitoring agent operating in Deep Sleep (15 µA) with cyclic wake-up to verify pack integrity during standby. Use Value: Extends backup runtime by minimizing quiescent current while maintaining ASIL D–level fault detection coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery-cell controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33774ATA1AE | Lower VBAT max (81 V), ±1.3 mV NMC accuracy (BOL), same pinout and TPL interface | Suitable for 16S–18S NMC packs ≤ 81 V; lacks premium voltage headroom and tightest accuracy bin | Select when cost sensitivity outweighs need for 90 V operation or <±1 mV LFP accuracy. |
| BQ79616-Q1 | TI 16-channel AFE with SPI-only interface, no integrated balancing FETs, requires external MOSFET drivers | Requires additional external components for balancing; supports higher channel density but not direct drop-in replacement | Choose for designs prioritizing SPI simplicity and external balancing flexibility over integrated FET consolidation. |
Compared with MC33774ATA1AE and BQ79616-Q1, the MC33774ATP1AE uniquely combines 90 V operation, integrated 360 mA balancing FETs, and TPL3 isolation in a single 64-pin package - reducing bill-of-materials count and PCB area while meeting stringent automotive ASIL D requirements.
Availability
MC33774ATP1AE is available at Aetrix Electronics and suitable for electric vehicle battery management systems, hybrid electric vehicle energy recovery modules, and industrial energy storage systems requiring stable component supply and long-term lifecycle support.
Supply support for MC33774ATP1AE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in functional safety and ASIL-certified silicon.
The MC33774A product line was designed specifically for high-reliability battery monitoring in ISO 26262–compliant automotive and industrial energy storage systems, emphasizing integrated safety, precision measurement, and robust isolated communication.
FAQ
What is the maximum battery voltage supported by the MC33774ATP1AE?
The MC33774ATP1AE supports a VBAT operating range up to 90 V, with an overvoltage threshold of 90–93 V. This exceeds the 81 V limit of the MC33774ATA1AE variant and enables use in higher-voltage 20S–22S lithium iron phosphate (LFP) battery configurations commonly deployed in modern EV platforms. The MC33774ATP1AE maintains ±0.8 mV typical cell voltage accuracy even at this extended voltage range.
Does the MC33774ATP1AE include integrated balancing FETs, and what are their key ratings?
Yes, the MC33774ATP1AE integrates 18 internal balancing field-effect transistors (FETs), one per cell channel. Each FET delivers up to 360 mA peak balancing current with a typical RDS(on) of 0.5 Ω. The device supports simultaneous passive balancing across all channels with automatic odd/even sequencing, voltage- and temperature-controlled activation, and configurable PWM duty cycling - all managed internally without host MCU intervention.
How does the TPL3 daisy-chain interface of the MC33774ATP1AE differ from standard SPI communication?
The MC33774ATP1AE's TPL3 interface provides galvanically isolated daisy-chain communication using differential signaling (RXTXLP/RXTXHP), supporting up to 62 nodes per chain at 2 Mbit/s. Unlike SPI, which requires separate chip select lines and isolation per device, TPL3 uses capacitive or inductive coupling between adjacent nodes - eliminating optocouplers or digital isolators and reducing BOM cost and board space. The MC33774ATP1AE retains SPI capability (4 Mbit/s) as a secondary option, but TPL3 is its defining premium feature.
What safety certifications apply to the MC33774ATP1AE?
The MC33774ATP1AE is AEC-Q100 Grade 1 qualified (−40 °C to +125 °C ambient) and supports ISO 26262 ASIL D compliance for cell voltage and temperature measurement functions. Its architecture includes redundant internal temperature sensors, configurable diagnostic monitors, and end-to-end data integrity checks across the TPL3 interface - enabling system-level FMEDA documentation required for automotive functional safety certification. The MC33774ATP1AE itself is not certified standalone but is architected to enable ASIL D decomposition in compliant BMS designs.
Can the MC33774ATP1AE operate in ultra-low-power modes while maintaining safety monitoring?
Yes, the MC33774ATP1AE supports Deep Sleep mode with only 15 µA typical supply current, while retaining cyclic wake-up capability to autonomously monitor cell voltages, temperatures, and balancing status. During wake cycles, it performs full-precision measurements and evaluates fault conditions - then returns to Deep Sleep without host MCU involvement. This ensures continuous safety coverage during vehicle off-state or ESS standby, extending battery shelf life without compromising ASIL D readiness.
MC33774ATP1AE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 64-LQFP Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Multi-Function Controller
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 4 ~ 18
- Fault Protection:
- Over Temperature
- Interface:
- I2C, SPI
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (10x10)
MC33774ATP1AE FAQ
1.How can I place an order for MC33774ATP1AE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33774ATP1AE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC33774ATP1AE reliable?
The price and inventory of MC33774ATP1AE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33774ATP1AE is usually 5 days.
3.What payment methods are accepted for MC33774ATP1AE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33774ATP1AE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33774ATP1AE?
MC33774ATP1AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33774ATP1AE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC33774ATP1AE?
For technical support, including MC33774ATP1AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33774ATP1AE requirements.
6.How does Aetrix verify that MC33774ATP1AE is sourced from the original manufacturer or authorized distributors?
All MC33774ATP1AE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC33774ATP1AE meets industry standards.
7.What is the process for return or replacement of MC33774ATP1AE?
All MC33774ATP1AE units undergo pre-shipment inspection (PSI). If there is an issue with MC33774ATP1AE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC33774ATP1AE part is unused and in its original packaging.
Return procedure for MC33774ATP1AE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC33774ATP1AE Tags
-
BQ29700DSER
Texas Instruments
-
S-8241ABKMC-GBKT2G
ABLIC Inc.
-
S-8241ABPMC-GBPT2G
ABLIC Inc.
-
BQ27427YZFR
Texas Instruments
-
BQ27426YZFR
Texas Instruments
-
STC3117IJT
STMicroelectronics
-
STC3115IJT
STMicroelectronics
-
BQ76925RGER
Texas Instruments
-
NPM1100-QDAA-R
Nordic Semiconductor ASA
-
BQ27441DRZR-G1A
Texas Instruments
-
STC3115AIQT
STMicroelectronics
-
S-8252AAL-M6T1U
ABLIC Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
