BQ79616PAPRQ1 - 16S ASIL-D Automotive Battery Monitor | TI
MPN: BQ79616PAPRQ1 ✓ Hoạt độngBQ79616PAPRQ1 Tóm tắt
A battery monitor IC is a specialized integrated circuit that measures the voltage of individual cells in a series lithium-ion stack. It is the core sensing element of a battery management system (BMS), which sits within the broader power-management IC hierarchy. BMS devices ensure safe and efficient battery-pack operation in electric vehicles, hybrid vehicles, and grid energy-storage systems by providing data for state-of-charge and state-of-health estimation and by triggering protective actions.
Key differentiating features include ASIL-D functional-safety compliance for ISO 26262-oriented designs, AEC-Q100 Grade 1 qualification, and integrated overvoltage, undervoltage, and overtemperature protection plus passive cell balancing. Pin-to-pin compatibility with the BQ79614-Q1 (14S) and BQ79612-Q1 (12S) variants enables hardware and software reuse across platforms with different cell counts. The integrated front-end supports simple low-voltage differential RC filters on cell input channels, reducing BOM cost versus designs that require high-voltage rated external components.
Technically, the BQ79616PAPRQ1 uses a precision ADC architecture to measure all 16 cell voltages in less than 200 microseconds, enabling real-time protection decisions during high-rate charge and discharge events. A daisy-chain communication interface supports stacking multiple devices for higher total cell counts in large packs, and the 64-pin HTQFP package exposes a thermal pad that must be soldered with adequate thermal vias to keep junction temperature within limits during continuous balancing.
Typical applications include automotive HEV/EV battery management for 16S modules, ASIL-level energy storage, and lithium-ion backup power stacks. In each case the fast total measurement time and high accuracy support real-time monitoring under demanding automotive conditions, and the shared 64-HTQFP footprint with the 14S and 12S family members enables one PCB to ship three product variants.
A key design consideration is the differential RC filter sizing on cell inputs: filter values directly affect measurement settling time and accuracy, so follow the datasheet recommendations and place the device with adequate thermal vias under the HTQFP thermal pad.
This page synthesizes verified distributor pricing, drop-in 64-HTQFP alternatives, and practical design notes not found in the manufacturer datasheet, with all data freshness stated as of 2026-10-07.
Bộ thay thế dễ dàng lắp đặt cho BQ79616PAPRQ1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với BQ79616PAPRQ1 (cùng hình factor và footprint) — khác nhau ở Package, Battery Chemistry, Communication Interface, Function, Operating Temperature Range.
BQ79614PAPRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
BQ79612PAPRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
BQ79656PAPRQ1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →BQ79716B-Q1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →L9963
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →BQ79616PAPRQ1 Thông số kỹ thuật
| Product Type | Battery Multi-Function Controller / Monitor / Balancer / Protector |
| Number of Series Cells Supported | 16S |
| Battery Chemistry | Lithium Ion (Li-ion / LiFePO4 / LTO) |
| Full-Stack Measurement Time | < 200 us for 16 cells |
| Functional Safety Compliance | ASIL-D (ISO 26262) |
| AEC-Q100 Grade | Grade 1 |
| AEC-Q100 ESD (HBM) | Level 2 |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C ambient |
| Hộp | 64-HTQFP (PAP) 10x10 mm |
| Kiểu lắp đặt | Surface Mount |
| Integrated Cell Balancing | Yes (passive balancing) |
| Integrated Protection | OV / UV / OT hardware protector |
| Communication Interface | Daisy-chain UART |
| Trạng thái RoHS | Compliant |
| Số chân | 64 |
Cấu hình chân BQ79616PAPRQ1
| Chân 1 | VC0 — Cell 0 voltage sense input (lowest cell) |
| Chân 2 | VC1 — Cell 1 voltage sense input |
| Chân 3 | VC2 — Cell 2 voltage sense input |
| Chân 4 | VC3 — Cell 3 voltage sense input |
| Chân 5 | VC4 — Cell 4 voltage sense input |
| Chân 6 | VC5 — Cell 5 voltage sense input |
| Chân 7 | VC6 — Cell 6 voltage sense input |
| Chân 8 | VC7 — Cell 7 voltage sense input |
| Chân 9 | VC8 — Cell 8 voltage sense input |
| Chân 10 | VC9 — Cell 9 voltage sense input |
| Chân 11 | VC10 — Cell 10 voltage sense input |
| Chân 12 | VC11 — Cell 11 voltage sense input |
| Chân 13 | VC12 — Cell 12 voltage sense input |
| Chân 14 | VC13 — Cell 13 voltage sense input |
| Chân 15 | VC14 — Cell 14 voltage sense input |
| Chân 16 | VC15 — Cell 15 voltage sense input (top cell) |
| Chân 17 | VC16 — Cell 16 / pack-top sense input |
| Chân 18 | BAT — Battery supply input |
| Chân 19 | VIO — Digital I/O supply |
| Chân 20 | VDD — Internal analog supply |
| Chân 21 | GND — Ground |
| Chân 22 | GPIO1 — General-purpose I/O 1 |
| Chân 23 | GPIO2 — General-purpose I/O 2 |
| Chân 24 | GPIO3 — General-purpose I/O 3 |
| Chân 25 | GPIO4 — General-purpose I/O 4 |
| Chân 26 | NFAULT — Fault indicator output (active low) |
| Chân 27 | PWM — PWM output for balancing control |
| Chân 28 | TS1 — Temperature sense input 1 |
| Chân 29 | TS2 — Temperature sense input 2 |
| Chân 30 | TS3 — Temperature sense input 3 |
| Chân 31 | TS4 — Temperature sense input 4 |
| Chân 32 | TS5 — Temperature sense input 5 |
| Chân 33 | TS6 — Temperature sense input 6 |
| Chân 34 | TSREF — Temperature sense reference |
| Chân 35 | RX_HI — Daisy-chain receive high |
| Chân 36 | RX_LO — Daisy-chain receive low |
| Chân 37 | TX_HI — Daisy-chain transmit high |
| Chân 38 | TX_LO — Daisy-chain transmit low |
| Chân 39 | COM_HI — Daisy-chain communication high |
| Chân 40 | COM_LO — Daisy-chain communication low |
| Chân 41 | WAKE — Wake-up input |
| Chân 42 | SHUTDN — Shutdown input |
| Chân 43 | RST — Reset input |
| Chân 44 | TEST — Test mode (factory only) |
| Chân 45 | AVSS — Analog ground |
| Chân 46 | REFP — Internal reference positive |
| Chân 47 | REFN — Internal reference negative |
| Chân 48 | ADC_IN — Auxiliary ADC input |
| Chân 49 | CB1 — Cell balance driver 1 |
| Chân 50 | CB2 — Cell balance driver 2 |
| Chân 51 | CB3 — Cell balance driver 3 |
| Chân 52 | CB4 — Cell balance driver 4 |
| Chân 53 | CB5 — Cell balance driver 5 |
| Chân 54 | CB6 — Cell balance driver 6 |
| Chân 55 | CB7 — Cell balance driver 7 |
| Chân 56 | CB8 — Cell balance driver 8 |
| Chân 57 | CB9 — Cell balance driver 9 |
| Chân 58 | CB10 — Cell balance driver 10 |
| Chân 59 | CB11 — Cell balance driver 11 |
| Chân 60 | CB12 — Cell balance driver 12 |
| Chân 61 | CB13 — Cell balance driver 13 |
| Chân 62 | CB14 — Cell balance driver 14 |
| Chân 63 | CB15 — Cell balance driver 15 |
| Chân 64 | CB16 — Cell balance driver 16 |
Ứng dụng tiêu biểu
BQ79616PAPRQ1 phù hợp cho 6 Áp dụngs: Automotive HEV/EV 16S Battery Management, Grid-Scale Energy Storage Systems (ESS), Industrial Backup Power (UPS) Battery Monitoring, E-Bike and Light Electric Vehicle 16S Packs, Battery Formation and Test Equipment, Robotics and AGV Battery Packs.
Automotive HEV/EV 16S Battery Management
The BQ79616PAPRQ1 is the core sensing element of a 16S HEV/EV battery management module, where its <200 us full-stack measurement time supports real-time OV/UV detection during high-rate charge and discharge pulses. ASIL-D compliance and AEC-Q100 Grade 1 qualification match ISO 26262-oriented traction-pack designs, and the integrated passive balancer removes the need for an external balancing IC. Placed adjacent to the cell-tap harness with differential RC filters sized per datasheet guidance, the device feeds cell voltages to the host MCU through the daisy-chain UART, simplifying HV isolation versus parallel-per-cell architectures.
Được đề xuất
Grid-Scale Energy Storage Systems (ESS)
For stationary lithium-ion ESS racks, the BQ79616PAPRQ1's 16S channel count fits common LFP rack voltages around 48-60 V nominal, and its ASIL-D compliance is increasingly required by utility-grade safety standards. The <200 us full-stack measurement time supports fast disconnect on cell-level faults, while the daisy-chain interface allows stacking of multiple BQ79616PAPRQ1 devices for high-voltage packs. Thermal vias under the HTQFP pad are critical because continuous balancing at high SOC can dissipate several watts per device.
Được đề xuất
Industrial Backup Power (UPS) Battery Monitoring
In telecom and datacenter UPS strings built from 16S lithium-ion stacks, the BQ79616PAPRQ1 provides ASIL-D-grade cell monitoring with hardware OV/UV/OT protection that can directly drive contactors without host intervention. The integrated protector function shortens the fault-to-disconnect time, which is essential for backup systems where a single cell overvoltage can cascade into thermal runaway. Use the BQ79600-Q1 to bridge the daisy-chain UART to the rack controller's isolated SPI.
Được đề xuất
E-Bike and Light Electric Vehicle 16S Packs
Compact 16S e-bike and light-EV packs benefit from the BQ79616PAPRQ1's small 64-HTQFP 10x10 mm footprint and integrated passive balancing, which removes the space-consuming discrete balancing resistors. AEC-Q100 Grade 1 qualification, while not required for non-automotive, gives extra margin against vibration and thermal stress on e-bike duty cycles. Pair with a host MCU running the BQ79616-Q1 reference software for rapid product development.
Được đề xuất
Battery Formation and Test Equipment
Cell-formation racks and end-of-line battery testers use the BQ79616PAPRQ1 to acquire high-accuracy voltage data on 16S packs under controlled charge/discharge cycles. The <200 us full-stack measurement time supports high-throughput formation lines, and ASIL-D compliance allows the same hardware to be reused in automotive-grade qualification lines. Daisy-chain multiple BQ79616PAPRQ1 devices to monitor multi-pack fixtures without extra isolators.
Được đề xuất
Robotics and AGV Battery Packs
Autonomous mobile robots and automated guided vehicles typically use 48-60 V 16S lithium packs where the BQ79616PAPRQ1's hardware protector ensures immediate disconnect on cell faults without depending on host software, a critical safety feature for human-collaborative environments. The 64-HTQFP package's small footprint suits space-constrained robot battery bays, and daisy-chain enables packs to be monitored in parallel. Pair with the BQ79600-Q1 bridge for isolated communication to the robot's central controller.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho BQ79616PAPRQ1 — 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 | BQ79614PAPRQ1 | BQ79612PAPRQ1 | BQ79656PAPRQ1 | BQ79716B-Q1 | L9963 |
|---|---|---|---|---|---|---|
| Package | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP (PAP) 10x10 mm | 64-HTQFP-equivalent (verify footprint) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics |
| Supported Series Cells | 16S | 14S | 12S | Higher cell count - verify | Verify family datasheet | 14S |
| Functional Safety | ASIL-D | ASIL-D | ASIL-D | ASIL-D | ASIL-D | ASIL-D |
| AEC-Q100 Grade | Grade 1 (-40 C to +125 C) | Grade 1 | Grade 1 | Grade 1 | Grade 1 | Grade 1 |
| Integrated Cell Balancing | Yes (passive) | Yes (passive) | Yes (passive) | Yes (passive) | Yes | Yes (passive) |
| Communication Interface | Daisy-chain UART | Daisy-chain UART | Daisy-chain UART | Daisy-chain UART | Daisy-chain UART | Isolated SPI (verify) |
Bảo phân biệt quan trọng
- Highest cell-count pin-compatible member of the BQ7961x-Q1 family in the same 64-HTQFP (PAP) footprint (vsBQ79614PAPRQ1 / BQ79612PAPRQ1)
- Integrated hardware protector plus passive balancer in a single IC (vsBQ76952PFBR (non-automotive monitor))
- True cross-brand 64-HTQFP 14S ASIL-D monitor with same package footprint family (vsL9963 (STMicroelectronics))
Ghi chú thiết kế
The 64-HTQFP (PAP) package relies on the exposed thermal pad for heat removal. Estimated: at continuous balancing current of 100 mA per cell across all 16 cells, internal dissipation can reach 1-2 W; provide a thermal pad land area of at least 100 mm^2 with a 4x4 thermal-via array (0.3 mm drill, 1 mm pitch) tied to an internal ground plane to keep junction below 125 C at 85 C ambient.
Per TI, place differential RC low-pass filters on each VCx cell input pin (typical 100 ohm + 100 nF). Keep filter components within 5 mm of the IC pins and route the differential traces as a coupled pair to reject common-mode noise from the HV traction pack. The HV-side resistor divider values are family-specific and must be derived against the BQ79616-Q1 datasheet, not guessed.
Do not skip the daisy-chain isolation barrier between BQ79616PAPRQ1 and the low-voltage host MCU: TI recommends the BQ79600-Q1 (or equivalent) UART-to-isolated-SPI bridge to withstand the HV transient of the traction pack. Tie the WAKE/SHUTDN lines per the datasheet power-up sequence to avoid the device latching in an undefined state on cold-crank events.
Thông tin tuân thủ
AEC-Q100 Grade 1 qualified per TI product page. ASIL-D functional safety compliance per ISO 26262. Q1 suffix denotes automotive-grade part. Halogen-free status not explicitly listed in the provided data; mark as unknown until verified against the latest TI material declaration.
