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Texas Instruments BQ76200PWR
- Part No.:
- BQ76200PWR
- Manufacturer:
- Texas Instruments
- Category:
- Battery Management
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
BQ76200PWR.pdf
- Description:
- IC BATT PROT MULTI 3-16C 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,990
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Product details
Overview
BQ76200PWR from Texas Instruments is a high-voltage, low-power, high-side N-channel MOSFET driver IC for battery pack protection systems. It provides independent CHG and DSG gate drive outputs (up to 14 V above BAT), integrated charge pump (VDDCP ≥9 V), 40 µA normal-mode current, and 100-V absolute maximum voltage rating. It enables continuous host-MCU communication during FET off-states in eBike and ESS applications.
For engineers reviewing the BQ76200PWR datasheet, BQ76200PWR pinout, BQ76200PWR application, or BQ76200PWR equivalent, key selection considerations include high-side NMOS driver architecture, scalable 470 nF charge pump capacitor support, independent digital enable control (CHG_EN/DSG_EN/PCHG_EN), PACK+ voltage monitoring via PMON_EN, and compatibility with bq76920/930/940 AFEs.
Technical Context
The BQ76200PWR implements a high-side protection topology using an internal charge pump to generate gate drive voltage above BAT, eliminating ground disconnection and preserving system-level communication integrity. Its functional modes-NORMAL (40 µA) and SHUTDOWN (<10 µA)-are controlled by logic-level enable inputs with internal pull-down resistors (0.6–4 MΩ).
It supports three independent FET control paths: CHG (N-FET, RON = 1.1 kΩ), DSG (N-FET, RON = 3.5 kΩ), and PCHG (P-FET, VON = 5–14 V), plus analog PACK+ sensing via PMON_EN–controlled internal switch (RON = 1.5–3.5 kΩ) routed to PACKDIV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery input range | 8 V to 75 V - supports 12-V to 48-V battery packs and PbA replacement systems |
| Charge pump output (VDDCP) | 9–14 V above BAT - enables high-side N-FET turn-on without external boost supply |
| Normal mode current | 40–60 µA - ultra-low quiescent power for always-on battery monitoring |
| CHG/DSG propagation delay | 0.5 µs - ensures fast fault response when paired with bq769x0 AFEs |
| VDDCP capacitor requirement | 470 nF minimum (BAT–VDDCP) - scales to >2 µF for parallel FET configurations |
| Operating temperature | –40°C to +85°C - qualified for industrial and transportation environments |
| ESD rating (HBM) | ±2000 V - robust handling in automated assembly and field service |
Pinout & Package
Package: TSSOP-16 (5.00 × 4.40 × 1.00 mm), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BAT | Power input | Top of battery stack reference; connects to VDDCP capacitor and charge pump return |
| CHG | Output driver | High-side N-FET gate drive (14 V max above BAT); drives charge path FET |
| CHG_EN | Digital input | Active-high enable for CHG output; internally pulled down (0.6–4 MΩ) |
| CP_EN | Digital input | Charge pump enable; OR'ed with CHG_EN/DSG_EN for automatic pump activation |
| DSG | Output driver | High-side N-FET gate drive (14 V max above BAT); drives discharge path FET |
| DSG_EN | Digital input | Active-high enable for DSG output; internally pulled down (0.6–4 MΩ) |
| PCHG | Output driver | P-FET gate drive (5–14 V); enables precharge of deeply depleted packs |
| PCHG_EN | Digital input | Active-high enable for PCHG output; no charge pump dependency |
| PACKDIV | Analog output | Scaled PACK+ voltage node; connected to MCU ADC via external resistor divider |
| PMON_EN | Digital input | Enables internal switch between PACK and PACKDIV; on-resistance 1.5–3.5 kΩ |
| VDDCP | Charge pump output | Unloaded charge pump rail; requires 470 nF capacitor to BAT; not for external loading |
| VSS | Ground reference | System ground return for all internal circuitry and enable inputs |
Key Features
| Feature | Design Value |
|---|---|
| High-side N-FET driver architecture | Maintains shared ground between battery pack and host MCU at all times - critical for fault diagnostics and charger detection |
| Independent CHG/DSG enable control | Allows asymmetric protection: e.g., disable charging while permitting discharge during overvoltage, or vice versa |
| Scalable charge pump capacitor | Supports up to ~90 nF total gate capacitance using >2 µF VDDCP capacitor - accommodates multi-FET parallel configurations |
| Integrated PACK+ monitor switch | Eliminates need for external high-voltage level-shifting circuitry; enables MCU ADC measurement of up to 75 V PACK+ via resistor divider |
| Precharge P-FET driver (PCHG) | Provides safe, current-limited charging path for deeply depleted cells - avoids inrush damage and enables recovery before main CHG activation |
Applications
| eBikes & eScooters | Energy Storage Systems (ESS) |
|---|---|
Use Scenario: High-voltage (36–48 V) lithium-ion battery pack with hardware-based overcurrent and short-circuit protection. IC Role / Device Role / Timing Role: High-side N-FET driver controlling CHG/DSG paths; enables real-time communication with BMS MCU even during FET-off safety lockout. Use Value: Prevents loss of telemetry during fault events - allows accurate SOC estimation and safe restart after transient faults. |
Use Scenario: 48 V DC backup system for telecom base stations requiring fail-safe disconnect and precharge sequencing. IC Role / Device Role / Timing Role: Dual-path gate driver (CHG + DSG) with independent enables and PCHG for controlled battery commissioning. Use Value: Enables soft-start precharge before main contactor closure - eliminates arcing and extends relay life in high-energy systems. |
| Portable Medical Devices | Lead-Acid Replacement Batteries |
Use Scenario: Battery-powered infusion pump with UL 60601-1 compliance requiring uninterrupted communication during protection events. IC Role / Device Role / Timing Role: High-side protection driver ensuring continuous ground reference between battery pack and host controller across all states. Use Value: Guarantees diagnostic data availability during thermal or overvoltage shutdown - supports mandatory safety logging requirements. |
Use Scenario: Smart 12–48 V lead-acid replacement battery with integrated protection and voltage telemetry. IC Role / Device Role / Timing Role: PACK+ monitor interface (via PMON_EN → PACKDIV) and dual-path switching for legacy charger compatibility. Use Value: Delivers precise PACK voltage reporting to host without external HV op-amps - reduces BOM cost and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side battery protection driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP62551DJ-LF-Z | Single-channel high-side driver (CHG only); no DSG or PCHG outputs; 60-V max rating; no integrated charge pump - requires external boost | Limited to charge-only protection topologies; unsuitable for bidirectional (CHG+DSG) or precharge-capable designs | Select only if system uses separate discharge control or low-voltage (<60 V) single-path architecture |
| TPS2811D | Non-inverting dual high-side driver; no charge pump; 18-V max supply; logic-level inputs only - incompatible with 75-V battery stacks | Requires external HV gate driver stage; lacks PACK monitoring, precharge, and ultra-low IQ operation | Use only in low-voltage (<18 V), low-power auxiliary circuits - not a functional substitute for BQ76200PWR in battery pack front-end roles |
Compared with MP62551DJ-LF-Z and TPS2811D, the BQ76200PWR uniquely integrates dual high-side N-FET drivers, P-FET precharge, charge pump, and PACK+ monitoring in one 100-V-rated device - enabling complete, compact, and communication-resilient battery protection without external HV components.
Availability
BQ76200PWR is available at Aetrix Electronics and suitable for eBikes, energy storage systems, and portable medical devices requiring stable component supply, long-term lifecycle support, and automotive-grade reliability under extended temperature operation.
Supply support for BQ76200PWR 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The BQ76200PWR belongs to TI's battery front-end driver product line, designed specifically to enable high-side protection architectures that preserve system communication integrity and simplify high-voltage battery pack design for transportation and grid-scale storage.
FAQ
What is the primary function of the BQ76200PWR in a battery management system?
The BQ76200PWR serves as a high-side N-channel MOSFET driver IC that controls charge (CHG), discharge (DSG), and precharge (PCHG) FETs in lithium-ion and lead-acid battery packs. Its integrated charge pump enables gate drive voltages up to 14 V above BAT, allowing reliable high-side switching without ground interruption - ensuring continuous communication between the battery pack and host MCU during all operating and fault states. This makes the BQ76200PWR essential for safety-critical applications like eBikes and ESS where telemetry must persist during protection events.
How does the BQ76200PWR support PACK+ voltage monitoring?
The BQ76200PWR supports PACK+ voltage monitoring via its PMON_EN input and PACKDIV output. When PMON_EN is asserted high, an internal switch (RON = 1.5–3.5 kΩ) connects the PACK pin to PACKDIV. An external resistor divider then scales the full PACK+ voltage (up to 75 V) to a safe range for connection to a microcontroller's ADC input. This eliminates the need for external high-voltage level-shifting circuitry, reducing BOM count and PCB space while maintaining accuracy and isolation integrity in the BQ76200PWR-based design.
What is the minimum required capacitor value for the VDDCP pin on the BQ76200PWR?
The BQ76200PWR requires a minimum 470 nF capacitor connected between the VDDCP and BAT pins to ensure proper charge pump operation. This value is specified in the Electrical Characteristics table and validated for up to ~30 nF of total FET gate capacitance. For systems using multiple parallel FETs (e.g., high-current eBike packs), the VDDCP capacitor may be scaled upward - for example, a 2.1 µF capacitor supports ~90 nF gate load - though larger values increase tCPON (charge pump startup time). Disconnection or damage to this capacitor risks residual gate voltage and FET damage, so robust placement and solder joint integrity are critical in the BQ76200PWR layout.
Can the BQ76200PWR be used with the bq76940 battery monitor?
Yes, the BQ76200PWR is explicitly designed to work directly with the bq76940, as well as the bq76930 and bq76920 battery monitors. Its digital enable inputs (CHG_EN, DSG_EN, PCHG_EN, CP_EN, PMON_EN) accept logic-level signals from the bq76940's FET driver outputs or GPIOs, enabling seamless hardware-based protection coordination. The BQ76200PWR's low 40 µA normal-mode current and fast propagation delays (0.5 µs) complement the bq76940's real-time cell monitoring, making the combination ideal for high-reliability, low-power battery packs in eMobility and industrial applications.
What are the key differences between NORMAL and SHUTDOWN modes on the BQ76200PWR?
In NORMAL mode (CHG_EN = Hi, DSG_EN = Hi, CP_EN = Hi), the BQ76200PWR operates at 40–60 µA, powers the charge pump, and drives CHG/DSG outputs to VBAT + VVDDCP (up to 14 V above BAT). In SHUTDOWN mode (all enables = Lo), current drops to <10 µA, the charge pump disables, and all outputs (CHG, DSG, PCHG, PACKDIV) are actively driven low. The transition between modes is controlled solely by enable pin states - no external reset or command sequence is needed. This deterministic, pin-driven behavior simplifies firmware integration and ensures predictable low-power operation in the BQ76200PWR-based system.
BQ76200PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Battery Protection
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 3 ~ 16
- Fault Protection:
- -
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
BQ76200PWR FAQ
1.How can I place an order for BQ76200PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ76200PWR 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 BQ76200PWR reliable?
The price and inventory of BQ76200PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ76200PWR is usually 5 days.
3.What payment methods are accepted for BQ76200PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ76200PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ76200PWR?
BQ76200PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ76200PWR 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 BQ76200PWR?
For technical support, including BQ76200PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ76200PWR requirements.
6.How does Aetrix verify that BQ76200PWR is sourced from the original manufacturer or authorized distributors?
All BQ76200PWR 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 BQ76200PWR meets industry standards.
7.What is the process for return or replacement of BQ76200PWR?
All BQ76200PWR units undergo pre-shipment inspection (PSI). If there is an issue with BQ76200PWR, 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 BQ76200PWR part is unused and in its original packaging.
Return procedure for BQ76200PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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