BQ25601RTWR - 3A I2C Buck Battery Charger | Texas Instruments
MPN: BQ25601RTWR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.65 | $16.50 |
| 100 | $1.32 | $132.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.95 | $950.00 |
Drop-in alternatives for BQ25601RTWR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
BQ25601RTWT
β Drop-Inπ Reference alternative (not in catalog)
BQ25600RTWR
β Drop-Inπ Reference alternative (not in catalog)
BQ25601RTWR-Q1
β Drop-Inπ Reference alternative (not in catalog)
BQ25892RTWT
β Drop-Inπ Reference alternative (not in catalog)
BQ25602RTWR
β Drop-Inπ Reference alternative (not in catalog)
SGM41542YTQ24G/TR
β Drop-Inπ Reference alternative (not in catalog)
BQ25601RTWR Maximum Ratings & Electrical Characteristics
| Number of Series Cells | 1 |
| Charge Current (Max) | 3 A |
| Input Voltage Range | 3.9 V to 14 V |
| Charge Voltage Range | 3.856 V to 4.624 V |
| Cell Chemistry | Li-Ion/Li-Polymer |
| Interface | I2C |
| Power Path Management | NVDC |
| Bootstrap Diode | Integrated |
| Operating Temperature | -40Β°C to +85Β°C |
| Package | WQFN-24 (4x4 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| REACH Status | Compliant |
| AEC-Q100 | Not Qualified |
| Lead-Free | Yes |
BQ25601RTWR Pin Configuration
| Pin 1 | PMID β Power path output |
| Pin 2 | SW β Switch node |
| Pin 3 | BOOT β Bootstrap capacitor |
| Pin 4 | VBUS β Input supply |
| Pin 5 | VAC β Adapter detection |
| Pin 6 | GND β Ground |
| Pin 7 | BAT β Battery connection |
| Pin 8 | SDA β I2C data |
| Pin 9 | SCL β I2C clock |
| Pin 10 | INT β Interrupt output |
| Pin 11 | CE β Charge enable |
| Pin 12 | TS β Temperature sense |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
BQ25601RTWR is suitable for 6 applications: Smartphone Charging, Tablet Power Management, Portable Speakers, Industrial Handheld Devices, Medical Monitoring Devices, IoT Devices.
Smartphone Charging
The BQ25601RTWR provides up to 3A charge current for smartphone batteries, supporting fast charging with high input voltage adapters. Its NVDC power path management ensures the phone operates normally even when the battery is low, and the I2C interface allows dynamic adjustment of charge parameters for optimal charging profiles.
Recommended
Tablet Power Management
Tablets require higher battery capacity and efficient charging. The BQ25601RTWR's 3A charge current and high input voltage support fast charging of large batteries. The integrated power path management allows the tablet to run on adapter power while charging, reducing battery stress and extending battery life.
Recommended
Portable Speakers
Portable speakers benefit from the BQ25601RTWR's compact WQFN package and high charge current. The device's I2C interface allows the speaker's microcontroller to monitor charging status and adjust charge current based on temperature, ensuring safe and efficient charging in a compact form factor.
Recommended
Industrial Handheld Devices
Industrial handheld devices require robust battery charging with wide input voltage range. The BQ25601RTWR supports input voltages up to 14V, making it compatible with various industrial power sources. Its thermal shutdown and overvoltage protection ensure reliable operation in harsh environments.
Recommended
Medical Monitoring Devices
Medical devices require reliable and safe battery charging. The BQ25601RTWR's integrated protections, including overvoltage and overcurrent, ensure safe charging of Li-Ion batteries. The I2C interface allows precise control of charge parameters, meeting stringent medical device requirements.
Recommended
IoT Devices
IoT devices often have limited space and require efficient charging. The BQ25601RTWR's small WQFN package and high efficiency make it ideal for IoT applications. The power path management allows the device to operate while charging, ensuring continuous operation for sensors and communication modules.
Recommended
Recommended Products Summary
Engineering reference data for BQ25601RTWR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BQ25601RTWT | BQ25600RTWR | BQ25892RTWT |
|---|---|---|---|---|
| Package | WQFN-24 (4x4 mm) | WQFN-24 (4x4 mm) | WQFN-24 (4x4 mm) | WQFN-24 (4x4 mm) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Charge Current (Max) | 3 A | 3 A | 2 A | 5 A |
| Input Voltage Range | 3.9 V to 14 V | 3.9 V to 14 V | 3.9 V to 14 V | 3.9 V to 14 V |
| Charge Voltage Range | 3.856 V to 4.624 V | 3.856 V to 4.624 V | 3.856 V to 4.624 V | 3.856 V to 4.624 V |
| Interface | I2C | I2C | I2C | I2C |
| Power Path Management | NVDC | NVDC | NVDC | NVDC |
| Automotive Grade | No | No | No | No |
Key Differentiators
- Integrated bootstrap diode simplifies design (vs BQ25600RTWR)
- Higher charge current than BQ25600 (vs BQ25600RTWR)
- Pin-compatible with BQ25892 for upgrade path (vs BQ25892RTWT)
Design Notes
For optimal thermal performance, place the BQ25601RTWR on a PCB with a solid ground plane and multiple thermal vias under the exposed pad. The WQFN package's thermal pad should be soldered to the ground plane to dissipate heat effectively, especially at high charge currents.
Keep the input capacitor (10uF) and output capacitor (10uF) close to the VBUS and BAT pins respectively. Minimize the loop area between the input capacitor, inductor, and SW pin to reduce EMI and voltage spikes. Use short, wide traces for high-current paths.
Ensure the I2C address is correctly configured and the charge parameters are set before enabling charging. The BQ25601 defaults to a low charge current; program the desired current via I2C. Also, verify the input source can supply the required current to avoid input voltage collapse.
Compliance Information
RoHS and REACH compliant per TI product page. Not AEC-Q100 qualified; use BQ25601RTWR-Q1 for automotive.
