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BQ25504RGTR
+NomenclatureIC ENERGY HARV CTRLR BATT 16QFN
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FabricantTexas Instruments
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Pièce fabricant #BQ25504RGTR
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Package VQFN-16
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En stock2314
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Applications | Energy Harvesting |
| Supply Current | 330nA |
| Voltage - Supply | 2.5V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Présentation
Description
Key features include a wide input voltage range (330 mV to 5.5 V), which allows it to handle various energy sources. The BQ25504RGTR incorporates a maximum power point tracking (MPPT) algorithm to optimize energy harvesting efficiency. Additionally, it includes a cold start feature to initiate energy harvesting at very low input voltages.
The chip also offers programmable input voltage set points, an integrated buck/boost DC-DC converter, and over-voltage protection, making it versatile and robust for different energy harvesting scenarios. Its compact size and high integration level make it ideal for space-constrained applications.
Equivalent
1. BQ25505 - Another variant from Texas Instruments, with similar functionalities.
2. LTC3106 - From Analog Devices, suitable for low-power energy harvesting.
3. SPV1050 - From STMicroelectronics, supports multiple energy sources.
4. MAX17710 - From Maxim Integrated, designed for energy harvesting applications.
These alternatives offer similar functionalities with slight variations in features and specifications.
Features
1. Ultra-Low Power Start-Up: Operates with input voltages as low as 330 mV, allowing it to start up with low energy sources such as solar panels, thermoelectric generators, or piezoelectric devices.
2. High Efficiency: Boost converter with high conversion efficiency over a wide range of power inputs, from microwatts to milliwatts.
3. MPPT (Maximum Power Point Tracking): Implements MPPT to optimize energy harvesting from varying power sources, enhancing the efficiency of energy capture.
4. Battery Management: Provides integrated battery management features, including battery under-voltage protection and over-voltage protection, suitable for rechargeable batteries.
5. Programmable Settings: Offers customizable settings for input voltage, output voltage, and battery charging thresholds to meet specific application requirements.
6. Compact Package: Available in a small 16-pin QFN package, facilitating integration into space-constrained designs.
Overall, the BQ25504RGTR is ideal for applications requiring efficient energy harvesting and power management, such as wireless sensor networks and IoT devices.
Pinout
1. VBAT_OK - Battery voltage status indicator
2. VOUT - Boost converter output
3. VBAT - Battery connection
4. VBAT_SEC - Secondary battery connection
5. NC - No internal connection
6. VSTOR - Storage element connection
7. VREF_SAMP - Reference voltage sample
8. MPPT - Maximum Power Point Tracking (input)
9. VREF - Reference voltage output
10. VSS - Ground
11. VDD - Input voltage pin
12. VOC_SAMP - Open-circuit voltage sample
13. LBOOST - Boost inductor connection
14. VIN_DC - DC input voltage
15. EN - Enable pin
16. PMID - Input power management
The BQ25504RGTR is designed to efficiently manage the energy flow from various energy sources such as solar cells or thermal electric generators to a battery or supercapacitor.