Core Technical Specifications
According to the Texas Instruments BQ25601D Datasheet, the chip features:
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- Charging Current: Supports up to a 3-A fast charging limit.
- Efficiency: Delivers up to 92% charge efficiency at 2-A using a 1.5-MHz synchronous switch-mode buck converter.
- Input Voltage: Handles a wide input range from 3.9-V to 13.5-V, allowing high-voltage fast charging.
- OTG Boost Mode: Supports USB On-The-Go (OTG) functionality with up to 1.2-A output power.
- Package Type: Manufactured in a ultra-compact 24-pin QFN (Quad Flat No-leads) package configuration.
Common Smartphone Compatibility
This running-model chip manages the USB power input, battery health, and system voltage lines on several popular budget and mid-range smartphone motherboards:
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- Xiaomi/Redmi: Redmi Note 5, Note 5A, and Redmi 5.
- Vivo: Y91, Y93, Y95, Y12, Y15, Y17.
- Infinix/Tecno: Infinix X608 (Hot 6 Pro).
- Oppo & Huawei: Various legacy models like the Huawei P Smart Z.
Symptoms of a Failing BQ25601D IC
When this specific hardware chip burns out or gets damaged by water/surges, your phone will typically exhibit these motherboard-level issues:
- The device will not charge or respond to any USB cables (Fake Charging).
- The phone fluctuates constantly or restarts when plugged into a charger (Unstable Charging).
- The device suffers from No Power / Dead Phone because the NVDC system power path fails.
- Significant overheating near the middle section of the logic board.
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