BQ 24190 Mobile Phone IC
Power Optimization for Mobile Devices
The BQ 24190 Mobile Phone IC is designed to deliver exceptional power management solutions for your devices. Its compact size and high functionality make it the perfect component for mobile technology advancements, ensuring efficient energy usage and prolonged device life. BQ 24190 Mobile Phone IC
Versatile and Industry-Standard Compatibility
This IC offers versatile compatibility with a wide range of mobile phone systems. The BQ 24190 integrates seamlessly into your device’s hardware, adhering to industry standards to ensure peak performance and reliability. Say goodbye to battery inefficiencies and overheating issues with this innovative solution. BQ 24190 Mobile Phone IC
High-Performance Features
The BQ 24190 Mobile Phone IC is engineered with cutting-edge technology and optimized for smart charging and power control. With robust safety features, it protects your device from overcharging or power faults, guaranteeing seamless functionality and durability. BQ 24190 Mobile Phone IC
The BQ24190 is a highly integrated, I2C-controlled switch-mode battery charge management and system power path management IC. Manufactured by Texas Instruments (TI), it is a staple in modern mobile phone and tablet designs due to its high efficiency and support for high-capacity single-cell Li-ion and Li-polymer batteries. BQ 24190 Mobile Phone IC
Below is a detailed breakdown of its specifications, organized for quick technical reference. BQ 24190 Mobile Phone IC
Technical Specifications Table
| Feature / Parameter | Specification |
| Manufacturer | Texas Instruments (TI) |
| Input Voltage Range | 3.9 V to 17 V (Operating) |
| Max Charge Current | 4.5 A |
| Charge Efficiency | 92% at 2 A; 90% at 4 A |
| Switching Frequency | 1.5 MHz |
| Interface | I2C Serial Interface |
| Battery Type | 1-Cell Li-ion or Li-Polymer |
| Output Voltage | Adjustable (Standard 3.5 V to 4.4 V via I2C) |
| USB Support | USB 2.0, USB 3.0, and USB BC1.2 |
| USB OTG Mode | 5 V at 1.3 A (Synchronous Boost Converter) |
| Boost Efficiency | 93% at 5 V / 1 A |
| Discharge Path | 12 mΩ MOSFET (Up to 9 A discharge) |
| Package Type | 24-Pin VQFN (4.00 mm × 4.00 mm) |
| Operating Temp | -40°C to +85°C |
Key Functional Features
1. Narrow VDC (NVDC) Power Path Management
The BQ24190 utilizes NVDC management, which allows the system to be powered even if the battery is completely depleted or removed. The system voltage is regulated slightly above the battery voltage but never drops below the minimum system voltage (typically programmable at 3.5 V).
2. High-Speed Charging
With a maximum charging current of 4.5 A, this IC supports “Fast Charge” protocols. It includes battery path impedance compensation to accelerate charge time by compensating for the resistance in cables and connectors.
3. Integrated Protections
To ensure the safety of the mobile device and the user, the IC includes:
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Thermal Regulation: Reduces charge current if the junction temperature exceeds 120°C.
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Input Over-Voltage Protection (OVP): Protects the system from high-voltage spikes from faulty adapters.
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Safety Timers: Prevents indefinite charging of a damaged battery.
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Battery Temperature Sensing: Interfaces with the battery’s thermistor (TS1/TS2) to monitor for overheating.
Pin Configuration and Logic
The BQ24190 is often chosen over its siblings (like the BQ24192) because it includes D+/D- detection. This allows the IC to automatically detect whether it is connected to a standard USB port or a high-power wall adapter without requiring external components.
| Pin Group | Purpose |
| VBUS | Input power source pin. |
| SW / BTST | High-frequency switching node for the inductor. |
| SYS | System output supply pin. |
| BAT | Connection to the positive terminal of the battery. |
| SCL / SDA | I2C clock and data lines for host communication. |
| STAT | Open-drain output indicating charge status (Blinking = Fault). |
| OTG | Input pin to enable the 5V boost mode for powering USB peripherals. |
Common Applications
While primarily known as a “Mobile Phone IC,” its versatility makes it suitable for:
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Smartphones and Tablets: Main charging controller for brands like Xiaomi, Oppo, and Vivo.
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Portable Media Players: Used in devices that require high-current USB charging.
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Gaming Consoles: Notably used in the Nintendo Switch for power management and battery charging.
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Portable Medical Devices: Where reliable power path management is critical.
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