Overview
The FSA832L10X_F131, produced by onsemi, is a USB 2.0 high-speed charger detection IC with an integrated isolation switch. This component is designed for use with micro/mini USB ports and is compliant with the USB Battery Charging Specification, Rev 1.2 (BC1.2). It detects various types of USB battery chargers, including Dedicated Charging Ports (DCP), Charging Downstream Ports (CDP), and Standard Downstream Ports (SDP), as well as proprietary chargers and PS/2 ports. Although this device is discontinued and not recommended for new designs, it remains relevant for existing applications and maintenance purposes.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Operating Temperature Range | -40 | 85 | °C | |
| VBUS Voltage from USB Connector | -2 | 28 | V | |
| USB Switch I/O Voltage (DP_CON, DM_CON, DP_HOST, DM_HOST) | -0.5 | 6.0 | V | |
| USB Switch Current (DP_CON to DP_HOST, DM_CON to DM_HOST) | -30 | 30 | mA | |
| Input HIGH Voltage (GOOD_BAT) | 1.1 | V | ||
| Input LOW Voltage (GOOD_BAT) | 0.5 | V | ||
| Dead Battery Provision (DBP) Timer | 15 | 30 | 45 | min |
| Package | 10-Lead MicroPak™ 1.6 x 2.1 mm, 0.5 mm Pitch |
Key Features
- Detects USB battery chargers and complies with USB Battery Charging Specification, Rev 1.2 (BC1.2)
- Supports Data Contact Detect (DCD) and Dead Battery Provision (DBP) with a 30-minute timer
- Detects proprietary chargers that pull the USB data lines HIGH (2.7 V / 2.0 V), floating data lines, and PS/2 ports
- Integrated isolation switch for charging downstream port (CDP) and standard downstream port (SDP)
- VBUS voltage tolerance up to 28 V and -2 V for reverse polarity protection
- Automatic charger detection and switch control based on VBUS and GOOD_BAT signals
Applications
- Mobile phones
- MP3 players
- Mobile Internet Devices (MIDs)
- Personal Digital Assistants (PDAs)
- Digital cameras
- Notebooks and netbooks
Q & A
- What is the FSA832L10X_F131 used for?
The FSA832L10X_F131 is used for detecting USB battery chargers and managing the charging process in portable devices, ensuring compliance with the USB Battery Charging Specification, Rev 1.2 (BC1.2).
- What types of chargers can the FSA832L10X_F131 detect?
The FSA832L10X_F131 can detect Dedicated Charging Ports (DCP), Charging Downstream Ports (CDP), Standard Downstream Ports (SDP), proprietary chargers, and PS/2 ports.
- What is the Dead Battery Provision (DBP) feature?
The DBP feature allows a portable device with a dead battery to draw up to 100 mA from the USB VBUS line for a maximum of 45 minutes, as specified in the BC1.2 standard.
- What is the operating temperature range of the FSA832L10X_F131?
The operating temperature range is -40°C to 85°C.
- What is the maximum VBUS voltage tolerance?
The VBUS pin can tolerate voltages up to 28 V and down to -2 V.
- What package type does the FSA832L10X_F131 come in?
The component comes in a 10-Lead MicroPak™ package with dimensions 1.6 x 2.1 mm and a 0.5 mm pitch.
- Is the FSA832L10X_F131 still recommended for new designs?
No, the FSA832L10X_F131 is discontinued and not recommended for new designs. Users should contact their onsemi representative for alternative solutions.
- What is the purpose of the GOOD_BAT signal?
The GOOD_BAT signal indicates whether the battery is in a good state or not, influencing the charger detection and switch control logic.
- How does the FSA832L10X_F131 handle reverse polarity protection?
The device can tolerate VBUS voltages down to -2 V for cases where a charger is plugged in backwards.
- What is the typical application scenario for the FSA832L10X_F131?
A typical application scenario includes using the FSA832L10X_F131 in mobile phones, MP3 players, and other portable devices to manage USB charging.
