概要
説明
The ISL9519TQFNEVAL2Z evaluation board is used to evaluate the ISL9519 narrow VDC regulator/charger with SMBus interface. The ISL9519 is a highly integrated battery charger controller for Li-ion/Li-ion polymer batteries with SMBus interface controlling system voltage, charge current and input current limiting. The evaluation board includes a USB to SMBus interface to allow users to control the ISL9519 from a personal computer.
ISL9519TQFNEVAL2Z is designed for input voltages below 7V (i.e., 5V input) but has protection from input voltage up to 22V. It differs from the design for input voltages >7V (ISL9519EVAL1Z) in three ways. ISL9519TQFNEVAL2Z drives both input PFETs with AGATE to turn both on when adapter voltage is high. ISL9519EVAL1Z drives SGATE on only when input current is >300mA. ISL9519TQFNEVAL2Z has a circuit that connects input voltage to VDD when the input is less than 5.2V to bypass the internal LDO. ISL9519TQFNEVAL2Z has a zener to protect ADET from voltages >7V absolute maximum if the input voltage is >9.5V.
特長
- ±0.5% system voltage accuracy (-10 °C to +100 °C)
- ±3% accurate input current limit (-10 °C to +100 °C)
- ±3% accurate battery charge current limit
- Variable switching frequency at light load conditions for higher efficiency
- Fixed frequency operation at higher loads
- Trickle charge system for deeply discharged batteries
- SMBus 2-wire serial interface
- Default system voltage values for 1-cell, 2-cell or 3-cell operation selected by an external pin
- Adapter in-rush FET control
- Adapter isolation FET control
- Battery short circuit protection
- Fast system-load transient response
- Monitor outputs
- 11-bit max system voltage setting
- 7-bit min system voltage setting
- 6-bit charge current setting: Over 8A battery charger current
- 6-bit adapter current setting: Over 8A adapter current
- +4.5V to +22V adapter voltage range
アプリケーション
アプリケーション
- Notebook computers
- Tablet PCs
- Portable equipment with rechargeable batteries
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product