The ISL9519TQFNEVAL2Z board evaluates 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 voltage below 7V (i.e., 5V input) but has protection from input voltage up to 22V. It differs from the design for input voltage >7V (ISL9519EVAL1Z) in 3 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.
ISL9519 Key Features
- ±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
- Notebook Computers
- Tablet PCs
- Portable Equipment with Rechargeable Batteries
|Tools Orderable Part Number (s)||Production Status||Manufacturer||Suggested Single Tool Price||Description||Distributor Stock||Distributors||Distributor Purchase|
|ISL9519TQFNEVAL2Z||Mass Production||Renesas||$333.00||0||Contato Distribuidor|
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