
Maxim Integrated
General Description
The MAX17005/MAX17006/MAX17015 are high-frequency multichemistry battery chargers. These circuits feature a new high-frequency current-mode architecture that significantly reduces component size and cost*. The charger uses a high-side MOSFET with n-channel synchronous rectifier. Widely adjustable charge current, charge voltage, and input current limit simplify the construction of highly accurate and efficient chargers.
FEATUREs
♦High Switching Frequency (1.2MHz)
♦Controlled Inductor Current-Ripple Architecture
Reduced BOM Cost
Small Inductor and Output Capacitors
♦±0.4% Accurate Charge Voltage
♦±2.5% Accurate Input-Current Limiting
♦±3% Accurate Charge Current
♦Single-Point Compensation
♦Monitor Outputs for
±2.5% Accurate Input Current Limit
±2.5% Battery Discharge Current(MAX17015 only)
AC Adapter Detection
♦Analog/PWM Adjustable Charge-Current Setting
♦Battery Voltage Adjustable for 3 and 4 Cells
(MAX17005) or 2 and 3 Cells (MAX17006)
♦Adjustable Battery Voltage (4.2V to 4.4V/Cell)
♦Cycle-by-Cycle Current Limit
Battery Short-Circuit Protection
Fast Response for Pulse Charging
Fast System-Load-Transient Response
♦Programmable Charge Current < 5A
♦Automatic System Power Source Selection with n-Channel MOSFET
♦Internal Boost Diode
♦+8V to +26V Input Voltage Range
APPLICATIONs
Notebook Computers
Tablet PCs
Portable Equipment with Rechargeable Batteries