General Description

The MAX17005B/MAX17006B/MAX17015B are high-frequency multichemistry battery chargers. These circuits

feature a new high-frequency current-mode architecturethat 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.

特性 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

??? (MAX17015B Only)

? AC Adapter Detection

?Analog/PWM Adjustable Charge-Current Setting

?Battery Voltage Adjustable for 3 and 4 Cells

? (MAX17005B) or 2 and 3 Cells (MAX17006B)

?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