Àû²©¡¤(¼¯ÍÅ)ÓÐÏÞ¹«Ë¾¹ÙÍø

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.

Features

?High Switching Frequency (1.2MHz)

?Controlled Inductor Current-Ripple Architecture

? Reduced BOM Cost

? Small Inductor and Output Capacitors

?¡À0.4 Accurate Charge Voltage

?¡À2.5 Accurate Input-Current Limiting

?¡À3 Accurate Charge Current

?Single-Point Compensation

?Monitor Outputs for

? ¡À2.5 Accurate Input Current Limit

? ¡À2.5 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