MPS EV2681B-S-00A Manual

The Future of Analog IC Technology

DESCRIPTION

The MP2681B is a highly integrated Li-ion or Li-
polymer switch-mode battery-charge controller
with full protection and status indication. This
part integrates a precision voltage reference
and charge status indications suitable for AC
adapter input and cradle charger applications.
The MP2681B detects automatically the battery
cell through a battery ID resistor and regulates
the battery voltage
corresponding cell configurations: 3S, 4S, and
5S. Then, the AC adapter output is regulated
automatically according to the chosen battery
configuration. Additionally, if the battery pack
does not have an ID resistor, the charge
termination voltage can be configured by setting
a dedicated voltage to the ID pin, according to
the pre-set V values representing the battery
ID
configuration. The MP2681B
battery in three phases: pre-charge, constant
current and constant voltage. Charge is
terminated when the
minimum set level. An internal charge timer
provides safety back-up.
provides a fixed pre-charge mode for deeply-
discharged batteries and safety features that
include battery temperature monitoring, NTC
control, charge time-out, and fault control.
ELECTRICAL SPECIFICATION
Parameter Symbol
Input Voltage V
Battery Voltage V
VDD Voltage V
Charge Current I
EV2681B-S-00A Rev. 1.0
8/4/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
according to the
charges the
current reaches
The MP2681B
Value Units
85V-220V V
ACIN
0 to 21 V
BATT
5 to 30 V
SYS
0-4 A
CHG
www.MonolithicPower.com
© 2016 MPS. All Rights Reserved.
with Full Protection and Indication

FEATURES


Constant Voltage and Constant Current
Control

Pre-Charge
Battery

Automatic Battery Cell Detection

Two 1MHz Bandwidth Operational Amplifier
Output Connected with OR Logic

Wide Input Voltage Range: 5V to 30V

Auto-Recharge

Charge On/Off Control

Programmable Internal Timer

Battery Temperature Monitoring

Charge Status Indication

Power Line Fault Detection

Over Temperature Protection

APPLICATIONS


Battery Charger for Portable Tools

Standalone Fast Charger
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For
a
MPS green status, please visit MPS website under Quality Assurance. "MPS"
and "The Future of Analog IC Technology" are Registered Trademarks of
Monolithic Power Systems, Inc.
EV2681B-S-00A
CC/CV Controller
Mode for Deep-discharged
1