MP2681B Datasheet: CC/CV Controller





MP2681B CC/CV Controller Datasheet

Part Number MP2681B
Description CC/CV Controller
Manufacture MPS
Total Page 23 Pages
PDF Download Download MP2681B Datasheet PDF

Features: The Future of Analog IC Technology MP26 81B CC/CV Controller with Full Protecti on and Indication One Chip Solution for Power Tools Applications DESCRIPTION The MP2681B is a highly integrated Li-i on or Lipolymer switch-mode battery-cha rge controller with full protection and status indication. This part integrate s a precision voltage reference and cha rge status indications suitable for AC adapter input and cradle charger applic ations. The MP2681B detects automatical ly the battery cell through a battery I D resistor and regulates the battery vo ltage according to the corresponding ce ll configurations: 3S, 4S, and 5S. Then , the AC adapter output is regulated au tomatically according to the chosen bat tery configuration. Additionally, if th e battery pack does not have an ID resi stor, the charge termination voltage ca n be configured by setting a dedicated voltage to the ID pin, according to the pre-set VID values representing the ba ttery configuration. The MP2681B charges the battery in three p.

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The Future of Analog IC Technology
MP2681B
CC/CV Controller
with Full Protection and Indication
One Chip Solution for Power Tools Applications
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 according to the
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 VID values representing the battery
configuration. The MP2681B charges the
battery in three phases: pre-charge, constant
current and constant voltage. Charge is
terminated when the current reaches a
minimum set level. An internal charge timer
provides safety back-up. The MP2681B
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.
MP2681B is available in a 16-pin SOIC
package.
FEATURES
Constant Voltage and Constant-Current
Control
Pre-Charge Mode for Deeply-Discharged
Batteries
Automatic Battery-Cell Detection
Two 1MHz Bandwidth Operational
Amplifiers Output Connected with OR Logic
Wide Input-Voltage Range: 5.0V to 30V
Auto-Recharge
Charge On/Off Control
Programmable Internal Timer
Battery Temperature Monitoring
Charge-Status Indication
Power-Line Fault Detection
Over-Temperature Protection
16-pin SOIC Package
APPLICATIONS
Battery Charger for Portable Tools
Stand-Alone Fast Charger
All MPS parts are lead-free and adhere to the RoHS directive. For 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.
TYPICAL APPLICATION
MP2681B Rev.1.0
www.MonolithicPower.com
12/22/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
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