MCP73871DM-VPCC Microchip Technology, MCP73871DM-VPCC Datasheet - Page 9

• Manufacturer Part Number: MCP73871DM-VPCC
• Description: DEMO BOARD FOR MCP73871
• Manufacturer: Microchip Technology

Specifications of MCP73871DM-VPCC

• Main Purpose: Power Management, Battery Charger
• Embedded: No
• Utilized Ic / Part: MCP73871
• Primary Attributes: 1 Cell- Li-Ion / Li-Pol, 4.2V @ 100 ~ 500mA: USB, 1A: AC Adaptor
• Secondary Attributes: Safety Timer, Thermal Protection, Automatic Charge Termination and Recharge
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

1.1
FIGURE 1-1:
(VPCC) Management Typical Application.
© 2009 Microchip Technology Inc.
AC-DC Adapter
10 μF
or USB Port
330 kΩ
110 kΩ
INTRODUCTION
OUT
Low Hi
Low Hi
Low Hi
Low Hi
The MCP73871 Demo Board with Voltage Proportional Current Control is designed to
demonstrate Microchip's stand-alone linear Li-Ion battery charger with system power
path and load sharing management control solution. The MCP73871 integrates the
required elements to meet design challenges when developing new Li-Ion / Li-Polymer
batteries powered products.
The MCP73871 requires minimum external components to power the system load and
charge single cell Li-Ion batteries independently. When input power is absent or
insufficient, the Li-Ion battery becomes the primary power source and supports the
required system load current. The MCP73871 Demo Board with Voltage Proportional
Current Control feature added is developed to assist engineers in reducing product
design cycle and time by utilizing Microchip’s favorite stand-alone Li-Ion battery
charger and system load sharing management controller.
This chapter provides an overview of the MCP73871 Demo Board with Voltage
Proportional Current Control and covers the following topics:
• What is the MCP73871 Demo Board with Voltage Proportional Current Control?
• What the MCP73871 Demo Board with Voltage Proportional Current Control Kit
MCP73871 With System Power Path and Voltage Proportional Current Control
includes?
Chapter 1. Product Overview
470Ω
470Ω
470Ω
18, 19
17
6
7
2
3
9
4
8
PG
IN
STAT2
STAT1
LBO
VPCC
SEL
PROG2
TE
CE
CURRENT CONTROL USER’S GUIDE
MCP73871
MCP73871 DEMO BOARD WITH
V
BAT_SENSE
THERM
PROG1
PROG3
VOLTAGE PROPORTIONAL
V
OUT
V
BAT
SS
10,11 (EP)
13
12
1, 20
14, 15, 16
5
R
R
PROG1
PROG3
4.7 μF
4.7 μF
10 kΩ
NTC
DS51812B-page 9
System
Load
Single-Cell
Li-Ion
Battery