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MCP73871 Datenblatt(PDF) 6 Page - Microchip Technology

Teilenummer MCP73871
Bauteilbeschribung  Stand-Alone System Load Sharing and Li-Ion/Li-Polymer Battery Charge Management Controller
Download  40 Pages
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Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP73871 Datenblatt(HTML) 6 Page - Microchip Technology

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MCP73871
DS20002090C-page 6
 2008-2013 Microchip Technology Inc.
Current Regulation (Fast Charge Constant Current Mode)
AC-Adapter
Fast Charge
Current
IREG
90
100
110
mA
PROG1 = 10 k

TA = -5°C to +55°C, SEL = Hi
900
1000
1100
mA
PROG1 = 1 k

TA = -5°C to +55°C, SEL = Hi
USB Fast Charge
Current
IREG
80
90
100
mA
PROG2 = Low, SEL = Low,
(Note 2)
TA = -5°C to +55°C
400
450
500
mA
PROG2 = High, SEL = Low,
(Note 2)
TA = -5°C to +55°C
Input Current Limit Control (ICLC)
USB-Port Supply
Current Limit
ILIMIT_USB
80
90
100
mA
PROG2 = Low, SEL = Low
TA = -5°C to +55°C
400
450
500
mA
PROG2 = High, SEL = Low
TA = -5°C to +55°C
AC-DC Adapter Current
Limit
ILIMIT_AC
1500
1650
1800
mA
SEL = High, TA = -5°C to +55°C
Voltage Proportional Charge Control (VPCC - Input Voltage Regulation)
VPCC Input Threshold
VVPCC
1.23
V
IOUT = 10 mA
TA = -5°C to +55°C
VPCC Input Threshold
Tolerance
VRTOL
-3
+3
%
Input Leakage Current
ILK
0.01
1
μAVVPCC = VDD
Precondition Current Regulation (Trickle Charge Constant Current Mode)
Precondition Current
Ratio
IPREG/IREG
7.5
10
12.5
%
PROG1 = 1.0 k
 to 10 k
TA = -5°C to +55°C
Precondition Current
Threshold Ratio
VPTH/VREG
69
72
75
%
VBAT Low-to-High
Precondition Hysteresis
VPHYS
105
mV
VBAT High-to-Low
Automatic Charge Termination Set Point
Charge Termination
Current Ratio
ITERM
75
100
125
mA
PROG3 = 10 k
TA = -5°C to +55°C
7.5
10
12.5
mA
PROG3 = 100 k
TA = -5°C to +55°C
Automatic Recharge
Recharge Voltage
Threshold Ratio
VRTH
VREG – 0.21V VREG – 0.15V VREG – 0.09V
V
VBAT High-to-Low
IN-to-OUT Pass Transistor ON-Resistance
ON-Resistance
RDS_ON
200
m
VDD = 4.5V, TJ = 105°C
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits apply for VIN = VREG + 0.3V to 6V, TA = -40°C to +85°C.
Typical values are at +25°C, VIN = [VREG (typical) + 1.0V]
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1:
The value is ensured by design and not production tested.
2:
The maximum available charge current is also limited by the value set at PROG1 input.


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