MCP73871 Microchip Technology, MCP73871 Datasheet - Page 6

• Manufacturer Part Number: MCP73871
• Description: Stand-Alone System Load Sharing and Li-Ion / Li-Polymer Battery Charge Management Controller
• Manufacturer: Microchip Technology

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MCP73871
DC CHARACTERISTICS (CONTINUED)
DS22090B-page 6
Electrical Specifications: Unless otherwise indicated, all limits apply for V
Typical values are at +25°C, V
Input Current Limit Control (ICLC)
USB-Port Supply Current Limit
AC-DC Adapter Current Limit
Voltage Proportional Charge Control (VPCC - Input Voltage Regulation)
VPCC Input Threshold
VPCC Input Threshold Tolerance
Input Leakage Current
Precondition Current Regulation (Trickle Charge Constant-Current Mode)
Precondition Current Ratio
Precondition Current Threshold Ratio
Precondition Hysteresis
Automatic Charge Termination Set Point
Charge Termination Current Ratio
Automatic Recharge
Recharge Voltage Threshold Ratio
IN-to-OUT Pass Transistor ON-Resistance
ON-Resistance
Charge Transistor ON-Resistance
ON-Resistance
BAT-to-OUT Pass Transistor ON-Resistance
ON-Resistance
Battery Discharge Current
Output Reverse Leakage Current
Status Indicators - STAT1 (LBO), STAT2, PG
Sink Current
Low Output Voltage
Input Leakage Current
Low Battery Indicator (LBO)
Low Battery Detection Threshold
Low Battery Detection Hysteresis
Note 1:
2:
The value is ensured by design and not production tested.
The maximum available charge current is also limited by the value set at PROG1 input.
Parameters
IN
= [V
REG
(typical) + 1.0V]
V
I
I
PREG
DISCHARGE
I
V
PTH
LIMIT_USB
I
R
R
R
LIMIT_AC
LBO_HYS
V
V
V
I
V
Sym
I
TERM
DS_ON
DSON_
DS_ON
V
SINK
VPCC
RTOL
PHYS
I
I
V
RTH
LK
LK
/ V
OL
LBO
/ I
REG
REG
V
0.21V
1500
2.85
2.95
3.05
Min
400
REG
7.5
7.5
80
69
75
—
-3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
-
Disable
V
0.15V
1650
1.23
0.01
0.01
Typ
450
105
100
REG
200
200
200
150
0.4
3.0
3.1
3.2
90
10
72
10
30
30
30
16
—
-6
IN
= V
-
REG
V
0.09V
1800
Max
12.5
12.5
3.15
3.25
3.35
100
500
125
REG
-13
+3
75
40
40
40
35
—
—
—
—
—
—
—
1
1
1
+ 0.3V to 6V, T
-
Units
mA
mA
mA
mV
mA
mA
mΩ
mΩ
mΩ
mA
mV
µA
µA
µA
µA
µA
µA
%
%
%
V
V
V
V
V
V
© 2009 Microchip Technology Inc.
A
PROG2 = Low, SEL = Low
PROG2 = High, SEL = Low
T
I
T
V
PROG1 = 1.0 kΩ to 10 kΩ
T
V
V
PROG3 = 10 kΩ
PROG3 = 100 kΩ
T
V
V
V
V
Shutdown
(V
Shutdown (0 < V
V
Charge Complete
I
High Impedance, V
V
T
V
SEL = High, T
OUT
SINK
A
A
A
A
A
= -40°C to +85°C.
VPCC
BAT
BAT
BAT
DD
DD
DD
BAT
BAT
BAT
BAT
=-5°C to +55°C
=-5°C to +55°C
=-5°C to +55°C
=-5°C to +55°C
=-5°C to +55°C
=10 mA
= 4.5V, T
= 4.5V, T
= 4.5V, T
= Power Out, No Load
= 4 mA
Low-to-High
High-to-Low
High-to-Low
> V
Low-to-High
< V
= V
IN
Conditions
DD
DD
, PG = Hi-Z
< V
J
J
J
A
=-5°C to +55°C
= 105°C
= 105°C
= 105°C
UVLO
DD
DD
< V
)
on pin
BAT
)