Datasheet

2008-2013 Microchip Technology Inc. DS20002090C-page 5
MCP73871
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
V
IN
....................................................................................7.0V
All Inputs and Outputs w.r.t. ................ V
SS
-0.3V to V
DD
+0.3V
(V
DD
= V
IN
or V
BAT
)
Maximum Junction Temperature, T
J
............Internally Limited
Storage temperature .....................................-65°C to +150°C
ESD protection on all pins
Human Body Model (1.5 k in Series with 100 pF)4 kV
Machine Model (200 pF, No Series Resistance) .............300V
† Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all limits apply for V
IN
= V
REG
+ 0.3V to 6V, T
A
= -40°C to +85°C.
Typical values are at +25°C, V
IN
= [V
REG
(typical) + 1.0V]
Parameters Sym Min Typ Max Units Conditions
Supply Input
Supply Voltage V
IN
V
REG
+ 0.3V 6 V
Supply Current I
SS
2500 3750 μA Charging
260 350 μA Charge Complete
180 300 μA Standby
—2850μA Shutdown
(V
DD
< V
BAT
– 100 mV or
V
DD
< V
STOP
)
UVLO Start Threshold V
START
V
REG
+ 0.05V V
REG
+ 0.15V V
REG
+ 0.25V V V
DD
= Low-to-High
UVLO Stop Threshold V
STOP
V
REG
– 0.07V V
REG
+ 0.07V V
REG
+ 0.17V V V
DD
= High-to-Low
UVLO Hysteresis V
HYS
—90mV
Voltage Regulation (Constant Voltage Mode)
Regulated
Charge Voltage
V
REG
4.080 4.10 4.121 V V
DD
= [V
REG
(typical) + 1V]
I
OUT
= 10 mA
T
A
= -5°C to +55°C
4.179 4.20 4.221 V
4.328 4.35 4.372 V
4.378 4.40 4.422
Regulated Charge
Voltage Tolerance
V
RTOL
-0.5 +0.5 % T
A
= +25°C
-0.75 +0.75 % T
A
= -5°C to +55°C
Line Regulation V
BAT
/V
BAT
)
/
V
DD
|
0.08 0.20 %/V V
DD
= [V
REG
(typical) + 1V] to 6V
I
OUT
= 10 mA
Load Regulation V
BAT
/V
BAT
| 0.08 0.18 % I
OUT
= 10 mA to 150 mA
V
DD
= [V
REG
(typical) + 1V]
Supply Ripple
Attenuation
PSRR -47 dB I
OUT
= 10 mA, 1 kHz
-40 dB I
OUT
= 10 mA, 10 kHz
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.