Datasheet

© 2007 Microchip Technology Inc. DS22036B-page 3
MCP73811/2
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
V
DDN
................................................................................7.0V
All Inputs and Outputs w.r.t. V
SS
............... -0.3 to (V
DD
+0.3)V
Maximum Junction Temperature, T
J
............ Internally Limited
Storage temperature .....................................-65°C to +150°C
ESD protection on all pins
Human Body Model (1.5 kW in Series with 100 pF) ......≥ 4kV
Machine Model (200pF, No Series Resistance) ..............400V
† 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
DD
= [V
REG
(typ.) + 0.3V] to 6V,
T
A
= -40°C to +85°C. Typical values are at +25°C, V
DD
= [V
REG
(typ.) + 1.0V]
Parameters Sym Min Typ Max Units Conditions
Supply Input
Supply Voltage V
DD
3.75 — 6 V
Supply Current I
SS
— 1000 1500 µA Charging
— 50 100 µA Standby (CE = V
SS
)
— 1.2 5 µA Shutdown
(V
DD
< V
BAT
- 100 mV)
Voltage Regulation (Constant Voltage Mode)
Regulated Output Voltage V
REG
—4.20—VV
DD
=[V
REG
(Typ)+1V]
I
OUT
=10 mA
Output Voltage Tolerance V
RTOL
-1 — +1 % T
A
=-5°C to +55°C
Line Regulation |(ΔV
BAT
/V
BAT
)
/ΔV
DD
|
— 0.09 0.30 %/V V
DD
=[V
REG
(Typ)+1V] to 6V
I
OUT
=10 mA
Load Regulation |ΔV
BAT
/V
BAT
| — 0.09 0.30 % I
OUT
=10 mA to 50 mA
V
DD
=[V
REG
(Typ)+1V]
Supply Ripple Attenuation PSRR — 52 — dB I
OUT
=10 mA, 10 Hz to 1 kHz
—47—dBI
OUT
=10 mA, 10 Hz to 10 kHz
—22—dBI
OUT
=10 mA, 10 Hz to 1 MHz
Current Regulation (Fast Charge Constant-Current Mode)
Fast Charge Current I
REG
— 85 — mA MCP73811 - PROG = Low
Regulation — 450 — mA MCP73811 - PROG = High
— 50 — mA MCP73812 - PROG = 20 kΩ
— 100 — mA MCP73812 - PROG = 10 kΩ
— 500 — mA MCP73812 - PROG = 2 kΩ
Charge Current Tolerance I
RTOL
-10 — +10 % T
A
=-5°C to +55°C
Pass Transistor ON-Resistance
ON-Resistance R
DSON
— 400 — mΩ V
DD
= 3.75V, T
J
= 105°C
Battery Discharge Current
Output Reverse Leakage I
DISCHARGE
Current — 0.5 2 µA Shutdown
(V
DD
< V
BAT
- 100 mV)