Datasheet
2009-2013 Microchip Technology Inc. DS22191E-page 5
MCP73123/223
Line Regulation V
BAT
/
V
BAT
)/V
DD
|
— 0.05 0.20 %/V V
DD
= [V
REG
(Typical)+1V] to 6V
- MCP73123
V
DD
= [V
REG
(Typical)+1V] to 12V
-
MCP73223
I
OUT
= 50 mA
Load Regulation V
BAT
/V
BAT
| — 0.05 0.20 % I
OUT
= 50 mA - 150 mA
V
DD
= [V
REG
(Typical)+1V]
Supply Ripple Attenuation PSRR — -46 — dB I
OUT
= 20 mA, 10 Hz to 1 kHz
— -30 — dB I
OUT
= 20 mA, 10 Hz to 10 kHz
Battery Short Protection
BSP Start Threshold V
SHORT
— 1.45 — V MCP73123
BSP Start Threshold V
SHORT
— 2.90 — V MCP73223
BSP Hysteresis V
BSPHYS
— 150 — mV
BSP Regulation Current I
SHORT
— 25 — mA
Current Regulation (Fast Charge, Constant-Current Mode)
Fast Charge Current
Regulation
I
REG
130 — 1100 mA T
A
=-5°C to +55°C
— 130 — mA PROG = 10 k
— 1000 — mA PROG = 1.1 k
Preconditioning Current Regulation (Trickle Charge Constant Current Mode)
Precondition Current Ratio I
PREG/
/I
REG
— 10 — % PROG = 1 kto 10 k
T
A
=-5°C to +55°C
— 100 — % No Preconditioning
Precondition Voltage
Threshold Ratio
V
PTH
V
PTH
1.9 2.0 2.1 V MCP73123, V
BAT
Low-to-High
3.8 4.0 4.2 V MCP73223, V
BAT
Low-to-High
Precondition Hysteresis V
PHYS
— 100 — mV V
BAT
High-to-Low (Note 1)
Charge Termination
Charge Termination
Current Ratio
I
TERM
/I
REG
3.7 5 6.3 % PROG = 1 kto 10 k
T
A
=-5°C to +55°C
5.6 7.5 9.4
7.5 10 12.5
15 20 25
Automatic Recharge
Recharge Voltage
Threshold Ratio
V
RTH
/V
REG
93 95 97 % V
BAT
High-to-Low
No Automatic Recharge
— 0 —
Pass Transistor ON-Resistance
ON-Resistance R
DSON
— 350 — m V
DD
= 4.5V, T
J
= 105°C (Note 1)
Status Indicator - STAT
Sink Current I
SINK
— 20 35 mA
Low Output Voltage V
OL
— 0.2 0.5 V I
SINK
= 4 mA
Input Leakage Current I
LK
— 0.001 1 A High Impedance, V
DD
on pin
PROG Input
Charge Impedance Range R
PROG
1 — 10 k
Shutdown Impedance R
PROG
— 200 — k Impedance for Shutdown
PROG Voltage Range V
PROG
0 — 5 V
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits apply for V
DD
= [V
REG
(Typical) + 0.3V] to 12V,
T
A
= -40°C to +85°C. Typical values are at +25°C, V
DD
= [V
REG
(Typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
Note 1: Not production tested. Ensured by design.