MCP73828
1.0 ELECTRICAL
CHARACTERISTICS
1.1 Maximum Ratings*
VIN...................................................................... -0.3V to 6.0V
All inputs and outputs w.r.t. GND ................-0.3 to (VIN+0.3)V
Current at CD10 Pin ................................................ +/-30 mA
Current at VDRV.......................................................... +/-1 mA
Maximum Junction Temperature, TJ.............................. 150°C
Storage temperature .....................................-65°C to +150°C
ESD protection on all pins ..................................................≥ 4 kV
*Notice: Stresses above those listed under “Maximum Rat-
ings” 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. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
PIN FUNCTION TABLE
Pin Name
Description
1
SHDN Logic Shutdown
2
GND Battery Management
0V Reference
3 THERM Cell Temperature Monitor
4
CD10 Charge Complete Output
5
VBAT Cell Voltage Monitor Input
6
VDRV Drive Output
7
VSNS Charge Current Sense Input
8
VIN
Battery Management
Input Supply
DC CHARACTERISTICS: MCP73828-4.1, MCP73828-4.2
Unless otherwise specified, all limits apply for VIN = [VREG(typ)+1V], RSENSE = 500 mΩ, TA = -20°C to +85°C.
Typical values are at +25°C. Refer to Figure 1-1 for test circuit.
Parameter
Sym
Min
Typ
Max
Units
Conditions
Supply Voltage
VIN
Supply Current
IIN
Voltage Regulation (Constant Voltage Mode)
Regulated Output Voltage
VREG
Line Regulation
∆VBAT
Load Regulation
Output Reverse Leakage Current
External MOSFET Gate Drive
Gate Drive Current
∆VBAT
ILK
IDRV
Gate Drive Minimum Voltage
VDRV
Current Regulation (Controlled Current Mode)
Current Sense Gain
ACS
Current Limit Threshold
VCS
Foldback Current Scale Factor
K
Charge Complete Indicator - CD10
Current Threshold
ITH
Low Output Voltage
VOL
Leakage Current
ILK
Shutdown Input - SHDN
Input High Voltage Level
VIH
Input Low Voltage Level
VIL
Input Leakage Current
ILK
4.5
—
—
4.059
4.158
-10
-1
—
—
0.08
—
—
40
—
—
—
—
40
—
—
—
0.7
265
4.1
4.2
—
+0.2
10
—
—
1.6
100
53
0.43
10
—
—
—
—
—
5.5
V
15
µA
Shutdown, VSHDN = 0V
560
Constant Voltage Mode
4.141
4.242
10
+1
—
1
—
—
V
MCP73828-4.1 only
V
MCP73828-4.2 only
mV
VIN = 4.5V to 5.5V,
IOUT = 75 mA
mV
IOUT=10 mA to 75 mA
µA
VIN=Floating, VBAT=VREG
mA
Sink, CV Mode
mA
Source, CV Mode
V
—
dB
∆(VSNS-VDRV) / ∆VBAT
75
mV
(VIN-VSNS) at IOUT
—
A/A
—
%IOUT(PEAK)
400
mV
ISINK = 10 mA
1
µA
ISINK=0 mA, VCD10=5.5V
—
%VIN
25
%VIN
1
µA
VSHDN = 0V to 5.5V
2002 Microchip Technology Inc.
DS21706A-page 3