MCP73841 Datasheet, PDF (4/24 Pages) Microchip Technology – Advanced Single or Dual Cell Lithium-Ion/ Lithium-Polymer Charge Management Controllers

MCP73841/2/3/4
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits apply for V_DD= [V_REG(Typ)+0.3V] to 12V, T_A = -40°C to +85°C.
Typical values are at +25°C, V_DD = [V_REG(Typ) + 1V].
Parameters
Sym
Min
Typ
Max
Units
Conditions
Preconditioning Current Regulation (Trickle Charge Constant-Current Mode)
Precondition Current
Regulation Threshold
V_PCS
5
10
15
mV
Precondition Threshold Voltage
MCP73841-4.1,
MCP73843-4.1
V_PTH
2.70 2.80 2.90
V
MCP73841-4.2,
MCP73843-4.2
2.75 2.85 2.95
V
MCP73842-8.2,
MCP73844-8.2
5.40 5.60 5.80
V
MCP73842-8.4,
MCP73844-8.4
5.50 5.70 5.90
V
Charge Termination
Charge Termination Threshold
V_TCS
4
7
10
mV
Automatic Recharge
Recharge Threshold Voltage
MCP73841,
MCP73843
V_RTH
V_REG- V_REG- V_REG-
300 mV 200 mV 100 mV
MCP73842,
MCP73844
V_REG- V_REG- V_REG-
600 mV 400 mV 200 mV
External MOSFET Gate Drive
Gate Drive Current
I_DRV
–
2
–
–
-0.5
–
Gate Drive Minimum Voltage
V_DRVMIN
–
–
1.0
Gate - Source Clamp Voltage
V_GS
-7.0
–
-4.5
Thermistor Reference - MCP73841, MCP73842
Thermistor Reference Output
Voltage
V_THREF
2.475 2.55 2.625
Temperature Coefficient
Thermistor Reference Source
Current
TC_THREF
–
+50
–
I_THREF
200
–
–
Thermistor Reference Line
Regulation
|(∆V_THREF/
–
V_THREF)|/
∆V_DD
Thermistor Reference Load
Regulation
∆V_THREF/
–
V_THREF
Thermistor Comparator - MCP73841, MCP73842
0.1
0.25
0.01 0.10
Upper Trip Threshold
Upper Trip Point Hysteresis
Lower Trip Threshold
Lower Trip Point Hysteresis
Input Bias Current
Status Indicator
V_T1
V_T1HYS
V_T2
V_T2HYS
|I_BIAS|
1.18 1.25 1.32
–
-50
–
0.59 0.62 0.66
–
80
–
–
–
2
Sink Current
Low Output Voltage
Input Leakage Current
I_SINK
V_OL
I_LK
4
7
12
–
200
400
–
0.01
1
V
V
mA
mA
V
V
V
ppm/°C
µA
%/V
%
V
mV
V
mV
µA
mA
mV
µA
V_DD – V_SENSE,
T_A = -5°C to +55°C
V_BAT Low-to-High
V_BAT Low-to-High
V_BAT Low-to-High
V_BAT Low-to-High
V_DD – V_SENSE,
T_A = -5°C to +55°C
V_BAT High-to-Low
V_BAT High-to-Low
Sink, CV Mode
Source, CV Mode
V_DD = 4.5V
V_DD = 12.0V
T_A = +25°C, V_DD = V_REG(Typ)+1V,
I_THREF = 0 mA
V_DD=[V_REG(Typ)+1V] to 12V
I_THREF = 0 mA to 0.20 mA
I_SINK = 1 mA
I_SINK = 0 mA, V_STAT1 = 12V
DS21823B-page 4
 2004 Microchip Technology Inc.