Microchip Technology MCP7383XRD-PPM Datenbogen

DS22005B-page 4

© 2009 Microchip Technology Inc.

Preconditioning Current Regulation (Trickle Charge Constant Current Mode)
Precondition Current Ratio

I

PREG 

/ I

REG

7.5

10

12.5

%

PROG = 1.0 k

Ω to 10 kΩ

15

20

25

%

T

A

=-5°C to +55°C

30

40

50

%

—

100

—

%

Precondition Voltage Threshold 

Ratio

V

PTH

 / V

REG

64

66.5

70

%

V

BAT

 Low-to-High

69

71.5

75

%

Precondition Hysteresis

V

PHYS

—

100

—

mV

V

BAT

 High-to-Low

Charge Termination
Charge Termination Current Ratio

I

TERM

 / I

REG

3.75

5

6.25

%

PROG = 1.0 k

Ω to 10 kΩ

5.6

7.5

9.4

%

T

A

=-5°C to +55°C

7.5

10

12.5

%

15

20

25

%

Automatic Recharge
Recharge Voltage Threshold Ratio

V

RTH

 / V

REG

—

94.0

—

%

V

BAT

 High-to-Low

—

96.5

—

%

Pass Transistor ON-Resistance
ON-Resistance

R

DSON

—

300

—

m

Ω

V

DD

 = 3.75V

T

J

 = 105°C

Battery Discharge Current
Output Reverse Leakage Current

I

DISCHARGE

—

0.15

2

µA

PROG Floating 

—

0.25

2

µA

V

DD

 < V

BAT

—

0.15

2

µA

V

DD

 < V

STOP

—

-5.5

-15

µA

Charge Complete

Status Indicators - STAT1, STAT2, PG
Sink Current

I

SINK

—

15

25

mA

Low Output Voltage

V

OL

—

0.4

1

V

I

SINK

 = 4 mA

Input Leakage Current

I

LK

—

0.01

1

µA

High Impedance, 6V on pin

PROG Input
Charge Impedance Range

R

PROG

1

—

20

k

Ω

Standy Impedance

R

PROG

70

—

200

k

Ω

Minimum Impedance for 
Standby

Thermistor Bias
Thermistor Current Source

I

THERM

47

50

53

µA

2 k

Ω < R

THERM

 < 50 k

Ω

Thermistor Comparator
Upper Trip Threshold

V

T1

1.20

1.23

1.26

V

V

THERM

 Low-to-High

Upper Trip Point Hysteresis

V

T1HYS

—

-50

—

mV

Lower Trip Threshold

V

T2

0.235

0.25

0.265

V

V

THERM

 High-to-Low

Lower Trip Point Hysteresis

V

T2HYS

—

50

—

mV

System Test (LDO) Mode
Input High Voltage Level

V

IH

(V

DD

-0.1)

—

—

V

THERM Input Sink Current

I

SINK

3

6

20

µA

Stand-by or system test mode

Bypass Capacitance

C

BAT

1

—

—

µF

I

OUT

 < 250 mA

4.7

—

—

µF

I

OUT

 > 250 mA

Electrical Specifications: Unless otherwise specified, all limits apply for V

DD

= [V

REG

(Typical)+0.3V] to 6V, T

A

=-40°C to 85°C. 

Typical values are at +25°C, V

DD

= [V

REG

(Typical)+1.0V]