© 2009 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FPF2300/02/03 • Rev. 1.1.3

5

Electrical Characteristics

Note:

5.

FPF2303 has a 10ms startup FLAGB blanking time when the part is turned on via the ON pin to ensure transient load currents settle.

Figure 6. Timing Diagram

Symbol

Parameter

Conditions

Min. Typ. Max. Units

Basic Operation

Operating Voltage

1.8

5.5

V

Quiescent Current

52.5

94.5

μA

IN Shutdown Current

OUTA = OUTB = Short to GND,

3

μA

On Resistance

75

140

mΩ

90

ON Input Logic High Voltage (ON)

IN = 1.8V

0.8

V

IN = 5.5V

1.4

ON Input Logic Low Voltage

IN = 1.8V

0.5

V

IN = 5.5V

0.9

ON Input Leakage

-1

1

μA

FLAGB Output Logic Low Voltage

0.1

0.2

V

0.15

0.30

FLAGB Output High Leakage Current

1

μA

Protections

Current Limit

1.1

1.3

1.5

A

TSD

Thermal Shutdown

Shutdown Threshold

140

°C

Return from Shutdown

130

Hysteresis

10

Under-Voltage Shutdown

IN Increasing

1.55

1.65

1.75

V

Under-Voltage Shutdown Hysteresis

50

mV

Dynamic

Turn-On Time

113.5

μs

Turn-Off Time

6

μs

OUTA, OUTB Rise Time

μs

Over-Current Blanking Time

FPF2300, FPF2302

5

10

20

ms

FPF2303(5)

510

20

ms

Auto-Restart Time

FPF2300

504

ms

Current Limit Response Time

IN = 3.3V, Moderate Over-Current Condition

20

μs

90%

10%

90%

10%

50%

50%

10%

90%

OUT

OUT

ON