Electrical Characteristics

IN = 1.8 to 5.5V, TA = -40 to +85°C unless otherwise noted. Typical values are at IN = 3.3V and TA = 25°C.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

 

 

 

 

 

 

 

Basic Operation

 

 

 

 

 

 

 

 

 

 

 

 

VIN

Operating Voltage

 

1.8

 

5.5

V

IQ

Quiescent Current

IN = 5.5V, VONA = VONB = 0V, IOUT = 0mA

 

52.5

94.5

μA

ISD

IN Shutdown Current

VONA = VONB = 5.5V, IN = 5.5V

 

 

3

μA

OUTA = OUTB = Short to GND,

 

 

RON

On Resistance

IN = 5.5V, IOUT = 200mA, TA = 25°C

 

75

140

m

IN = 5.5V, IOUT = 200mA, TA = -40°C to 85°C

 

90

 

 

 

 

 

 

VIH

ON Input Logic High Voltage (ON)

IN = 1.8V

0.8

 

 

V

 

 

 

 

IN = 5.5V

1.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIL

ON Input Logic Low Voltage

IN = 1.8V

 

 

0.5

V

 

 

 

 

IN = 5.5V

 

 

0.9

 

 

 

 

 

 

 

 

 

 

 

 

ION

ON Input Leakage

VON = IN or GND

-1

 

1

μA

 

FLAGB Output Logic Low Voltage

IN = 5.5V, ISINK = 1mA

 

0.1

0.2

V

 

IN = 1.8V, ISINK = 1mA

 

0.15

0.30

 

 

 

 

 

FLAGB Output High Leakage Current

IN = VON = 5V

 

 

1

μA

Protections

 

 

 

 

 

 

 

 

 

 

 

 

 

ILIM

Current Limit

IN = 3.3V, VOUTA = VOUTB = 3V, TA = 25°C

1.1

1.3

1.5

A

 

 

Shutdown Threshold

 

140

 

 

TSD

Thermal Shutdown

 

 

 

 

°C

Return from Shutdown

 

130

 

 

 

 

 

 

 

 

 

 

Hysteresis

 

10

 

 

 

 

 

 

 

 

 

VUVLO

Under-Voltage Shutdown

IN Increasing

1.55

1.65

1.75

V

VUVLO_HYS

Under-Voltage Shutdown Hysteresis

 

 

50

 

mV

Dynamic

 

 

 

 

 

 

 

 

 

 

 

 

 

tON

Turn-On Time

RL = 500, CL = 0.1μF

 

113.5

 

μs

tOFF

Turn-Off Time

RL = 500

 

6

 

μs

tR

OUTA, OUTB Rise Time

RL = 500, CL = 0.1μF

 

13.5

 

μs

tBLANK

Over-Current Blanking Time

FPF2300, FPF2302

5

10

20

ms

tRSTRT_BLANK

Startup FLAGB Blanking Time

FPF2303(5)

5

10

20

ms

tRSRT

Auto-Restart Time

FPF2300

 

504

 

ms

tCLR

Current Limit Response Time

IN = 3.3V, Moderate Over-Current Condition

 

20

 

μs

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.

OUT

10%

 

 

 

 

 

90%

90%

 

 

 

 

 

 

 

10%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tR

 

 

 

 

tF

 

ON

50%

 

 

 

 

 

 

 

 

 

 

50%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUT

 

 

 

 

 

 

10%

 

 

 

 

 

 

90%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tDON

 

 

tDOFF

 

tON = tR + tDON

tOFF = tF + tDOFF

 

Figure 6. Timing Diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

© 2009 Fairchild Semiconductor Corporation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

www.fairchildsemi.com

FPF2300/02/03 • Rev. 1.1.3

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

Switch Limit Current Output-Dual — FPF2300/02/03