Fairchild FPF2303, FPF2302, FPF2300 User Manual

FPF2300/02/03
Dual-Output Current Limit Switch

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

June 2009

Features

! 1.8 to 5.5V Input Voltage Range
! Typical R
! 1.3A Current Limit (Typical)
! Slew Rate Controlled
! Reversed Current Blocking when Disabled
! ESD Protected, Above 4000V HBM
! Independent Thermal Shutdown
! UVLO
! RoHS Compliant

= 75mΩ at IN = 5.5V

ON

Applications

! Notebook Computing
! Peripheral USB Ports
! Networking / USB Based Equiptment

Description

The FPF2300/02/03 are dual-channel load switches of
IntelliMAX™ family. The FPF2300/02/03 consist of dual,
independent, current-limited, slew rate controlled, P­channel MOSFET power switches. Slew rated turn-on
prevents inrush current from glitching supply rails. The
input voltage range operates from 1.8V to 5.5V to fulfill
today's USB device supply requirements. Switch control
is accomplished by a logic input (ON) capable of
interfacing directly with low-voltage control signal.

For the FPF2302, if the constant current condition per­sists after 10ms, these parts shut down the switch and
pull the fault signal pin (FLAGB) LOW. The FPF2300 has
an auto-restart feature that turns the switch on again
after 504ms if the ON pin is still active. For the FPF2303,
a current limit condition immediately pulls the fault signal
pin LOW and the part remains in the constant-current
mode until the switch current falls below the current limit.
For the FPF2300 through FPF2303, the current limit is
typically 1.3A for each switch to align with notebook
computing applications. FPF2300/02/03 is available in
both SO8 and MLP 3X3mm 8-lead packages.

Figure 1. 8-Lead SOP Figure 2. 8-Lead MLP (3x3mm)

Ordering Information

Eco

Status

Auto

Restart

ON Pin

Activity

Mode Package

Constant

Current

Constant

Current

8-Lead SO8

8-Lead Molded Lead­less Package (MLP)

8-Lead Molded Lead­less Package (MLP)

8-Lead Molded Lead­less Package (MLP)

Minimum

Part Number

Current

Limit

FPF2300MX 1100mA 10ms RoHS 504ms Active LOW Restart 8-Lead SO8

FPF2302MX 1100mA 10ms RoHS N/A Active LOW Latch Off 8-Lead SO8

FPF2303MX 1100mA 0ms RoHS N/A Active LOW

FPF2300MPX 1100mA 10ms Green 504 Active LOW Restart

FPF2302MPX 1100mA 10ms Green N/A Active LOW Latch Off

FPF2303MPX 1100mA 0ms Green N/A Active LOW

For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com

FPF2300/02/03 • Rev. 1.1.3

Current Limit

Blanking Time

Application Circuit

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

IN = 1.8V-5.5V

C

IN

Functional Block Diagram

IN

UVLO

ONA

PROTECTION A

IN

ONOFF

ONOFF

ONA

ONB

Figure 3. Typical Application

CONTROL

LOGIC A

THERMAL

FPF2300/2/3

GND

CURRENT

LIMIT A

FLAGB(A)

FLAGB(B)

OUTA TO LOAD A

OUTB

REVERSE
CURRENT

BLOCKING

C

OUTB

TO LOAD B

C

OUTA

OUTA

FLAGB(A)

ONB

CONTROL

LOGIC B

THERMAL

PROTECTION B

CURRENT

LIMIT B

REVERSE
CURRENT

BLOCKING

OUTB

FLAGB(B)

GND

Figure 4. Block Diagram

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com

FPF2300/02/03 • Rev. 1.1.3 2

Pin Configuration

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

GND

ONA

ONB

FLAGB(A)

1

IN

2

3

4

SO8

8

OUTA

7

OUTB

6

FLAGB(B)

5

FLAGB(A)

FLAGB(B)

8

OUTA

7

9

63

5

MLP 3X3mm 8-Lead Bottom View

Figure 5. Pin Configurations

Pin Description

Pin # Name Function

1 GND Ground

2 IN Supply Input: Input to the power switch and the supply voltage for the IC.

3 ONA ON / OFF control input of power switch A. Active LOW

4 ONB ON / OFF control input of power switch B. Active LOW

5FLAGB(B)

6 OUTB Switch Output: Output of the power switch B

7 OUTA Switch Output: Output of the power switch A

8FLAGB(A)

9(MLP) Thermal Pad

Fault Output B, Active LO, open drain output which indicates an over supply, UVLO
and thermal shutdown.

Fault Output A, Active LO, open drain output which indicates an over supply, UVLO
and thermal shutdown.

IC Substrate, which can be connected to GND for better thermal performance. Do not
connect to other pins.

GND

1

2

IN

ONAOUTB

4

ONB

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com

FPF2300/02/03 • Rev. 1.1.3 3

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera­ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi­tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only

Symbol Parameter Min. Max. Unit

IN, OUTA, OUTB, ONA, ONB, FLAGB(A), FLAGB(B) to GND -0.3 6.0 V

P

T

STG

Θ

JA

ESD Electrostatic Discharge Protection

Notes:

1. Two-layer PCB of 2s0p from JEDEC STD 51-3.

2. Four-layer PBD of 2s0p from JEDEC STD 51-7.

3. Soldered thermal pad on a two-layer PCB without vias based on JEDEC STD 51-3.

4. Soldered thermal pad on a four-layer with two vias connected with GND plane base on JEDEC STD 51-5, 7.

Power Dissipation

D

Storage Temperature -65 +150 °C

Thermal Resistance, Junction-to-Ambient

.

SO8

MLP

SO8

MLP

Human Body Model, JESD22-A114 4000

Charged Device Model, JESD22-C101 2000

0.8

1.4

0.6

2.2

158

92

216

57

(1)

(2)

(3)

(4)

(1)

(2)

(3)

(4)

W

°C/W

V

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

Recommended Operating Range

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.

Symbol Parameter Min. Max. Unit

IN Supply Input 1.8 5.5 V

T

Ambient Operating Temperature -40 +85 °C

A

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com

FPF2300/02/03 • Rev. 1.1.3 4

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

V

IN

I

Q

I

SD

R

ON

V

IH

V

IL

I

ON

Protections

I

LIM

TSD Thermal Shutdown

V

UVLO

V

UVLO_HYS

Dynamic

t

ON

t

OFF

t

R

t

BLANK

t

RSTRT_BLANK

t

RSRT

t

CLR

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.

Operating Voltage 1.8 5.5 V

Quiescent Current IN = 5.5V, V

V

= V

IN Shutdown Current

On Resistance

ON Input Logic High Voltage (ON)

ON Input Logic Low Voltage

ONA

OUTA = OUTB = Short to GND,

IN = 5.5V, I

IN = 5.5V, I

IN = 1.8V 0.8

IN = 5.5V 1.4

IN = 1.8V 0.5

IN = 5.5V 0.9

= V

ONA

= 5.5V, IN = 5.5V

ONB

= 200mA, TA = 25°C 75 140

OUT

= 200mA, TA = -40°C to 85°C 90

OUT

ONB

= 0V, I

= 0mA 52.5 94.5 μA

OUT

3 μA

mΩ

V

V

ON Input Leakage VON = IN or GND -1 1 μA

FLAGB Output Logic Low Voltage

FLAGB Output High Leakage Current IN = V

IN = 5.5V, I

IN = 1.8V, I

ON

Current Limit IN = 3.3V, V

= 1mA 0.1 0.2

SINK

= 1mA 0.15 0.30

SINK

= 5V 1 μA

OUTA

= V

= 3V, TA = 25°C 1.1 1.3 1.5 A

OUTB

V

Shutdown Threshold 140

°CReturn from Shutdown 130

Hysteresis 10

Under-Voltage Shutdown IN Increasing 1.55 1.65 1.75 V

Under-Voltage Shutdown Hysteresis 50 mV

Turn-On Time RL = 500Ω, CL = 0.1μF 113.5 μs

Turn-Off Time RL = 500Ω 6 μs

OUTA, OUTB Rise Time RL = 500Ω, CL = 0.1μF13.5μs

Over-Current Blanking Time FPF2300, FPF2302 5 10 20 ms

Startup FLAGB Blanking Time FPF2303

(5)

51020ms

Auto-Restart Time FPF2300 504 ms

Current Limit Response Time IN = 3.3V, Moderate Over-Current Condition 20 μs

OUT

10%

90%

t

R

90%

10%

t

F

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

ON

OUT

50% 50%

10%

t

DON

t

ON

= tR + t

DON

t

OFF

= tF + t

t

DOFF

90%

DOFF

Figure 6. Timing Diagram

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com

FPF2300/02/03 • Rev. 1.1.3 5

Typical Characteristics

5

)

SUPPLY

CURRENT

(

A)

85°C

C

5

5

)

V

5

5

)

5

A

70.00
ONA = ONB = 0V

60.00

u

50.00

40.00

30.00

20.00

10.00

0.00

1.8 2. 2 2.5 2. 9 3.3 3. 7 4.0 4. 4 4.8 5.1 5.

SUPPLY VOLTAGE (V

25°C

-40°

Figure 7. Quiescent Current vs. Supply Voltage Figure 8. Quiescent Current vs. Temperature

70.00
ONA = ONB = 0V

60.00

50.00

IN = 5.5V

40.00

IN = 3.3V

IN = 1.8V

CURRENT (uA)

Q

I

30.00

20.00

10.00

0.00

-40 -15 10 35 60 8

TJ, JUNCTI ON TEMPERATURE ( °C)

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

5.00

4.50

IN = ONA = ONB = 5.5V
OUT = 0 V

4.00

3.50

3.00

2.50

2.00

1.50

1.00

IN SHUTDOWN CURRENT (uA)

0.50

0.00

-40 -15 10 35 60 8

TJ, J UNCTION TEMPERATURE (° C)

Figure 9. IN Shutdown Current vs. Temperature

160

150

140

130

120

110

100

90

80

ON RESISTANCE (mOhms)

70

R

A

ON

60

1.82.22.52.93.33.74.04.44.85.15.

SUPPLY VOLTAGE (V

R

B

ON

ONA = ONB = 0
I

= 200mA

OUT

T

= 25°C

A

160

150

140

ONA = ONB = 0V
I

= 200mA

OUT

T

= 25°C

A

130

120

110

100

90

80

ON RESISTANCE (mOhms)

R

R

B

ON

A

ON

70

60

1.82.22.52.93.33.74.04.44.85.15.

SUPPLY VOLTAGE (V

Figure 10. RON vs. Supply Voltage (MLP)

100

IN = 5.5V

95

I

= 200mA

OUT

ONA = ONB = 0V

90

85

80

75

70

65

60

ON RESISTANCE ( mOhm)

55

50

-40 -15 10 35 60 8

TJ, JUNCTION TEMPERATURE (°C)

R

B

ON

R

ON

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com

Figure 11. RON vs. Temperature (SO8) Figure 12. R

vs. Temperature (MLP)

ON

FPF2300/02/03 • Rev. 1.1.3 6