FPF2163_07 FAIRCHILD [Fairchild Semiconductor], FPF2163_07 Datasheet

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FPF2163_07

Manufacturer Part Number
FPF2163_07
Description
Full Function Load Switch with Adjustable Current Limit
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
©2007 Fairchild Semiconductor Corporation
FPF2163/4/5 Rev. D
FPF2163/4/5
Full Function Load Switch with Adjustable Current Limit
Features
Applications
Ordering Information
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
0.15-1.5A Adjustable Current Limit
Undervoltage Lockout
Thermal Shutdown
<2µA Shutdown Current
Auto Restart
Fast Current limit Response Time
Fault Blanking
Reverse Current Blocking
RoHS Compliant
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Hot Swap Supplies
5µs to Moderate Over Currents
30ns to Hard Shorts
FPF2163
FPF2164
FPF2165
Part
Current Limit
150-1500
150-1500
150-1500
[mA]
BOTTOM
Blanking Time
Current Limit
15/30/60
15/30/60
[ms]
0
Pin 1
1
General Description
The FPF2163, FPF2164, and FPF2165 is a series of load
switches which provides full protection to systems and loads
which may encounter large current conditions. These devices
contain a 0.12Ω current-limited P-channel MOSFET which can
operate over an input voltage range of 1.8-5.5V. Internally,
current is prevented from flowing when the MOSFET is off and
the output voltage is higher than the input voltage. Switch
control is by a logic input (ON) capable of interfacing directly
with low voltage control signals. Each part contains thermal
shutdown protection which shuts off the switch to prevent
damage to the part when a continuous over-current condition
causes excessive heating.
When the switch current reaches the current limit, the parts
operate in a constant-current mode to prohibit excessive
currents from causing damage. For the FPF2163 and FPF2164,
if the constant current condition still persists after 30ms, these
parts will shut off the switch and pull the fault signal pin (FLAGB)
low. The FPF2163 has an auto-restart feature which will turn the
switch on again after 450ms if the ON pin is still active. The
FPF2164 does not have this auto-restart feature so the switch
will remain off until the ON pin is cycled. The FPF2165 will not
turn off after a current limit fault, but will rather remain in the
constant current mode indefinitely. The minimum current limit is
150mA.
These parts are available in a space-saving 6 pin 2X2 MLP
package.
Auto-Restart
225/450/900
Time
[ms]
NA
NA
TOP
Activity
ON Pin
Active HI
Active HI
Active HI
October 2007
www.fairchildsemi.com
Mark
Top
163
164
165
tm

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FPF2163_07 Summary of contents

Page 1

FPF2163/4/5 Full Function Load Switch with Adjustable Current Limit Features 1.8 to 5.5V Input Voltage Range Controlled Turn-On 0.15-1.5A Adjustable Current Limit Undervoltage Lockout Thermal Shutdown <2µA Shutdown Current Auto Restart Fast Current limit Response Time 5µs to Moderate Over ...

Page 2

Typical Application Circuit OFF ON Functional Block Diagram V IN UVLO ON THERMAL SHUTDOWN FPF2163/4/5 Rev OUT FPF2163/4/5 FLAGB ON ISET GND CONTROL LOGIC CURRENT LIMIT 2 TO LOAD REVERSE CURRENT BLOCKING V OUT ISET FLAGB ...

Page 3

Pin Configuration Pin Description Pin Name 1 ISET OUT 4 FLAGB 5, 7 GND 6 ON Absolute Maximum Ratings Parameter ON, FLAGB, ISET to GND IN OUT Power Dissipation Operating and ...

Page 4

Electrical Characteristics Cont 1.8 to 5.5V -40 to +85°C unless otherwise noted. Typical values are Parameter ON Input Logic Low Voltage ON Input Leakage V Shutdown Current IN FLAGB Output Logic Low ...

Page 5

Typical Characteristics 1.5 2 2.5 3 3.5 SUPPLY VOLTAGE (V) Figure 1. Quiescent Current vs. Input Voltage 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 1.5 2 2.5 3 3.5 ...

Page 6

Typical Characteristics 900 800 700 600 500 400 300 200 100 OUT Figure 7. Current Limit vs. Output Voltage 100 500 Ohms L C ...

Page 7

Typical Characteristics 2 V DRV 2V/DIV T V BLANK ON 2V/DIV I OUT 500mA/DIV V OUT 2V/DIV 20ms/DIV Figure 13. T BLANK V IN 2V/DIV V ON 2V/DIV I OUT 10mA/DIV V OUT 2V/DIV 100µs/DIV Figure 15. T Response DR ...

Page 8

Typical Characteristics 10µF IN 2V/DIV C = 0.1µF OUT R = 392Ω SET 3. 2V/DIV I OUT 500mA/DIV V OUT 2V/DIV 50µs/DIV Figure 19. Current Limit Response Time (Output is loaded ...

Page 9

Description of Operation The FPF2163, FPF2164, and FPF2165 are current limited switches that protect systems and loads which can be damaged or disrupted by the application of high currents. The core of each device is a 0.12Ω P-channel MOSFET and ...

Page 10

Application Information Typical Application Battery 1.8V-5.5V OFF 0.1µF Setting Current Limit The FPF2163, FPF2164, and FPF2165 have a current limit which is set with an external resistor connected between ISET and GND. This resistor is selected by ...

Page 11

This is more power than the package can dissipate, but the thermal shutdown of the part will activate to protect the part from damage due to excessive heating. When using the FPF2164, attention must be given to the manual resetting ...

Page 12

Dimensional Outline and Pad Layout FPF2163/4/5 Rev www.fairchildsemi.com ...

Page 13

TRADEMARKS The following are registered and unregistered trademarks and service marks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ® ACEx Build it Now™ CorePLUS™ CROSSVOLT™ CTL™ ...

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