FPF2116_08 FAIRCHILD [Fairchild Semiconductor], FPF2116_08 Datasheet

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FPF2116_08

Manufacturer Part Number
FPF2116_08
Description
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
©2008 Fairchild Semiconductor Corporation
FPF2116 Rev. D
FPF2116
IntelliMAX™ Advanced Load Management Products
Features
Applications
Typical Application Circuit
Ordering Information
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
200mA 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
3µs to Moderate Over Currents
20ns to Hard Shorts
FPF2116
Part
Current Limit
[mA]
OFF ON
200
Blanking Time
Current Limit
[ms]
V
ON
30
IN
FPF2116
1
GND
General Description
The FPF2116 is a load switch which provides full protection to
systems and loads which may encounter large current
conditions. This device contains a 0.125Ω 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.
The 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 part
operates in a constant-current mode to prohibit excessive
currents from causing damage. If the constant current condition
still persists after 30ms, the part will shut off the switch and pull
the fault signal pin (FLAGB) low. An auto-restart feature will turn
the switch on again after 480ms if the ON pin is still active. The
minimum current limit is 200mA.
The part is available in a space-saving 5 pin SOT23 package.
Auto-Restart
FLAGB
V
OUT
Time
[ms]
480
Activity
ON Pin
Active HI
TO LOAD
August 2008
Top Mark
www.fairchildsemi.com
2116
tm

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FPF2116_08 Summary of contents

Page 1

FPF2116 IntelliMAX™ Advanced Load Management Products Features 1.8 to 5.5V Input Voltage Range Controlled Turn-On 200mA Current Limit Undervoltage Lockout Thermal Shutdown <2µA Shutdown Current Auto Restart Fast Current limit Response Time 3µs to Moderate Over Currents 20ns to Hard ...

Page 2

Functional Block Diagram V IN UVLO ON THERMAL SHUTDOWN Pin Configuration Pin Description Pin Name GND FLAGB 5 V OUT FPF2116 Rev. D CONTROL LOGIC CURRENT LIMIT OUT ...

Page 3

Absolute Maximum Ratings Parameter ON, FLAGB to GND IN OUT Power Dissipation @ T = 25°C (note 1) A Operating Junction Temperature Storage Temperature Thermal Resistance, Junction to Ambient Electrostatic Discharge Protection Recommended Operating Range Parameter ...

Page 4

Electrical Characteristics Cont 1.8 to 5.5V -40 to +85°C unless otherwise noted. Typical values are Parameter Dynamic Turn On Time Turn Off Time V Rise Time OUT V Fall Time OUT Over ...

Page 5

Typical Characteristics 120 110 100 1.5 2 2.5 3 3.5 SUPPLY VOLTAGE (V) Figure 1. Quiescent Current vs. Input Voltage 2500 2000 1500 1000 V = 3.3V IN 500 0 -40 ...

Page 6

Typical Characteristics 500 400 300 200 100 0.3 0.6 0.9 1.2 1 OUT Figure 7. Current Limit vs. Output Voltage 200 180 160 V = 1.8V IN 140 V = 3.3V IN 120 100 80 60 -40 ...

Page 7

Typical Characteristics -40 - JUNCTION TEMPERATURE ( J Figure 13. T BLANK V ON 2V/DIV V OUT 2V/DIV I OUT 200mA/DIV V FLAGB 2V/DIV 10ms/DIV Figure 15. T BLANK R = 500Ω, ...

Page 8

Typical Characteristics 10µ DIV C = 0.1µF OUT I OUT 5A/DIV V OUT 2V/DIV 20µs/DIV Figure 19. Short Circuit Response Time (Output Shorted to GND 2V/DIV V ON 2V/DIV I OUT ...

Page 9

Description of Operation The FPF2116 is a current limited switch that protects systems and loads which can be damaged or disrupted by the application of high currents. The core of the device is a 0.125Ω P-channel MOSFET and a controller ...

Page 10

Application Information Typical Application OFF ON Battery 5. 4.7µF Input Capacitor To limit the voltage drop on the input supply caused by transient in-rush currents when the switch turns-on into a discharged load capacitor or a short-circuit, a ...

Page 11

Dimensional Outline and Pad Layout FPF2116 Rev www.fairchildsemi.com ...

Page 12

TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidianries, and is not intended exhaustive list of all such trademarks. Build it Now™ CorePLUS™ CorePOWER™ CROSSVOLT™ CTL™ Current ...

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