FPF2146 Fairchild Semiconductor, FPF2146 Datasheet

IC LOAD SWITCH REV CURR BK 6-MLP

FPF2146

Manufacturer Part Number
FPF2146
Description
IC LOAD SWITCH REV CURR BK 6-MLP
Manufacturer
Fairchild Semiconductor
Type
High Side Switchr
Datasheet

Specifications of FPF2146

Number Of Outputs
1
Rds (on)
160 mOhm
Internal Switch(s)
Yes
Current Limit
400mA
Voltage - Input
1.8 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
6-MLP
Input Voltage
1.8 to 5.5V
Power Switch On Resistance
120mOhm
Output Current
400mA
Mounting
Surface Mount
Package Type
MLP EP
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Pin Count
6
Power Dissipation
1.2W
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FPF2146TR
©2007 Fairchild Semiconductor Corporation
FPF2140/42/43/44/46/47 Rev. D
FPF2140/42/43/44/46/47
Full Function Load Switch with Reverse Current Blocking
Features
Applications
Ordering Information
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
200mA and 400mA Current Limit Options
Undervoltage Lockout
Thermal Shutdown
<2µA Shutdown Current
Auto Restart
Fast Current limit Response Time
Fault Blanking
Reverse Current Blocking
Power Good Function
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
FPF2140
FPF2142
FPF2143
FPF2144
FPF2146
FPF2147
Part
Current Limit
200/300/400
200/300/400
200/300/400
400/600/800
400/600/800
400/600/800
BOTTOM
[mA]
Pin 1
Blanking Time
Current Limit
15/30/60
15/30/60
15/30/60
15/30/60
[ms]
0
0
1
General Description
The FPF2140/42/43/44/46/47 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 part
operates in a constant-current mode to prohibit excessive
currents from causing damage. For the FPF2140/42/44/46, if
the constant current condition still persists after 30ms, the part
will shut off the switch and pull the fault signal pin (FLAGB) low.
The FPF2140/44 have an auto-restart feature which will turn the
switch on again after 450ms if the ON pin is still active. The
FPF2142/46 do not have this auto-restart feature so the switch
will remain off until the ON pin is cycled. For the FPF2143/47, a
current limit condition will immediately pull the fault signal pin
low and the part will remain in the constant-current mode until
the switch current falls below the current limit. The minimum
current limit is 200mA for the FPF2140/42/43 while that for the
FPF2144/46/47 is 400mA.
These parts are available in a space-saving 6 pin 2X2 MLP
package.
Auto-Restart
225/450/900
225/450/900
Time
[ms]
TOP
NA
NA
NA
NA
October 2007
Activity
ON Pin
Active HI
Active HI
Active HI
Active HI
Active HI
Active HI
www.fairchildsemi.com
tm

Related parts for FPF2146

FPF2146 Summary of contents

Page 1

... Part FPF2140 200/300/400 FPF2142 200/300/400 FPF2143 200/300/400 FPF2144 400/600/800 FPF2146 400/600/800 FPF2147 400/600/800 ©2007 Fairchild Semiconductor Corporation FPF2140/42/43/44/46/47 Rev. D General Description The FPF2140/42/43/44/46/ series of load switches which provides full protection to systems and loads which may encounter large current conditions. These devices contain a 0.12Ω ...

Page 2

Typical Application Circuit OFF ON Functional Block Diagram V IN UVLO ON THERMAL SHUTDOWN FLAGB FPF2140/42/43/44/46/47 Rev OUT FPF2140/2/3/4/6/7 FLAGB PGOOD ON GND CONTROL LOGIC CURRENT LIMIT 2 TO LOAD REVERSE CURRENT BLOCKING V OUT PGOOD ...

Page 3

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

Page 4

... IN SINK V = 1.8V 10mA IN SINK 0V 5.5V, ON OUT V = short to GND IN FPF2140, FPF2142, FPF2143 V = 3.3V LIM V = 3.0V FPF2144, FPF2146, OUT FPF2147 Shutdown Threshold T increasing J Return from Shutdown Hysteresis V V Increasing UVLO 500Ω 0.1µ 500Ω 0.1µ 500Ω 0.1µF ...

Page 5

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

Page 6

Typical Characteristics 350 300 250 200 150 100 OUT Figure 7. Current Limit vs. Output Voltage 320 FPF2140 / 315 310 305 300 295 290 -65 -40 ...

Page 7

Typical Characteristics 33 32.5 32 31.5 31 30.5 30 29.5 -40 - JUNCTION TEMPERATURE (°C) J Figure 13. T vs. Temperature BLANK V ON 2V/DIV I OUT 10mA/DIV V OUT 2V/DIV 100µs/DIV Figure 15. T Response DR ...

Page 8

Typical Characteristics V IN 2V/DIV V ON 2V/DIV I OUT 500mA/DIV V OUT 2V/DIV 50µs/DIV Figure 19. Current Limit Response Time (Output is loaded by 2.2Ω 5V/DIV V ON 5V/DIV V OUT 5V/DIV PGOOD 5V/DIV 10µs/DIV Figure ...

Page 9

Description of Operation The FPF2140/42/43/44/46/47 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 a controller capable ...

Page 10

Application Information Typical Application Typical value = 100KΩ Battery 1.8V-5.5V OFF 0.1µF 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 ...

Page 11

Application Notes V IN1 OFF ON V IN2 TP Power good function in sequential startup. No battery is loaded to the output Power Good FPF214X family has a "Power Good" feature. PGOOD pin is an open-drain MOSFET which asserts high ...

Page 12

Dimensional Outline and Pad Layout FPF2140/42/43/44/46/47 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™ Current Transfer Logic™ ® ...

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