FPF2172 Fairchild Semiconductor, FPF2172 Datasheet

IC LOAD MANAGEMENT ADV POWER33-6

FPF2172

Manufacturer Part Number
FPF2172
Description
IC LOAD MANAGEMENT ADV POWER33-6
Manufacturer
Fairchild Semiconductor
Series
IntelliMax™r
Type
High Side Switchr
Datasheet

Specifications of FPF2172

Number Of Outputs
1
Rds (on)
125 mOhm
Internal Switch(s)
Yes
Current Limit
200mA
Voltage - Input
1.8 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
6-MLP
Power Switch Family
FPF2172
Input Voltage
1.8 to 5.5V
Output Current
200mA
Mounting
Surface Mount
Package Type
MLP EP
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Pin Count
6
Power Dissipation
1.4W
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Maximum Power Dissipation
1400 mW
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FPF2172TR
©2008 Fairchild Semiconductor Corporation
FPF2172 Rev. I
FPF2172
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 Option
Undervoltage Lockout
Thermal Shutdown
<1µA Shutdown Current
Fast Current limit Response Time
Integrated very low V
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
FPF2172
Part
F
Schottky Diode for
Current Limit
[mA]
OFF ON
200
Blanking Time
Current Limit
[ms]
V
ON
10
IN
FPF2172
1
GND
General Description
The FPF2172 is a load switch which combines the functionality
of the IntelliMAX
voltage drop Schottky barrier rectifier. The integrated solution
provides full protection to systems and loads which may
encounter large current conditions in a very compact MLP 3x3
package. This device contain a 0.125Ω current-limited P-
channel MOSFET which can operate over an input voltage
range of 1.8-5.5V. The Schottky diode acts as a barrier so that
no reverse current can flow 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. If the constant current condition
still persists after 10ms, these parts will shut off the switch and
pull the fault signal pin (FLAGB) low. The switch will remain off
until the ON pin is cycled. The minimum current limit is 200mA.
These parts are available in a space-saving 6L MLP 3x3
package.
Auto-Restart
FLAGB
V
Time
[ms]
OUT
NA
TM
series load switch with a very low forward
Activity
ON Pin
Active HI
TO LOAD
August 2008
Top Mark
www.fairchildsemi.com
2172
tm

Related parts for FPF2172

FPF2172 Summary of contents

Page 1

... FPF2172 200 ©2008 Fairchild Semiconductor Corporation FPF2172 Rev. I General Description The FPF2172 is a load switch which combines the functionality TM of the IntelliMAX series load switch with a very low forward voltage drop Schottky barrier rectifier. The integrated solution provides full protection to systems and loads which may encounter large current conditions in a very compact MLP 3x3 package. This device contain a 0.125Ω ...

Page 2

... Pin Configuration Pin Description Pin Name OUT 4 FLAGB 5 GND 6 ON FPF2172 Rev. I CONTROL LOGIC CURRENT LIMIT 3x3 MLP BOTTOM VIEW Function Supply Input: Input to the power switch and the supply voltage for the IC No Connect Switch Output: Output of the power switch Fault Output: Active LO, open drain output which indicates an over current supply, under voltage or over temperature state ...

Page 3

... Reverse Block Leakage Current Reverse Breakdown Voltage Dropout Voltage ON Input Logic High Voltage (ON) ON Input Logic Low Voltage ON Input Leakage Off Switch Leakage FLAGB Output Logic Low Voltage FLAGB Output High Leakage Current FPF2172 Rev. I HBM MM Symbol Conditions 0mA V = 1.8 to 3.3V OUT IN ...

Page 4

... Turn on time Turn off time V Rise Time OUT V Fall Time OUT Over Current Blanking Time Short Circuit Response Time Note 1: Package power dissipation on 1 square inch pad, 2 oz. copper board. FPF2172 Rev. I Symbol Conditions 3.3V 2.0V LIM IN OUT Shutdown Threshold Return from Shutdown ...

Page 5

... SUPPLY VOLTAGE (V) Figure 1. Quiescent Current vs. Input Voltage 2 1.6 1.2 0.8 0.4 0 -40 - JUNCTION TEMPERATURE ( J Figure 3. I Current vs. Temperature SHUTDOWN 3. -40 - JUNCTION TEMPERATURE ( J Figure 5. Latchoff current vs. Temperature FPF2172 Rev. I 120 110 100 -40 0.6 0 5. Figure 4. I 1.8 1.6 1.4 1.2 1.0 ...

Page 6

... V , INPUT VOLTAGE (V) IN Figure 9. Drop Voltage vs. Input Voltage 3. OFF 10 -40 - JUNCTION TEMPERATURE ( J Figure 11 vs. Temperature ON Off FPF2172 Rev. I 400 V = 3.3V IN 350 300 250 200 -40 4 4.5 5 5.5 6 400 OUT 350 300 250 200 - 1000 V = 3.3V IN 100 ...

Page 7

... JUNCTION TEMPERATURE ( J Figure 13. T BLANK V ON 2V/DIV I OUT 10mA/DIV 100µs/DIV Figure 15 2V/DIV I OUT 5A/DIV V OUT 2V/DIV 20µs/DIV Figure 17. Short Circuit Response Time (Output Shorted to GND) FPF2172 Rev DRV 2V/DIV FLAGB 2V/DIV I OUT 200mA/DIV V OUT 2V/DIV vs. Temperature 10µF IN 2V/DIV C = 0.1µF ...

Page 8

... Description of Operation The FPF2172 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 capable of functioning over a wide input operating range of 1.8-5.5V paired with a low forward voltage drop Schottky diode for reverse blocking ...

Page 9

... To be most effective, the input and output capacitors should be placed close to the device to minimize the effects that parasitic trace inductances may have on normal and short-circuit operation. Using wide traces for V IN minimize parasitic electrical effects along with minimizing the case to ambient thermal impedance. FPF2172 Rev FPF2172 ON FLAGB GND 5 ...

Page 10

... Dimensional Outline and Pad Layout FPF2172 Rev. I Package MLP06H 10 www.fairchildsemi.com ...

Page 11

... Definition of Terms Datasheet Identification Product Status Advance Information Formative / In Design Preliminary First Production No Identification Needed Full Production Obsolete Not In Production FPF2172 Rev. I FPS™ PDP SPM™ F-PFS™ Power-SPM™ ® FRFET PowerTrench Global Power Resource SM Programmable Active Droop™ ...

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