View FPF200007_4233995.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
May 2007
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Features
1.8 to 5.5V Input Voltage Range Controlled Turn-On 50mA and 100mA Current Limit Options Undervoltage Lockout Thermal Shutdown <1A Shutdown Current Auto restart Fast Current limit Response Time 3s to Moderate Over Currents 20ns to Hard Shorts Fault Blanking RoHS Compliant
tm
General Description
The FPF2000 through FPF2007 is a family of load switches which provide full protection to systems and loads which may encounter large current conditions. These devices contain a 0.7 currentlimited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V. 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 overcurrent 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 FPF2000-FPF2002 and FPF2004FPF2006, 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 FPF2000, FPF2001, FPF2004 and FPF2005, have an auto-restart feature which will turn the switch on again after 80ms if the ON pin is still active. The FPF2002 and FPF2006 do not have this auto-restart feature so the switch will remain off until the ON pin is cycled. For the FPF2003 and FPF2007, 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. For the FPF2000 through FPF2003, the minimum current limit is 50mA while that for the FPF2004 through FPF2007 is 100mA. These parts are available in a space-saving 5 pin SC-70 package.
Applications
PDAs Cell Phones GPS Devices MP3 Players Digital Cameras Peripheral Ports Hot Swap Supplies
Ordering Information
Part
FPF2000 FPF2001 FPF2002 FPF2003 FPF2004 FPF2005 FPF2006 FPF2007
Current Limit [mA]
50 50 50 50 100 100 100 100
Current Limit Blanking Time [ms]
10 10 10 0 10 10 10 0
Auto-Restart Time [ms]
80 80 NA NA 80 80 NA NA
ON Pin Activity
Active HI Active LO Active HI Active HI Active HI Active LO Active HI Active HI
Top Mark
200 201 202 203 204 205 206 207
(c)2007 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
FPF2000-FPF2007 Rev. E
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Typical Application Circuit
TO LOAD VIN VOUT
FPF2000 - FPF2007
OFF ON ON GND FLAGB
Functional Block Diagram
VIN
UVLO
ON
CONTROL LOGIC
CURRENT LIMIT THERMAL SHUTDOWN VOUT FLAGB
GND
Pin Configuration
VOUT 1 GND FLAGB 2 3 SC70-5 4 ON 5 VIN
Pin Description
Pin
1 2 3 4 5
Name
VOUT GND FLAGB ON VIN Ground
Function
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. On Control Input Supply Input: Input to the power switch and the supply voltage for the IC
FPF2000-FPF2007 Rev. E
2
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Absolute Maximum Ratings
Parameter
VIN, VOUT, ON, FLAGB to GND Power Dissipation @ TA = 25C (note 1) Operating Junction Temperature Storage Temperature Thermal Resistance, Junction to Ambient Electrostatic Discharge Protection HBM MM 4000 400 -40 -65
Min
-0.3
Max
6 250 125 150 400
Unit
V mW C C C/W V V
Recommended Operating Range
Parameter
VIN Ambient Operating Temperature, TA
Min
1.8 -40
Max
5.5 85
Unit
V C
Electrical Characteristics
VIN = 1.8 to 5.5V, TA = -40 to +85C unless otherwise noted. Typical values are at VIN = 3.3V and TA = 25C.
Parameter
Basic Operation Operating Voltage Quiescent Current Shutdown Current Latch-Off Current (note 2) On-Resistance ON Input Logic High Voltage ON Input Logic Low Voltage ON Input Leakage
Symbol
VIN IQ ISHDN ILATCHOFF RON VIH VIL
Conditions
Min
1.8
Typ
Max
5.5
Units
V A A A
IOUT = 0mA VON active
VIN = 1.8 to 3.3V VIN = 3.3 to 5.5V
60 100 1 40 0.7 0.85 0.8 1.5 0.5 0.9 1 1 10 0.1 0.1 100 0.2 0.3 1 1
VON = VIN, after an overcurrent fault TA = 25C, IOUT = 20mA TA = -40 to +85C, IOUT = 20mA VIN = 1.8V VIN = 5.5V VIN = 1.8V VIN = 5.5V VON = VIN or GND VON = 0V, VOUT = 0V @ VIN = 5.5V, TA = 85C VON = 0V, VOUT = 0V @ VIN = 3.3V, TA = 25C VIN = 5V, ISINK = 10mA VIN = 1.8V, ISINK = 10mA VIN = 5V, Switch on FPF2000, FPF2001, FPF2002, FPF2003 FPF2004, FPF2005, FPF2006, FPF2007
V V A A nA V A
Off Switch Leakage
ISWOFF
FLAGB Output Logic Low Voltage FLAGB Output High Leakage Current Protections
Current Limit
ILIM
VIN = 3.3V, VOUT = 3.0V
50 100
75 150 140 130 10
100 mA 200
Shutdown Threshold Thermal Shutdown Return from Shutdown Hysteresis
C
FPF2000-FPF2007 Rev. E
3
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Electrical Characteristics Cont.
VIN = 1.8 to 5.5V, TA = -40 to +85C unless otherwise noted. Typical values are at VIN = 3.3V and TA = 25C.
Parameter
Protections Under Voltage Shutdown Under Voltage Shutdown Hysteresis Dynamic Turn on time Turn off time VOUT Rise Time VOUT Fall Time Over Current Blanking Time Auto-Restart Time
Symbol
UVLO
Conditions
VIN Increasing
Min
1.5
Typ
1.6 50
Max
1.7
Units
V mV s s s s
tON tOFF tR tF tBLANK tRSTRT
RL = 500, CL = 0.1F RL = 500, CL = 0.1F RL = 500, CL = 0.1F RL = 500, CL = 0.1F FPF2000, FPF2001, FPF2002, FPF2004, FPF2005, FPF2006 FPF2000, FPF2001, FPF2004, FPF2005 VIN = VON = 3.3V. Moderate Over-Current Condition. VIN = VON = 3.3V. Hard Short. 5 40
50 0.5 10 0.1 10 80 3 20 20 160
ms ms s ns
Short Circuit Response Time
Note 1: Package power dissipation on 1 square inch pad, 2 oz. copper board. Note 2: Applicable only to FPF2002 and FPF2006. Watchful current does not include current flowing into FLAGB.
FPF2000-FPF2007 Rev. E
4
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Typical Characteristics
75 VON = VIN QUIESCENT CURRENT (uA)
QUIESCENT CURRENT (uA)
90 85 80 75 70 65 60 55 50 45
VON = VIN
70
65
VIN = 5.5V
VIN = 3.3V
60
VIN = 1.8V
55
50 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 SUPPLY VOLTAGE (V)
40 -40
-15
10
35
60
85
TJ, JUNCTION TEMPERATURE (oC)
Figure 1. Quiescent Current vs. Input Voltage
Figure 2. Quiescent Current vs. Temperature
35
35
I_SHDN SWITCH-OFF CURRENT (nA) SHUTDOWN CURRENT (nA)
30 25 20 15 30 25 20 15 10 5 0 -40
VIN = 5V
10 5 0 -40
VIN = 5V VIN = 3.3V
VIN = 3.3V
-15
10
35
60
85
-15
10
35
60
85
TJ, JUNCTION TEMPERATURE (oC)
TJ, JUNCTION TEMPERATURE (oC)
Figure 3. ISHUTDOWN Current vs. Temperature
Figure 4. ISWITCH-OFF Current vs. Temperature
52
1.5
VIN = 3.3V
LATCH-OFF CURRENT (uA)
48 44 40 36 32 28 -40
1.25
ON THRESHOLD (V)
FPF2000, 2002, 2003, 2004, 2006, 2007 FPF2001, 2005
1 0.75 0.5 0.25 0
-15
10
35
60
85
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
TJ, JUNCTION TEMPERATURE (oC)
VIN , INPUT VOLTAGE (V)
Figure 5. ILATCHOFF vs. Temperature
Figure 6. VIH vs. VIN
FPF2000-FPF2007 Rev. E
5
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Typical Characteristics
160 140 OUTPUT CURRENT (mA) FPF2004, 2005, 2006, 2007
180 160
I_LIMIT
CURRENT LIMIT (mA)
120 100 80 60 FPF2000, 2001, 2002, 2003 40 20 0 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 3.3 VIN - VOUT (V)
140 120 100 80 60 40 20 0 -40 -15
FPF2004, 2005, 2006, 2007
FPF2000, 2001, 2002, 2003
10
35
o
60
85
TJ, JUNCTION TEMPERATURE ( C)
Figure 7. Current Limit vs. Output Voltage
Figure 8. Current Limit vs. Temperature
1.0 SWITCH RESISTANCE (Ohms)
1.1 SWITCH RESISTANCE (Ohms) 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 -40 VIN = 5V VIN = 3.6V VIN = 1.8V
0.9 0.8 0.7 0.6 0.5 0.4 0.3 1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-15
10
35
60
85
VIN, INPUT VOLTAGE (V)
TJ, JUNCTION TEMPERATURE (oC)
Figure 9. R(ON) vs. VIN
Figure 10. R(ON) vs. Temperature
100
ILOAD = 10mA VCC = 3.3V TON
100
ILOAD = 10mA VCC = 3.3V TURN-RISE/FALL TIMES (uS) TRise
TURN-ON/OFF TIMES (uS)
10
10
1
TFall
1
TOFF
0.1
0.1 -40
-15
10
35
60
85
0.01 -40
-15
10
35
60
85
TJ, JUNCTION TEMPERATURE (oC)
TJ, JUNCTION TEMPERATURE (oC)
Figure 11. TON/TOff vs. Temperature
Figure 12. TRISE/TFALL vs. Temperature
FPF2000-FPF2007 Rev. E
6
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Typical Characteristics
12 FLAG-BLANKING TIME (mS)
100
RESTART TIME (mS)
11
80
10
60
9
8 -40
-15
10
35
60
85
40 -40
-15
10
35
o
60
85
TJ, JUNCTION TEMPERATURE (oC)
TJ, JUNCTION TEMPERATURE ( C)
Figure 13. TBLANK vs. Temperature
Figure 14. TRESTART vs. Temperature
VDRV3 2V/DIV VOUT 2V/DIV IOUT 50mA/DIV VFLAGB 2V/DIV 5mS/DIV Figure 15. TBLANK Response
VDRV3 2V/DIV VOUT 2V/DIV IOUT 50mA/DIV VFLAGB 2V/DIV 10mS/DIV Figure 16. TRESTART Response
RL = 500, CL = 0.1F VON 2V/DIV IOUT 10mA/DIV
RL = 500, CL = 0.1F
VON 2V/DIV IOUT 10mA/DIV
50S/DIV Figure 17. TON Response
100nS/DIV Figure 18. TOFF Response
FPF2000-FPF2007 Rev. E
7
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Typical Characteristics
VIN 2V / DIV V = 10F CIN = VON IN COUT = 1F
CIN = 10F COUT = 1F VIN/VON 2V/DIV IOUT 200mA/DIV
IOUT 2A/DIV VOUT 2V/DIV 20S/DIV Figure 19. Short Circuit Response Time (Output Shorted to GND)
20S/DIV Figure 20. Current Limit Response (Switch power up to hard short)
VIN 2V/DIV VON 2V/DIV IOUT 100mA/DIV VOUT
(SHORTED TO GND)
CIN = 10F COUT = 1F
20S/DIV Figure 21. Current Limit Response Time Note 3: VDRV signal forces the device to go into overcurrent condition.
FPF2000-FPF2007 Rev. E
8
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Description of Operation
The FPF2000-FPF2007 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 0.7 P-channel MOSFET and a controller capable of functioning over a wide input operating range of 1.8-5.5V. The controller protects against system malfunctions through current limiting, undervoltage lockout and thermal shutdown. The current limit is preset for either 50mA or 100mA.
Current Limiting
The current limit ensures that the current through the switch doesn't exceed a maximum value while not limiting at less than a minimum value. For the FPF2000-FPF2003 the minimum current is 50mA and the maximum current is 100mA and for the FPF2004-FPF2007 the minimum current is 100mA and the maximum current is 200mA. The FPF2000-FPF2002 and the FPF2004-FPF2006, have a blanking time of 10ms, nominally, during which the switch will act as a constant current source. At the end of the blanking time, the switch will be turned-off and the FLAGB pin will activate to indicate that current limiting has occurred. The FPF2003 and FPF2007 have no current limit blanking period so immediately upon a current limit condition FLAGB is activated. These parts will remain in a constant current state until the ON pin is deactivated or the thermal shutdown turns-off the switch.
On/Off Control
The ON pin controls the state of the switch. Active HI and LO versions are available. Refer to the Ordering Information for details. Activating ON continuously holds the switch in the on state so long as there is no fault. For all versions, an undervoltage on VIN or a junction temperature in excess of 150C overrides the ON control to turn off the switch. In addition, excessive currents will cause the switch to turn off in FPF2000FPF2002 and FPF2004-FPF2007. The FPF2000, FPF2001, FPF2004 and FPF2005 have an Auto-Restart feature which will automatically turn the switch on again after 80ms. For the FPF2002 and FPF2006, the ON pin must be toggled to turn-on the switch again. The FPF2003 and FPF2007 do not turn off in response to a over current condition but instead remain operating in a constant current mode so long as ON is active and the thermal shutdown or under-voltage lockout have not activated.
Reverse Voltage
If the voltage at the VOUT pin is larger than the VIN pin, large currents may flow and can cause permanent damage to the device. FPF2000-FPF2007 is designed to control current flow from VIN to VOUT.
Under-Voltage Lockout
The under-voltage lockout turns-off the switch if the input voltage drops below the under-voltage lockout threshold. With the ON pin active the input voltage rising above the undervoltage lockout threshold will cause a controlled turn-on of the switch which limits current over-shoots.
Fault Reporting
Upon the detection of an over-current, an input under-voltage, or an over-temperature condition, the FLAGB signals the fault mode by activating LO. For the FPF2000-FPF2002 and FPF2004-FPF2006, the FLAGB goes LO at the end of the blanking time while FLAGB goes LO immediately for the FPF2003 and FPF2007. FLAGB remains LO through the AutoRestart Time for the FPF2000, FPF2001 FPF2004 and FPF2005. For the FPF2002 and FPF2006, FLAGB is latched LO and ON must be toggled to release it. With the FPF2003 and FPF2007, FLAGB is LO during the faults and immediately returns HI at the end of the fault condition. FLAGB is an opendrain MOSFET which requires a pull-up resistor between VIN and FLAGB. During shutdown, the pull-down on FLAGB is disabled to reduce current draw from the supply.
Thermal Shutdown
The thermal shutdown protects the die from internally or externally generated excessive temperatures. During an overtemperature condition the FLAGB is activated and the switch is turned-off. The switch automatically turns-on again if temperature of the die drops below the threshold temperature.
FPF2000-FPF2007 Rev. E
9
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Application Information
Typical Application
VIN Battery 1.8V-5.5V
VOUT
LOAD R1 = 100K R2 = 499 C2 = 0.1F
FPF2000 - FPF2007
OFF ON C1 = 10F ON GND FLAGB
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 capacitor needs to be placed between VIN and GND. A 0.1F ceramic capacitor, CIN, placed close to the pins is usually sufficient. Higher values of CIN can be used to further reduce the voltage drop. If the part goes into current limit the maximum power dissipation will occur when the output is shorted to ground. For the FPF2000, FPF2001, FPF2004 and FPF2005, the power dissipation will scale by the Auto-Restart Time, tRESTART, and the Over Current Blanking Time, tBLANK, so that the maximum power dissipated is,
Output Capacitor
A 0.1F capacitor COUT, should be placed between VOUT and GND. This capacitor will prevent parasitic board inductances from forcing VOUT below GND when the switch turns-off. For the FPF2000-FPF2002 and the FPF2004-FPF2006, the total output capacitance needs to be kept below a maximum value, COUT(max), to prevent the part from registering an over-current condition and turning-off the switch. The maximum output capacitance can be determined from the following formula,
t BLANK P ( max ) = -------------------------------------------------- x ( V IN ( max ) )xI LIM ( max ) = t RESTART + t BLANK 10 = ------------------- x 5.5 x 0.2 = 1.22mW 80 + 10
(3)
I LIM ( max ) x t BLANK ( min ) C OUT = ------------------------------------------------------------------V IN
(1)
Due to the integral body diode in the PMOS switch, a CIN greater than COUT is highly recommended. A COUT greater than CIN can cause VOUT to exceed VIN when the system supply is removed. This could result in current flow through the body diode from VOUT to VIN.
When using the FPF2002 and FPF2006 attention must be given to the manual resetting of the part. Continuously resetting the part at a high duty cycle when a short on the output is present can cause the temperature of the part to increase. The junction temperature will only be allowed to increase to the thermal shutdown threshold. Once this temperature has been reached, toggling ON will not turn-on the switch until the junction temperature drops. For the FPF2003 and FPF2007, a short on the output will cause the part to operate in a constant current state dissipating a worst case power as calculated in (3) until the thermal shutdown activates. It will then cycle in and out of thermal shutdown so long as the ON pin is active and the short is present.
Power Dissipation
During normal operation as a switch, the power dissipation is small and has little effect on the operating temperature of the part. The parts with the higher current limits will dissipate the most power and that will only be,
Board Layout
For best performance, all traces should be as short as possible. 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 VIN, VOUT and GND will help minimize parasitic electrical effects along with minimizing the case to ambient thermal impedance.
P = ( I LIM ) x R DS = ( 0.2 ) x 0.7 = 28mW
2
2
(2)
FPF2000-FPF2007 Rev. E
10
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAXTM Advanced Load Management Products
Dimensional Outline and Pad Layout
FPF2000-FPF2007 Rev. E
11
www.fairchildsemi.com
TRADEMARKS The following are registered and unregistered trademarks and service marks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx Build it NowTM CorePLUSTM CROSSVOLTTM CTLTM Current Transfer LogicTM (R) EcoSPARK FACT Quiet SeriesTM (R) FACT (R) FAST FastvCoreTM FPSTM (R) FRFET SM Global Power Resource Green FPSTM
(R)
Green FPSTM e-SeriesTM GTOTM i-LoTM IntelliMAXTM ISOPLANARTM MegaBuckTM MICROCOUPLERTM MicroFETTM MicroPakTM Motion-SPMTM (R) OPTOLOGIC (R) OPTOPLANAR PDP-SPMTM (R) Power220 (R) Power247
POWEREDGE Power-SPMTM (R) PowerTrench Programmable Active DroopTM (R) QFET QSTM QT OptoelectronicsTM Quiet SeriesTM RapidConfigureTM SMART STARTTM (R) SPM STEALTHTM SuperFETTM SuperSOTTM-3 SuperSOTTM-6
(R)
SuperSOTTM-8 SyncFETTM (R) The Power Franchise
TM
TinyBoostTM TinyBuckTM (R) TinyLogic TINYOPTOTM TinyPowerTM TinyPWMTM TinyWireTM SerDesTM (R) UHC UniFETTM VCXTM
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD'S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Preliminary Product Status Formative or In Design First Production Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only.
Rev. I29
No Identification Needed
Full Production
Obsolete
Not In Production
(c) 2007 Fairchild Semiconductor Corporation
www.fairchildsemi.com

▲Up To Search▲

Price & Availability of FPF200007

	To Download FPF200007 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .