Fairchild FPF2000 Intellimaxâ ¢ advanced load management product Datasheet

FPF2000-FPF2007
IntelliMAX™ Advanced Load Management Products
Features
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 0.7Ω current-limited 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 over-current condition
causes excessive heating.
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
50mA and 100mA Current Limit Options
Under voltage Lockout
Thermal Shutdown
<1uA Shutdown Current
Auto Restart
Fast Current limit Response Time
• 3us to Moderate Over Currents
• 20ns to Hard Shorts
■ Fault Blanking
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.
Applications
■
■
■
■
■
■
■
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Hot Swap Supplies
These parts are available in a space-saving 5 pin SC-70 package.
Functional Block Diagram
VIN
UVLO
ON
CONTROL
LOGIC
CURRENT
LIMIT
VOUT
THERMAL
SHUTDOWN
FLAGB
GND
©2004 Fairchild Semiconductor Corporation
FPF2000-FPF2007 Rev. C1
1
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
December 2004
VOUT 1
5 VIN
GND 2
4 ON
FLAGB 3
SC70-5
Pin Description
Pin
Name
Function
1
VOUT
Switch Output: Output of the power switch
2
GND
Ground
3
FLAGB
4
ON
On Control Input
5
VIN
Supply Input: Input to the power switch and the supply voltage for the IC
Fault Output: Active LO, open drain output which indicates an over current, supply under voltage
or over temperature state.
Absolute Maximum Ratings
Parameter
Min.
Max.
Units
VIN
-0.3
6
V
DC Input Voltage
-0.7
6
V
250
mW
85
°C
Power Dissipation for Single Operation @ 85°C
Operating Junction Temperature
-40
Storage Temperature
-65
Thermal Resistance, Junction to Ambient
Electrostatic Discharge Protection
150
°C
400
°C/W
HBM
4000
V
MM
400
V
Recommended Operating Range
Parameter
Min.
Max.
Units
VIN
1.8
5.5
V
Ambient Operating Temperature, TA
-40
85
°C
2
FPF2000-FPF2007 Rev. C1
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Pin Configuration
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
5.5
V
Basic Operation
Operating Voltage
VIN
Quiescent Current
IQ
1.8
IOUT = 0mA
VIN = 1.8 to 3.3V
60
VIN = 3.3 to 5.5V
Latch-Off Current
ILATCH
Shutdown Current
ISHDN
On-Resistance
ON Input Logic High Voltage
ON Input Logic Low Voltage
RON
VIH
VIL
ON Input Leakage
Off Switch Leakage
ISWOFF
FLAGB Output Logic Low Voltage
FLAGB Output High Leakage Current
µA
100
FPF2002, FPF2006
40
TA = 25°C, IOUT = 20mA
0.7
TA = -40 to +85°C, IOUT = 20mA
0.85
VIN = 1.8V
0.5
0.66
VIN = 5.5V
0.9
1.22
µA
1
µA
1
Ω
V
VIN = 1.8V
0.64
0.8
VIN = 5.5V
1.17
1.5
V
VON = VIN or GND
1
µA
VON = 0V, VOUT = 0V
1
µA
V
VIN = 5V, ISINK = 10mA
0.1
0.2
VIN = 1.8V, ISINK = 10mA
0.1
0.3
VIN = 5V, Switch on
1
µA
mA
Protections
Current Limit
ILIM
Thermal Shutdown
Under Voltage Shutdown
UVLO
VIN = 3.3V,
VOUT = 0V
FPF2000, FPF2001,
FPF2002, FPF2003
50
75
100
VIN = 3.3V,
VOUT = 0V
FPF2004, FPF2005,
FPF2006, FPF2007
100
150
200
TJ Increasing
140
°C
TJ Decreasing
130
°C
VIN Increasing
1.5
Under Voltage Shutdown Hysteresis
1.6
1.7
V
50
mV
Dynamic
tON
Ω, CL=0.1µF
50
µs
Turn off time
tOFF
Ω, CL=0.1µF
0.5
µs
Rise Time
tRISE
Ω, CL=0.1µF
10
µs
tFALL
Ω, CL=0.1µF
Turn on time
Fall Time
OVER Current Blanking Time
Auto-Restart Time
Short Circuit Response Time
µs
FPF2000, FPF2001, FPF2002,
FPF2004, FPF2005, FPF2006
5
10
20
ms
tRESTART
FPF2000, FPF2001, FPF2004,
FPF2005
40
80
160
ms
Vin = Von = 3.3V. Moderate
Over-current condition.
3
µs
Vin = Von = 3.3V. Hard Shorts.
20
nS
3
FPF2000-FPF2007 Rev. C1
0.1
tBLANK
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Electrical Characteristics
VIN = 1.8 to 5.5V, TA = -40 to +85°C unless otherwise noted. Typical values are at VIN = 3.3V and TA = 25°C.
75
90
VON = VIN
85
QUIESCENT CURRENT (µA)
QUIESCENT CURRENT (µA)
VON = VIN
70
65
60
55
80
75
70
VIN = 5.5V
65
VIN = 3.3V
60
55
VIN = 1.8V
50
45
40
50
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
-40
-15
SUPPLY VOLTAGE (V)
10
35
60
85
TJ, JUNCTION TEMPERATURE (°C)
Figure 1. Quiescent Current vs. Input Voltage
Figure 2. Quiescent Current vs. Temperature
160
35
140
30
SHUTDOWN CURRENT (nA)
OUTPUT CURRENT (mA)
ISHDN
FPF2004, 2005, 2006, 2007
120
100
80
60
FPF2000,2001 2002, 2003
40
25
20
15
VIN = 5V
10
VIN = 3.3V
5
20
0
0
0
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
-40
3.3
-15
Figure 3. Current Limit vs. Output Voltage
35
60
85
Figure 4. Shutdown Supply Current vs. Temperature
1.1
180
ILIMIT
1
SWITCH RESISTANCE (Ω)
160
CURRENT LIMIT (mA)
10
TJ, JUNCTION TEMPERATURE (°C)
VIN - VOUT (V)
140
FPF2004, 2005, 2006, 2007
120
VIN = 3.3V
100
80
60
FPF2000, 2001, 2002, 2003
40
20
VIN = 1.8V
0.9
0.8
VIN = 3.6V
0.7
0.6
VIN = 5V
0.5
0.4
0.3
0.2
0.1
0
-40
0
-15
10
35
60
85
-40
Figure 5. Current Limit vs. Temperature
10
35
60
85
Figure 6. Switch Resistance vs. Temperature
4
FPF2000-FPF2007 Rev. C1
-15
TJ, JUNCTION TEMPERATURE (°C)
TJ, JUNCTION TEMPERATURE (°C)
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Typical Characteristics
35
52
SWITCH-OFF CURRENT (nA)
LATCH-OFF CURRENT (µ A)
VIN = 3.3V
48
44
40
36
32
-15
10
35
60
25
20
15
VIN = 5V
10
VIN = 3.3V
5
0
-40
28
-40
30
85
-15
TJ, JUNCTION TEMPERATURE ( °C)
10
35
60
85
TJ, JUNCTION TEMPERATURE (°C)
Figure 7. Latch-Off Current vs. Temperature
Figure 8. Switch-Off Current vs. Temperature
1.5
VIN
1.25
ON THRESHOLD (V)
FPF2000, 2002, 2003, 2004, 2006, 2007
CIN = 10uF
COUT = 1uF
2V/Div
1
FPF2001, 2005
0.75
IOUT
0.5
2A/Div
0.25
VOUT
2V/Div
0
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
VIN VOLTAGE (V)
20uS/Div
Figure 9. ON Threshold vs. VIN
Figure 10. Short Circuit Response Time
(Output to GND)
100
VDRV
RESTART TIME (mS)
2V/Div
80
VOUT
2V/Div
IOUT
60
50mA/
Div
VFLAG
40
-40
-15
10
35
60
2V/Div
85
TJ JUNCTION TEMPERATURE (°C)
10mS/Div
Figure 11. Auto-Restart Time vs. Temperature
Figure 12. Auto-Restart Time Response
5
FPF2000-FPF2007 Rev. C1
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Typical Characteristics
100
TON
ILOAD = 10mA
VCC = 3.3V
ILOAD = 10mA
VCC = 3.3V
TURN-RISE/FALL TIMES (µS)
TURN-ON/OFF TIMES (µS)
100
10
1
TOFF
0.1
TRise
10
1
TFall
0.1
0.01
-40
-15
10
35
60
85
-40
TJ, JUNCTION TEMPERATURE (°C)
-15
10
35
60
85
TJ, JUNCTION TEMPERATURE (°C)
Figure 13. Ton/Toff vs. Temperature
Figure 14. Trise/Tfall vs. Temperature
VON
VON
2V / DIV
2V / DIV
IOUT
IOUT
10mA / DIV
10mA / DIV
50uS/DIV
100nS/DIV
Figure 15. Turn-On Response
Figure 16. Turn-Off Response
FLAG-BLANKING TIME (mS)
12
VDRV
2V / DIV
11
VOUT
10
2V / DIV
IOUT
9
2V / DIV
8
-40
-15
10
35
60
VFLAG
85
2V / DIV
TJ, JUNCTION TEMPERATURE (°C)
5mS/DIV
Figure 17. Blank Time vs. Temperature
Figure 18. Fault Blanking Response
6
FPF2000-FPF2007 Rev. C1
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Typical Characteristics
VIN
2V / DIV
CIN = 10uF
COUT = 1uF
CIN = 1uF
COUT = 1uF
VIN =VON
VON
2V / DIV
2V / DIV
IOUT
IOUT
100mA / DIV
100mA / DIV
VOUT
(Shorted to
GND)
20uS/DIV
20uS/DIV
Figure 19. Current-Limit Response Time
(Output to GND)
Figure 20. Current-Limit Response
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 0.7Ω
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.
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.
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 under-voltage on VIN or a junction temperature in excess of 150°C overrides the ON control to turn off the switch. In addition, excessive
currents will cause the switch to turn off in FPF2000-FPF2002
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.
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 under-voltage
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
Thermal Shutdown
The thermal shutdown protects the die from internally or externally generated excessive temperatures. During an over-temperature 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.
7
FPF2000-FPF2007 Rev. C1
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Typical Characteristics
Typical Application
To Load
VOUT
FPF2000-FPF2007
OFF ON
ON
GND
Input Capacitor
Over Current Blanking Time, tBLANK, so that the maximum
power dissipated is,
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 0.1µF ceramic capacitor, CIN, placed
close to the pins is usually sufficient. Higher values of CIN can
be used to further reduce the voltage drop.
t BLANK
P ( max ) = -------------------------------------------------- × V IN ( max ) × I LIM ( max ) =
t RESTART + t BLANK
10
= ------------------ × 5.5 × 0.2 = 1.22mW
80 + 10
Output Capacitor
(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.
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.
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,
2
2
P = ( I LIM ) × R DS = ( 0.2 ) × 0.7 = 28mW
(3)
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.
A 0.1µF 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,
I LIM ( max ) × t BLANK ( min )
C OUT = ------------------------------------------------------------------V IN
FLAGB
(2)
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
8
FPF2000-FPF2007 Rev. C1
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Application Information
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
Dimensional Outline and Pad Layout
SC70-5
SYMM
CL
0.65
2.00±0.20
A
.5 min
5
B
4
1.9
1.25±0.10
1
3
0.4 min
0.30
0.15
(0.25)
1.30
0.65
LAND PATTERN RECOMMENDATION
0.10 M A B
1.30
1.00
0.80
SEE DETAIL A
1.10
0.80
0.10 C
0.10
0.00
Seating Plane
C
(0.43)
2.10±0.10
GAGE PLANE
R0.10
0.25
0.10
0.20
0.45
0.30
0°-30°
DETAIL A
NOTES:
A. THIS PACKAGE CONFORMS TO EIAJ SC-88A, 1996.
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS DO NOT INCLUDE BURRS OR MOLD FLASH.
Ordering Information
Part Number
Minimum
Current Limit
[mA]
Current Limit
Blanking Time
[ms]
Auto-Restart
Time [ms]
FPF2000
50
10
80
Active HI
200
FPF2001
50
10
80
Active LO
201
FPF2002
50
10
NA
Active HI
202
FPF2003
50
0
NA
Active HI
203
FPF2004
100
10
80
Active HI
204
FPF2005
100
10
80
Active LO
205
FPF2006
100
10
NA
Active HI
206
FPF2007
100
0
NA
Active HI
207
9
FPF2000-FPF2007 Rev. C1
ON Pin Activity
Top Mark
www.fairchildsemi.com
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
FAST
ActiveArray™
FASTr™
Bottomless™ FPS™
CoolFET™
FRFET™
CROSSVOLT™ GlobalOptoisolator™
DOME™
GTO™
EcoSPARK™ HiSeC™
E2CMOS™
I2C™
EnSigna™
i-Lo™
FACT™
ImpliedDisconnect™
FACT Quiet Series™
IntelliMAX™
ISOPLANAR™
LittleFET™
MICROCOUPLER™
MicroFET™
MicroPak™
MICROWIRE™
MSX™
MSXPro™
OCX™
OCXPro™

Across the board. Around the world.™ OPTOLOGIC
OPTOPLANAR™
The Power Franchise
PACMAN™
Programmable Active Droop™
POP™
Power247™
PowerEdge™
PowerSaver™
PowerTrench
QFET
QS™
QT Optoelectronics™
Quiet Series™
RapidConfigure™
RapidConnect™
µSerDes™
SILENT SWITCHER
SMART START™
SPM™
Stealth™
SuperFET™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SyncFET™
TinyLogic
TINYOPTO™
TruTranslation™
UHC™
UltraFET
UniFET™
VCX™
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.
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:
2. A critical component is any component of a life
1. Life support devices or systems are devices or
support device or system whose failure to perform can
systems which, (a) are intended for surgical implant into
be reasonably expected to cause the failure of the life
the body, or (b) support or sustain life, or (c) whose
support device or system, or to affect its safety or
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. I15
10
FPF2000-FPF2007 Rev. C1
www.fairchildsemi.com
FPF2000-FPF2007 IntelliMAX™ Advanced Load Management Products
TRADEMARKS
Similar pages