FPF2003 [FAIRCHILD]
IntelliMAX⑩ Advanced Load Management Products; 的IntelliMAX ™先进负载管理产品
| 型号： | FPF2003 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | IntelliMAX⑩ Advanced Load Management Products |
| 文件： | 总10页 (文件大小：516K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
December 2004
FPF2000-FPF2007
IntelliMAX™ Advanced Load Management Products
Features
General Description
■ 1.8 to 5.5V Input Voltage Range
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-lim-
ited 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 con-
tains thermal shutdown protection which shuts off the switch to pre-
vent damage to the part when a continuous over-current condition
causes excessive heating.
■ Controlled Turn-On
■ 50mA and 100mA Current Limit Options
■ Under voltage Lockout
■ Thermal Shutdown
■ <1uA Shutdown Current
■ Auto Restart
■ Fast Current limit Response Time
When the switch current reaches the current limit, the part oper-
ates in a constant-current mode to prohibit excessive currents from
causing damage. For the FPF2000-FPF2002 and FPF2004-
FPF2006, 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 cur-
rent 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.
•
•
3us to Moderate Over Currents
20ns to Hard Shorts
■ Fault Blanking
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
FLAGB
THERMAL
SHUTDOWN
GND
©2004 Fairchild Semiconductor Corporation
FPF2000-FPF2007 Rev. C1
1
www.fairchildsemi.com
Pin Configuration
VOUT
GND
5
4
VIN
ON
1
2
3
FLAGB
SC70-5
Pin Description
Pin
Name
Function
1
2
3
V
Switch Output: Output of the power switch
Ground
OUT
GND
FLAGB
Fault Output: Active LO, open drain output which indicates an over current, supply under voltage
or over temperature state.
4
5
ON
On Control Input
V
Supply Input: Input to the power switch and the supply voltage for the IC
IN
Absolute Maximum Ratings
Parameter
Min.
-0.3
Max.
6
Units
V
V
IN
DC Input Voltage
-0.7
6
V
Power Dissipation for Single Operation @ 85°C
Operating Junction Temperature
Storage Temperature
250
85
mW
°C
-40
-65
150
400
°C
Thermal Resistance, Junction to Ambient
Electrostatic Discharge Protection
°C/W
V
HBM
MM
4000
400
V
Recommended Operating Range
Parameter
Min.
1.8
Max.
5.5
Units
V
V
IN
Ambient Operating Temperature, T
-40
85
°C
A
2
www.fairchildsemi.com
FPF2000-FPF2007 Rev. C1
Electrical Characteristics
V
= 1.8 to 5.5V, T = -40 to +85°C unless otherwise noted. Typical values are at V = 3.3V and T = 25°C.
IN
A
IN
A
Parameter
Symbol
Conditions
Min.
Typ.
Max. Units
Basic Operation
Operating Voltage
V
1.8
5.5
V
IN
Quiescent Current
I
I
= 0mA
V
V
= 1.8 to 3.3V
= 3.3 to 5.5V
60
40
µA
Q
OUT
IN
IN
100
Latch-Off Current
Shutdown Current
On-Resistance
I
FPF2002, FPF2006
µA
µA
Ω
LATCH
I
1
1
SHDN
R
T = 25°C, I = 20mA
OUT
0.7
ON
A
T = -40 to +85°C, I
= 20mA
OUT
0.85
0.66
1.22
0.64
1.17
A
ON Input Logic High Voltage
ON Input Logic Low Voltage
V
V
V
V
V
V
V
V
V
V
= 1.8V
= 5.5V
= 1.8V
= 5.5V
0.5
0.9
V
V
IH
IN
IN
V
0.8
1.5
1
IL
IN
IN
ON Input Leakage
= V or GND
µA
µA
V
ON
ON
IN
Off Switch Leakage
I
= 0V, V
= 0V
1
SWOFF
OUT
FLAGB Output Logic Low Voltage
= 5V, I
= 10mA
SINK
0.1
0.1
0.2
0.3
1
IN
IN
IN
= 1.8V, I
= 10mA
SINK
FLAGB Output High Leakage Current
Protections
= 5V, Switch on
µA
Current Limit
I
V
V
= 3.3V,
FPF2000, FPF2001,
FPF2002, FPF2003
50
75
100
200
mA
LIM
IN
= 0V
OUT
V
V
= 3.3V,
= 0V
FPF2004, FPF2005,
FPF2006, FPF2007
100
150
IN
OUT
Thermal Shutdown
T Increasing
140
130
1.6
50
°C
°C
V
J
T Decreasing
J
Under Voltage Shutdown
Under Voltage Shutdown Hysteresis
Dynamic
UVLO
V
Increasing
1.5
1.7
IN
mV
Turn on time
t
Ω, CL=0.1µF
Ω, CL=0.1µF
Ω, CL=0.1µF
Ω, CL=0.1µF
50
0.5
10
µs
µs
µs
µs
ms
ON
Turn off time
t
OFF
Rise Time
t
RISE
Fall Time
t
0.1
10
FALL
OVER Current Blanking Time
t
FPF2000, FPF2001, FPF2002,
FPF2004, FPF2005, FPF2006
5
20
BLANK
Auto-Restart Time
t
FPF2000, FPF2001, FPF2004,
FPF2005
40
80
3
160
ms
µs
RESTART
Short Circuit Response Time
Vin = Von = 3.3V. Moderate
Over-current condition.
Vin = Von = 3.3V. Hard Shorts.
20
nS
3
www.fairchildsemi.com
FPF2000-FPF2007 Rev. C1
Typical Characteristics
75
90
85
80
75
70
65
60
55
50
45
40
VON = VIN
VON = VIN
70
65
60
55
50
VIN = 5.5V
VIN = 3.3V
VIN = 1.8V
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
-40
-15
10
35
60
85
SUPPLY VOLTAGE (V)
T , JUNCTION TEMPERATURE (
)
°C
J
Figure 1. Quiescent Current vs. Input Voltage
Figure 2. Quiescent Current vs. Temperature
35
160
ISHDN
140
30
25
20
15
10
5
FPF2004, 2005, 2006, 2007
120
100
80
60
VIN = 5V
FPF2000,2001 2002, 2003
40
VIN = 3.3V
20
0
0
-40
-15
10
35
60
85
0
0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7
IN - VOUT (V)
3
3.3
V
T , JUNCTION TEMPERATURE (
)
°C
J
Figure 3. Current Limit vs. Output Voltage
Figure 4. Shutdown Supply Current vs. Temperature
1.1
180
ILIMIT
1
VIN = 1.8V
160
140
120
100
80
0.9
0.8
FPF2004, 2005, 2006, 2007
FPF2000, 2001, 2002, 2003
VIN = 3.6V
0.7
VIN = 3.3V
0.6
VIN = 5V
0.5
0.4
0.3
0.2
0.1
0
60
40
20
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TJ, JUNCTION TEMPERATURE (°C)
°C
TJ, JUNCTION TEMPERATURE (
)
Figure 5. Current Limit vs. Temperature
Figure 6. Switch Resistance vs. Temperature
4
www.fairchildsemi.com
FPF2000-FPF2007 Rev. C1
Typical Characteristics
35
30
25
20
15
10
5
52
VIN = 3.3V
48
44
40
36
32
28
VIN = 5V
VIN = 3.3V
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TJ, JUNCTION TEMPERATURE (°C
)
TJ, JUNCTION TEMPERATURE (°C)
Figure 7. Latch-Off Current vs. Temperature
Figure 8. Switch-Off Current vs. Temperature
1.5
CIN = 10uF
COUT = 1uF
1.25
1
VIN
FPF2000, 2002, 2003, 2004, 2006, 2007
2V/Div
FPF2001, 2005
0.75
0.5
0.25
0
IOUT
2A/Div
VOUT
2V/Div
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
80
VDRV
2V/Div
VOUT
2V/Div
60
IOUT
50mA/
Div
VFLAG
40
2V/Div
-40
-15
10
35
60
85
TJ JUNCTION TEMPERATURE (°C)
10mS/Div
Figure 11. Auto-Restart Time vs. Temperature
Figure 12. Auto-Restart Time Response
5
www.fairchildsemi.com
FPF2000-FPF2007 Rev. C1
Typical Characteristics
100
100
10
ILOAD = 10mA
VCC = 3.3V
TON
TRise
ILOAD = 10mA
VCC = 3.3V
10
1
1
TFall
0.1
0.01
TOFF
0.1
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TJ, JUNCTION TEMPERATURE (°C
)
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
12
11
10
9
VDRV
2V / DIV
VOUT
2V / DIV
IOUT
2V / DIV
8
VFLAG
-40
-15
10
35
60
85
2V / DIV
TJ, JUNCTION TEMPERATURE (°C
)
5mS/DIV
Figure 17. Blank Time vs. Temperature
Figure 18. Fault Blanking Response
6
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FPF2000-FPF2007 Rev. C1
Typical Characteristics
CIN = 10uF
VIN
CIN = 1uF
COUT = 1uF
COUT = 1uF
2V / DIV
V
IN =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, under-
voltage lockout and thermal shutdown. The current limit is pre-
set for either 50mA or 100mA.
returns HI at the end of the fault condition. FLAGB is an open-
drain MOSFET which requires a pull-up resistor between V
and FLAGB. During shutdown, the pull-down on FLAGB is dis-
abled to reduce current draw from the supply.
IN
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 cur-
rent 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 cur-
rent state until the ON pin is deactivated or the thermal shut-
down 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-volt-
age on VIN or a junction temperature in excess of 150°C over-
rides 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 automati-
cally 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 volt-
age 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 Auto-
Restart 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 exter-
nally generated excessive temperatures. During an over-tem-
perature condition the FLAGB is activated and the switch is
turned-off. The switch automatically turns-on again if tempera-
ture of the die drops below the threshold temperature.
7
www.fairchildsemi.com
FPF2000-FPF2007 Rev. C1
Application Information
Typical Application
To Load
VOUT
FPF2000-FPF2007
ON
FLAGB
OFF ON
GND
Over Current Blanking Time, t
power dissipated is,
, so that the maximum
Input Capacitor
BLANK
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
tBLANK
P(max) =
× VIN(max) × ILIM(max)
--------------------------------------------------
t
RESTART + tBLANK
between V and GND. A 0.1µF ceramic capacitor, C , placed
IN
IN
close to the pins is usually sufficient. Higher values of C can
be used to further reduce the voltage drop.
10
80 + 10
IN
=
(3)
× 5.5 × 0.2 = 1.22mW
-------------------
Output Capacitor
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 shut-
down threshold. Once this temperature has been reached, tog-
gling 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 V
and
OUT
GND. This capacitor will prevent parasitic board inductances
from forcing V below GND when the switch turns-off. For the
OUT
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,
ILIM(max) × tBLANK(min)
COUT
=
(1)
-------------------------------------------------------------------
VIN
Due to the integral body diode in the PMOS switch, a C
Board Layout
IN
greater than C
is highly recommended. A C
greater than
OUT
OUT
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 opera-
C
can cause V
to exceed V when the system supply is
IN
OUT IN
removed. This could result in current flow through the body
diode from V to V
.
IN
OUT
tion. Using wide traces for V , V
mize parasitic electrical effects along with minimizing the case
to ambient thermal impedance.
and GND will help mini-
Power Dissipation
IN
OUT
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,
P = (ILIM)2 × RDS = (0.2)2 × 0.7 = 28mW
(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 dissi-
pation will scale by the Auto-Restart Time, t
, and the
RESTART
8
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FPF2000-FPF2007 Rev. C1
Dimensional Outline and Pad Layout
SC70-5
SYMM
C
L
0.65
2.00 0.20
A
.5 min
B
5
4
3
1.9
1.25 0.10
1
0.4 min
0.30
0.15
(0.25)
1.30
0.65
LAND PATTERN RECOMMENDATION
SEE DETAIL A
M
0.10
A B
1.30
1.00
0.80
1.10
0.80
0.10
C
0.10
0.00
C
(0.43)
Seating Plane
2.10 0.10
GAGE PLANE
0.20
R0.10
0.25
0.10
0°-30°
0.45
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
Minimum
Current Limit
Current Limit BlankingTime Auto-Restart
Part Number
FPF2000
FPF2001
FPF2002
FPF2003
FPF2004
FPF2005
FPF2006
FPF2007
[mA]
50
[ms]
10
10
10
0
Time [ms]
ON Pin Activity
Active HI
Top Mark
200
80
80
50
Active LO
Active HI
201
50
NA
NA
80
202
50
Active HI
203
100
100
100
100
10
10
10
0
Active HI
204
80
Active LO
Active HI
205
NA
NA
206
Active HI
207
9
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FPF2000-FPF2007 Rev. C1
TRADEMARKS
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.
FAST
FASTr™
FPS™
FRFET™
GlobalOptoisolator™
GTO™
ACEx™
POP™
SPM™
Stealth™
IntelliMAX™
ISOPLANAR™
LittleFET™
MICROCOUPLER™
MicroFET™
MicroPak™
MICROWIRE™
MSX™
ActiveArray™
Bottomless™
CoolFET™
CROSSVOLT™
DOME™
EcoSPARK™
E2CMOS™
EnSigna™
FACT™
Power247™
PowerEdge™
PowerSaver™
PowerTrench
QFET
SuperFET™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SyncFET™
QS™
HiSeC™
QT Optoelectronics™ TinyLogic
I2C™
Quiet Series™
RapidConfigure™
RapidConnect™
µSerDes™
TINYOPTO™
TruTranslation™
UHC™
MSXPro™
OCX™
OCXPro™
i-Lo™
ImpliedDisconnect™
FACT Quiet Series™
UltraFET
OPTOLOGIC
OPTOPLANAR™
PACMAN™
Across the board. Around the world.™
The Power Franchise
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SMART START™
VCX™
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FAIRCHILD SEMICONDUCTOR RESERVESTHE RIGHTTO MAKE CHANGES WITHOUTFURTHER NOTICETOANY
PRODUCTS HEREINTO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOTASSUMEANYLIABILITY
ARISING OUTOFTHEAPPLICATION OR USE OFANYPRODUCTOR CIRCUITDESCRIBED HEREIN; NEITHER DOES IT
CONVEYANYLICENSE UNDER ITS PATENTRIGHTS, NORTHE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUTTHE EXPRESS WRITTENAPPROVALOF 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, or (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 significant injury to the
user.
2. A critical component is 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
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
Obsolete
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.
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
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FPF2000-FPF2007 Rev. C1
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