FPF2107.pdf 데이터시트 (총 12 페이지) - 파일 다운로드 FPF2107 데이타시트 다운로드

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May 2005
FPF2100-FPF2107
IntelliMAX™ Advanced Load Management Products
Features
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
200mA and 400mA Current Limit Options
Undervoltage Lockout
Thermal Shutdown
<1uA Shutdown Current
Auto restart
Fast Current limit Response Time
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
Typical Application Circuit
General Description
The FPF2100 through FPF2107 is a family of load switches
which provide full protection to systems and loads which may
encounter large current conditions. These devices contain a
0.125current-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.
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 FPF2100-FPF2102 and
FPF2104-FPF2106, 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 FPF2100, FPF2101,
FPF2104 and FPF2105, have an auto-restart feature which will
turn the switch on again after 160ms if the ON pin is still active.
The FPF2102 and FPF2106 do not have this auto-restart
feature so the switch will remain off until the ON pin is cycled.
For the FPF2103 and FPF2107, 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 FPF2100 through FPF2103, the
minimum current limit is 200mA while that for the FPF2104
through FPF2107 is 400mA.
These parts are available in a space-saving 5 pin SOT23
package.
OFF ON
VIN VOUT
FPF2100 - FPF2107
ON FLAGB
GND
TO LOAD
©2005 Fairchild Semiconductor Corporation
FPF2100-FPF2107 Rev. D2
1
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Functional Block Diagram
VIN
UVLO
ON
CONTROL
LOGIC
THERMAL
SHUTDOWN
CURRENT
LIMIT
VOUT
FLAGB
Pin Configuration
VIN 1
5 VOUT
GND 2
ON 3
4 FLAGB
SOT23-5
GND
Pin Description
Pin Name
1 VIN
2 GND
3 ON
4 FLAGB
5 VOUT
Function
Supply Input: Input to the power switch and the supply voltage for the IC
Ground
ON Control Input
Fault Output: Active LO, open drain output which indicates an over current supply,
under voltage or over temperature state.
Switch Output: Output of the power switch
FPF2100-FPF2107 Rev. D2
2
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Absolute Maximum Ratings
Parameter
VIN, VOUT, ON, FLAGB to GND
Power Dissipation @ TA = 25°C (note 1)
Operating Junction Temperature
Storage Temperature
Thermal Resistance, Junction to Ambient
Electrostatic Discharge Protection
HBM
MM
Min.
-0.3
-40
-65
4000
400
Max.
6
667
125
150
150
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 +85°C unless otherwise noted. Typical values are at VIN = 3.3V and TA = 25°C.
Parameter
Symbol
Conditions
Min.
Typ.
Basic Operation
Operating Voltage
Quiescent Current
VIN
IQ
Shutdown Current
Latch-Off Current (note 2)
On-Resistance
ISHDN
ILATCHOFF
RON
ON Input Logic High Voltage
VIH
ON Input Logic Low Voltage
VIL
ON Input Leakage
Off Switch Leakage
FLAGB Output Logic Low Voltage
ISWOFF
FLAGB Output High Leakage Current
Protections
IOUT = 0mA
Von active
VIN = 1.8 to 3.3V
VIN = 3.3 to 5.5V
VON = VIN, after an overcurrent fault
TA = 25°C, IOUT = 50mA
TA = -40 to +85°C, IOUT = 50mA
VIN = 1.8V
VIN = 5.5V
VIN = 1.8V
VIN = 5.5V
VON = VIN or GND
VON = 0V, VOUT = 0V
VIN = 5V, ISINK = 10mA
VIN = 1.8V, ISINK = 10mA
VIN = 5V, Switch on
1.8
0.75
1.30
95
110
50
125
150
0.1
0.15
Current Limit
ILIM
VIN = 3.3V,
FPF2100,
VOUT = 3.0V
FPF2101,
FPF2102,
FPF2103
200 300
FPF2104,
FPF2105,
FPF2106,
FPF2107
400 600
Thermal Shutdown
Shutdown Threshold
140
Return from Shutdown
130
Hysteresis
10
Max Units
5.5 V
A
200
1A
A
160 m
V
0.5 V
1.0
1A
1A
0.2 V
0.3
1A
400 mA
800
°C
FPF2100-FPF2107 Rev. D2
3
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Electrical Characteristics Cont.
.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
Parameter
Symbol
Conditions
Min. Typ.
Protections
Under Voltage Shutdown
UVLO
Under Voltage Shutdown Hysteresis
VIN Increasing
1.5 1.6
47
Dynamic
Turn on time
Turn off time
VOUT Rise Time
VOUT Fall Time
Over Current Blanking Time
tON
tOFF
tR
tF
tBLANK
RL=500 , CL=0.1uF
RL=500 , CL=0.1uF
RL=500 , CL=0.1uF
RL=500 , CL=0.1uF
FPF2100, FPF2101, FPF2102,
FPF2104, FPF2105, FPF2106
25
50
12
136
5 10
Auto-Restart Time
tRSTRT
FPF2100, FPF2101, FPF2104,
FPF2105
80 160
Short Circuit Response Time
VIN = VON = 3.3V. Moderate
Over-Current Condition.
3
VIN = VON = 3.3V. Hard Short.
20
Max Units
1.7 V
mV
s
s
s
s
20 ms
320 ms
s
ns
Note 1: Package power dissipation on 1square inch pad, 2 oz copper board.
Note 2: Applicable only to FPF2102 and FPF2106. Latchoff current does not include current flowing into FLAGB.
FPF2100-FPF2107 Rev. D2
4
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Typical Characteristics
120
110
VON = VIN
100
90
80
70
60
1.5
2 2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
Figure 1. Quiescent Current vs. Input Voltage
6
150
130
110
VIN = 5.5V
VIN = 3.3V
90
70 VIN = 1.8V
50
-40
-15 10 35 60
TJ, JUNCTION TEMPERATURE (oC)
Figure 2. Quiescent Current vs. Temperature
85
700
I_SHDN
600
500
400
300 VIN = 5.5V
200
VIN = 3.3V
100
0
-40 -15 10 35 60 85
TJ, JUNCTION TEMPERATURE (oC)
Figure 3. ISHUTDOWN Current vs. Temperature
500
I_SWOFF
400
300
200 VIN = 5.5V
100 VIN = 3.3V
0
-40 -15 10 35 60
TJ, JUNCTION TEMPERATURE (oC)
Figure 4. ISWITCH-OFF Current vs. Temperature
85
63
59
55
51
47
43
39
35
-40
VIN = 5.5V
VIN = 3.3V
-15 10 35 60
TJ, JUNCTION TEMPERATURE (oC)
Figure 5. ILATCHOFF vs. Temperature
1.4
1.2
FPF2100, 2102, 2103, 2104, 2106, 2107
1
0.8 FPF2101, 2105
0.6
0.4
0.2
0
85 1.5 2 2.5 3 3.5 4 4.5 5 5.5
VIN, INPUT VOLTAGE (V)
Figure 6. VIH vs. VIN
FPF2100-FPF2107 Rev. D2
5
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