D ts e t
aa h e
R c e t r lc r nc
o h se Ee to is
Ma u a t r dCo o e t
n fc u e
mp n n s
R c e tr b a d d c mp n ns ae
o h se rn e
o oet r
ma ua trd u ig ete dewaes
n fcue sn i r i/ fr
h
p rh s d f m te oiia s p l r
uc a e r
o h r n l u pi s
g
e
o R c e tr waes rce td f m
r o h se
fr e rae r
o
te oiia I. Al rce t n ae
h
r nl P
g
l e rai s r
o
d n wi tea p o a o teOC
o e t h p rv l f h
h
M.
P r aetse u igoiia fcoy
at r e td sn r n la tr
s
g
ts p o rmso R c e tr e eo e
e t rga
r o h se d v lp d
ts s lt n t g aa te p o u t
e t oui s o u rne
o
rd c
me t o e c e teOC d t s e t
es r x e d h
M aa h e.
Qu l yOv riw
ai
t
e ve
• IO- 0 1
S 90
•A 92 cr ct n
S 1 0 et ai
i
o
• Qu l e Ma ua trr Ls (
ai d
n fcues it QML MI- R -
) LP F
385
53
•C a sQ Mitr
ls
lay
i
•C a sVS a eL v l
ls
p c ee
• Qu l e S p l r Ls o D sr uos( L )
ai d u pi s it f it b tr QS D
e
i
•R c e trsacic l u pir oD A a d
o h se i
r ia s p l t L n
t
e
me t aln u t a dD A sa d r s
es lid sr n L tn ad .
y
R c e tr lcrnc , L i c mmi e t
o h se Ee t is L C s o
o
tdo
t
s p ligp o u t ta s t f c so r x e t-
u pyn rd cs h t ai y u tme e p ca
s
t n fr u lya daee u loto eoiial
i s o q ai n r q a t h s r n l
o
t
g
y
s p l db id sr ma ua trr.
u pi
e yn ut
y n fcues
T eoiia ma ua trr d ts e t c o a yn ti d c me t e e t tep r r n e
h r n l n fcue’ aa h e a c mp n ig hs o u n r cs h ef ma c
g
s
o
a ds e ic t n o teR c e tr n fcue v rino ti d vc . o h se Ee t n
n p c ai s f h o h se ma ua trd eso f hs e ie R c e tr lcr -
o
o
isg aa te tep r r n eo i s mio d co p o u t t teoiia OE s e ic -
c u rne s h ef ma c ft e c n u tr rd cs o h r n l M p c a
o
s
g
t n .T pc lv le aefr eee c p r o e o l. eti mii m o ma i m rt g
i s ‘y ia’ au s r o rfrn e up s s ny C r n nmu
o
a
r xmu ai s
n
ma b b s do p o u t h rceiain d sg , i lt n o s mpetsig
y e a e n rd c c aa tr t , e in smuai , r a l e t .
z o
o
n
© 2 1 R cetr l t n s LC Al i t R sre 0 1 2 1
0 3 ohs E cr i , L . lRg s eevd 7 1 0 3
e e oc
h
T l r m r, l s v iw wrcl . m
o e n oe p ae it w . e c o
a
e
s
o ec
FPF2200-FPF2202 Integrated Load Switch with 500mA High Precision Current Limit
June 2008
FPF2200-FPF2202
Features
1.8 to 5.5V Input Voltage Range
Typical R
DS(ON)
= 140m
Typical R
DS(ON)
= 160m
Integrated Load Switch with 500mA High Precision Current Limit
General Description
@ V
IN
= 5.5V
The FPF2200-FPF2202 are low R
DS(ON)
P-Channel MOSFET
load switches with high precision current limit value. The input
voltage range operates from 1.8V to 5.5V to fulfill today's Ultra
Portable Device's supply requirement. Switch control is by a
logic input (ON) capable of interfacing directly with low voltage
control signal. On-chip pull-down is available for output quick
discharge when switch is turned off.
For the FPF2201, if the constant current condition still persists
after 30ms, these parts will shut off the switch and pull the fault
signal pin (FLAGB) low. The FPF2200 has an auto-restart
feature which will turn the switch on again after 450ms if the ON
pin is still active. The FPF2201 do not have this auto-restart
feature so the switch will remain off until the ON pin is cycled.
For the FPF2202, 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 FPF2200 through FPF2202, the minimum current
limit is 500mA with 5% accuracy.
@ V
IN
= 3.3V
Fixed 500mA Current Limit (min)
5% Accurate Current Limit
72
(typ) Output Discharge Resistance
ESD Protected, above 8kV HBM and 2kV CDM
Applications
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Notebook Computer
Pin 1
BOTTOM
TOP
Ordering Information
Part
FPF2200
FPF2201
FPF2202
Current Limit
(mA)
500
500
500
Current Limit
Blanking Time
(mS)
30
30
NA
Auto-Restart Time
(mS)
450
NA
NA
ON Pin
Activity
Active HI
Active HI
Active HI
©2008 Fairchild Semiconductor Corporation
FPF2200-FPF2202 Rev. B
1
www.fairchildsemi.com
FPF2200-FPF2202 Integrated Load Switch with 500mA High Precision Current Limit
Typical Application Circuit
TO LOAD
V
IN
V
OUT
FPF2200/1/2
OFF ON
ON
GND
FLAGB
Functional Block Diagram
V
IN
UVLO
THERMAL
SHUTDOWN
CONTROL
LOGIC
ON
CURRENT
LIMIT
V
OUT
Output Discharge
FLAGB
GND
FPF2200-FPF2202 Rev. B
2
www.fairchildsemi.com
FPF2200-FPF2202 Integrated Load Switch with 500mA High Precision Current Limit
Pin Configuration
ON 6
GND 5
FLAGB 4
1 N/C
2 V
IN
3 V
OUT
MicroFET 2x2 6L
(BOTTOMVIEW)
Pin Description
Pin
1
2
3
4
5
6
Name
N/C
V
IN
V
OUT
FLAGB
GND
ON
No Connection
Function
Supply Input: Input to the power switch and the supply voltage for the IC
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
Ground
ON/OFF Control Input
Absolute Maximum Ratings
Parameter
V
IN
, V
OUT
, ON, FLAGB TO GND
Power Dissipation @ T
A
= 25°C
Operating and Storage Junction Temperature
Thermal Resistance, Junction to Ambient
Electrostatic Discharge Protection
HBM
MM
CDM
8000
400
2000
-65
Min.
-0.3
Max.
6
1.2
125
86
Unit
V
W
°C
°
C/W
V
V
V
Recommended Operating Range
Parameter
V
IN
Ambient Operating Temperature, T
A
Min.
1.8
-40
Max.
5.5
85
Unit
V
°C
Electrical Characteristics
V
IN
= 1.8 to 5.5V, T
A
= -40 to +85°C unless otherwise noted. Typical values are at V
IN
= 3.3V and T
A
= 25°C.
Parameter
Basic Operation
Operating Voltage
Quiescent Current
Symbol
V
IN
Conditions
Min.
1.8
Typ.
Max.
5.5
Units
V
A
I
OUT
=0mA, V
IN
=V
ON
=1.8V
I
Q
I
OUT
=0mA, V
IN
=V
ON
=3.3V
I
OUT
=0mA, V
IN
=V
ON
=5.5V
V
IN
Shutdown Current
V
ON
=0V, V
IN
=5.5V, V
OUT
=short to
GND
40
45
55
65
75
85
2.5
A
FPF2200-FPF2202 Rev. B
3
www.fairchildsemi.com
FPF2200-FPF2202 Integrated Load Switch with 500mA High Precision Current Limit
Parameter
V
OUT
Shutdown Current
Symbol
Conditions
V
ON
=0V, V
OUT
=5.5V, V
IN
=short to
GND
V
IN
=5.5V, I
OUT
=200mA, T
A
=25°
C
V
IN
=3.3V, I
OUT
=200mA, T
A
=25°
C
Min.
Typ.
Max.
1
Units
A
140
160
230
90
72
0.8
1.4
185
210
300
265
105
V
0.5
1.0
V
A
V
A
m
On-Resistance
R
ON
V
IN
=1.8V, I
OUT
=200mA, T
A
=25°
C
V
IN
=3.3V, I
OUT
=200mA,
T
A
=-40°C to 85°
C
Output Discharge Resistance
ON Input Logic High Voltage (ON)
ON Input Logic Low Voltage (OFF)
On Input Leakage
FLAGB Output Logic Low Voltage
FLAGB Output High Leakage Current
Protections
Current Limit
Thermal Shutdown
Under Voltage Shutdown
Under Voltage Shutdown Hysteresis
Dynamic
Turn On Time
Turn Off Time
V
OUT
Rise Time
V
OUT
Fall Time
Over Current Blanking Time
Auto-Restart Time
Current Limit Response Time
t
ON
t
OFF
t
RISE
t
FALL
t
BLANK
t
RSTRT
UVLO
I
LIM
V
IH
V
IL
V
IN
=3.3V, V
ON
=0V, I
OUT
=10mA
V
IN
=1.8V
V
IN
=5.5V
V
IN
=1.8V
V
IN
=5.5V
V
ON
= V
IN
or GND
V
IN
=5.5V, I
SINK
=100 A
V
IN
=1.8V, I
SINK
=100 A
V
IN
=5.5V, Switch on
-1
1
0.05
0.12
0.1
0.25
1
V
IN
=3.3V, V
OUT
= 3.0V, T
A
=25°
C
Shutdown Threshold
Return from Shutdown
Hysteresis
V
IN
increasing
504
530
140
130
10
557
mA
°C
1.55
1.65
50
1.75
V
mV
S
nS
S
nS
R
L
=500 , C
L
=0.001uF
R
L
=500 , C
L
=0.001uF
R
L
=500 , C
L
=0.001uF
R
L
=500 , C
L
=0.001uF
FPF2200, FPF2201
FPF2200
V
IN
= V
ON
= 3.3V. Over-Current
Condition: R
LOAD
=1.55
15
225
70
600
40
100
30
450
5
60
900
mS
mS
S
FPF2200-FPF2202 Rev. B
4
www.fairchildsemi.com
模拟电子
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
