Power APE8988 1.5a load switch with controlled turn on Datasheet

Advanc
A
ced Pow
wer
E
Electron
nics Co
orp.
AP
PE8988
1.5A LOA
AD SWIT
TCH WITH CON
NTROLL
LED TU
URN-ON
FEATUR
RES
DES
SCRIPTIO
ON
▓
Integrated 1.5A Single
e Channel Lo
oad Switch
The APE8988 is a low RON load sw
witch with
▓
Input Volttage Range: 0.8V to 5.5V
V
contro
olled turn on. It conttains one N-channel
▓
Low Thre
eshold Contro
ol Input
MOSFET that ca
an operate o
over an inp
put voltage
▓
Quick Ou
utput Discharrge Transisto
or
range
e of 0.8V to 5.5V an
nd support maximum
▓
Over-Tem
mperature Prrotection
contin
nuous curre
ent up to 1.5A. The switch is
▓
Over Currrent Protectiion
contro
olled by an on/off
o
input ((EN), which is capable
▓
Short Circuit Protectio
on
of in
nterfacing directly
d
with
h low-voltag
ge control
▓
Open-Dra
ain Fault Flag Output
signals.
▓
Low ON-Resistance RON = 40mΩ
Additional feature
es include a 330Ω on-chip load
▓
Halogen Free Producct
resisttor is added for output quick discha
arge when
switch
h is turned off. A well p
protection is
s equipped
APPLICATIONS
▓
Telecom Systems
▓
Set-Top-B
Box
▓
Consume
er Electronicss
▓
Notebookks / Netbooks
when the device
e enters ha
ard short circuit
c
and
therm
mal shutdown
n.
The APE8988
A
is available
a
in ssmall SOT-26 package
with smallest
s
com
mponents.
TYPICA
AL APPLICATION
+
+5V
RF
10kΩ~100kΩ
VB
BIAS
*R1
VIN
FLAG
FLG
VIN
10kΩ
C IN
1uF
APE
E8988
VOUT
T
EN
GN
ND
*C1
0.1uF
VOUT
COUT
0.1uF
*
*Option
for flag
g transient filteriing
Data and speecifications suubject to changge without nottice
1
20131015V1.22
Advanc
A
ced Pow
wer
E
Electron
nics Co
orp.
AP
PE8988
ORDERING / PA
ACKAGE INFORM
MATION
APE898
88X
Top View
T
S
SOT-26
Pack
kage Type
Y: SOT-26
FLG
G VBIAS EN
6
5
4
(Marking)
1
GND
D
2
VIN
3
VOUT
ABSOLU
UTE MAX
XIMUM RATINGS
R
S (at TA=25°C
C)
VIN
-0.3V
V to 6V
VBIAS
-0.3 to 6V
VOUT
VIN+
+0.3V
EN, /FLG
-0.3V
V to 6V
Storage Temperature Range
R
(TST)
-65 to
t +150°C
Junction Te
emperature (TJ)
150°°C
Lead Temp
perature (Soldering, 10se
ec.)
260°°C
Thermal Re
esistance from Junction to
t Ambient (R
RθJA)
SOT-26
250°°C/W
RECOM
MMENDED
D OPERA
ATING CONDITIO
C
ONS
VIN
0.8V
V to 5.5V
VBIAS
4.5V
V to 5.5V (VB
BIAS≧VIN)
VOUT
.
VIN
CIN
≧0.1uF
Junction Te
emperature (TJ)
125°°C
Operating Temperature
T
e Range (TA )
-40°C to 85°C
2
Advanc
A
ced Pow
wer
E
Electron
nics Co
orp.
AP
PE8988
ELECTR
RICAL SP
PECIFICA
ATIONS
(VIN=0.8V to
o 5.5V, VBIAS=5V,
=
CIN=1uF
F, COUT=0.1u
uF, TA =25°C, unless othe
erwise speciffied)
P
PARAMETER
R
SYM
ONDITION
TEST CO
MIN
TYP
AX
MA
UNIT
30
50
5
uA
1
uA
4.2
4
V
Quiescent Current
C
IBIAS
VEN=5V, IOUT=0A
Shutdown Current
C
ISD
VEN=GND
VUVLO
Threshold
VHYS
Hysteresis
0.4
Switch ON Resistance
R
RON
VEN=VBIAS, IOUUT=200mA
40
Current Lim
mit Threshold
ILM
VOUT Rise Time
tSS
Under-Volta
age Lockout
Output Pull--Down Resisstance
ROPD
FLAG Delayy Time (Note1)
tDELAY
FLAG ON Resistance
R
RFLG
EN Input Le
eakage Curre
ent
EN Thresho
old
Thermal Shutdown Thre
eshold
(Note1)
3.0
3.6
V
50
5
1.8
A
VIN=5V
650
VIN=5V, VEN=0
0V
330
om fault condition to FLA
AG
fro
20
IEN
VEN=5V or GN
ND
VIH
on
n
VIL
offf
TSD
Hysteresis
us
400
3
asssert
mΩ
Ω
ms
50
5
Ω
1
uA
1.6
V
0.6
0
V
140
o
30
o
C
C
Note1: Guarantee by de
esign, not pro
oduction testted.
3
Advanc
A
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wer
E
Electron
nics Co
orp.
AP
PE8988
PIN DES
SCRIPTIO
ONS
PIN No.
PIN SYMBOL
1
G
GND
G
Ground.
2
V
VIN
I
Input
Power Supply.
3
VO
OUT
4
E
EN
5
VB
BIAS
6
/F
FLG
PIN DESC
CRIPTION
S
Switch
outpu
ut.
S
Switch
control input, activ
ve high. Do not
n leave floa
ating.
B
Bias
Voltage
e.
O
Open-drain
f
fault
flag outp
put.
BLOCK DIAGRA
AM
VIN
VBIAS
U
UVLO
Current
Limiting
Osscillator
Charrge Pump
VOUT
Contrrol
Logic
Output Discharge
Th
hermal
Pro
otection
FLG
EN
GND
4
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wer
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Electron
nics Co
orp.
AP
PE8988
TYPICA
AL PERFO
ORMANC
CE CHAR
RACTERISTICS
CIN=1µF, COUT
o=0A, ch1: VEN, ch2: VOUUT, ch3: /FLG
G, ch4: IIN
O =0.1µF, Io
Fig.1 Turn-on Response,
R
V
VIN=0.8V
T
Resp
ponse, VIN=1.2V
Fig.2 Turn-on
R
V
VIN=1.5V
Fig.3 Turn-on Response,
Fig.4 Turn-on
T
Resp
ponse, VIN=1.8V
5 Turn-on Response,
R
V
VIN=3.3V
Fig.5
Fig.6 Turn-on
T
Resp
ponse, VIN=5.0V
5
Advanc
A
ced Pow
wer
E
Electron
nics Co
orp.
AP
PE8988
TYPICA
AL PERFO
ORMANC
CE CHAR
RACTERISTICS (C
Continued
d)
500
700
Cin=1uF, Cout=0.1uF, Io=0A
450
Cin=1u
uF, Cout=0.1uF
F, Io=0A
600
400
500
300
400
250
tR (us)
tD-ON (us)
350
200
150
300
200
100
100
50
0
0
0.8
1.4
2.0
2.6 3.2
VIN (V)
3
3.8
4.4
5.0
Fig
g.7 Turn-on Delay Time vs. VIN
1000
4.5
950
2.6 3.2
V (V)
VIN
3.8
4.4
5.0
Cin=1uF, Cout=0.1uF
F, Io=0A
900
3.5
850
3.0
tF (us)
tD-OFF (us)
2.0
Fig.8 VOUT Rise
e Time vs. VIN
V
5.0
4.0
2.5
2.0
1.5
800
750
700
1.0
650
0.5
0.0
600
0.8
1.4
2.0
2.6 3.2
VIN (V)
3
3.8
4.4
5.0
0
0.8
Fig
g.9 Turn-offf Delay Time vs. VIN
4
1.4
2.0
2.6 3.2
V (V)
VIN
3.8
4.4
5.0
0 VOUT Fa
all Time vs. VIN
V
Fig.10
3.0
60
V
VBIAS=VIN=5V,
, Io=1A
VBIAS=
=VIN=5V
2.7
55
2.4
50
2.1
45
ILM (A)
RON (mΩ)
4
1.4
0.8
40
1.8
1.5
1.2
35
0.9
30
0.6
25
0.3
20
0.0
-40 -20
0
20 40 60
TJ (°C)
80
100 120
0
Fig.11 RONN vs. Tempera
ature
-40
-2
20
0
2
20
40
TJ (°C)
6
60
80
Fig.12 Current Limit vs. Temperrature
6
Advanc
A
ced Pow
wer
E
Electron
nics Co
orp.
AP
PE8988
TYPICA
AL PERFO
ORMANC
CE CHAR
RACTERISTICS (C
Continued
d)
4.5
2.0
4.0
1.8
3.5
1.6
1.4
VEN (V)
VBIAS (V)
3.0
2.5
2.0
1.5
1.0
0.8
0.6
1.0
0.4
UVLO-H
UVLO-L
0.5
VEN-H
0.2
0.0
VEN-L
0.0
0
-40
-20
0
20
40
TJ (°C)
60
-40
80
Fig.13 UVLO Thrreshold vs. Temperature
Te
-20
0
2
20
40
TJ (°C)
60
6
80
Fig.14 EN
E Threshold
d vs. Temperature
45
3.5
40
3.0
35
2.5
30
2.0
IBIAS (uA)
FLAG Delay Time (ms)
1.2
1.5
25
20
15
1.0
10
0.5
VIN=0.8V
V
5
0.0
VIN=5V
V
0
0
-40
-20
0
20
40
TJ (°C)
60
80
ay Time vs. Temperature
T
Fig.15 FLAG Dela
-40 -20
0
20
4
40
60
TJ (°C)
80
100 120
Fig.16 VBIAS
V
Curren
nt vs. Tempe
erature
7
Advanc
A
ced Pow
wer
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Electron
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orp.
AP
PE8988
APPLICATION IN
NFORMA
ATION
On/Off Con
ntrol
The load sw
witch is conttrolled by the
e EN pin. Th
he EN pin is
s active high
h and has a low thresho
old making itt
capable of interfacing with
w low volta
age signals. The EN pin
n can be use
ed with standard 1.8V, 2.5V
2
or 3.3V
V
GPIO logic threshold. Do
D not leave the
t EN pin flo
oat.
The Figure1
17 shows the
e VOUT on/o
off definition.
tD-ON: VOUT
T turn-on dela
ay time
tR: VOUT risse time
tD-OFF: VOUT
T turn-off delay time
tF: VOUT fall time
EN
90
0%
90%
10%
10%
%
VOUT
tD-ON
tR
tD-OFF
tF
Fig.17 ON/OFF Waveform
W
FLAG Indic
cator
The APE89
988 providess an error ind
dicator (/FLG
G) output, which
w
is an open-drain
o
output requiring a pull-up
p
resistor. Typ
pically conne
ect to +5V bias
b
supply th
hrough a 10kΩ resistor. The FLAG ccomparator continuously
c
y
monitors th
he fault cond
dition for ovver current, short circuitt and therma
al shutdown
n conditions. If the faultt
condition ke
eeps for 3mss, /FLG becomes low imm
mediately.
Input Capa
acitor
An input capacitor is reccommended to be placed
d between VIN and GND to limit the vvoltage drop on the inputt
supply durin
ng high curre
ent applicatio
on.
Output Cap
pacitor
Setting a CIN greater th
han the COUTT is highly re
ecommended
d. Since the internal bod
dy diode is in
n the NMOS
S
switch, this prevents the
e current flow
ws through th
he body diod
de from VOU
UT to VIN wh
hen the syste
em supply iss
removed.
8
Advanc
A
ced Pow
wer
E
Electron
nics Co
orp.
AP
PE8988
APPLICATION IN
NFORMA
ATION (Continued))
Layout Con
nsiderations
s
Follow the below
b
guidelines for PCB
B layout to acchieve stable
e operation. Take
T
below ffigure for refe
erence.
1. Keep th
he high curre
ent paths (VIN
N, VOUT and
d GND) wide
e and short to
o obtain the best effect.
2. The inp
put and outpu
ut capacitorss should be close
c
to the device
d
as po
ossible to min
nimize the pa
arasitic trace
e
inductances.
Fig.18 Reference
e layout
9
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A
ced Pow
wer
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Electron
nics Co
orp.
AP
PE8988
MARKIN
NG INFORMATION
SOT-26
Part Number : HP
HP
PSS
e Code
Date
SS:2
2004, 2008, 20
012…
SS:2
2003, 2007, 20
011...
SS:2
2002, 2006, 20
010…
SS:2
2001, 2005, 20
009...
100
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