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Advanced Power
Electronics Corp.
APE8937-HF-3
Ultra-Low On-Resistance 4A Load Switch
Features
Description
Integrated 4A Single Channel Load Switch
The APE8937-HF-3 is a small single load switch with
Input Voltage Range: 0.8V to 5.5V
ultra-low RON of 22mΩ and controlled turn-on, using
Ultra-low On-Resistance
an N-channel MOSFET that can operate over an input
RON=22mΩ at Vin=5V (VBIAS=5V)
voltag
ge range of 0.8V
0
to 5.5V and supportt maximum
RON=22mΩ at Vin=1.8V (VBIAS=5V)
contin
nuous curren
nt up to 4A.
Low Threshhold Control Input
The switch is controlled by an on/off input (EN), which
Adjustable Rise Time
e
is capable of interfacing directly with low-voltage
Integrated Quick Output Discharge
contro
ol signals.
ESD Level: 2kV for HBM, 1kV for CDM
Additional feature
es include a 300Ω on-chip load
RoHS-Compliant, halogen-free
resistor for output quick discharge when the switch is
turned
d off. In orde
er to avoid inrush curren
nt, the rise
Applications
Telecom Systems
time is adjustable using an external ceramic capacitor
Industrial Systems
on the
e CT pin.
Set-Top Boxes
The APE8937-HF-3 is available in an ultra-small,
Consumer Electronics
space-saving 2mmx2mm 8-pin DFN package with
Handheld Products
a thermal pad.
Ordering Information
Pin Configuration
Top View
DFN2x2-8L
APE8937GN2-HF-3TR
VIN
N
1
VIN
N
2
Package Type
GN2 : DFN2x2-8L
Exposed
Pad
EN
E
3
V
BIA
AS 4
Typical Application Circuit
GND
8
VOUT
7
VOUT
6
CT
5
GND
+5V or +3.3V
V
VBIAS
VIN
VIN
CIN
1uF
COUT
0.1uF
APE8937
7
EN
CT
GND
©2014 Advanced Power Electronics Corp. USA
www.a-powerusa.com
VOUT
VOUT
CT
20131015V1.0-3
1/14
Advanced Power
Electronics Corp.
Absolute Maximum Ratings (Note 1)
APE8937-HF-3
at TA= 25°C
VIN
-0.3V
V to 6V
VOUT
VIN+
+0.3V
EN, CT
-0.3V
V to 6V
VBIAS
-0.3+6V
IMAX
4A
Storage Temperature Range
R
(TST)
-65 to
t +150°C
Junction Te
emperature (TJ)
150°C
Lead Temperature (Soldering, 10 sec.)
260°C
Thermal Re
esistance from Junction to Ambient, Rth(ja)
DFN-8L (2mmX2mm)
100°C/W
Thermal Re
esistance from Junction to Case (thermal pad), Rth(jc)
DFN-8L (2mmX2mm)
20°C/W
Electrostatic Discharge (ESD)
HBM (MIL-STD 883G Method 3015.7)
2kV
CDM (JESD22-C101-C)
1kV
Recommended Operating Conditions
VIN
0.8V to 5.5V
VBIAS
2.5V to 5.5V (VBIAS > VIN)
VOUT
VIN1
CIN
>0.1uF
Junction Temperature (TJ)
125°C
Operating Temperature Range
-40°C to +85°C
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are
conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications
and test conditions see the Electrical Specifications.
Note2: The maximum power dissipation is a function of the maximum junction temperature, TJmax , total thermal resistance,
Rth(ja) and ambient temperature TA . The maximum allowable power dissipation at any ambient temperature is (Tjmax -TA ) / Rth(ja).
Note3:
Low duty pulse techniques are used during test to maintain a junction temperature as close to ambient as possible.
THIS PRODUCT IS SENSITIVE TO ELECTROSTATIC DISCHARGE, PLEASE HANDLE WITH CAUTION.
USE OF THIS PRODUCT AS A CRITICAL COMPONENT IN LIFE SUPPORT OR OTHER SIMILAR SYSTEMS IS NOT AUTHORIZED.
APEC 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.
APEC RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN.
©2014 Advanced Power Electronics Corp. USA
www.a-powerusa.com
2/14
Advanced Power
Electronics Corp.
APE8937-HF-3
Electrical Specifications
(VIN=0.8V to 5.5V, VBIAS=5V, CIN=1uF, COUT=0.1uF, TA=25°C, unless otherwise specified)
RAMETER
PAR
Quiescent Current
C
Shutdown Current
C
M
SYM
TEST CON
NDITION
TYP
MAX
M
UNIT
VBIAS=VIN=VEN=5V, IOUUT=0A
50
75
uA
VBIAS=VIN=VEN=2.5V, IOUT=0A
30
50
uA
1
uA
IBIASS
ISD
VEN=GND
D
VBIAS=VIN=VEN=5V,
ON Resistance(Note2)
IOUT=200m
mA
RONN
EN Input Le
eakage Curre
ent
TA=25°C
-40~85°C
22
(N
NOTE1)
23
-40~85°C(NNOTE1)
300
VEN=5V or
o GND
VENH on
mΩ
27
34
ROPD VBIAS=5V, VEN=0V
ION
26
33
VBIAS=VIN=VEN=2.5V, TA=25°C
IOUT=200m
mA
Output Pull Down Resisstance
N
MIN
mΩ
350
Ω
1
uA
1.2
V
EN Thresho
old
VENL off
0.5
V
Note1: Guaranteed by design, not production tested
Note2: Makke sure VBIAS≧VIN for optimum RON pe
erformance.
©2014 Advanced Power Electronics Corp. USA
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Advanced Power
Electronics Corp.
APE8937-HF-3
Pin Descriptions
PIN No.
PIN SYMBOL
PIN DESC
CRIPTION
1, 2
V
VIN
I
Input
power supply; bypa
ass this inputt with a ceram
mic capacito
or to ground.
3
E
EN
E
Enable
contrrol input, actiive high. Do not leave flo
oating.
4
VB
BIAS
5
G
GND
6
C
CT
7, 8
VO
OUT
S
Switch
outpu
ut
G
GND
T to ground
Tie
d to alleviate
e thermal stre
ess.
Exposed
d
pad
B
Bias
voltage.
G
Ground.
A capacitor to
t ground sett the rise time of VOUT.
Block Diagram
VBIAS
VIN
Osscillator
Charrge Pump
VOUT
Control
Logiic
Output Discharge
GND
EN
CT
T
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Advanced Power
Electronics Corp.
APE8937-HF-3
Timing Specifications
VBIAS
VBIAS
VIN
VIN
VOUTT
VOUT
CIN
1uF
COUUT
0.1uF
AP
PE8937
VEN
EN
RL
CT
GND
CT
Fig
g.1 Test Cirrcuit
VEN
tON
tOFF
90%
90%
5
50%
50%
1%
VOUT
tD-ON
10%
10
0%
tR
tF
Fig.2 ON/OFF Wa
aveforms
PAR
RAMETER
Turn-on Tim
me
Turn-off Tim
me
VOUT Rise Time
VOUT Fall Time
T
VOUT Turn--on Delay Tim
me
©2014 Advanced Power Electronics Corp. USA
www.a-powerusa.com
SYM
M
tON
tOFFF
tR
tF
tD-ONN
TEST CON
NDITION
N
MIN
TYP
MAX
M
UNIT
VBIAS=VENN=5V,
VIN=5V
1480
us
CT=1nF, RL=10Ω
VIN=0.8V
520
us
VBIAS=VENN=5V,
VIN=5V
1
us
CT=1nF, RL=10Ω
VIN=0.8V
1
us
VBIAS=VENN=5V,
VIN=5V
1910
us
CT=1nF, RL=10Ω
VIN=0.8V
290
us
VBIAS=VENN=5V,
VIN=5V
1.9
us
CT=1nF, RL=10Ω
VIN=0.8V
1.6
us
VBIAS=VENN=5V,
VIN=5V
310
us
CT=1nF, RL=10Ω
VIN=0.8V
270
us
5/14
Advanced Power
Electronics Corp.
APE8937-HF-3
Typical Performance Characteristics
Condition: VBIAS=5V, VENN=3.3V, CT=
=1nF, CIN=1µF, COUT=0.1µ
µF, Io=4A, ch1:EN, ch2:V
VOUT, ch4:IIN
Fig.3
3 Start-up Waveform,
W
V
VIN=0.8V
S
Wave
eform, VIN=1
1.05V
Fig.4 Start-up
Fig.5
5 Start-up Waveform,
W
V
VIN=1.8V
Fig.6 Start-up
S
Wavveform, VIN=
=2.5V
Fig.7
7 Start-up Waveform,
W
V
VIN=3.3V
Fig.8 Start-up
S
Wavveform, VIN=
=5.0V
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Advanced Power
Electronics Corp.
Typical Performance Characteristics
APE8937-HF-3
(continued)
Condition: VBIAS=VEN=3.3V, CT=1nF
F, CIN=1µF, COUT=0.1µF, Io=4A, ch1:E
EN, ch2:VOUTT, ch4:IIN
Fig.9
9 Start-up Waveform,
W
V
VIN=0.8V
Fig.10 Start-up
S
Wavveform, VIN=
=1.05V
Fig.1
11 Start-up Waveform, VIN=1.8V
V
Fig.12 Start-up Wavveform, VIN=
=2.5V
Fig.1
13 Start-up Waveform, VIN=3.3V
V
=5.0V
Fig.14 Start-up Wavveform, VIN=
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Advanced Power
Electronics Corp.
Typical Performance Characteristics
APE8937-HF-3
(continued)
Condition: VBIAS=VEN=5V
V, CT=1nF, CIN=1µF, COUUT=0.1µF, RL
L=10Ω, ch1:E
EN, ch2:VOUTT
Fig.15 Turn-on Re
esponse Time, VIN=0.8V
V
Fig.16 Turrn-on Respo
onse Time, VIN=1.8V
esponse Time, VIN=3.3V
V
Fig.17 Turn-on Re
Fig.18 Tu
urn-on Respo
onse Time, VIN=5V
V
esponse Time, VIN=0.8V
V
Fig.19 Turn-off Re
Fig.20 Turrn-off Respo
onse Time, VIN=1.8V
©2014 Advanced Power Electronics Corp. USA
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Advanced Power
Electronics Corp.
Typical Performance Characteristics
APE8937-HF-3
(continued)
Condition: VBIAS=VEN=5V
V, CT=1nF, CIN=1µF, COUUT=0.1µF, RL
L=10Ω, ch1:E
EN, ch2:VOUTT
Fig.21 Turn-off Re
esponse Time, VIN=3.3V
V
Fig.22 Tu
urn-off Respo
onse Time, VIN=5V
V
Fig.23 Turn-on Delay Time, VIN=0.8V
Fig.24 Turn-on
T
Dela
ay Time, VIN=1.8V
Fig.25 Turn-on Delay Time, VIN=3.3V
Fig.26 Turn-on Delay Time, VIN
N=5V
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Advanced Power
Electronics Corp.
APE8937-HF-3
Typical Performance Characteristics
2.0
CT=1nF, Cin=1uF, Cout=0.1uF
F, RL=10Ω
1600
1.8
1400
1.6
Turn
off Time (us)
Turn-off
Turn-on Time (us)
1800
(continued)
1200
1000
800
600
CT=1n
nF, Cin=1uF, Co
out=0.1uF, RL=10Ω
1.4
1.2
1.0
0.8
0.6
400
0.4
VBIAS=5V
200
VBIAS=5V
0.2
VBIAS=3.3V
0
VBIA
AS=3.3V
0.0
0.8
8
1.4
2.0
2.6 3.2
VIN (V)
3
3.8
4.4
5.0
0.8
4
1.4
Fig.27 tON vs. VIN
10
C
CT=1nF,
Cin=1u
uF, Cout=0.1uF, RL=10Ω
2000
9
1750
8
1500
1250
1000
750
500
4.4
5.0
CT=1nF, Cin=1uF, Co
out=0.1uF, RL=1
10Ω
7
6
5
4
3
VBIAS=5V
1
VBIAS=3.3V
0
VBIA
AS=3.3V
0
0.8
8
1.4
2.0
2.6 3.2
VIN (V)
3
3.8
4.4
5.0
0.8
Fig.29 tR vs. VIN
2.0
1.4
2.6 3.2
VIN (V)
3.8
4.4
5.0
Fig.30 tF vs. VIN
22.0
CT=1nF, Cin=1uF, Cout=0.1uF
F, RL=10Ω
380
21.9
360
21.8
340
21.7
320
21.6
RON (mΩ)
VOUT Turn-on Delay Time (us)
3.8
2
VBIAS=5V
250
400
2.6 3.2
VIIN (V)
Fig.28 tOFFF vs. VIN
VOUT Fall Time (us)
VOUT Rise Time (us)
2250
2.0
300
280
21.5
21.4
21.3
260
21.2
240
VBIAS=5V
220
VBIAS=3.3V
VBIAS=5V
21.1
VBIA
AS=3.3V
21.0
200
8
0.8
1.4
2.0
2.6 3.2
VIN (V)
3
3.8
N
Fig.31 tD-ON vs. VIN
©2014 Advanced Power Electronics Corp. USA
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4.4
5.0
0.8
1
1.4
2
2.6
6 3.2
VIN
N (V)
3.8
4.4
5
Fig.32 RONN vs. VIN
10/14
Advanced Power
Electronics Corp.
Typical Performance Characteristics
APE8937-HF-3
(continued)
2.0
31
1.8
29
1.6
1.4
25
VEN (V)
RON (mΩ)
27
23
21
1.2
1.0
0.8
0.6
19
0.4
VBIA
AS=VIN=5V
17
VBIA
AS=VIN=3.3V
15
-40 -20
0
20
0 40 60
TJ (°C)
80
100 120
0
Fig.33 RONN vs. Tempera
ature
VEN-H
0.2
VEN-L
0.0
0
-40 -20
0
20
4
40
60
TJ (°C)
80 100 120
Fig.34 EN
E Threshold
d vs. Temperature
70
60
IBIAS (uA)
50
40
30
20
VBIA
AS=VIN=5V
10
VBIA
AS=VIN=3.3V
0
-40
-20
0
20
0
40 60
TJ (°C)
80
100 120
0
Fig.35 Quiescent Current vs. Temperature
T
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Advanced Power
Electronics Corp.
APE8937-HF-3
Application Information
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 low voltag
ge signals. The
T EN pin ca
an be used with
w standard
d 1.2V, 1.8V, 2.5V
2
or 3.3V
V
GPIO logic threshold. Do
D not leave the
t EN pin flo
oating.
Output Rise Time Control
The rise tim
me of VOUT is adjustable
e by an exte
ernal capacitor on the CT
T pin. The risse time show
wn in the table
w
below is the typical measured value. Please refer to it for determining rise time.
V
VOUT
Rise Time,
T
tR(µs),
10%~90%, VBIAS=V
= EN=5V, CINN=1uF, COUT=0.1µF,
=
RL=1
10Ω
CT (nF)
V
VIN=0.8V
V
VIN=1.05V
VIN=1.2V
VIN=1.5V
VIN=1.8V
VIN=2.5V
VIN=3.3V
VIN=5V
0
29
38
40
48
53
63
76
100
0.22
85
114
125
168
190
260
329
501
0.47
151
208
218
287
334
435
601
946
1
302
397
427
548
673
926
1247
1911
2.2
610
865
924
1227
1448
1979
2736
4176
4.7
1228
1723
1872
2450
3000
4043
5583
8681
10
2227
3418
3624
4894
5689
8159
10830
16910
<Table 1>
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.
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Advanced Power
Electronics Corp.
Application Information
APE8937-HF-3
(continued)
Input Capa
acitor
An input cap
pacitor is reccommended to be placed
d between VIN and GND to limit the voltage drop on the input
supply durin
ng high curre
ent applicatio
ons.
Output Cap
pacitor
Setting a CIN greater th
han the COUTT is highly re
ecommended
d. Since the MOSFET switch has an internal body
diode, this prevents the flow of current through the body diode from VOUT to VIN when the system supply is
removed.
Layout Con
nsiderations
s
The figure below shows the suggested layout for the APE8937-HF-3. The list below will help with layout.
he high curre
ent paths (VIN
N, VOUT and
d GND; blue circle) wide and short to
o obtain the best
b
effect.
1. Keep th
2. The inp
put and outpu
ut capacitorss should be as close to the device as possible to minimize any parasitic
trace inductances.
3. Place thermal vias under the exposed pad of the device (green circle). This helps with thermal diffusion
away fro
om the devicce.
E8937 Referrence Layoutt
Fig.36 APE
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Advanced Power
Electronics Corp.
APE8937-HF-3
Package Dimensions: DFN2X2-8L
E
E2
D
Millimeters
SYMBOLS
D2
MIN
NOM
MAX
A
0.70
0.75
0.80
A1
0.005
0.030
0.060
A2
0.145
0.170
0.190
b
0.20
0.25
0.30
D
1.95
2.00
2.05
D2
0.80
0.90
1.00
E
1.95
2.00
2.05
E2
1.50
1.60
1.70
e
1
e
L
L
0.50
0.20
0.30
0.40
b
BOTTOM VIEW
1. All dimensions are in millimeters.
2. Dimensions do not include mold protrusions.
A
A2
A1
Marking Information
8937
YWWS
Product : APE8937
Date/lot code (YWWS)
Y: Last digit of the year
WW: Work week
S: Lot code sequence
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