Diodes AP1212HSL-13 Dual usb high-side power switch Datasheet

AP1212
DUAL USB HIGH-SIDE POWER SWITCH
General Description
Features
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The AP1212 series are dual integrated high-side power switch
with independent enable and flag functions, optimized for
self-powered and bus-powered Universal Serial Bus (USB)
applications. The AP1212 series support the following USB
requirements: each switch channel supplies up to 500mA as
required by USB downstream devices; the switch’s low
on-resistance meets USB voltage drop requirements; fault
current is limited to typically 1000mA, well below the UL 25VA
safety requirements; and a flag output is available to indicate fault
conditions to the local USB controller. Soft start eliminates the
momentary voltage drop on the upstream port that may occur
when the switch is enabled in bus-powered applications.
Additional features include thermal shutdown to prevent
catastrophic switch failure from high-current loads, under voltage
lockout (UVLO) to ensure that the device remains off unless there
is a valid input voltage present, and 3.3V and 5V logic compatible
enable inputs.
Compliant to USB specifications
Dual independent switches control
2.7V to 5.5V input voltage
500mA minimum continuous current per port
110mΩ typical on-resistance
1.25A maximum short circuit current limit
Independent open-drain fault flag pins
110μA typical on-state supply current
1μA typical off-state supply current
Output can be forced higher than input (off-state)
Thermal shutdown
2.4V typical under voltage lockout (UVLO)
1ms turn-on (soft-start) and fast turn-off
Enable active-high (H) or active-low (L)
SOP-8L: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish/RoHS Compliant (Note 1)
Applications
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USB hubs
Hot plug-in power supplies
Battery-charger circuits
Ordering Information
A P 1 2 1 2 X X X X
Enable
Active
- High
H:
L : Active - Low
Note:
Packing
U
: Tube
-13 : Taping
Lead Free
L : Lead Free
G : Green
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
(Note 3)
AP1212XS
Note:
Package
S : SOP - 8L
Package
Packaging
Code
S
SOP-8L
Tube
Quantity
Part Number
Suffix
100
-U
13” Tape and Reel
Part Number
Quantity
Suffix
2500/Tape & Reel
-13
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be on found our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1212 Rev. 2
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Pin Assignments
(Top View)
EN1
8 OUT1
1
FLG1 2
AP1212
6 GND
FLG2 3
EN2
7 IN
4
5 OUT2
SOP-8L
Pin Descriptions
Name
EN1
EN2
FLG1
FLG2
GND
IN
OUT1
OUT2
AP1212 Rev. 2
Description
Enable: Logic-compatible enable
input. ( H: active high, L: active low).
Do not float.
Fault Flag: Active-low, open-drain
output. Indicates over current,
UVLO, and thermal shutdown.
Supply return.
Supply Input: Output MOSFET drain.
Also supplies IC’s internal circuitry.
Connect to positive supply.
Switch Output: Output MOSFET
source. Typically connect to
switched side of load.
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Block Diagram
FLG1
Driver
Charge
Pump
Current
Limit
Thermal
Shutdown
UVLO
Charge
Pump
Current
Limit
EN2
FLG2
CS
IN
CS
Driver
Power N-MOSFET
EN1
Power N-MOSFET
OUT1
OUT2
Absolute Maximum Ratings
Symbol
VIN
VFLG
IFLG
VOUT
VEN
TST
ESD HBM
ESD MM
AP1212 Rev. 2
(Note 3)
Parameter
Supply Voltage
Fault Flag Voltage
Fault Flag Current
Output Voltage
Control Input Range
Storage Temperature
Note 3
Note 3
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Rating
+7
+7
50
+7
–0.3 to VIN +2
-65 to +150
500
150
Unit
V
V
mA
V
V
°C
V
V
FEBRUARY 2007
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Operating Ratings
Note:
(Note 4)
Symbol
VIN
Parameter
Supply Voltage
TOP
ΘJA
ΘJC
Operating Junction Temperature
Thermal Resistance SOP Junction to Ambient
Thermal Resistance SOP Junction to Case
Rating
Unit
+2.7 to +5.5
-40 to +125
165
26
V
°C
°C/W
°C/W
3. Exceeding the absolute maximum rating may damage the device.
4. The device is not guaranteed to function outside its operating rating.
Electrical Characteristics (Under the conditions of VIN =+5V and TA =25oC, unless otherwise specified)
Symbol
Parameter
ICC
Supply Current
VIT
IEN
CEN
Enable Input Threshold
Enable Input Current
Enable Input Capacitance
RDS(ON)
Switch Resistance
TOND
TR
TOFFD
TF
ILEAK
IOUT
Output Turn-On Delay
Output Turn-On Rise Time
Output Turnoff Delay
Output Turnoff Fall Time
Output Leakage Current
Continuous Load Current
IOS
Short-circuit Current Limit
ILIM
Current-Limit Threshold
TTS
Over-temperature
Shutdown Threshold
RFO
IFOH
UVLO
Note:
Error Flag Output
Resistance
Error Flag Off Current
UVLO Threshold
Conditions
Switch off, OUT = open (Note 6)
All switches on, OUT = open
(Note 6)
(Note 6)
VEN = 0V to 5.5V
VIN = 2.7V ~ 5.5V, IOUT =
500mA, each switch
RL = 10Ω each output
RL = 10Ω each output
RL = 10Ω each output
RL = 10Ω each output
Each output (output disabled)
Each output
Each output (enable into load),
VOUT = 0V
Ramped load applied to
enabled output
TJ increasing
TJ decreasing
VIN = 5V, IL = 10mA
VIN = 3.3V, IL = 10mA
VFLAG = 5V
VIN = increasing
VIN = decreasing
Min.
0.8
-1
Typ.
0.50
Max.
5
Unit
µA
110
160
µA
1.7
±0.01
1
2.40
1
V
µA
pF
110
140
mΩ
30
1
0.5
0.5
10
10
10
0.6
µS
mS
µS
µS
µA
A
0.8
1.0
1.25
A
1.0
1.2
1.4
A
°C
140
130
10
15
0.01
2.5
2.3
25
40
1
°C
Ω
Ω
µA
V
V
5. Devices are ESD sensitive. Handling precautions are recommended. Human Body model, tested per JEDEC 22-A114.
Machine model, tested per JEDEC 22-A115.
6. Off is VEN≦0.8V and on is VEN≧2.4V for the AP1212H. Off is VEN≧2.4V and on is VEN≦0.8V for the AP1212L.
AP1212 Rev. 2
4 of 12
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Performance Characteristics
On-Resistance vs. Temperature
On-Resistance vs. Supply Voltage
160
120
150
ON-RESISTANCE (ms)
ON-RESISTANCE (ms)
116
112
108
104
100
RL =10ohm
T=25℃
96
140
130
120
3.0
3.5
4.0
4.5
5.0
VSUPPLY=3.3V
100
90
RL=10ohm
80
70
60
- 40
92
88
2.5
VSUPPLY =5V
110
5.5
- 20
SUPPLY VOLTAGE (V)
RISE TIME ( m S )
RISE TIME ( mS )
1.0
O
85 C
-40OC
0.8
O
25 C
0.6
0.4
80
100
1.2
VSUPPLY =5V
1.0
0.8
CL=47 uF
0.0
3.5
4.0
4.5
5.0
RL=10ohm
CL=47uF
0.2
0.0
3.0
VSUPPLY=3.3V
0.6
0.4
RL=10ohm
0.2
5.5
-40
-20
0
SUPPLY VOLTAGE (V)
20
40
60
TEMPERATURE (OC)
80
100
On-Current vs. Temperature
On-Current vs. Supply Voltage
200
220
200
180
160
140
120
100
80
60
40
180
160
O
25 C
CURRENT (≤gA)
CURRENT (≤gA)
60
1.4
1.2
AP1212 Rev. 2
40
Turn-On Rise Time vs. Temperature
1.4
20
0
2.5
20
TEMPERATURE (O C )
Turn-On Rise Time vs. Supply Voltage
2.5
0
O
-40 C
85OC
VSUPPLY =5V
140
120
100
80
60
VSUPPLY =3.3V
40
20
3.0
3.5
4.0
4.5
SUPPLY VOLTAGE (V)
5.0
5.5
0
-40
-20
0
20
40
60
80
100
O
TEMPERATURE (C)
5 of 12
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Performance Characteristics
(Continued)
Off-Current vs. Temperature
Off-Current vs. Supply Voltage
350
350
300
300
O
85 C
250
CURRENT (nA)
CURRENT (nA)
250
200
150
O
100
25 C
200
VSUPPLY=5V
150
VSUPPLY=3.3V
100
50
50
0
0
O
-40 C
-50
2.5
3.0
3.5
4.0
4.5
5.0
-50
-40
5.5
-20
0
40
60
80
100
TEMPERATURE ( C)
Enable Threshold vs. Temperature
Enable Threshold vs. Supply Voltage
2.0
2.0
1.8
1.8
ENABLE THRESHOLD (V)
ENABLE THRESHOLD (V)
20
O
SUPPLY VOLTAGE (V)
1.6
VEN RISING
1.4
VEN FALLING
1.2
VEN RISING
1.6
VEN FALLING
1.4
VIN=5V
1.2
O
T=25 C
1.0
2.5
3.0
3.5
4.0
4.5
5.0
1.0
-40
5.5
-20
0
1.4
1.4
O
CURRENT-LIMIT (A)
CURRENT-LIMIT (A)
1.6
-40 C
O
25 C
O
85 C
0.6
0.4
1.2
VSUPPLY=5V
1.0
0.8
VSUPPLY=3.3V
0.6
0.4
3.0
3.5
4.0
4.5
5.0
5.5
0.0
-40
SUPPLY VOLTAGE (V)
AP1212 Rev. 2
100
0.2
0.2
0.0
2.5
80
Short-Circuit Current-Limit vs. Temperature
Short-Circuit Current-Limit vs. Supply Voltage
0.8
60
TEMPERATURE ( C)
1.6
1.0
40
O
SUPPLY VOLTAGE (V)
1.2
20
-20
0
20
40
60
80
100
O
TEMPERATURE ( C)
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Performance Characteristics
(Continued)
Current-Limit Threshold vs. Temperature
Current-Limit Threshold vs. Supply Voltage
1.6
1.4
1.4
O
-40 C
O
25 C
1.2
CURRENT-LIMIT (A)
CURRENT-LIMIT THRESHOLD (A)
1.6
O
85 C
1.0
0.8
0.6
0.4
VSUPPLY=5V
1.2
1.0
VSUPPLY=3.3V
0.8
0.6
0.4
0.2
0.2
0.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.0
-40
-20
0
20
40
60
80
100
O
SUPPLY VOLTAGE (V)
TEMPERATURE ( C)
UVLO Threshold vs. Temperature
3.0
VIN RISING
UVLO THRESHOLD (V)
2.5
VIN FALLING
2.0
1.5
1.0
0.5
0.0
-40
-20
0
20
40
60
80
100
O
TEMPERATURE ( C)
AP1212 Rev. 2
7 of 12
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Functional Characteristics
Turn-On/Turn-Off (AP1212H)
Turn-On (AP1212H)
VEN
VEN
VIN=5V
CL=47µF
RL=35Ω
VFLG
Inrush Current
VOUT
VFLG
VIN=5V
CL=47µF
RL=35Ω
Output Turn-On
Rise Time
140 mA
VOUT
140 mA
Inrush Current
IOUT
IOUT
TIME (10mS/div.)
TIME (200µS/div.)
Turn-Off (AP1212H)
Enabled Into Short (AP1212H)
VEN
VEN
VIN=5V
CL=47µF
RL=35Ω
VFLG
VOUT
VFLG
Short-Circuit Current
V
140 mA
I
IOUT
TIME (2mS/div.)
TIME (500µS/div.)
Current-Limit Response (AP1212H)
Current-Limit Response (AP1212H)
VEN
VEN
VIN=5V
CL=47µF
VOUT
Current-Limit Short-Circuit Current
Threshold
Thermal Shutdown
VFLG
VOUT
Hysteresis (10OC)
TIME (50mS/div.)
AP1212 Rev. 2
VIN=5V
VIN=5V
CL=47µF
Current-Limit
Threshold
Short-Circuit Current
I
TIME (20µS/div.)
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Application Circuit
Power
Supply
3.3V
Downstream
USB Ports
AP1212
5V
7
IN
8
OUT1
0.1uF
0.1uF
ferrite bead
2
FLG1
1
EN1
3
FLG2
4
EN2
USB
Control
D+
Dferrite bead
VBUS
33uF
GND
5
OUT2
0.1uF
D+
Dferrite bead
VBUS
33uF
GND
GND
6
ferrite bead
Test Circuit
VCC
10K R1
+5V
10K R2
ON
OFF
R3>=10
EN1
OUT1
FLG1
IN
C1
FLG2
ON
OFF
AP1212 Rev. 2
GND
0.1uF
R4>=10
EN2
OUT2
AP1212
9 of 12
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Function Description
Error Flag
An open-drained output of N-channel MOSFET, the FLG
output is pulled low to signal the following fault conditions: input
undervoltage, output current limit, and thermal shutdown.
Supply Filtering
A 0.1µF to 1µF bypass capacitor from IN to GND, located
near the device, is strongly recommended to control supply
transients. Without a bypass capacitor, an output short may
cause sufficient ringing on the input (from supply lead inductance)
to damage internal control circuitry.
Current Limit
The current limit threshold is preset internally. It protects
the output MOSFET switches from damage due to undesirable
short circuit conditions or excess inrush current often
encountered during hot plug-in. The low limit of the current limit
threshold of the AP1212 allows a minimum current of 0.5A
through the MOSFET switches. A current limit condition will
signal the error flag.
Transient Droop Requirements
USB applications support dynamic attachment (hot plug-in)
of peripherals. A current surge is caused by the input capacitance
of downstream device. Ferrite beads are recommended in series
with all power and ground connector pins. Ferrite beads reduce
EMI and limit the inrush current during hot-attachment by filtering
high-frequency signals.
Thermal Shutdown
When the chip temperature exceeds 140ºC for any reason
other than over current fault of either one of the two MOSFET
switches, the thermal shutdown function turns off both MOSFET
switches and signals the error flag. A hysteresis of 10ºC prevents
the MOSFETs from turning back on until the chip temperature
drops to below 130ºC.
Short Circuit Transient
Bulk capacitance provides the short-term transient current
needed during a hot-attachment event. With a 33µF, 16V
tantalum or 100µF, 10V electrolytic capacitor mounted close to
downstream connector per port should provide transient drop
protection.
Printed Circuit Layout
The power circuitry of USB printed circuit boards requires
a customized layout to maximize thermal dissipation and to
minimize voltage drop and EMI.
AP1212 Rev. 2
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Marking Information
SOP-8L
(Top View)
5
8
Enable Type
H : Active High
L : Active Low
L : Lead Free
G : Green
Logo
AP12 12 X
Part Number
YY WW X X
4
~
1
ID code: internal
Xth week: 01~52
Year: "01" =2001
"02" =2002
SOP-8L
Device
Package
Identification Code
AP1212XS
SOP-8L
AP1212
Package Information
0.254
0.08/0.25
5.79/6.20
3.70/4.10
Package Type: SOP-8L
Gauge Plane
Seating Plane
0.38/1.27
Detail "A"
7°~9°
0.20typ
1.30/1.50
1.75max.
0.35max. 45°
0.3/0.5
1.27typ
7°~9°
Detail "A"
3.70/4.10
4.80/5.30
AP1212 Rev. 2
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AP1212
DUAL USB HIGH-SIDE POWER SWITCH
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
AP1212 Rev. 2
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