Anachip AP1212LS Dual usb high-side power switch Datasheet

AP1212
Dual USB High-Side Power Switch
„ Features
„ General Description
- 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)
- 8-pin SOP and PDIP packages
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.
„ Applications
•
•
•
USB hubs
Hot plug-in power supplies
Battery-charger circuits
„ Pin Assignments
„ Pin Descriptions
Name
(Top View)
EN1
EN2
8 OUT1
EN1 1
7 IN
FLG1
FLG2
FLG2 3
6 GND
GND
EN2 4
5 OUT2
IN
FLG1 2
AP1212
OUT1
OUT2
PDIP/SOP
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.
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 1.0
1/11
Sep.23, 2004
AP1212
Dual USB High-Side Power Switch
„ Ordering Information
AP 12 1 2 X X X X
Power Switch
Enable
H: Active-High
L: Active-Low
Package
Lead Free
Packing
S:SOP-8
N:PDIP-8L
Blank : Normal
L : Lead Free Package
Blank : Tube
A: Taping
„ Block Diagram
FLG1
Driver
EN2
FLG2
Charge
Pump
Current
Limit
Thermal
Shutdown
UVLO
Charge
Pump
Current
Limit
CS
IN
CS
Driver
Power N-MOSFET
EN1
Power N-MOSFET
OUT1
OUT2
„ Absolute Maximum Ratings (Note 1)
Symbol
VIN
VFLG
IFLG
VOUT
VEN
TST
TLEAD
ESD Rating
Parameter
Supply Voltage
Fault Flag Voltage
Fault Flag Current
Output Voltage
Control Input Range
Storage Temperature
Lead Temperature
Note 3
Rating
+7
+7
50
+7
–0.3 to VIN +2
-65 to +150
260
4
Anachip Corp.
www.anachip.com.tw
Unit
V
V
mA
V
V
oC
oC
KV
Rev. 1.0
2/11
Sep.23, 2004
AP1212
Dual USB High-Side Power Switch
„ Operating Ratings (Note 2)
Symbol
VIN
TA
ΘJA
ΘJA
Parameter
Supply Voltage
Ambient Operating Temperature
Thermal Resistance SOP
Thermal Resistance PDIP
IN
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
Error Flag Output
Resistance
Error Flag Off Current
UVLO Threshold
Unit
+2.7 to +5.5
-40 to +85
V
oC
oC/W
oC/W
120
100
„ Electrical Characteristics (Under the conditions of V
Symbol
Rating
=+5V and TA=25oC, unless otherwise specified.)
Conditions
switch off, OUT = open (Note 4)
all switches on, OUT = open
(Note 4)
(Note 4)
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
µS
mS
µS
µS
µA
A
10
10
10
0.6
0.8
1.0
1.25
A
1.0
1.2
1.4
A
oC
oC
140
130
10
15
0.01
2.5
2.3
25
40
1
Ω
Ω
µA
V
V
Note 1. Exceeding the absolute maximum rating may damage the device.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5k in series with 100pF.
Note 4. Off is VEN≦0.8Vand on is VEN≧2.4V for the AP1212H. Off is VEN≧2.4V and on is VEN≦0.8V for the AP1212L.
Anachip Corp.
www.anachip.com.tw
Rev.1.0
3/11
Sep.23, 2004
AP1212
Dual USB High-Side Power Switch
Typical Performance Characteristics
„
On-Resistance vs. Temperature
On-Resistance vs. Supply Voltage
160
120
150
140
112
ON-RESISTANCE (mΩ)
ON-RESISTANCE (mΩ)
116
108
104
100
RL=10Ω
96
O
T=25 C
92
88
2.5
130
120
VSUPPLY=5V
110
VSUPPLY=3.3V
100
90
RL=10Ω
80
70
3.0
3.5
4.0
4.5
5.0
60
-40
5.5
-20
0
1.4
1.2
1.2
RISE TIME (mS)
RISE TIME (mS)
O
-40 C
O
25 C
0.4
RL=10Ω
0.2
3.5
4.0
4.5
5.0
VSUPPLY=3.3V
0.6
0.4
RL=10Ω
0.0
-40
5.5
CL=47µ F
-20
0
40
60
80
100
TEMPERATURE ( C)
On-Current vs. Temperature
On-Current vs. Supply Voltage
200
220
200
180
180
160
O
CURRENT (µ A)
25 C
160
CURRENT (µ A)
20
O
SUPPLY VOLTAGE (V)
140
120
O
-40 C
100
O
85 C
80
60
VSUPPLY=5V
140
120
100
80
60
VSUPPLY=3.3V
40
40
20
20
0
2.5
100
0.8
0.2
CL=47µ F
3.0
80
VSUPPLY=5V
1.0
O
85 C
0.8
0.0
2.5
60
Turn-On Rise Time vs. Temperature
Turn-On Rise Time vs. Supply Voltage
0.6
40
TEMPERATURE ( C)
1.4
1.0
20
O
SUPPLY VOLTAGE (V)
3.0
3.5
4.0
4.5
5.0
0
-40
5.5
-20
0
20
40
60
80
100
O
SUPPLY VOLTAGE (V)
TEMPERATURE ( C)
Anachip Corp.
www.anachip.com.tw
Rev.1.0
4/11
Sep.23, 2004
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
50
0
-50
2.5
200
3.5
4.0
VSUPPLY=3.3V
100
50
0
O
-40 C
3.0
VSUPPLY=5V
150
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
-40 C
CURRENT-LIMIT (A)
CURRENT-LIMIT (A)
1.6
O
25 C
0.8
O
85 C
0.6
0.4
80
100
1.2
VSUPPLY=5V
1.0
0.8
VSUPPLY=3.3V
0.6
0.4
0.2
0.2
0.0
2.5
60
Short-Circuit Current-Limit vs. Temperature
Short-Circuit Current-Limit vs. Supply Voltage
1.0
40
TEMPERATURE ( C)
1.6
1.2
20
O
SUPPLY VOLTAGE (V)
3.0
3.5
4.0
4.5
5.0
0.0
-40
5.5
SUPPLY VOLTAGE (V)
-20
0
20
40
60
80
100
O
TEMPERATURE ( C)
Anachip Corp.
www.anachip.com.tw
Rev.1.0
5/11
Sep.23, 2004
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
1.0
VSUPPLY=3.3V
0.8
0.6
0.4
0.2
0.2
0.0
2.5
VSUPPLY=5V
1.2
3.0
3.5
4.0
4.5
5.0
0.0
-40
5.5
-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)
Anachip Corp.
www.anachip.com.tw
Rev.1.0
6/11
Sep.23, 2004
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
VOUT
Inrush Current
VFLG
VIN=5V
CL=47µF
RL=35Ω
Output Turn-On
Rise Time
VOUT
140 mA
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
VIN=5V
VOUT
140 mA
Short-Circuit Current
IOUT
IOUT
TIME (2mS/div.)
TIME (500µS/div.)
Current-Limit Response (AP1212H)
Current-Limit Response (AP1212H)
VEN
VEN
VFLG
VFLG
VOUT
IOUT
VIN=5V
CL=47µF
VIN=5V
CL=47µF
Current-Limit Short-Circuit Current
Threshold
Thermal Shutdown
VOUT
Current-Limit
Threshold
Short-Circuit Current
IOUT
Hysteresis (10OC)
TIME (50mS/div.)
TIME (20µS/div.)
Anachip Corp.
www.anachip.com.tw
Rev.1.0
7/11
Sep.23, 2004
AP1212
Dual USB High-Side Power Switch
„ Typical Application Circuit
Power
Supply
3.3V
Downstream
USB Ports
AP1212
5V
7
IN
OUT1
0.1uF
0.1uF
feerite bead
2
FLG1
1
EN1
3
FLG2
4
EN2
USB
Control
8
D+
Dfeerite bead
VBUS
33uF
GND
OUT2
5
0.1uF
GND
6
D+
Dfeerite bead
VBUS
33uF
GND
feerite bead
„ Test Circuit
VCC
10K R1
+5V
10K R2
ON
OFF
ON
OFF
10Ω R3
EN1
OUT1
FLG1
IN
FLG2
GND
EN2
OUT2
0.1uF
C1
10Ω R4
AP1212
Anachip Corp.
www.anachip.com.tw
Rev.1.0
8/11
Sep.23, 2004
AP1212
Dual USB High-Side Power Switch
„ Function Description
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.
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.
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 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 overcurrent fault of either one of
the two MOSFET switches, the thermal shutdown
function turns off both MOSFET switches and
signal 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.
„ Marking Information
(Top View)
8
5
Enable Type
H: Active High
L: Active Low
Logo
AP1212 X
Part Number
Blank: normal
L: Lead Free Package
YY WW X X
4
~
1
ID code: internal
Xth week: 01~52
Year: "01" =2001
"02" =2002
PDIP/SOP
Anachip Corp.
www.anachip.com.tw
Rev.1.0
9/11
Sep.23, 2004
AP1212
Dual USB High-Side Power Switch
„ Package Information
(1) Package Type: PDIP-8L
D
E1
E-PIN O0.118 inch
E
15 (4X)
PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch
C
7 (4X)
A1
L
A
A2
eB
B
S
Symbol
A
A1
A2
B
B1
B2
C
D
E
E1
e
L
eB
S
e
B1
B2
Dimensions in millimeters
Min.
Nom.
Max.
5.33
0.38
3.1
3.30
3.5
0.36
0.46
0.56
1.4
1.52
1.65
0.81
0.99
1.14
0.20
0.25
0.36
9.02
9.27
9.53
7.62
7.94
8.26
6.15
6.35
6.55
2.54
2.92
3.3
3.81
8.38
8.89
9.40
0.71
0.84
0.97
Anachip Corp.
www.anachip.com.tw
Dimensions in inches
Min.
Nom.
Max.
0.210
0.015
0.122
0.130
0.138
0.014
0.018
0.022
0.055
0.060
0.065
0.032
0.039
0.045
0.008
0.010
0.014
0.355
0.365
0.375
0.300
0.313
0.325
0.242
0.250
0.258
0.100
0.115
0.130
0.150
0.330
0.350
0.370
0.028
0.033
0.038
Rev.1.0
10/11
Sep.23, 2004
AP1212
Dual USB High-Side Power Switch
„ Package Information (Continued)
H
E
(2) Package Type: SOP-8L
L
VIEW "A"
D
0.015x45
7 (4X)
e
B
A1
C
A
A2
7 (4X)
VIEW "A"
y
Symbol
A
A1
A2
B
C
D
E
e
H
L
y
θ
Dimensions In Millimeters
Min.
Nom.
Max.
1.40
1.60
1.75
0.10
0.25
1.30
1.45
1.50
0.33
0.41
0.51
0.19
0.20
0.25
4.80
5.05
5.30
3.70
3.90
4.10
1.27
5.79
5.99
6.20
0.38
0.71
1.27
0.10
0O
8O
Anachip Corp.
www.anachip.com.tw
Dimensions In Inches
Min.
Nom.
Max.
0.055
0.063
0.069
0.040
0.100
0.051
0.057
0.059
0.013
0.016
0.020
0.0075
0.008
0.010
0.189
0.199
0.209
0.146
0.154
0.161
0.050
0.228
0.236
0.244
0.015
0.028
0.050
0.004
0O
8O
Rev.1.0
11/11
Sep.23, 2004
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