AIC AIC1527-0CS Quad usb high-side power switch Datasheet

AIC1527
Quad USB High-Side Power Switch
n FEATURES
• 110mΩ (5V Input) High-Side MOSFET Switch.
l 500mA Continuous Load Current per Channel.
l 220µA Typical On-State Supply Current.
l 1µA Typical Off-State Supply Current.
l Current-Limit / Short Circuit Protection.
l Thermal Shutdown Protection under Overcurrent
Condition.
l Undervoltage Lockout Ensures that Switch is off at
Start Up.
l Output can be Forced Higher than Input (Off-State).
l Open-Drain Fault Flag.
l Slow Turn ON and Fast Turn OFF.
l Enable Active-High or Active-Low.
n APPLICATIONS
• USB Power Management.
l
Hot Plug-In Power Supplies.
l
Battery-Charger Circuit.
n DESCRIPTION
The AIC1527 is a quad high-side power switch for
self-powered and bus-powered Universal Serial
Bus (USB) applications. One high-side switch is a
MOSFET with 110mΩ RDS(ON), which meets USB
voltage drop requirements for maximum
transmission wire length.
Multi-purpose open-drain fault flag output
indicates over-current limiting, thermal shutdown,
or undervoltage lockout for each channel. Output
current is typically limited to 1A, well below the 5A
safety requirement, and the thermal shutdown
function independently controls each channel
under overcurrent condition.
Guaranteed minimum output rise time limits
inrush current during hot plug-in, minimizing EMI
and preventing the voltage at upstream port from
dropping excessively.
n TYPICAL APPLICATION CIRCUIT
Ferrite
Bead
VCC
5.0V
+
33µ F
10K
+
10K
DGND
DATA
AIC17
1722
IN
+
GND
0 .01µF
10K
VBUS
D+
*
VBUS
D+
10K
4.50V to 5.25V
Upstream VBUS
100mA max
D-
33µF
1µF
CIN
OUT
+
10µF
COUT
GND
DATA
US B Con tr oller
AAIICC155227
VIN ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
GND
OUTA
CTLA
FLGA IN(A/B)
FLGB
GND1
CTLB
CTLA OUTB
FLGA
OUTA
FLGB IN(A/B)
CTLB
+
33µ F
*
0.1µF
VBUS
D+
0.01 µF
DGND
DATA
0.1µF
VBUS
+
GND 1
33µF
*
D+
0.01 µF
D-
OUTB
GND
DATA
*
33µ F, 16V Tantalum, or
100 µF, 10V Electrolytic
Bold line indicate high- current traces
+
33µF
*
VBUS
D+
0. 01µF
DGND
DATA
4-Port Self-Powered Hub
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1527-00
May 31, 00
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
AIC1527
n ORDERING INFORMATION
AIC1527- XXX
PIN CONFIGURATION
ORDER NUMBER
TOP VIEW
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
AIC1527-0CN
AIC1527-1CN
(PLASTIC DIP)
TEMPERATURE RANGE
C:0° C~+70°C
AIC1527-0CS
AIC1527-1CS
(PLASTIC SO)
CONTROL POLARITY
0: ACTIVE LOW
1: ACTIVE HIGH
CTLA 1
16 OUTA
FLGA 2
FLGB 3
15 IN(A/B)
)
14 GND
CTLB 4
13 OUTB
CTLC
12 OUTC
5
FLGC 6
11 IN(C/D)
FLGD 7
10 GND
CTLD
8
9 OUTD
n ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V IN) .........................… … … … ............................… … … … .......… … ........... 7.0V
Fault Flag Voltage (V FLG) ........................................................… … … … .… … … … … .......... 7.0V
Fault Flag Current (IFLG) ...................… … … … … … .......................… … … ....................... 50mA
Control Input (V CTL)
.............................… … … … ....................… … … … … ........… . -0.3V ~15V
Operating Temperature Range
Storage Temperature Range
.....… … … … … ...… … ..… … … ....… … … ................. -20°C~80°C
.......… … … … … … … ............................… … … ....... -65°C ~ 150°C
n TEST CIRCUIT
+5V
10K
ON
CTLA
OUTA
FLGA
IN ( A/B )
OF F
0.1 µ F
FLGB
GND
CTLB
OUTB
CTLC
OUTC
FLGC
IN ( C/D )
CTLD
FLGD
10 Ω
GND
OUTD
AIC1527
(For output reference only)
DS-1527-00
May 31, 00
2
AIC1527
n ELECTRICAL CHARACTERISTICS (V
IN=
5V, Ta=25°C, unless otherwise
specified.)
PARAMETERS
Supply Current
Control Input Voltage
CONDITIONS
TYP.
MAX.
UNIT
VCTL =Logic “0” , OUT=Open
1.50
10
µA
VCTL =Logic “1” , OUT=Open
220
320
VCTL =Logic “0”
VCTL =Logic “1”
Control Input Current
MIN.
0.8
V
2.4
VCTL =Logic “0”
0.01
1
VCTL =Logic “1”
0.01
1
Control Input Capacitance
1
Output MOSFET Resistance
110
µA
pF
150
mΩ
µS
Output Turn-On Rise Delay
RL = 10Ω each Output
100
Output Turn-On Rise Time
RL = 10Ω each Output
1000
2500
µS
Output Turn-Off Delay
RL = 10Ω each Output
0.8
20
µS
Output Turn-Off Fall Time
RL = 10Ω each Output
0.7
20
µS
10
µA
1.25
A
Output Leakage Current
Current Limit Threshold
0.6
1.0
Overtemperature Shutdown
TJ Increasing
135
Threshold
TJ Decreasing
125
Error Flag Output Resistance
Error Flag Off Current
UVLO Threshold
DS-1527-00
°C
VIN = 5V , IL =10 mA
10
25
VIN = 3.3V , IL =10mA
15
40
0.01
1
VFLG = 5V
VIN Increasing
2.6
VIN Decreasing
2.4
Ω
µA
V
May 31, 00
3
AIC1527
n BLOCK DIAGRAM
OUTA
DRIVER
CTLA
CURRENT
LIMIT
THERMAL
SHUTDOWN
UVLO
CHARGE PUMP
CURRENT
LIMIT
CS
IN(A/B)
CS
CTLB
FLGB
DRIVER
POWER N-MOSFET
CHARGE PUMP
POWERE N-MOSFET
FLGA
OUTB
OUTC
DRIVER
CTLC
CURRENT
LIMIT
THERMAL
SHUTDOWN
UVLO
CHARGE PUMP
CURRENT
LIMIT
CTLD
FLGD
DRIVER
CS
IN(C/D)
CS
POWER N-MOSFET
CHARGE PUMP
POWERE N-MOSFET
FLGC
OUTD
DS-1527-00
May 31, 00
4
AIC1527
n TYPICAL
PERFORMANCE CHARACTERISTICS
Output On Resistance vs. Temperature
118
150
116
140
ON Resistance (mΩ)
ON Resistance (mΩ)
ON Resistance vs. Supply Voltage
RL=47Ω
T=25°C
114
112
110
108
106
130
120
110
RL=47Ω
VIN=5V
100
90
104
3.0
3.5
4.0
4.5
80
5.5
5.0
-40
-20
0
Supply Voltage (V)
UVLO Threshold Voltage vs. Temperature
Supply Current (µA)
Threshold Voltage (V)
2.6
Falling
2.4
2.2
100
240
200
Both Switches ON
160
-20
0
20
40
Temperature (° C)
60
80
120
3
100
4
5
6
7
8
Supply Voltage (V)
OFF State Current vs. Temperature
ON State Supply Current vs. Temperature
260
0.20
240
0.16
Supply Current (µA)
Supply Current (µA)
80
280
Rising
220
All Switches ON
200
0.12
All Switches OFF
0.08
0.04
180
DS-1527-00
60
320
2.8
160
-40
40
ON State Supply Current vs. Supply Voltage
3.0
2.0
-40
20
Temperature (°C)
-20
0
20
40
Temperature (° C)
60
80
100
0
-40
-20
0
20
40
Temperature (°C)
60
80
100
May 31, 00
5
AIC1527
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
OFF State Current vs. Supply Voltage
Control Threshold vs. Supply Voltage
0.20
1.7
1.6
Enable voltage
Supply current (µA)
0.16
0.12
All Switches OFF
0.08
VEN Rising
1.5
1.4
VEN Falling
1.3
1.2
0.04
1.1
0
3
4
5
6
7
8
Supply Voltage (V)
1.0
3.0
3.5
4.0
4.5
5.0
5.5
Supply Voltage (V)
Turn-On, Turn-Off Characteristics
6
Control (V)
4
2
0
Outpu (V)
5
3
RL=47Ω
1
-1
0.0
0.5
1.0
1.5
2.0
2.5
Time (mS)
n PIN DESCRIPTION
PIN 1(5):CTLA(C)- TTL compatible control input. It
controls the turn-on/turn-off of
channel A(C) MOSFET. Active
High for AIC1527-1 and active
low for AIC1527-0.
PIN 2(6):FLGA(C)- An active-low and open-drain
fault flag output for channel A. It
can indicate current limit if
CTLA(C) is active. In normal
mode operation (CTLA(C) or/and
CLTB(D) is active), it also can
indicate thermal shutdown or
undervoltage.
PIN 3(7):FLGB(D)- An active-low and open-drain
fault flag output for channel
DS-1527-00
B(D). It can indicate current
limit if CTLB(D) is active. In
normal
mode
operation
(CTLB(D) or/and CLTA(C) is
active), it also can indicate
thermal
shutdown
or
undervoltage.
PIN 4(8):CTLB(D)- TTL compatible control input. It
controls the turn-on/turn-off of
channel B(D) MOSFET. Active
High for AIC1527-1 and active
low for AIC1527-0.
PIN 9(13):OUTD(B)-Channel D(B) MOSFE switch
output.
May 31, 00
6
AIC1527
PIN 10,14:GND
- Chip power return, Connect both
pins to ground.
PIN 11:IN(C/D) - Channel C AND D power supply
input.
PIN12(16):OUTC(A) -Channel C(A) MOSFET
switch output.
PIN15: IN(A/B) - Channel A and B power supply
input.
n APPLICATION INFORMATIONS
l Error Flag
An open-drained output of an N-channel MOSFET, the
switches is independent of each other in the case of
overcurrent fault.
FLG output is pulled low to signal the following fault
conditions: input undervoltage, output current limit,
and thermal shutdown.
l Supply Filtering
A 0.1uF to 1uF bypass capacitor from IN to GND,
located near the device, is strongly recommended to
l 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
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.
l Transient Droop Requirements
AIC1527 allows a minimum current of 0.5A through the
USB support dynamic attachment (hot plug-in) of
MOSFET switches. A current limit condition will signal
peripherals. A current surge is caused by the input
the error flag.
capacitance of downstream device. Ferrite beads are
recommended in series with all power and ground
connector pins. Ferrite beads reduce EMI and limit the
l Thermal Shutdown
When the chip temperature exceeds 135°C for any
reason other than overcurrent fault of either one of the
four MOSFET switches, the thermal shutdown
inrush current during hot-attachment by filtering highfrequency signals.
l Short Circuit Transient
function turns off all MOSFET switches and signal the
error flag. A hysteresis of 10℃prevents the MOSFETs
Bulk capacitance provides the short-term transient
from turning back on until the chip temperature drops
to below 125 ℃ . However, if thermal shutdown is
33uF, 16V tantalum or 100uF, 10V electrolytic
triggered by chip temperature rise due to overcurrent
per port should provide transient drop protection.
current needed during a hot-attachment event. With a
capacitor mounted close to downstream connector
fault condition of either one of the MOSFET switches,
the thermal shutdown function will only turn off the
l Printed Circuit Layout
switch that is in overcurrent condition and the other
The power circuitry of USB printed circuit boards
switch can still remain its normal operation. In other
requires a customized layout to maximize thermal
words, the thermal shutdown function of the four
dissipation and to minimize voltage drop and EMI.
DS-1527-00
May 31, 00
7
AIC1527
n PHYSICAL DIMENSIONS
l
16 LEAD PLASTIC SO (150 mil) (unit: mm)
D
H
E
SYMBOL
MIN
MAX
A
1.35
1.75
A1
0.10
0.25
B
0.33
0.51
C
0.19
0.25
D
9.80
10.00
E
3.80
4.00
e
e
H
5.80
6.20
L
0.40
1.27
SYMBOL
MIN
MAX
A1
0.381
—
A2
2.92
4.96
b
0.35
0.56
C
0.20
0.36
D
18.66
19.69
E
7.62
8.26
E1
6.09
7.12
A1
A
1.27 (TYP)
B
L
C
l 16 LEAD PLASTIC DIP (unit: mm)
D
E1
E
A2
A1
C
L
eB
b
DS-1527-00
e
e
2.54(TYP)
eB
—
10.92
L
2.92
3.81
May 31, 00
8
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