AIC1529
Quad USB High-Side Power Switch
FEATURES
• 110mΩ (5V Input) High-Side MOSFET Switch. 500mA Continuous Load Current per Channel. 220µA Typical On-State Supply Current. 1µA Typical Off-State Supply Current. Current-Limit / Short Circuit Protection. Thermal Shutdown Protection under Overcurrent Condition. Undervoltage Lockout Ensures that Switch is off at Start Up. Output can be Forced Higher than Input (Off-State). Open-Drain Fault Flag. Slow Turn ON and Fast Turn OFF. Enable Active-High or Active-Low. Guaranteed minimum output rise time limits inrush current during hot plug-in as well as
DESCRIPTION
The AIC1529 is a quad high-side power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. Both high-side switches are 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 1.3A, and the thermal shutdown functions of the power switches independently control their channel under overcurrent condition.
APPLICATIONS
• USB Power Management. Hot Plug-In Power Supplies. Battery-Charger Circuit.
minimizing EMI and prevents the voltage at upstream port from dropping excessively.
Analog Integrations Corporation
Si-Soft Research Center 3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C. TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw
DS-1529G-01 121808
1
AIC1529
TYPICAL APPLICATION CIRCUIT
VCC 5.0V Ferrite Bead + 33µF VBUS
10K 10K
+
33µF
D+ 0.01µF DGND DATA
*
4.50V to 5.25V Upstream VBUS 100mA max
VBUS D+ DGND + 1µF CIN
10K 10K
AIC1734 USB Controller
IN OUT VIN ON/OFF OVERCURRENT + 10µF OVERCURRENT ON/OFF COUT ON/OFF OVERCURRENT OVERCURRENT ON/OFF GND
AIC1529
OUTA CTLA FLGA IN(A/B) FLGB GND1 CTLB CTLC OUTB FLGC OUTC FLGD IN(C/D) CTLD GND1 OUTD B DATA
VBUS
+
33µF 0.1µF
D+ 0.01µF DGND DATA VBUS
*
GND
DATA
0.1µF
+
33µF
D+ 0.01µF DGND
*
VBUS
*
33µF, 16V Tantalum, or 100µF, 10V Electrolytic Bold line indicate high- current traces
+
33µF
D+ 0.01µF DGND DATA
*
4-Port Self-Powered Hub
ORDERING INFORMATION
AIC1529-XXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE (DIP is not available in TR type) PACKAGING TYPE N: DIP-16 S: SOP-16 C: COMMERCIAL P: LEAD FREE COMMERCIAL G: GREEN PACKAGE CONTROL POLARITY 0: Active Low 1: Active High Example: AIC1529-0CSTR Active Low Version, in SOP-16 Package & Taping & Reel Packing Type AIC1529-0PSTR Active Low Version, in Lead Free SOP-16 Package & Taping & Reel Packing Type PIN CONFIGURATION
TOP VIEW
OUTA 1 GND
2
16 CTLA 15 FLGA 14 FLGB 13 CTLB 12 OUTC 11 IN(C/D) 10 GND 9
IN(A/B) 3 OUTB 4 CTLC
5
FLGC 6 FLGD 7 CTLD
8
OUTD
2
AIC1529
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VIN) Fault Flag Voltage (VFLG) Fault Flag Current (IFLG) Control Input (VCTL) Operating Temperature Range Storage Temperature Range (Assume no Ambient Airflow, no Heatsink) Junction Temperature Range Lead Temperature (Soldering 10 sec) 7.0V 7.0V 50mA -0.3V ~7V -40°C~85°C -65°C ~ 150°C DIP-16 SOP-16 100°C/W 160°C/W 125°C 260°C
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
TEST CIRCUIT
1 0K + 5V
θ
Thermal Resistance,
JA
(Junction to Ambient)
ON C TLA O FF F LG A F LG B C TLB C TLC F LG C C TLD F LG D IN ( A/B ) 0 .1 µ F GND O U TB OU TC IN ( C /D ) GND OU TD 10Ω O U TA
A IC1 5 2 9
(For output reference only)
3
AIC1529
ELECTRICAL CHARACTERISTICS
(VIN= 5V, TA=25°C, unless otherwise specified.) (Note 1) PARAMETERS
Supply Current
CONDITIONS
VCTL =Logic “0”, OUT=Open VCTL =Logic “1”, OUT=Open
MIN.
TYP.
0.75 110
MAX.
5 160 0.8
UNIT
µA
Control Input Voltage
VCTL =Logic “0” VCTL =Logic “1” VCTL =Logic “0” 2.4 0.01 0.01 1 110 RL = 10Ω each Output RL = 10Ω each Output RL = 10Ω each Output RL = 10Ω each Output 300 1000 0.8 0.7
V
Control Input Current Control Input Capacitance Output MOSFET Resistance Output Turn-On Rise Delay Output Turn-On Rise Time Output Turn-Off Delay Output Turn-Off Fall Time Output Leakage Current Current Limit Threshold Over Temperature Shutdown Threshold Error Flag Output Resistance Error Flag Off Current UVLO Threshold
1 1
VCTL =Logic “1”
µA pF
150
mΩ µS
2500 20 20 10
µS µS µS µA A °C
1 TJ Increasing TJ Decreasing VIN = 5V , IL =10 mA VIN = 3.3V , IL =10mA VFLG = 5V VIN Increasing VIN Decreasing 135 125 10 15 0.01 2.6 2.4
2
25 40 1
Ω µA V
Note 1: Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC).
4
AIC1529
TYPICAL PERFORMANCE CHARACTERISTICS
126
170 160
ON Resistance (m )
ON Resistance (m )
125
150 140 130 120 110
124
123
RL=47 TA=25° C
122
RL=47
100 90
121
3.0
3.5
4.0
4.5
5.0
5.5
-40
-20
0
20
40
60
80
100
Supply Voltage (V) Fig. 1 ON Resistance vs. Supply Voltage
Fig. 2
Temperature (° C) ON Resistance vs. Temperature
160
0.10
Both Switches ON
Both Switches OFF
Supply Current (µA)
120
Supply Current (µA)
3 4 5 6 7 8
140
0.08
0.06
100
0.04
80
0.02
60
0.00 3 4 5 6 7
Supply Voltage (V) Fig. 3 ON-State Supply Current vs. Supply Voltage
8
9
10
11
12
Fig. 4
Supply Vlotage (V) OFF-State Supply Current vs. Supply Voltage
110 105
0.10
Supply Current (µA)
Both Switches ON
100 95 90 85 80 75 -40
Supply Current (µA)
0.08
0.06
Both Switches OFF
0.04
0.02
-20
0
20
40
60
80
100
0 -40
-20
0
20
40
60
80
100
Temperature (° C) Fig. 5 ON-State Supply Current vs. Temperature
Temperature (°C) Fig. 6 OFF-State Current vs. Temperature
5
AIC1529
TYPICAL PERFORMANCE CHARACTERISTICS
1.5
(Continued)
1.4
VCTL, 5V/div VEN Rising
Enable Voltage (V)
1.3
VOUT, 5V/div VEN Falling
1.2
1.1
IOUT, 200mA/div
1.0 3.0 3.5 4.0 4.5 5.0 5.5
Supply Voltage (V) Fig. 7 Control Threshold vs. Supply Voltage Fig. 8 Turn-On, Turn-Off Characteristics
VFLAG, 5V/div
VOUT, 5V/div Current Limit
IOUT, 1A/div
Fig. 9
Current Limit Response
6
AIC1529
BLOCK DIAGRAM
OUTA FLGA POWERE N-MOSFET
DRIV ER CTLA CHARGE PUMP CURRENT LIMIT CS
THERMAL SHUTDOWN
UVLO
IN(A/B)
CHARGE PUMP CTLB FLGB
CURRENT LIMIT
CS
DRIVER
POWER N-MOSFET
OUTB OUTC FLGC POWERE N-MOSFET
DRIV ER CTLC CHARGE PUMP CURRENT LIMIT CS
THERMAL SHUTDOWN
UVLO
IN(C/D)
CHARGE PUMP CTLD FLGD
CURRENT LIMIT
CS
DRIVER
POWER N-MOSFET
OUTD
7
AIC1529
PIN DESCRIPTIONS
OUTA (B,C,D) -Channel A (B,C,D) MOSFET switch output. GND Chip power return, Connect both pins to ground. IN(A/B, C/D) - Channel A and B (C and D) power supply input. CTLA (B,C,D)- Controls the turn-on/turn-off of channel A (B,C,D) MOSFET with TTL as a control input. Active high for AIC1529-1 and active low for AIC1529-0. FLGA (B,C,D)- An active-low and open-drained fault flag output for channel A (B,C,D). FLGA (B,C,D) is an indicator for current limit when CTLA (B,C,D) is active. In normal mode operation (CTLA(C) or/and CLTB(D) is active), it also can indicate thermal undervoltage. shutdown or
APPLICATION INFORMATION
Error Flag
An error Flag is an open-drained output of an N-channel MOSFET. FLG output is pulled low to signal the following fault conditions: input undervoltage, output current limit, and thermal shutdown. condition of either one of the MOSFET switches, the thermal shutdown function will only turn off the switch that is in overcurrent condition and the other switch can still remain its normal operation. In other words, the thermal shutdown function of the two switches is independent of each other in the case of overcurrent fault.
Current Limit
The current limit threshold is preset internally. It protects the output MOSFET switches from damage resulting from undesirable short circuit conditions or excess inrush current, which is often encountered during hot plug-in. The low limit of the current limit threshold of the AIC1529 allows a minimum current of 1A through the MOSFET switches. The error flag signals when any current limit conditions occur.
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.
Transient Requirements
USB supports 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 by inrush filtering current during hot-attachment signals. high-frequency
Thermal Shutdown
W hen temperature of AIC1529 exceeds 135°C for any reasons, the thermal shutdown function turns both MOSFET switches off and signals the error flag. A hysteresis of 10°C prevents the MOSFETs from turning back on until the chip temperature drops below 125°C. However, if thermal shutdown is triggered by chip temperature rise resulting from overcurrent fault
8
AIC1529
Short Circuit Transient
Bulk capacitance provides the short-term transient current needed during a hot-attachment event. A 33µF/16V tantalum or a 100µF/10V electrolytic capacitor mounted close to downstream connector each 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.
9
PHYSICAL DIMENSIONS (unit: mm)
SOP-16
AIC1529
10
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L O B M Y S
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AIC1529
DIP-16
Note:
Information provided by AIC is believed to be accurate and reliable. However, we cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AIC product; nor for any infringement of patents or other rights of third parties that may result from its use. We reserve the right to change the circuitry and specifications without notice. Life Support Policy: AIC does not authorize any AIC product for use in life support devices and/or systems. Life support devices or systems are devices or systems which, (I) are intended for surgical implant into the body or (ii) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.
11
96.91
29.01
.XAM
59.4
33.5
65.0
53.0
62.8
18.3
11.7
87.1
SRETEMILLIM
CSB 45.2
CSB 26.7
61-PID
66.81
.NIM
29.2
29.2
83.0
63.0
02.0
31.0
01.6
26.7
41.1
ENALP EGUAG
c
A-A NOITCES
1A
2A
1D
1E
L O B M Y S
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