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| AIC1528 Dual USB High-Side Power Switch FEATURES * 110m (5V Input) High-Side MOSFET Switch. 500mA Continuous Load Current per Channel. 110A Typical On-State Supply Current. 1A 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 DESCRIPTION The AIC1528 is a dual high-side power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. Both high-side switches are MOSFET with 110m RDS(ON), which meets USB voltage drop requirements for maximum transmission wire length. Multi-purpose indicates open-drain fault flag output thermal over-current limiting, 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. (Off-State). Open-Drain Fault Flag. Slow Turn ON and Fast Turn OFF. Enable Active-High or Active-Low. APPLICATIONS USB Power Management. Hot Plug-In Power Supplies. Battery-Charger Circuit. 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-1528G-01 121508 1 AIC1528 TYPICAL APPLICATION CIRCUIT VCC 5.0V 4.50V to 5.25V Upstream VBUS 100mA max VBUS D+ DGND + 1F CIN + 33F 10K 10K AIC1722 IN OUT USB Controller VIN ON/OFF AIC1528 CTLA FLGA FLGB OUTA IN GND 0.1F VBUS + 33F D+ 0.01F DGND Ferrite Bead + GND OVERCURRENT OVERCURRENT ON/ GND 10F COUT * CTLB OUTB DATA DATA * 33F, 16V Tantalum, or 100F, 10V Electrolytic Bold line indicate high- current traces + VBUS 33F * 0.01F D+ DGND DATA Two-Port Self-Powered Hub ORDERING INFORMATION AIC1528-XXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE (DIP is not available in TR packing) PACKAGING TYPE N: DIP-8 S: SOP-8 O: MSOP-8 C: COMMERCIAL P: LEAD FREE COMMERCIAL G: GREEN PACKAGE CONTROL POLARITY 0: Active Low 1: Active High Example: AIC1528-0CSTR Active Low Version, in SOP-8 Package & Taping & Reel Packing Type AIC1528-1PSTR Active High Version, in Lead Free SOP-8 Package & Taping & Reel Packing Type PIN CONFIGURATION DIP-8 SOP-8 TOP VIEW CTLA 1 FLGA 2 FLGB 3 CTLB 4 MSOP-8 TOP VIEW CTLA 1 FLGA 2 FLGB 3 CTLB 4 8 OUTA 7 IN 6 OUTB 5 GND 8 OUTA 7 IN 6 GND 5 OUTB 2 AIC1528 ABSOLUTE MAXIMUM RATINGS Supply Voltage (VIN) Fault Flag Voltage (VFLG) Fault Flag Current (IFLG) Control Input (VCTL) Operating Temperature Range Junction Temperature Storage Temperature Range (Assume no Ambient Airflow, no Heatsink) Lead Temperature (Soldering, 10sec) 7.0V 7.0V 50mA -0.3V ~7V -40C~85C 125C -65C ~ 150C 100C/W 160C/W 180C/W 260C SOP-8 MSOP-8 (Junction to Ambient) DIP-8 Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. TEST CIRCUIT 10K R1 10K R2 ON 10 VCC +5V Thermal Resistance, JA CTLA OFF OUTA IN RL1 FLGA FLGB ON 0.1F C1 GND 10 CTLB OFF OUTB AIC1528 RL2 3 AIC1528 ELECTRICAL CHARACTERISTICS (VIN= 5V, TA=25C, unless otherwise specified.) (Note 1) PARAMETERS Supply Current Control Input Voltage 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 TJ Increasing TJ Decreasing VIN = 5V, IL =10 mA VIN = 3.3V, IL =10mA VFLG = 5V VIN Increasing VIN Decreasing 1 135 125 10 15 0.01 2.6 2.4 25 40 1 A V RL = 10 each Output RL = 10 each Output RL = 10 each Output RL = 10 each Output CONDITIONS VCTL =Logic "0", OUT=Open VCTL =Logic "1", OUT=Open VCTL =Logic "0" VCTL =Logic "1" VCTL =Logic "0" VCTL =Logic "1" 2.4 0.01 0.01 1 110 300 1000 0.8 0.7 2500 20 20 10 2 150 1 1 MIN. TYP. 0.75 110 MAX. 5 160 0.8 UNIT A V A pF m S S S S A A C Note 1: Specifications are production tested at TA=25C. Specifications over the -40C to 85C operating temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC). 4 AIC1528 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. 1 160 Temperature ( C) Fig. 2 0.10 ON Resistance vs. Supply Voltage ON Resistance vs. Temperature Both Switches ON Both Switches OFF Supply Current (A) 120 Supply Current (A) 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. 3 110 105 8 9 10 11 12 ON-State Supply Current vs. Supply Voltage Fig. 4 0.10 Supply Vlotage (V) OFF-State Supply Current vs. Supply Voltage Supply Current (A) Both Switches ON 100 95 90 85 80 75 -40 Supply Current (A) 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 AIC1528 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 AIC1528 BLOCK DIAGRAM OUTA FLGA Driver CTLA Charge Pump Thermal Shutdown Current Limit CS Power N-MOSFET UVLO IN Power N-MOSFET OUTB Charge Pump CTLB FLGB Current Limit CS Driver PIN DESCRIPTIONS PIN 1: CTLA - Controls the turn-on/turn-off of channel A MOSFET with TTL as a control input. Active high for AIC1528-1 and active low for AIC1528-0. PIN 2: FLGA - An active-low and open-drained fault flag output for channel A. FLGA is an indicator for current limit when CTLA is active. In normal mode operation (CTLA or/and CLTB is active), it also can indicate thermal shutdown or undervoltage. PIN 3: FLGB - An active-low and open-drained fault flag output for channel B. FLGB is an indicator for current limit when CTLB is active. In normal mode operation (CTLB or/and CLTA is active), it also can indicate thermal shutdown or undervoltage. PIN 4: CTLB - Controls the turn-on/turn-off of channel B MOSFET with TTL as a control input. Active High for AIC1528-1 and active low for AIC1528-0. PIN 5: OUTB - Channel B MOSFET switch output. PIN 6: GND PIN 7: IN - Power ground. - Power supply input. PIN 8: OUTA - Channel A MOSFET switch output. 7 AIC1528 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. Supply Filtering A 0.1F to 1F 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 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 AIC1528 allows a minimum current of 1A through the MOSFET switches. The error flag signals when any current limit conditions occur. 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 inrush current during hot-attachment signals. by filtering high-frequency Thermal Shutdown When temperature of AIC1528 exceeds 135C for any reasons, the thermal shutdown function turns both MOSFET switches off and signals the error flag. A hysteresis of 10C prevents the MOSFETs from turning back on until the chip temperature drops below 125C. However, if thermal shutdown is triggered by chip temperature rise resulting from overcurrent fault 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. Short Circuit Transient Bulk capacitance current provides needed the short-term during a transient hot-attachment event. A 33F/16V tantalum or a 100F/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. 8 PHYSICAL DIMENSIONS (unit: mm) SOP-8 AIC1528 9 8 72.1 05.0 02.6 CSB 72.1 00.4 00.5 52.0 15.0 52.0 57.1 .XAM SRETEMILLIM 8-POS 08.3 08.4 91.0 33.0 01.0 53.1 .NIM 0 04.0 52.0 08.5 L h H e E D C B 1A A L O B M Y S .tcaxe ylirassecen ton era snoisnemid hcni detrevnoc ,retemillim si noisnemid gnillortnoC .4 .snoisurtorp ro hsalf dael-retni edulcni ton seod "E" noisnemiD .3 . edis rep lim 6 deecxe ton llahs srrub etag ro noisurtorp ,hsalf dloM .srrub etag ro snoisurtorp ,hsalf dlom edulcni ton seod "D" noisnemiD .2 .AA210-SM CEDEJ ot refeR .1 :etoN B WEIV L ENALP GNITAES ENALP EGUAG A-A NOITCES LATEM ESAB 0 . 2 5 C B GNITALP HTIW A 1 A B WEIV EES h X 4 5 A A e HE D DIP-8 AIC1528 10 18.3 29.01 CSB 26.7 CSB 45.2 11.7 62.8 61.01 53.0 87.1 65.0 59.4 33.5 .XAM SRETEMILLIM 8-PID .NIM 01.6 26.7 31.0 10.9 02.0 41.1 63.0 29.2 83.0 29.2 L Be Ae e 1E E 1D D c 2b b 2A 1A A L O B M Y S .tcaxe ylirassecen ton era snoisnemid hcni detrevnoc ,retemillim si noisnemid gnillortnoC .4 .snoisurtorp ro hsalf dael-retni edulcni ton od "1E" dna"1D" noisnemiD .3 . edis rep lim 01 deecxe ton llahs srrub etag ro noisurtorp ,hsalf dloM .srrub etag ro snoisurtorp ,hsalf dlom edulcni ton seod "D" noisnemiD .2 AB100-SM CEDEJ ot refeR .1 :etoN A-A NOITCES c 2b LATEM ESAB GNITALP HTIW L A 1 e A A 1D b Be Ae 0 . 3 8 A A 2 ENALP EGUAG E E 1 D AIC1528 MSOP-8 D 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. .XAM 51.0 59.0 04.0 32.0 01.3 01.3 07.0 01.1 6 SRETEMILLIM CSB 09.4 CSB 56.0 8-POSM .NIM 09.2 09.2 50.0 57.0 52.0 04.0 31.0 0 1A 2A 1E L O B M Y S q A D E e b L c .tcaxe ylirassecen ton era snoisnemid hcni detrevnoc ,retemillim si noisnemid gnillortnoC .4 .snoisurtorp ro hsalf dael-retni edulcni ton seod "1E" noisnemiD .3 . edis rep lim 6 deecxe ton llahs srrub etag ro noisurtorp ,hsalf dloM .srrub etag ro snoisurtorp ,hsalf dlom edulcni ton seod "D" noisnemiD .2 .AA781-OM CEDEJ ot refeR .1 :etoN c E N A L P G NI T A E S ENALP E G UA G A - A N OI T C E S B W EI V E E S b LATE M ESAB G NI T A L P H TI W E A 0 . 2 5 A 2 E 1 A 1 A B W EI V A L e 11 |
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