AIC6188 1.0A Dual USB High-Side Power Switch FEATURES DESCRIPTION 2.7V to 6.5V Input Voltage Range The AIC6188 integrates dual 85m high-side 1.0A Dual Continuous Load Current • • • • • • • • • • • power switches for self-powered and +/-20% Current Limit Accuracy bus-powered 85mΩ High-Side P-MOSFET Switch applications. It operates with inputs ranging 20Ω Open-Drain Over-Current Flag Output from 2.7V to 6.5V, making it ideal for both 3 V 80uA Quiescent Supply Current and 5V systems. 150°C Thermal Shutdown Protection The protection includes current limiting with Short Circuit Current Fold-back Protection fold-back, short circuit and thermal shutdown 2.3V Under Voltage Lockout under over-current occurs. Fault current is Universal Serial Bus (USB) limited to typically 1.3A in accordance with the Soft Start prevents large Inrush Current USB power requirements. 9ms Error Flag Delay Time (AIC6188D) The AIC6188 is ideal for any system where current limiting and Reverse Current Blocking power control are desired. Enable Active-High or Active-Low Version Guaranteed minimum output rise time limits inrush current during hot plug-in as well as APPLICATIONS USB Power Management. Notebook PCs Battery-Charger Circuit. minimizing EMI and prevents the voltage at upstream port from dropping excessively. TYPICAL APPLICATION CIRCUIT AIC6188 Analog Integrations Corporation Si-Soft Research Center DS-6188G-01 20120209 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 1 AIC6188 ORDERING INFORMATION AIC6188X-XXXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE PIN CONFIGURATION PACKAGING TYPE S8: SOP-8 SOP-8 TOP VIEW CTLA 1 O FLGA 2 FLGB 3 G: GREEN PACKAGE CTLB 4 CONTROL POLARITY 0: Active Low 1: Active High 8 OUTA 7 IN 6 GND 5 OUTB Fault Flag Response Delay Time D: Delay 9ms Example: AIC6188D-0GS8TR Delay 9ms, Active Low Version, in SOP-8 Green Package & Taping & Reel Packing Type ABSOLUTE MAXIMUM RATINGS Supply Voltage (VIN) 7.0V Fault Flag Voltage (VFLG) 7.0V Control Input (VCTL) -0.3V ~7V -40C~85C Operating Temperature Range 150C Junction Temperature -65C ~ 150C Storage Temperature Range 260C Lead Temperature (Soldering, 10sec) Thermal Resistance, θJA (Junction to Ambient) SOP-8 160C/W (Assume no Ambient Airflow, no Heatsink) Thermal Resistance, θJC (Junction to Case) SOP-8 …..………………………… 40C /W Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. 2 AIC6188 ELECTRICAL CHARACTERISTICS (VIN= 5V, CIN=1uF, COUT=1uF, TA=25C, unless otherwise specified.) (Note 1) PARAMETERS CONDITIONS Supply Voltage Supply Current TYP. 2.7 MAX. UNIT 6.5 V Switch On, OUT=Open 80 160 Switch Off, OUT=Open 0.2 2 1.3 1.8 VCTL =Logic “0” 0.01 0.1 VCTL =Logic “1” 0.01 0.1 EN Input Threshold Control Input Current MIN. 0.8 Switch On Resistance 85 A V A m Output Turn-On Rise Time RL = 10 each Output 1000 2500 S Output Turn-Off Fall Time RL = 10 each Output 0.7 20 S Output Leakage Current Switch Off, RL=0Ω 0.5 1 A 1.3 1.55 A Current Limit Threshold 1.05 Short Circuit Current Fold-back VOUT=0V Over Current Flag Response From fault condition to FLG Delay assertion Over Temperature Shutdown TJ Increasing 150 Threshold TJ Decreasing 120 Error Flag Output Resistance ISINK =1 mA 20 Error Flag Off Current VFLG = 5V 0.01 1 UVLO Threshold VIN Increasing 2.3 2.65 VIN Decreasing 4 1.8 0.85 A 9 ms 2.1 C A V 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). 3 AIC6188 TYPICAL PERFORMANCE CHARACTERISTICS Fig. 1 ON Resistance vs. Supply Voltage Fig. 3 ON-State Supply Current vs. Supply Voltage Fig. 5 Current Limit vs. Supply Voltage Fig. 2 ON Resistance vs. Temperature Fig. 4 ON-State Supply Current vs. Temperature Fig. 6 Current Limit vs. Temperature 4 AIC6188 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Fig. 7 Flag Delay Time vs. Supply Voltage Fig. 9 Control Input Voltage vs. Supply Voltage Fig. 8 Flag Delay Time vs. Temperature Fig. 10 UVLO Threshold Voltage vs. Temperature Fig. 11 Rising Time vs. Temperature 5 AIC6188 BLOCK DIAGRAM PIN DESCRIPTIONS PIN 1: CTLA - Controls the turn-on/turn-off of channel A MOSFET with TTL as a control input. Active high for AIC6188D-1 and active low for AIC6188D-0. PIN 4: CTLB - Controls the turn-on/turn-off of channel B MOSFET with TTL as a control input. Active High for AIC6188D-1 and active low for AIC6188D-0. PIN 2: FLGA - An active-low and open-drained fault flag output for channel A. FLGA is an indicator for current limit or thermal shutdown when CTLA is active. PIN 5: OUTB - Channel B MOSFET switch output. PIN 3: FLGB - An active-low and open-drained fault flag output for channel B. FLGB is an indicator for current limit or thermal shutdown when CTLB is active. PIN 8: OUTA - Channel A MOSFET switch output. PIN 6: GND - Power ground. PIN 7: IN - Power supply input. 6 AIC6188 APPLICATION INFORMATION Flag Output Supply Filtering An error Flag is an open-drained output of an A 1F bypass capacitor from USB IN to GND, N-channel MOSFET. Flag output is pulled low to located near the device, is strongly recommended signal the following fault conditions: input under to control supply transients. Without a bypass voltage, thermal capacitor, an output short may cause sufficient shutdown. The current limit flag response delay ringing on the input (from supply lead inductance) time is 9ms. to damage internal control circuitry. output current limit, and Current Limit Transient Requirements The current limit threshold is preset internally. It USB supports dynamic attachment (hot plug-in) of protects the output MOSFET switches from peripherals. A current surge is caused by the input damage resulting from undesirable short circuit capacitance of downstream device. Ferrite beads conditions or excess inrush current, which is often are recommended in series with all power and encountered during hot plug-in. The error flag ground connector pins. Ferrite beads reduce EMI signals when any current limit conditions occur. and limit the inrush current during hot-attachment Thermal Shutdown When temperature of AIC6188 exceeds 150C for by filtering high-frequency signals. Short Circuit Transient any reasons, the thermal shutdown function turns Bulk capacitance provides the short-term transient MOSFET switch off and signals the error flag. A current needed during a hot-attachment event. A hysteresis of 30C prevents the MOSFETs from 10F/10V ceramic capacitor mounted close to turning back on until the chip temperature drops downstream connector each port should provide below 120C. transient drop protection. Enable Control Enable must be driven logic high or logic low for a clearly defined input. Floating the input may cause unpredictable operation. 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. Under-voltage Lockout UVLO (under voltage lockout) prevents the output MOSFET from turning on until input voltage exceeds 2.3V typically. After the switch turns on, if the input voltage drops below 2.1V typically, UVLO shuts off the output MOSFET. 7 AIC6188 TYPICAL APPLICATION CIRCUIT VCC 5.0V 10K 4.50V to 5. 25V Upst ream VBUS 100mA max 10K AIC1722 VBUS IN D+ + 1F CIN DGND USB Controller + GND ON/OFF CTLA OUTA OVERCURRENT FLGA IN OVERCURRENT FLGB GND VIN OUT 10F COUT Ferrite Bead AIC6188 ON/OFF VBUS + 1F 100F * D+ 0. 01F DGND CTLB O UTB GND DATA DATA 33F, 16V Tantalum, or 100F, 10V Electrolytic Bold line indicate high- current traces + VBUS 100F * D+ 0. 01F DGND DATA Two-Port Self-Powered Hub 8 AIC6188 PHYSICAL DIMENSIONS (unit:mm) SOP-8 PACKAGE OUTLINE DRAWING h X 45° A A SEE VIEW B A e H E D WITH PLATING 0.25 C A1 B GAUGE PLANE SEATING PLANE θ L VIEW B BASE METAL SECTION A-A Note: 1. Refer to JEDEC MS-012AA. 2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall not exceed 6 mil per side . 3. Dimension "E" does not include inter-lead flash or protrusions. 4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact. Note: S Y M B O L SOP-8 MILLIMETERS MIN. MAX. A 1.35 1.75 A1 0.10 0.25 B 0.33 0.51 C 0.19 0.25 D 4.80 5.00 E 3.80 4.00 e 1.27 BSC H 5.80 6.20 h 0.25 0.50 L 0.40 1.27 θ 0° 8° 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. 9