AIC6178D-1GS8TB

AIC6178 1.0A Dual USB High-Side Power Switch  FEATURES  DESCRIPTION  2.7V to 6.5V Input Voltage Range The AIC6178 integrates dual 100m high-side  1.0A Dual Continuous Load Current • • • • • • • • • • power switches for self-powered and 100mΩ High-Side P-MOSFET Switch bus-powered 20Ω Open-Drain Over-Current Flag Output applications. It operates with inputs ranging 80uA Quiescent Supply Current from 2.7V to 6.5V, making it ideal for both 3 V 150°C Thermal Shutdown Protection and 5V systems. Short Circuit Current Fold-back Protection The protection includes current limiting with 2.3V Under Voltage Lockout fold-back, short circuit and thermal shutdown Soft Start prevents large Inrush Current under over-current occurs. Fault current is Universal Serial Bus (USB) limited to typically 1.5A in accordance with the 9ms Error Flag Delay Time (AIC6178D) USB power requirements. Reverse Current Blocking The AIC6178 is ideal for any system where current limiting and Enable Active-High or Active-Low Version power control are desired. Guaranteed minimum output rise time limits  APPLICATIONS inrush current during hot plug-in as well as minimizing EMI and prevents the voltage at  USB Power Management.  Notebook PCs  Battery-Charger Circuit. upstream port from dropping excessively.  TYPICAL APPLICATION CIRCUIT AIC6178 Analog Integrations Corporation Si-Soft Research Center DS-6178G-02 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 AIC6178  ORDERING INFORMATION AIC6178X-XXXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE PIN CONFIGURATION PACKAGING TYPE S8: SOP-8 SOP-8 TOP VIEW CTLA 1 FLGA 2 FLGB 3 G: GREEN PACKAGE CTLB CONTROL POLARITY 0: Active Low 1: Active High 4 O 8 OUTA 7 IN 6 GND 5 OUTB Fault Flag Response Delay Time D: Delay 9ms N: No Example: AIC6178N-0GS8TR  No Delay, 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 -40C~85C Operating Temperature Range 150C Junction Temperature -65C ~ 150C Storage Temperature Range 260C Lead Temperature (Soldering, 10sec) Thermal Resistance, θJA (Junction to Ambient) SOP-8 160C/W (Assume no Ambient Airflow, no Heatsink) Thermal Resistance, θJC (Junction to Case) SOP-8…..……………..…………… 40C /W Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. 2 AIC6178  ELECTRICAL CHARACTERISTICS (VIN= 5V, CIN=1uF, COUT=1uF, TA=25C, 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 100 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 1.5 2 A Current Limit Threshold 1 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 0.87 A 9 ms 2.1 C  A 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). 3 AIC6178  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 AIC6178  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 AIC6178  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 AIC6178-1 and active low for AIC6178-0. PIN 4: CTLB - Controls the turn-on/turn-off of channel B MOSFET with TTL as a control input. Active High for AIC6178-1 and active low for AIC6178-0. 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 AIC6178  APPLICATION INFORMATION  Flag Output  Supply Filtering An error Flag is an open-drained output of an A 1F bypass capacitor from USB IN to GND, N-channel MOSFET. Flag output is pulled low to located near the device, is strongly recommended signal input to control supply transients. Without a bypass undervoltage, output current limit, and 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. the following fault conditions:  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 AIC6178 exceeds 150C 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 30C prevents the MOSFETs from 10F/10V ceramic capacitor mounted close to turning back on until the chip temperature drops downstream connector each port should provide below 120C. 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 (undervoltage 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 AIC6178  TYPICAL APPLICATION CIRCUIT VCC 5.0V 10K 4.50V to 5. 25V Upst ream VBUS 100mA max 10K AIC1722 VBUS IN D+ + 1F CIN DGND USB Controller + GND ON/OFF CTLA OUTA OVERCURRENT FLGA IN OVERCURRENT FLGB GND VIN OUT 10F COUT Ferrite Bead AIC6178 ON/OFF VBUS + 1F 100F * D+ 0. 01F DGND CTLB O UTB GND DATA DATA 33F, 16V Tantalum, or 100F, 10V Electrolytic Bold line indicate high- current traces + VBUS 100F * D+ 0. 01F DGND DATA Two-Port Self-Powered Hub 8 AIC6178  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