AIC6193 Single Channel Bare-Bone USB Switch FEATURES DESCRIPTION 170m High-Side MOSFET Switch. The AIC6193 is an integrated 170m high-side 1A Continuous Load Current. power switch, the preferred circuit protection 40A Quiescent Supply Current. method for computer, consumer, multimedia 3.2V to 5.5V Input Voltage Range. and portable applications. AIC6193 can protect Under-Voltage Lockout. sensitive electronics from damage caused by Current-Limit / Short Circuit Protection. both overcurrent and overtemperature events. Thermal Shutdown Protection under Over Current The protection includes current limiting with Condition. foldback, short circuit, soft start and thermal Under Voltage Lockout Ensures that Switch is off shutdown under overcurrent occurs. at Start Up. Guaranteed minimum output rise time limits Soft Start prevents large Inrush Current. inrush current during hot plug-in as well as No Reverse Current when Power off. minimizing EMI and prevents the voltage at Available in SOT-23 Packages. upstream port from dropping excessively. APPLICATIONS USB Power Management High-Side Power Protection Switch Hot Plug-In Power Supplies Battery-Charger Circuits Portable Application. Digital televisions Computer Multimedia Mobile Phones Analog Integrations Corporation Si-Soft Research Center DS-6193G-01 20110310 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 AIC6193 TYPICAL APPLICATION CIRCUIT VIN 1 VIN VOUT GND CIN 1uF AIC6193 3 2 VOUT + COUT 100uF ORDERING INFORMATION AIC6193X XX XX Package Type Configuration PACKING TYPE TR: TAPE & REEL BG: BAG U3 (SOT-23) TOP VIEW 1: VIN 2: VOUT 3: GND 3 PACKAGE TYPE U3: SOT-23 G: Green Package 1 2 Example: AIC6193GU3TR In SOT-23 Green package and TAPE & REEL packing. 2 AIC6193 ABSOLUTE MAXIMUM RATINGS Supply Voltage (VIN) 6.0V -40C~85C Operating Temperature Range 125C Junction Temperature -65C ~ 150C Storage Temperature Range 260C Lead Temperature (Soldering, 10sec) Thermal Resistance, θJC (Junction to Case) Thermal Resistance, θJA (Junction to Ambient) t SOT-23 SOT-23 115C/W 250C/W (Assume no Ambient Airflow, no Heatsink) Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. 3 AIC6193 ELECTRICAL CHARACTERISTICS (VIN= 5V, CIN=1μF, COUT = 100μF(Note 2), TA=25C, unless otherwise specified.) (Note 1) PARAMETERS CONDITIONS Input Voltage MIN. TYP. 3.2 Supply Current MAX. UNIT 5.5 V A 40 Current Limit Threshold 1.05 Output MOSFET Resistance 1.45 m S RL = 10 each Output 300 Output Turn-Off Fall Time RL = 10 each Output 0.7 2 Over Temperature Shutdown TJ Increasing 145 Threshold TJ Decreasing 125 Under Voltage Lockout Under Voltage Lockout Hysteresis A 170 Output Turn-On Rise Time Soft Start Time 1.80 20 S mS C 2.5 V 200 mV Note1: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). Note2: Electrolytic Capacitor is recommended for COUT capacitor. 4 AIC6193 TYPICAL PERFORMANCE CHARACTERISTICS 90.0 80.0 200.00 Switches ON 70.0 Supply Current (μA) Output MOSFET Resistance (mΩ) 250.00 150.00 100.00 60.0 50.0 40.0 30.0 20.0 50.00 IL=100mA 10.0 TA=25°C 0.00 TA=25°C 0.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 3.0 3.5 4.0 Supply Voltage (V) Fig. 1 Output MOSFET Resistance vs. Supply Voltage 5.0 5.5 6.0 Fig. 2 Supply Current vs. Supply Voltage 2.70 1.40 2.60 UVLO Threshold Voltage (V) 1.60 1.20 Current Limit (A) 4.5 Supply Voltage (V) 1.00 0.80 0.60 0.40 0.20 Rising 2.50 2.40 2.30 Falling 2.20 2.10 2.00 1.90 VIN=5V 1.80 0.00 -40 -20 0 20 40 60 80 -40 100 -20 0 20 Fig. 3 40 60 80 100 Temperature (℃) Temperature (℃) Fig. 4 UVLO Threshold Voltage vs. Temperature Current Limit vs. Temperature 60.00 Output MOSFET Resistance (mΩ) 200.00 Supply Current (μA) 50.00 40.00 30.00 20.00 10.00 150.00 100.00 50.00 VIN=5V VIN=5V 0.00 0.00 -40 -20 0 20 40 60 80 100 Temperature (℃) Fig. 5 Supply Current(A) vs. Temperature -40 -20 0 20 40 60 80 100 Temperature (℃) Fig. 6 Output MOSFET Resistance vs. Temperature 5 AIC6193 BLOCK DIAGRAM PIN DESCRIPTIONS PIN1 VIN: Power supply input. PIN2 VOUT: MOSFET switch output. PIN3 GND: Chip power ground. 6 AIC6193 APPLICATION INFORMATION Current Limit are recommended in series with all power and Current limiting is invoked when the load exceeds ground connector pins. Ferrite beads reduce EMI the set over-current threshold. It protects the and limit the inrush current during hot-attachment output MOSFET switches from damage resulting by filtering high-frequency signals. from undesirable short circuit conditions or excess Printed Circuit Layout inrush current, which is often encountered during The power circuitry of USB printed circuit boards hot plug-in. requires a customized layout to maximize thermal Thermal Shutdown dissipation and to minimize voltage drop and EMI When junction temperature of AIC6193 exceeds 145C for any reasons, the thermal shutdown function turns MOSFET switch off. A hysteresis of 20C prevents the MOSFETs from turning back on until the chip temperature drops below 125C. thermal shutdown circuit functions only when the switch is enabled. Under-voltage Lockout UVLO prevents the MOSFET switch from turning on until input voltage exceeds 2.5V typically. After the switch turns on, if input voltage drops below 2.3V typically, UVLO shuts off the output MOSFET. 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. Input transients must not exceed the maximum VIN voltage for a short duration. 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 7 AIC6193 PHYSICAL DIMENSIONS (unit: mm) SOT-23 PACKAGE OUTLINE DRAWING D A A E E1 e e1 SEE VIEW B WITH PLATING c A A2 b BASE METAL A1 SECTION A-A 0.25 S Y M B O L GAUGE PLANE SEATING PLANE L1 VIEW B θ L Note: 1. Refer to JEDEC MO-178. 2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall not exceed 10 mil per side. 3. Dimension "E1" does not include inter-lead flash or protrusions. 4. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact. SOT-23 MILLIMETERS MIN. MAX. A 0.95 1.45 A1 0.00 0.15 A2 0.90 1.30 b 0.30 0.50 c 0.08 0.22 D 2.80 3.00 E 2.60 3.00 E1 1.50 1.70 e 0.95 BSC e1 1.90 BSC L θ 0.60 0.30 0.60 REF L1 0° 8° 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. 8