TS2025 0.5A Dual Channel USB High-Side Power Switch SOP-8 Pin Definition: 1. CTLA 8. OUTA 2. FLGA 7. IN 3. FLGB 6. GND 4. CTLB 5. OUTB General Description The TS2025 is integrated 90mΩ high-side power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. This switch operates with input ranging from 2.7V to 6.5V, making it ideal for both 3V and 5V system. The protection includes current limiting with foldback, short circuit and thermal shutdown. Fault current is limited to typically 1A in accordance with the USB power requirements. The TS2025 is ideal for any system where current limiting and power control are desired. Guaranteed minimum output rise time limits inrush current during hot plug-in as well as minimizing EMI and prevents the voltage at upstream port from dropping excessively. Features ● 90mΩ High-Side MOSFET Switch ● 0.5A Dual Continuous Load Current Ordering Information Part No. Package Packing TS2025CS RLG SOP-8 2.5Kpcs / 13” Reel Note: “G” denote for Halogen Free Product ● 80uA Quiescent Supply Current ● 1uA Maximum Shutdown Supply Current ● 2.7V to 6.5V Input Voltage Range Applications ● 20Ω Open-Drain Over-Current Flag Output ● USB Power Management ● 2.3V Under-Voltage Lockout ● High-Side Power Protection Switch ● Current-Limit / Short Circuit Protection ● Hot Plug-In Power Supplies ● Thermal Shutdown Protection ● Battery-Charger Circuits ● Soft Start prevents large Inrush Current. ● Portable Application ● Reverse Current Blocking ● Digital Television ● 9ms Error Flag Delay Time ● Enable Active-Low ● 8KV Contact ESD Capable ● 15KV Air ESD Capable Absolute Maximum Rating Parameter Symbol Limit Unit VIN 7 V Fault Flag Voltage VFLG 7 V CTL Input Voltage VCTL -0.3 ~ 7 V Operating Temperature Range TOP -40 to +85 °C Junction Temperature TJ +125 °C Power Dissipation PD 350 mW TSTG -65 to +150 °C θJC 40 °C/W VIN Pin Voltage Storage Temperature Range Thermal Resistance from Junction to case Thermal Resistance from Junction to ambient θJA 160 °C/W Note: Absolute maximum rating are those values beyond which the life of a device may be impaired. The package 2 is placed on a 2 layers PCB with 2oz copper and 2 in , connected by 8 vias. 1/8 Version: A11 TS2025 0.5A Dual Channel USB High-Side Power Switch Electrical Characteristics (VIN=5V, CIN=COUT=1uF, TA=25°C, unless otherwise noted) Characteristics Input Voltage Symbol Conditions Min Typ 2.7 -- 6.5 V Switch On, Out=Open -- 80 160 uA Switch Off, Out=Open -- 0.2 2 uA VIN=3.6V, VEN=0V -- 0.1 1 µA VCTL=Logic ”0” -- 0.01 0.1 uA VCTL=Logic ”1” -- 0.01 0.1 uA VIN Supply Current IS Shutdown Supply Current ISD Max Units Control Input Current IIN-CTL Current Limit Threshold ILIMIT 0.6 1.0 1.25 A RDS(ON) -- 90 -- mΩ Output MOSFET Resistance Output Turn-On Rise Time TON RLOAD=10Ω each output -- 1000 2500 uS Output Turn-Off Fall Time TOFF RLOAD=10Ω each output -- 0.7 20 uS EN Input Threshold VEN low-to-high transition -- -- 1.8 High-to-low transition 0.6 -- -- V Output Leakage Current ILEAKAGE EN=0, VOUT=0V -- 0.5 1 uA Short Circuit Current Fold-back IFOLDBACK VOUT=0V -- 0.45 -- A TJ Increasing -- 150 -- °C TJ Decreasing -- 120 -- °C VIN Increasing -- 2.3 2.65 VIN Decreasing -- 2.1 -- 4 9 -- mS -- 20 -- Ω Over Temperature Shutdown Threshold Under Voltage Lockout Threshold Over Current Flag Response Delay FLG Output Resistance OTP UVLO FLGDELAY RFLG ISINK=1mA V FLG Off-State Current IFLG-OFF VFLG=5V -0.01 1 uA Note: Specifications are production tested at TA=25. Specifications over the -40°C to 85°C operatin g temperature range are assured by design. Characterization and correlation with statistical quality controls (SQC). 2/8 Version: A11 TS2025 0.5A Dual Channel USB High-Side Power Switch Typical Application Circuit Block Diagram Pin Function Description Pin NO. Pin Name Pin Description 1 CTLA 2 FLGA 3 FLGB Control the turn-on/turn-off of channel A MOSFET with TTL as a control input. 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 CTLB is active), its also can indicate thermal shutdown or under-voltage 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 CTLA is active), its also can indicate thermal shutdown or under-voltage 4 CTLB Control the turn-on/turn-off of channel B MOSFET with TTL as a control input. 5 OUTB Channel B MOSFET Switch Output 6 GND Power Ground 7 IN 8 OUTA Power Supply Input Channel A MOSFET Switch Output 3/8 Version: A11 TS2025 0.5A Dual Channel USB High-Side Power Switch Application Information Flag Output An error Flag is an open-drained output of an N-channel MOSFET. Flag output is pulled low to signal the following fault conditions: input under-voltage, output current limit, and thermal shutdown. The current limit flag response delay time is 9ms. 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 error flag signals when any current limit conditions occur. Thermal Shutdown When temperature of TS2025 exceeds 150ºC for any reasons, the thermal shutdown function turns MOSFET switch off and signals the error flag. A hysteresis of 30ºC prevents the MOSFETs from turning back on until the chip temperature drops below 120ºC. Enable Control Enable must be driven logic low for a clearly defined input. Floating the input may cause unpredictable operation 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. Supply Filtering A 1uF bypass capacitor from USB 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 inrush current during hot attachment by filtering high-frequency signals. Short Circuit Transient Bulk capacitance provides the short-term transient current needed during a hot-attachment event. A 10uF/10V ceramic capacitor mounted close to downstream connect each port should provide transient drop protection Printed Layout Circuit The power circuitry of USB printed circuit boards requires a customized layout to maximize thermal dissipation and to minimize voltage drop and EMI 4/8 Version: A11 TS2025 0.5A Dual Channel USB High-Side Power Switch Electrical Characteristics Curve Figure 1. ON Resistance vs. Supply Voltage Figure 2. ON Resistance vs. Temperature Figure 3. ON-State Current vs. Supply Voltage Figure 4. ON-State Current vs. Temperature Figure 5. Current Limit vs. Supply Voltage Figure 6. Current Limit vs. Temperature 5/8 Version: A11 TS2025 0.5A Dual Channel USB High-Side Power Switch Electrical Characteristics Curve Figure 7. Flag Delay Time vs. Supply Voltage Figure 8. Flag Delay Time vs. Temperature Figure 9. Enable Threshold vs. Supply Voltage Figure 10. UVLO Threshold vs. Temperature Figure 11. Rising Time vs. Supply Voltage 6/8 Version: A11 TS2025 0.5A Dual Channel USB High-Side Power Switch SOP-8 Mechanical Drawing DIM A B C D F G K M P R SOP-8 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX. 4.80 5.00 0.189 0.196 3.80 4.00 0.150 0.157 1.35 1.75 0.054 0.068 0.35 0.49 0.014 0.019 0.40 1.25 0.016 0.049 1.27BSC 0.05BSC 0.10 0.25 0.004 0.009 0º 7º 0º 7º 5.80 6.20 0.229 0.244 0.25 0.50 0.010 0.019 Marking Diagram Y = Year Code M = Month Code for Halogen Free Product (O=Jan, P=Feb, Q=Mar, R=Apl, S=May, T=Jun, U=Jul, V=Aug, W=Sep, X=Oct, Y=Nov, Z=Dec) L = Lot Code 7/8 Version: A11 TS2025 0.5A Dual Channel USB High-Side Power Switch Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 8/8 Version: A11