TS2021 0.5A Single Channel USB Power Switch SOT-25 Pin Definition: 1. CTL 2. Ground 3. FLG 4. Input 5. Output General Description The TS2021 is integrated 85m high-side power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. This switch operates with input ranging from 3.2V to 6.5V, making it ideal for 5V system. The protection includes current limiting with foldback, short circuit and thermal shutdown. The TS2021 is ideal for any system where current limiting and power control are desired. The TS2021 has low quiescent current and small package, which is particularly suitable in battery powered portable application. 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. Ordering Information 0.5A Continuous Load Current High-Side MOSFET Switch TS2021CX5 RFG SOT-25 3Kpcs / 7” Reel Note: “G” denote for Halogen Free Product 40uA Quiescent Supply Current 1uA Maximum Shutdown Supply Current 3.2V to 6.5V Input Voltage Range Open-Drain Over-Current Flag Output Under-Voltage Lockout High-Side Power Protection Switch Current-Limit / Short Circuit Protection Hot Plug-In Power Supplies Thermal Shutdown Protection under Over Battery-Charger Circuits Current Condition Portable Application Under Voltage Lockout Ensures that Switch is off Digital Television Soft Start prevents large Inrush Current. No Reverse Current when Power off. Enable Active-Low Absolute Maximum Rating Parameter Operating Temperature Range Junction Temperature Power Dissipation Storage Temperature Range Thermal Resistance from Junction to case Thermal Resistance from Junction to ambient θJA 250 Note: Absolute maximum rating are those values beyond which the life of a device may be impaired

TS2021 0.5A Single Channel USB Power Switch Electrical Characteristics (VIN=5V, CIN=COUT=1uF, TA=25° unless otherwise noted) C, Supply Current Shutdown Supply Current Input Voltage Current Limit Threshold Output MOSFET Resistance Output Turn-On Rise Time each output Output Turn-Off Fall Time each output low-to-high transition High-to-low transition Output Leakage Current Over Temperature Shutdown Threshold Under Voltage Lockout Under Voltage Lockout Hysteresis Over Current Flag Response Delay FLG Off-State Current IFLG-OFF --1 uA Note: Specifications are production tested at TA=25. Specifications...

TS2021 0.5A Single Channel USB Power Switch Typical Application Circuit Block Diagram Switch enable Chip power ground Fault status. A logic low on this pin indicates the switch is in current limit or has been shutdown by the thermal protection circuit Power supply input MOSFET switch output

TS2021 0.5A Single Channel USB 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...

Supply Voltage (V) Temperature (°C)

TS2021 0.5A Single Channel USB 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

TS2021 0.5A Single Channel USB Power Switch

TS2021 0.5A Single Channel USB 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...