TS2023 1a single channel usb power switch 1/8 version: a11 sot - 25 general description the TS2023 is integrated 85m high-side power switch for self-powered and bus-po wered 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 foldb ack, short circuit and thermal shutdown. the TS2023 is ideal for any system where current limiting and power control are desired. the TS2023 has low quiescent current and small package, which is particularly suitable in ba ttery powered portable application. guaranteed mini mum output rise time limits inrush current during hot p lug-in as well as minimizing emi and prevents the v oltage at upstream port from dropping excessively. features 85m high-side mosfet switch 1a continuous load current 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 current-limit / short circuit protection thermal shutdown protection under over current condition under voltage lockout ensures that switch is off at start up soft start prevents large inrush current. no reverse current when power off. enable active-low ordering information note: g denote for halogen free product part no. package packing TS2023cx5 rfg sot-25 3kpcs / 7 reel applications usb power management high-side power protection switch hot plug-in power supplies battery-charger circuits portable application digital television absolute maximum rating parameter symbol limit unit vin pin voltage v in 7 v ctl input voltage v ctl -0.3 ~ 7 v operating temperature range t op -40 to +85 c junction temperature t j +125 c power dissipation p d 350 mw storage temperature range t stg -65 to +150 c thermal resistance from junction to case jc 115 c/w thermal resistance from junction to ambient ja 250 c/w note: absolute maximum rating are those values beyond wh ich the life of a device may be impaired pin definition : 1. ctl 2. ground 3. flg 4. input 5. output
TS2023 1a single channel usb power switch 2/8 version: a11 electrical characteristics (v in =5v, c in =c out =1uf, t a =25c, unless otherwise noted) characteristics symbol conditions min typ max units input voltage v in 3.2 -- 6.5 v supply current i s -- 40 -- ua shutdown supply current i sd v in =3.6v, v en =0v -- 0.1 1 a current limit threshold i limit 1.1 1.5 2 a output mosfet resistance rds (on) -- 85 -- m output turn-on rise time t on r load =10 each output -- 400 -- us output turn-off fall time t off r load =10 each output -- 0.7 20 us en input threshold v en low-to-high transition -- -- 1.2 v high-to-low transition 0.4 -- -- output leakage current i leakage en=0, v out =0v -- 0.5 1 ua over temperature shutdown threshold otp t j increasing -- 145 -- c t j decreasing -- 125 -- c under voltage lockout uvlo -- 2.5 -- v under voltage lockout hysteresis uvlo hyteresis i out =0m~150ma -- 200 -- mv over current flag response delay flg delay v out =0v until flg low 4 9 -- ms flg output low voltage v flg-low -- -- 0.4 v flg off-state current i flg-off -- -- 1 ua note: specifications are production tested at t a =25. specifications over the -40c to 85c operatin g temperature range are assured by design. characterization and c orrelation with statistical quality controls (sqc).
TS2023 1a single channel usb power switch 3/8 version: a11 typical application circuit block diagram pin function description pin no. pin name pin description 1 ctl switch enable 2 gnd chip power ground 3 flg fault statu s. a logic low on this pin indicates the switch is in current limit or has been shutdown by the the rmal protection circuit 4 vin power supply input 5 vout mosfet switch output
TS2023 1a single channel usb power switch 4/8 version: a11 application information flag output an error flag is an open-drained output of an n-cha nnel mosfet. flag output is pulled low to signal th e following fault conditions: input under-voltage, output curre nt limit, and thermal shutdown. the current limit f lag response delay time is 9ms. current limit the current limit threshold is preset internally. i t protects the output mosfet switches from damage r esulting from undesirable short circuit conditions or excess inru sh current, which is often encountered during hot p lug-in. the error flag signals when any current limit condition s occur. thermal shutdown when temperature of TS2023 exceeds 145oc for any re asons, the thermal shutdown function turns mosfet switch off and signals the error flag. a hysteresis of 20oc prevents the mosfets from turning back on until the chip temperature drops below 125oc. enable control enable must be driven logic low for a clearly defin ed input. floating the input may cause unpredictabl e operation under-voltage lockout uvlo (under-voltage lockout) prevents the output mo sfet from turning on until input voltage exceeds 2. 5v typically. after the switch turns on, if the input voltage drops below 2.3v 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 s hort may cause sufficient ringing on the input (fro m supply lead inductance) to damage internal control circuitry transient requirements usb supports dynamic attachment (hot plug-in) of pe ripherals. a current surge is caused by the input c apacitance 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 durin g hot attachment by filtering high-frequency signal s. short circuit transient bulk capacitance provides the short-term transient current needed during a hot-attachment event. a 22u f/10v ceramic capacitor mounted close to downstream conne ct each port should provide transient drop protecti on printed layout circuit the power circuitry of usb printed circuit boards r equires a customized layout to maximize thermal dis sipation and to minimize voltage drop and emi
TS2023 1a single channel usb power switch 5/8 version: a11 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
TS2023 1a single channel usb power switch 6/8 version: a11 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
TS2023 1a single channel usb power switch 7/8 version: a11 sot-25 mechanical drawing sot-25 dimension dim millimeters inches min max min max. a+a1 0.09 1.25 0.0354 0.0492 b 0.30 0.50 0.0118 0.0197 c 0.09 0.25 0.0035 0.0098 d 2.70 3.10 0.1063 0.1220 e 1.40 1.80 0.0551 0.0709 e 1.90 bsc 0.0748 bsc h 2.40 3.00 0.09449 0.1181 l 0.35 bsc 0.0138 bsc ? 1 0o 10o 0o 10o s1 0.95 bsc 0.0374 bsc
TS2023 1a single channel usb power switch 8/8 version: a11 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 erro rs 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 tscs terms and co nditions of sale for such products, tsc assumes no liability wh atsoever, and disclaims any express or implied warr anty, relating to sale and/or use of tsc products includi ng liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, cop yright, or other intellectual property right. the products shown herein are not designed for use in medical, life-saving, or life-sustaining applica tions. customers using or selling these products for use i n such applications do so at their own risk and agr ee to fully indemnify tsc for any damages resulting from such i mproper use or sale.
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