IMP2524

IMP2524 IMP | Alldatasheet

Document overview

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Technical content

© 1999 IMP , Inc. 408-432-9100/www.impweb.com 1 Key Features

Applications

N USB host and self-powered hubs N USB video monitors N USB printers N USB Rev. 1.1 and 2.0 Compliant N Four independent switches N 2.7V to 5.5V input operation N Low MOSFET ON resistance – IMP2524: 0.1Ω, 0.14Ω maximum – IMP2527: 0.2Ω, 0.3Ω maximum N 500mA continuos load current per switch N Low supply current – 110µA ON-state current, 0.75µA OFF-state current N 1.25A maximum current limit, 750mA typical N Thermal shutdown 2.4V undervoltage lockout (UVLO) N Open-drain flag output – Undervoltage – Current limit – Thermal shutdown N Output can be force higher than input N Active HIGH(-1) and active LOW(-2) enable N 16-pin SO and DIP packages, Die available N Pin compatible with the Micrel MIC2524 and MIC2527 Typical Application IMP252IMP252 4/24/2 77 ADVANCE PRODUCT INFORMATIONPOWER MANAGEMENT Quad USB High-Side PQuad USB High-Side Poowwerer SwitcSwitch with with Fh Fault Detault Detectionection The IMP2524 and IMP2527 are complete power management solutions for bus-powered and self-powered USB hubs. Each device contains four independent power switches and fault detection logic. The IMP2524 channel resistance is a low 140m Ω maximum and the IMP2527 channel resistance is 300 Ω maximum. Both device operate with voltage inputs from 2.7V to 5.5V The IMP2524/2527 conform to the new USB 1.1 standard. Fault current is limited to 750mA typically, and a flag output for each switch conveys fault information to the local USB controller. The IMP252x “Soft-Start” function ramps the ON-current to eliminate any excessive voltage drop on the input side that could occur when capacitive loads are charged. Self-monitoring features include thermal shutdown to prevent catastrophic switch failure from high-current loads and undervoltage lockout (UVLO) that insures that the device remains OFF unless there is sufficient supply voltage present. The switch Enable input logic can interface with both 3.3V and 5V logic. Both active-HIGH (-1 devices) and active-LOW (-2 devices) enable logic versions are available. Supply current is a low 0.75µA when disabled and just 110µA when enabled The quad IMP2524/7 devices are available in 16-pin DIP and 16-pin SO packages and are pin compatible replacements for the Micrel MIC2524-1/-2 and MIC2527-1/2 devices. IMP offers a complete family of USB power management products. For single-switch applications see the IMP2525 and IMP2525A data sheets. The single-switch IMP2525A features a 0.07Ω switch resistance. For dual-switch applications, refer to the IMP2526 data sheet. Data Ferrite Bead INA/B INC/D OUTA OUTB OUTC OUTD GND GND ENA FLGA ENB FLGB ENC FLGC END FLGD IMP2524 IMP2527 USB Controller ON/OFF OVERCURRENTLDO OUTIN GND GND 27k 1/K6D F 0.01/K6D F 0.1/K6D F 10k 2524/27_01.eps 33/K6D F* GND D+ Downstream USB Port 1 500mA max. V BUS IMP2527 5.1V /KB1 3% 5V /KB1 1% or IMP2524 5V /KB1 3% 0.01/K6D F33/K6D F* GND D+ Downstream USB Port 2 500mA max. V BUS 4.7/K6D F + 0.01/K6D F33/K6D F* GND D+ Downstream USB Port 3 500mA max. V BUS 0.01/K6D F33/K6D F* GND D+ Downstream USB Port 4 500mA max. V BUS Bold/Blue lines indicate 0.1" wide, 1-oz. copper high-current traces. *33/K6D F, 16V tantalum or 100/K6D F, 10V electrolytic per port

2 408-432-9100/www.impweb.com © 1999 IMP , Inc. Pin Descriptions

Ordering Information

13 INA/B

14 OUTB

15 ENB

16 FLGB

9 FLGD

10 END

11 OUTD

12 GND

2524/27_02.eps IMP2524/27 SO/DIP 2524/27_03.eps OUTA3 INA/B GND GND FLGA ENA

1 Logic,

FLGB 16 Logic, Charge Pump OUTC6 INC/D5FLGC 8 ENC 7 Logic, Charge Pump OUTD11END 10 FLGD 9 Logic, Charge Pump IMP2524/27 rebmuNniPe maNn oitcnuF 1A GLF -rednuotesnopsernietatsWOL-evitcanaotniseogtuptuoniard-neposihT.tuptuoAgalFtluaF .snoitidnocnwodtuhslamrehtrotimiltnerruc,egatlov 2A NE HGIH-evitcahtoB.tupnicigollortnocrevirdhctiwsTEFSOMBlennahCehtsinipsihT.tupnIAelbanE .elbaliavaerasecivedcigol)xiffus2-(WOL-evitcadna)xiffus1-( 3A TUO .setatsFFOdnaNOotnidaolehtsevirdniptuptuoehT.)ecruoSTEFSOM(tuptuohctiwsA-lennahC 4D NG .rehtegot6dna4sniphtobtcennoC.CIehtfoyrtiucriclanretniehtrofnruterylppusrewoP.dnuorG 5D /CNI .noitcennocniardTEFSOMgnihctiwsehtsisihT.egatlovtupniylppusrewopevitisopDdnaClennahC .tiucricpmup-egrahcehtdnacigolehtroftupniegatlovylppusDlennahcdnaClennahcehtsitI 6C TUO .setatsFFOdnaNOotnidaolehtsevirdniptuptuoehT.)ecruoSTEFSOM(tuptuohctiwsC-lennahC 7C NE HGIH-evitcahtoB.tupnicigollortnocrevirdhctiwsTEFSOMBlennahCehtsinipsihT.tupnICelbanE .elbaliavaerasecivedcigol)xiffus2-(WOL-evitcadna)xiffus1-( 8C GLF -rednuotesnopsernietatsWOL-evitcanaotniseogtuptuoniard-neposihT.tuptuoCgalFtluaF .snoitidnocnwodtuhslamrehtrotimiltnerruc,egatlov 9D GLF -rednuotesnopsernietatsWOL-evitcanaotniseogtuptuoniard-neposihT.tuptuoDgalFtluaF .snoitidnocnwodtuhslamrehtrotimiltnerruc,egatlov 01D NE HGIH-evitcahtoB.tupnicigollortnocrevirdhctiwsTEFSOMBlennahCehtsinipsihT.tupnIDelbanE .elbaliavaerasecivedcigol)xiffus2-(WOL-evitcadna)xiffus1-( 11D TUO .setatsFFOdnaNOotnidaolehtsevirdniptuptuoehT.)ecruoSTEFSOM(tuptuohctiwsD-lennahC 21D NG .rehtegot6dna4sniphtobtcennoC.CIehtfoyrtiucriclanretniehtrofnruterylppusrewoP.dnuorG 31B /ANI .noitcennocniardTEFSOMgnihctiwsehtsisihT.egatlovtupniylppusrewopevitisopBdnaAlennahC .tiucricpmup-egrahcehtdnacigolehtroftupniegatlovylppusBlennahcdnaAlennahcehtsitI 41B TUO .setatsFFOdnaNOotnidaolehtsevirdniptuptuoehT.)ecruoSTEFSOM(tuptuohctiwsB-lennahC 51B NE HGIH-evitcahtoB.tupnicigollortnocrevirdhctiwsTEFSOMB-lennahCehtsinipsihT.tupnIBelbanE .elbaliavaerasecivedcigol)xiffus2-(WOL-evitcadna)xiffus1-( 61B GLF -rednuotesnopsernietatsWOL-evitcanaotniseogtuptuoniard-neposihT.tuptuoBgalFtluaF .snoitidnocnwodtuhslamrehtrotimiltnerruc,egatlov 10t72/4252 rebmuNniPc igoLelbanEe cnatsiseR”NO“lacipyTe gnaRerutarepmeTe gakcaP-sniP MWB1-4252PMIH GIHevitcAm 001 Ω C°58+otC°04– OS-61 MWB2-4252PMIW OLevitcAm 001 Ω C°58+otC°04– OS-61 NB1-4252PMIH GIHevitcAm 001 Ω C°58+otC°04– PID-61 NB2-4252PMIW OLevitcAm 001 Ω C°58+otC°04– PID-61 MWB1-7252PMIH GIHevitcAm 002 Ω C°58+otC°04– OS-61 MWB2-7252PMIW OLevitcAm 002 Ω C°58+otC°04– OS-61 NB1-7252PMIH GIHevitcAm 002 Ω C°58+otC°04– PID-61 NB2-7252PMIW OLevitcAm 002 Ω C°58+otC°04– PID-61 20t72/4252

© 1999 IMP , Inc. 408-432-9100/www.impweb.com 3 IMP252IMP252 4/24/2 77 Absolute Maximum Ratings

Electrical Characteristics

Package Thermal Resistance SO (θ Note: All voltages are referenced to GND. These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. Parameter Symbol Conditions Min Typ Max Units Supply Voltage Range V IN TA = – 40°C to +85°C 2.7 5.5 V Operating Temperature Range T A – 40 85 °C Supply Current I IN OFF Switch OFF, No load 0.75 10 µA Switch OFF V ENOFF ≤ 0.8V, VENON ≥ 2.4V IMP2524/27-1 VENON ≤ 0.8V, VENOFF ≥ 2.4V IMP2524/27-2 Supply Current I IN ON Switch ON, No load 110 320 µA Switch ON V ENOFF ≤ 0.8V, VENON ≥ 2.4V IMP2524/27-1 VENON ≤ 0.8V, VENOFF ≥ 2.4V IMP2524/27-2 Enable Input Threshold V ENH LOW to HIGH (“0” to “1”) Enable Voltage, Note 1 2.1 2.4 V VENL HIGH to LOW (“1” to “0”) Enable Voltage, Note 1 0.8 1.9 Enable Input Current I EN VEN = 2.4V 0.01 1 µA VEN = 0.8V 0.01 1 Enable Input Capacitance C EN 1p F Switch ON Resistance R ON IMP2524: IOUT = 500mA each switch 0.10 0.14 Ω IMP2527: IOUT = 500mA each switch 0.20 0.30 Continuous Load Current I L Each output 0.5 A Output Turn-On Delay T DON RL = 10Ω each output 0.25 ms Output Turn-On Rise Time T RON RL = 10Ω each output 1 ms Output Turn-Off Delay T DOFF RL = 10Ω each output 1 20 µs Output Turn-Off Fall Time T FOFF RL = 10Ω each output 1 20 µs Output Leakage Current I OFF 10 µA Short-circuit Current Limit I SC 0.50 0.75 1.25 A Overtemperature Shutdown T J increasing 135 °C Threshold T J decreasing 125 Error Flag Output Resistance R FLAG VIN = 5V, IL = 10mA 10 Ω VIN = 3.3V, IL = 10mA 15 Error Flag Output Current I FLAG VFLAG = 5V 0.01 1 µA UVLO Threshold V UVLO VIN Increasing 2.5 V VIN Decreasing 2.3 Unless otherwise noted, VIN = 5V and TA = 25°C. VEN ≤ 0.8V for the IMP2524/27-2. The Enable input has approximately 200mV of hysteresis.

IMP , Inc. Corporate Headquarters 2830 N. First Street San Jose, CA 95134-2071 Tel: 408-432-9100 Tel: 800-438-3722 Fax: 408-434-0335 e-mail: info@impinc.com http://www.impweb.com The IMP logo is a registered trademark of IMP , Inc. All other company and product names are trademarks of their respective owners. © 1999 IMP, Inc. Printed in USA Publication #: 5005 Revision: B Issue Date: 05/17/00 Type: Preliminary N D E eA eB C 0°–15° A e B1 B LA1 Plastic DIP (16-Pin).eps Plastic DIP (16-Pin) HE eB D A L 0°– 8° C 16-Pin (SO).eps SO (16-Pin) Package Dimensions sehcnIs retemilliM niMx aMn iMx aM *)niP-61(PIDcitsalP 2A5 21.05 71.08 1.35 4.4 B6 10.02 20.01 4.06 5.0 1B5 40.05 60.04 1.15 6.1 C8 00.02 10.00 2.00 3.0 D5 47.05 67.02 9.813 4.91 1D5 00.00 80.03 1.03 0.2 E0 03.05 23.02 6.76 2.8 1E0 42.00 13.00 1.67 8.7 L5 11.00 51.02 9.21 8.3 **)niP-61(OS A6 29.03 401.05 3.25 6.2 1A0 400.08 110.00 1.00 3.0 B3 10.00 20.03 3.01 5.0 C1 900.05 210.03 2.02 3.0 D7 793.03 314.00 1.010 5.01 E4 192.02 662.00 4.70 6.7 eC SB050.0C SB72.1 H4 93.09 14.00 0.015 6.01 L6 10.00 50.00 4.07 2.1 BA850-OMgniwarDCEDEJ* AA310-SMgniwarDCEDEJ** 3ta.30t_62/4252