MAX1823 Fast Delivery |IC PHOENIX CO.,LIMITED

MAX1823 ,Dual USB Switch with Fault Blanking and AutoresetApplicationsUSB Ports and HubsNotebook and Desktop ComputersTypical Operating CircuitPDAs and Palmt ..
MAX1823AEUB ,4 V to 5.5 V, dual USB switch with fault blanking and autoresetApplicationsUSB Ports and HubsNotebook and Desktop ComputersTypical Operating CircuitPDAs and Palmt ..
MAX1823AEUB ,4 V to 5.5 V, dual USB switch with fault blanking and autoresetMAX1823/MAX1823A/MAX1823B/MAX1823H19-1903; Rev 3; 10/03Dual USB Switch with FaultBlanking and Autor ..
MAX1823AEUB ,4 V to 5.5 V, dual USB switch with fault blanking and autoresetfeatures to ensurethat the USB port is protected. Built-in thermal-overload 4V to 5.5V Input Volta ..
MAX1823AEUB+T ,Dual USB Switch with Fault Blanking and Autoresetapplications. The♦ Autoreset Feature Saves Powerautoreset feature latches the switch off if the out ..
MAX1823BEUB ,4 V to 5.5 V, dual USB switch with fault blanking and autoresetfeatures to ensurethat the USB port is protected. Built-in thermal-overload 4V to 5.5V Input Volta ..
MAX4700CAE ,1.25 / Dual SPST / CMOS Analog SwitchesApplicationsMAX4680CWE 0°C to +70°C 16 Wide SOMAX4680CPE 0°C to +70°C 16 Plastic DIPReed Relay Repl ..
MAX4700CAE+ ,1.25Ω, Dual, SPST, CMOS Analog Switchapplications where current switching is required. They♦ Guaranteed Break-Before-Make (MAX4700)have ..
MAX4700CPE ,1.25 / Dual SPST / CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +15V, V- = -15V, V = +5V, V = +2.4V, V = +0.8V, T = T ..
MAX4700CWE ,1.25 / Dual SPST / CMOS Analog Switchesfeatures guaranteed break-before-make switching.These devices operate from a +4.5V to +36V singlesu ..
MAX4700EAE+ ,1.25Ω, Dual, SPST, CMOS Analog Switchfeatures guaranteed break-before-make switching.These devices operate from a +4.5V to +36V singlesu ..
MAX4701ETE , Low-Voltage, Dual DPDT/Quad SPDT Analog Switches in QFN

MAX1823
Dual USB Switch with Fault Blanking and Autoreset
General Description
The MAX1823 is a dual, current-limited switch with
autoreset specifically made for USB applications. The
autoreset feature latches the switch off if the output is
shorted, saving system power. The switch reactivates
when the short circuit is removed. Each channel is guar-
anteed to supply 720mA and meet USB specifications.
Low quiescent supply current (50µA) and standby current
(3µA) conserve battery power in portable applications.
The MAX1823 has multiple safety features to ensure
that the USB port is protected. Built-in thermal-overload
protection limits power dissipation and junction temper-
ature. Accurate internal current-limiting circuitry pro-
tects the input supply against both overload and
short-circuit conditions. Independent fault signals
(FAULTAand FAULTB) notify the microprocessor (µP)
when a thermal-overload, current-limit, undervoltage-
lockout (UVLO), or short-circuit fault occurs. A 20ms
fault-blanking feature ignores momentary faults, such
as those caused when hot swapping a capacitive load,
preventing false alarms to the host system. The
MAX1823A/MAX1823B also block reverse current (cur-
rent from OUT_ to IN_) while in shutdown.
The MAX1823 is available in a space-saving 10-pin
µMAX package. The MAX1823/MAX1823A are enabled
with an active-low signal, and the MAX1823B/MAX1823H
are enabled with an active-high signal. For a single ver-
sion of this device, refer to the MAX1946 data sheet. For
a triple version, refer to the MAX1940 data sheet.
Applications
USB Ports and Hubs
Notebook and Desktop Computers
PDAs and Palmtop Computers
Docking Stations
FeaturesDual USB Switch in Tiny 10-Pin µMAX PackageAutoreset Feature Saves PowerGuaranteed 720mA Load per ChannelBuilt-In 20ms Fault BlankingCompliant to USB SpecificationBlocks Reverse Current in Shutdown
(MAX1823A/MAX1823B)4V to 5.5V Input Voltage RangeIndependent Shutdown Control
(MAX1823/MAX1823A—Active Low)
(MAX1823B/MAX1823H—Active High)Independent FAULTIndicator OutputsThermal-Overload Protection50µA Quiescent Current (Both Switches On)3µA Standby CurrentUL Recognized
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
Ordering Information
Typical Operating Circuit
19-1903; Rev 3; 10/03
PARTTEMP RANGEPIN-PACKAGE
MAX1823EUB-40°C to +85°C10 µMAX
MAX1823AEUB-40°C to +85°C10 µMAX
MAX1823BEUB-40°C to +85°C10 µMAX
MAX1823HEUB-40°C to +85°C10 µMAX
Pin Configuration
ONBONB
ONAONA
GND
MAX1823
MAX1823A
FAULTB
FAULTA
INA
INB
USB
PORT AOUTA
USB
PORT BOUTB
INPUT
4V TO 5.5V
OUTA
GND
OUTBINB
INAMAX1823
MAX1823A
MAX1823B
MAX1823H
μMAX
TOP VIEW
*(ONA) ONA
*(ONB) ONB
*( ) ARE FOR MAX1823B/MAX1823H.
FAULTB
FAULTA
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN, INA, INB, ONA, ONB, ONA, ONB
OUTA, OUTB to GND...........................................-0.3V to +6V
FAULTA, FAULTBto GND..........................-0.3V to (VIN_+ 0.3V)
MAX1823/MAX1823H, INA, IN to OUTA;
INB, IN to OUTB...................................................-0.3V to +6V
MAX1823A/MAX1823B, INA, IN to OUTA;
INB, IN to OUTB (when disabled, Note 3)...............-6V to +6V
INA, IN to OUTA; INB, IN to OUTB
(when enabled, Note 4)..............................-1.5A to +1.5ARMS
FAULTA, FAULTBCurrent .................................................20mA
Continuous Power Dissipation (TA= +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C)...........444mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Supply Voltage Range4.05.5V
TA = +25°C, each switch,
MAX1823/MAX1823H75105
TA = +25°C, each switch,
MAX1823A/MAX1823B90120
TA = 0°C to +85°C, each switch,
MAX1823/MAX1823H135
Switch On-ResistanceRON
TA = 0°C to +85°C, each switch,
MAX1823A/MAX1823B165
Standby Supply CurrentON_ = IN_ (MAX1823/MAX1823A), ON_ =
GND (MAX1823B/MAX1823H)310µA
IOUTA = IOUTB = 0A, one channel on4080Quiescent Supply Current
IOUTA = IOUTB = 0A, both channels on50100
ON_ = IN _ ( MAX 1823/M AX1823A), ON _ = GND
(M AX1823B/M AX1823H), VOUTA = VOUTB = 0V,
TA = +25oC
OUT_ Off-Leakage Current
ON_ = IN_ (MAX1823/MAX1823A), ON_ =
GND (MAX1823B/MAX1823H),
VOUTA = VOUTB = 0V, TA = 0oC to +85oC
Undervoltage-Lockout ThresholdVUVLORising edge, 3% hysteresis3.03.43.8V
Continuous Load Current720mA
Continuous Current LimitILIMVIN - VOUT_ = 0.5V0.720.901.20A
VOUT_ = 0V (IOUT pulsing)0.81.21.6APEAKShort-Circuit Current LimitISHORTVOUT_ = 0V (IOUT pulsing)0.35ARMS
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VIN= VINA= VINB= 5V, ONA= ONB= GND (MAX1823/MAX1823A), ONA = ONB = IN (MAX1823B/MAX1823H),
TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Short-Circuit Detect Threshold(Note 1)1V
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT_ assertion102035ms
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT_ assertion7.51835.0ms
MAX1823/MAX1823H0.51.24.0
Turn-On DelaytON
ROUT_ = 10kΩ,
does not include
rise timeMAX1823A/MAX1823B0.30.83.0
Output Rise TimetRISEROUT_ = 10Ω, from 10% to 90% of VOUT_2.5ms
ROUT_ = 10Ω, does not include fall time (from
ON_ (MAX1823) or ON_ (MAX1823H)
deasserted to VOUT = 90% of VIN_)
Turn-Off Delay from ONtOFF
ROUT_ = 10Ω, does not include fall time (from
ON_ (MAX1823A) or ON_ (MAX1823B)
deasserted to VOUT = 90% of VIN_)
ROUT_ = 10Ω, from 90% to 10% of VOUT_
(MAX1823/MAX1823H)2.5
Output Fall TimetFALL
ROUT_ = 10Ω, from 90% to 10% of VOUT_
(MAX1823A/MAX1823B)2.8
Thermal-Shutdown Threshold15oC hysteresis+160oC
Logic Input High VoltageVIN_ = 4V to 5.5V2V
Logic Input Low VoltageVIN_ = 4V to 5.5V0.8V
Logic Input CurrentON_ = GND or IN_ (MAX1823/MAX1823A),
ON_ = GND or IN_ (MAX1823B/MAX1823H)-1+1µA
FAULT_ Output Low VoltageISINK = 1mA, VIN_ = 4V0.4V
FAULT_ Output High Leakage
CurrentVIN_ = V FAULT_ = 5.5V1µA
Autoreset OUT_ CurrentIn latched-off state, VOUT_ = 0V1030 45mA
Autoreset ThresholdIn latched-off state, rising0.40.5 0.6V
Autoreset Blanking TimeIn latched-off state, VOUT_ > 0.5V10 2035ms
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VIN= VINA= VINB= 5V, ONA= ONB= GND (MAX1823/MAX1823A), ONA = ONB = IN (MAX1823B/MAX1823H),
TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VIN= VIN_ = VON_ = 5V (MAX1823B/MAX1823H); VIN= VIN_ = 5V, ON_ = GND (MAX1823/MAX1823A), TA = -40°C
to +85°C, unless otherwise noted.) (Note 2)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Supply Voltage Range4.05.5V
Each switch, MAX1823/MAX1823H135Switch On-ResistanceRONEach switch, MAX1823A/MAX1823B165mΩ
Standby Supply CurrentON_ = IN_ (MAX1823/MAX1823A),
ON_ = GND (MAX1823B/MAX1823H)10µA
IOUTA = IOUTB = 0A, one channel on80
Quiescent Supply Current
IOUTA = IOUTB = 0A, both channels on100
OUT_ Off-Leakage Current
ON_ = IN_ (MAX1823/MAX1823A),
ON_ = GND (MAX1823B/MAX1823H),
VOUTA = VOUTB = 0VµA
Undervoltage-Lockout ThresholdVUVLORising edge, 3% hysteresis3.03.8V
Continuous Load Current720mA
Continuous Current LimitILIMVIN_ - VOUT_ = 0.5V0.721.20A
Current Limit into Short CircuitISHORTVOUT_ = 0V (IOUT pulsing)0.81.6APEAK
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT_ assertion1035ms
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT_ assertion7.535.0ms
MAX1823/MAX1823H0.54.0
Turn-On DelaytON
ROUT_ = 10kΩ,
does not include
rise timeMAX1823A/MAX1823B0.33.0
Turn-Off Delay from ONtOFF
ROUT_ = 10Ω, does not include fall time
(from ON_ (MAX1823/MAX1823A) or ON_
(MAX1823B/MAX1823H) deasserted to
VOUT_ = 90% VIN_)
3ms
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VIN= VIN_ = VON_ = 5V (MAX1823B/MAX1823H); VIN= VIN_ = 5V, ON_ = GND (MAX1823/MAX1823A), TA = -40°C
to +85°C, unless otherwise noted.) (Note 2)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Logic Input High VoltageVIN_= 4V to 5.5V2V
Logic Input Low VoltageVIN_= 4V to 5.5V0.8V
Logic Input CurrentV ON_ = 0V or VIN_-1+1µA
FAULT_ Output Low VoltageISINK = 1mA, VIN_ = 4V0.4V
FAULT_ Output High Leakage
CurrentVIN_ = V FAULT_ = 5.5V1µA
Autoreset OUT_CurrentIn latched-off state, VOUT_ = 0V10 50mA
Autoreset ThresholdIn latched-off state, rising0.4 0.6V
Autoreset Blanking TimeIn latched-off state, VOUT_ > 0.5V1035ms
Note 1:The output voltage at which the device transitions from short-circuit current limit to continuous current limit.
Note 2:Specifications to -40°C are guaranteed by design, not production tested.
Note 3:Reverse current (current from OUT_ to IN_) is blocked when disabled.
Note 4:Forward current (current from IN_ to OUT_) is internally limited. Reverse current, from OUT_ to IN_, is not limited when the
device is enabled and must be kept below 1.5ARMSto prevent permanent device damage. When the MAX1823A/MAX1823B
are disabled, the switch turns off and reverse current is internally blocked.
Typical Operating Characteristics
(Circuit of Figure 1, VIN= VINA= VINB= 5V, ON_=GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), TA= +25°C,
unless otherwise noted.)13456
QUIESCENT CURRENT
vs. INPUT VOLTAGE
MAX1823 toc01
INPUT VOLTAGE (V)
QUIESCENT CURRENT (
QUIESCENT CURRENT
vs. TEMPERATURE
MAX1823 toc02
TEMPERATURE (°C)
QUIESCENT CURRENT (
VIN_ = 5.5V
VIN_ = 4.5V
VIN_ = 5V
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX1823 toc03
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT (
ON_ = IN_ (MAX1823/MAX1823A)
ON_ = GND (MAX1823B/MAX1823H)
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
MAX1823 toc06
TEMPERATURE (°C)
CONTINUOUS CURRENT LIMIT (mA)
CONTINUOUS CURRENT-LIMIT
THRESHOLD vs. TEMPERATURE
VIN_ = 5.5V
VIN_ = 4.5V
VIN_ = 5V
SWITCH OFF-LEAKAGE
vs. TEMPERATURE
MAX1823 toc04
TEMPERATURE (°C)
SWITCH OFF-LEAKAGE (nA)
NORMALIZED RON vs. TEMPERATURE
MAX 1823 toc05
TEMPERATURE (°C)
NORMALIZED R
TURN-ON TIME
vs. TEMPERATURE (tON + tRISE)
MAX1823 toc07
TEMPERATURE (°C)
TURN-ON TIME (ms)
VIN_ = 5.5V
VIN_ = 4.5V
VIN_ = 5V
TURN-OFF TIME
vs. TEMPERATURE (tOFF + tFALL)
MAX1823 toc08
TEMPERATURE (°C)
TURN-OFF TIME (ms)
VIN_ = 5.5V
VIN_ = 4.5V
VIN_ = 5V
FAULT-BLANKING TIME
vs. TEMPERATURE
MAX1823 toc09
TEMPERATURE (°C)
FAULT-BLANKING TIME (ms)VIN_ = 5.5V
VIN_ = 4.5V
VIN_ = 5V
FAULT_ OUTPUT LOW VOLTAGE
vs. TEMPERATURE
MAX1823 toc10
TEMPERATURE (°C)
FAULT_ OUTPUT LOW VOLTAGE (V)
VIN_ = 5.5V
VIN_ = 4.5V
VIN_ = 5V
IFAULT_ = 1mA
AUTORESET CURRENT vs. TEMPERATURE
(MAX1823/MAX1823H)
MAX1823 toc11
TEMPERATURE (°C)
AUTORESET CURRENT (mA)
VIN_ = 5.5V
VIN_ = 4.5VVIN_ = 5V
AUTORESET CURRENT vs. TEMPERATURE
(MAX1823A/MAX1823B)
MAX1823 toc12
TEMPERATURE (°C)
AUTORESET CURRENT (mA)
VIN_ = 5.5V
VIN_ = 4.5V
VIN_ = 5V
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN= VINA= VINB= 5V, ON_=GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), TA= +25°C,
unless otherwise noted.)
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
MAX1823 toc13
INPUT VOLTAGE (V)
AUTORESET CURRENT (mA)
AUTORESET CURRENT vs. INPUT VOLTAGE
(MAX1823/MAX1823H)
TA = +25°C
TA = -40°C
TA = +85°C
MAX1823 toc14
INPUT VOLTAGE (V)
AUTORESET CURRENT (mA)
AUTORESET CURRENT vs. INPUT VOLTAGE
(MAX1823A/MAX1823B)
TA = +25°C
TA = +85°C
TA = -40°C
10ms/div
OVERLOAD RESPONSE INTO 2.5Ω
(MAX1823/MAX1823H)
A: VIN_, 5V/div
B: VOUTA, 5V/div
C: VFAULTA, 5V/div
D: IOUTA, 1A/div
MAX1823 toc15
10ms/div
OVERLOAD RESPONSE INTO 2.5Ω
(MAX1823A/MAX1823B ONLY)
A: VIN_, 5V/div
B: VOUTA, 5V/div
C: VFAULTA, 5V/div
D: IOUTA, 1A/div
MAX1823 toc16
500μs/div
OVERLOAD RESPONSE INTO 2.5Ω
(EXPANDED TIME SCALE)
A: VIN_, 5V/div
B: VOUTA, 5V/div
MAX1823 toc17
C: VFAULTA, 5V/div
D: IOUTA, 1A/div
10ms/div
SHORT-CIRCUIT RESPONSE INTO 0Ω
(MAX1823/MAX1823H)
MAX1823 toc18
C: VFAULTA, 5V/div
D: IOUTA, 1A/div
A: VIN_, 5V/div
B: VOUTA, 5V/div
10ms/div
SHORT-CIRCUIT RESPONSE INTO 0Ω
(MAX1823A/MAX1823B)
MAX1823 toc19
C: VFAULTA, 5V/div
D: IOUTA, 2A/div
A: VIN_, 5V/div
B: VOUTA, 5V/div
500μs/div
SHORT-CIRCUIT RESPONSE INTO 0Ω
(EXPANDED TIME SCALE)
A: VIN_, 5V/div
B: VOUTA, 5V/div
MAX1823 toc20
C: VFAULTA, 5V/div
D: IOUTA, 2A/div
1ms/div
SWITCH TURN-ON TIME
(MAX1823/MAX1823A)
A: VONA, 5V/div
B: VOUTA, 2V/div
MAX1823 toc21
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN= VINA= VINB= 5V, ON_=GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), TA= +25°C,
unless otherwise noted.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX1823	MAXIM	N/a	47	avai	Dual USB Switch with Fault Blanking and Autoreset