MAX4995AAUT+ Fast Delivery |IC PHOENIX CO.,LIMITED

MAX4995AAUT+ ,50mA to 600mA Programmable Current-Limit SwitchesApplicationscurrent blocking to prevent current from being drivenback into the source.SDIO Ports Ce ..
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MAX499CWG ,Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiersapplications. The amplifiers are capable of ' 2pF Input Capacitancedelivering ±2.5V into back-termi ..
MAX5003CEE ,High-Voltage PWM Power-Supply Controllerfeatures and building blocks need- Internal High-Voltage Startup Circuited for a cost-effective fl ..
MAX5003CEE+ ,High-Voltage PWM Power-Supply ControllerMAX500319-1555; Rev 2; 4/02High-Voltage PWM Power-Supply Controller
MAX5003CSE+ ,High-Voltage PWM Power-Supply Controllerfeatures and building blocks need-♦ Internal High-Voltage Startup Circuited for a cost-effective fl ..
MAX913ESA ,Single/Dual / Ultra-Fast / Low-Power / Precision TTL ComparatorsELECTRICAL CHARACTERISTICS(V+ = +5V, V- = -5V, V = 1.4V, V = 0V, T = T to T , unless otherwise note ..
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MAX9140AAUK+T ,40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsApplicationsMAX9144EUD 14 TSSOP —● Line ReceiversMAX9144ESD 14 SO —● Battery-Powered Systems● Thres ..
MAX9140AAXK+T ,40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparatorsfeatures latch enable and device shutdown. These devices ● Rail-to-Rail Input Voltage Rangecombine ..
MAX9140EUK ,40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsMAX9140/MAX9141/ 40ns, Low-Power, 3V/5V, Rail-to-RailMAX9142/MAX9144 Single-Supply Comparators
MAX9140EUK+T ,40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply ComparatorsElectrical Characteristics(V = 5V, V = 0V, SHDN = LE = V (MAX9141 only), C = 15pF, T = T to T , unl ..

MAX4995AAUT+
50mA to 600mA Programmable Current-Limit Switches
General Description
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/
MAX4995C programmable current-limit switches fea-
ture internal current limiting to prevent damage to host
devices due to faulty load conditions. These analog
switches feature a low 130mΩ(typ) on-resistance and
operate from a +1.7V to +5.5V input voltage range. The
current limit is adjustable from 50mA to 600mA, making
these devices ideal for SDIO (secure digital input/out-
put) and other load-switching applications.
Each device in the family handles an overcurrent event
differently depending on the option selected. The
MAX4995A/MAX4995AF/MAX4995AL go into an
autoretry mode, the MAX4995B latches off the switch,
and the MAX4995C places the device in a continuous
current-limit mode. Additional safety features include
thermal shutdown to prevent overheating and reverse-
current blocking to prevent current from being driven
back into the source.
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/
MAX4995C are available in a tiny 10-pin, 1.4mm x
1.8mm UTQFN, a 6-pin SOT23, or an 8-pin, 2mm x
2mm TDFN package and operate over the -40°C to
+125°C extended temperature range.
Features50mA to 600mA Programmable Current Limit±10% Accurate Current LimitOverload FLAGThresholdLow Dropout VoltageShort-Circuit ProtectionThermal ShutdownReverse-Current Protection170µA (typ) Supply Current+1.7V to +5.5V Supply Voltage RangeTiny 10-Pin, 1.4mm x 1.8mm UTQFN Package
Applications
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
Ordering Information/Selector Guide
19-4363; Rev 2; 2/10
All devices operate over the -40°C to +125°C temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*Future product. Contact factory for availability.
**EP = Exposed pad.
PARTPIN-PACKAGEON POLARITYOVERCURRENT
RESPONSE
SHORT-CIRCUIT
RESPONSETOP MARK
MAX4995AAUT+T* 6 SOT23 Active-High Autoretry Normal +ACNZ
MAX4995AAVB+T 10 UTQFN Active-High Autoretry Normal +AAM
MAX4995AATA+T 8 TDFN-EP** Active-High Autoretry Normal +ABL
MAX4995AFAUT+T* 6 SOT23 Active-High Autoretry Fast +ACOE
MAX4995AFAVB+T 10 UTQFN Active-High Autoretry Fast +AAR
MAX4995AFATA+T* 8 TDFN-EP** Active-High Autoretry Fast +ACO
MAX4995ALAUT+T* 6 SOT23 Active-Low Autoretry Normal +ACDA
MAX4995ALAVB+T 10 UTQFN Active-Low Autoretry Normal +AAN
MAX4995ALATA+T* 8 TDFN-EP** Active-Low Autoretry Normal +ABM
MAX4995BAUT+T* 6 SOT23 Active-High Latchoff Normal +ACDB
MAX4995BAVB+T 10 UTQFN Active-High Latchoff Normal +AAO
MAX4995BATA+T* 8 TDFN-EP** Active-High Latchoff Normal +ABN
MAX4995CAUT+T* 6 SOT23 Active-High Continuous Normal +ACOD
MAX4995CAVB+T 10 UTQFN Active-High Continuous Normal +AAQ
MAX4995CATA+T* 8 TDFN-EP** Active-High Continuous Normal +ABP
Typical Operating Circuit appears at end of data sheet.
SDIO Ports
USB Ports
Notebook VGA Ports
GPS
Cell Phones
MP3 Players
UTCA/ATCA Platforms
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
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, ON, ON, FLAG, OUT, and SETI to GND.............-0.3V to +6V
Current into Any Pin (Except IN, OUT)................................20mA
OUT Short Circuit to GND.................................................800mA
Continuous Power Dissipation (TA= +70°C) (Note 1)
10-Pin UTQFN (derate 6.99mW/°C above TA= +70°C)..559mW
6-Pin SOT23 (derate 13.4mW/°C above TA= +70°C)...1072.4mW
8-Pin TDFN (derate 11.9mW/°C above TA= +70°C)....953.5mW
Junction-to-Ambient Thermal Resistance (θJA)
(Note 2).....................................................................143.1°C/W
Operating Temperature Range.........................-40°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s).................................+300°C
Note 1:These power limits are defined by the thermal characteristics of the package, maximum function temperature (+150°C), and
the JEDEC51-7 defined setup. Maximum power dissipation could be lower, limited by the thermal-shutdown protection
included in this IC.
Note 2:Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to /thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VIN= +1.7V to +5.5V, RSETI = 94.3kΩ, CIN= 1µF, and TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values are at VIN= +3.3V,= +25°C.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
SUPPLY OPERATION
Operating Voltage VIN 1.7 5.5 V
Quiescent Current IQ IOUT = 0, switch on, VIN= 3.3V 170 300 μA
Latchoff Current ILATCHVIN = 3.3V, IOUT = 0 after an overcurrent
fault (MAX4995B) 8 15 μA
Shutdown Forward Current ISHDN VON = 0, VON = VIN, VIN= 5.5V, VOUT = 0 0.01 5 μA
Shutdown Reverse Current IRSHDNVON = 0, VON = VIN, VIN= 1.7V,
VOUT = 5.5V (current into OUT) 0.01 1 μA
INTERNAL FET
Switch-On Resistance RON VIN = 3.3V, IOUT lower than ILIM130 350 m
Normalized Current-Limit Accuracy ILIM = 50mA to 600mA, VIN - VOUT = 1V,
VIN = 3.3V (Note 3) 0.9 1 1.1 —
(RSETI + 2.48) x ILIMProduct ILIM = 50mA to 600mA, VIN - VOUT = 1V,
VIN = 3.3V 26138 29042 31946 V
Reverse Blocking Current VOUT > VIN+ 300mV after reverse-current-
limit shutdown 10 μA
Reverse Blocking Threshold VOUT = VIN+ 300mV, OUT falling until switch
turns on 35 110 210 mV
FLAG Assertion Drop Voltage
Threshold VFAIncrease (VIN - VOUT) drop until FLAG
asserts, IOUT limiting, VIN = 3.3V 650mV
ON, ON INPUT
ON, ON Input Leakage ILEAK VON, VON = VINor GND -1 +1 μA
ON, ON Input Logic-High Voltage VIH 1.6 V
ON, ON Input Logic-Low Voltage VIL 0.4 V
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
Note 3:ILIMis forward current limit.
Note 4:Turn-on time and turn-off time are defined as the difference in the time between when the output crosses 10% and 90%
of the final output voltage.
Note 5:Blanking time and retry time are generated by the same oscillator. Therefore, the ratio of
is a constant value of 32. See Figures 2 and 3.
RETRY
BLANK(mA)2
R(k2.48kLIMSETI+
9042())Ω
ELECTRICAL CHARACTERISTICS (continued)
(VIN= +1.7V to +5.5V, RSETI = 94.3kΩ, CIN= 1µF, and TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values are at VIN= +3.3V,= +25°C.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
FLAG OUTPUT
FLAG Output Logic-Low Voltage ISINK = 1mA 0.4 V
FLAG Output Leakage Current VIN= VFLAG= 5.5V, FLAG deasserted 1 μA
DYNAMIC
Turn-On Time tSSVIN= 3.3V, COUT = 1μF, RL = 20, Figure 1,
(Note 4) 120 μs
Turn-Off Time tOFF Switch from on to off, VIN= 3.3V, COUT = 1μF,
RL = 20, Figure 1 (Note 4) 120 μs
MAX4995A/AL/B/C 5
Current-Limit Reaction Time tLIM
VIN= 3.3V, RSETI =
578k, output high and
then short-circuit
applied MAX4995AF 1.5
μs
Blanking Time tBLANK (Note 5) 10 16.3 22.6 ms
Retry Time tRETRY MAX4995A/MAX4995AF/MAX4995AL (Note 5) 320 723.2 ms
THERMAL PROTECTION
Thermal Shutdown +150 °C
Thermal-Shutdown Hysteresis 15 °C
tSS
10%
90%
10%
90%
tOFF
VOUT
Figure 1. Timing Diagram for Measuring Turn-On Time (tSS) and Turn-Off Time (tOFF).
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
CURRENT LIMIT
vs. SUPPLY VOLTAGE
MAX4995A toc01
SUPPLY VOLTAGE (V)
CURRENT LIMIT (mA)
MAX4995AL
NORMALIZED CURRENT LIMIT
vs. TEMPERATURE
MAX4995A toc02
TEMPERATURE (°C)
NORMALIZED CURRENT LIMIT
MAX4995AL
CURRENT-LIMIT RESPONSE (MAX4995A)
MAX4995A toc03
IOUT
(10A/div)
VOUT
(2V/div)
10µs/div
SUDDEN SHORT
APPLIED AT OUTPUT
CURRENT-LIMIT RESPONSE
MAX4995A toc05
IOUT
(100mA/div)
VOUT
(2V/div)
4ms/div
RLOAD = 8Ω
CURRENT-LIMIT RESPONSE (MAX4995AF)
MAX4995A toc04
IOUT
(10A/div)
VOUT
(2V/div)
10µs/div
SUDDEN SHORT
APPLIED AT OUTPUT
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX4995A toc06
QUIESCENT SUPPLY CURRENT (
MAX4995A
Typical Operating Characteristics
(VIN= +3.3V, CIN= 1µF, COUT= 1µF, RSETI= 94.2kΩ, TA= +25°C, unless otherwise noted.)
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
Typical Operating Characteristics (continued)
(VIN= +3.3V, CIN= 1µF, COUT= 1µF, RSETI= 94.2kΩ, TA= +25°C, unless otherwise noted.)
QUIESCENT SUPPLY LIMIT
vs. TEMPERATURE
MAX4995A toc07
QUIESCENT SUPPLY CURRENT (
VIN = 5V
MAX4995AL
VIN = 3.3V
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX4995A toc08
SHUTDOWN SUPPLY CURRENT (
VIN = 5V
VIN = 3.3V
MAX4995AL
TEMPERATURE (°C)
SHUTDOWN FORWARD CURRENT
vs. TEMPERATURE
MAX4995A toc09
SHUTDOWN FORWARD CURRENT (nA)
VIN = 5V
VIN = 1.7V
MAX4995C
TEMPERATURE (°C)
SHUTDOWN REVERSE CURRENT
vs. TEMPERATURE
MAX4995A toc10
SHUTDOWN REVERSE CURRENT (nA)
VIN = 5V
MAX4995C
VOUT = 5.5V
VIN = 1.7V
TEMPERATURE (°C)
NORMALIZED ON-RESISTANCE
vs. TEMPERATURE
MAX4995A toc13
NORMALIZED ON-RESISTANCE
MAX4995C
VIN = 3.3V
LATCHOFF CURRENT
vs. TEMPERATURE
MAX4995A toc11
LATCHOFF CURRENT (
VIN = 5V
MAX4995B
VIN = 3.3V
TEMPERATURE (°C)
NORMALIZED ON-RESISTANCE
vs. SUPPLY VOLTAGE
MAX4995A toc12
SUPPLY VOLTAGE (V)
NORMALIZED ON-RESISTANCE
MAX4995C
IOUT < ILIM
SWITCH TURN-ON TIME
vs. TEMPERATURE
MAX4995A toc14
SWITCH TURN-ON TIME (
VIN = 5V
VIN = 3.3V
MAX4995C
ILOAD = 10mA
SWITCH TURN-OFF TIME
vs. TEMPERATURE
MAX4995A toc15
SWITCH TURN-OFF TIME (ms)
VIN = 5V
VIN = 3.3V
MAX4995C
ILOAD = 10mA
-255-1020-405080659511035125
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
SWITCH TURN-ON TIME RESPONSE
MAX4995A toc16
VON
(5V/div)
VOUT
(2V/div)
200µs/div
SWITCH TURN-OFF TIME RESPONSE
MAX4995A toc17
VON
(5V/div)
VOUT
(2V/div)
200µs/div
FLAG RESPONSE (OVERLOAD) CONDITION
MAX4995A toc18
VOUT
(2V/div)
IOUT
(200mA/div)
VFLAG
(2V/div)
100ms/div
SWITCH DROPOUT VOLTAGE
vs. TEMPERATURE
MAX4995A toc19
SWITCH DROPOUT VOLTAGE (mV)
VIN = 3.3V
MAX4995A
ILOAD = 100mA
TEMPERATURE (°C)
IOUT/FLAG vs. VDROP (VIN - VOUT)
MAX4995A toc20
IOUT
(mA)
VIN = 5.5V
MAX4995B
FLAG (LOGIC-LEVEL STATUS)4905604200
Typical Operating Characteristics (continued)
(VIN= +3.3V, CIN= 1µF, COUT= 1µF, RSETI= 94.2kΩ, TA= +25°C, unless otherwise noted.)
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
Pin Description
PIN (UTQFN)PIN (TDFN-EP)PIN (SOT23)
MAX4995ALMAX4995_MAX4995ALMAX4995_MAX4995ALMAX4995_NAMEFUNCTION
1, 10 1, 10 1, 2 1, 2 5 5 IN
Power Input. Bypass IN with a
1μF ceramic capacitor to ground.
Use higher capacitance to
prevent large load transients from
pulling down the supply voltage if
necessary. Connect both power
inputs (IN) together. 2 3 3 6 6 FLAG
Open-Drain, Overload Indicator
Output. FLAG goes low when the
overload fault duration exceeds
the blanking time, reverse current
is detected, thermal shutdown
mode is active, or SETI is
connected to ground.
3 — 4 — 4 — ONActive-Low, Switch-On Input.
Drive ON low to turn on the switch.
— 3 — 4 — 4 ON Active-High, Switch-On Input.
Drive ON high to turn on the switch. 4 5 5 2 2 GND Ground 5 6 6 3 3 SETI
Overload Current Limit Adjust.
Connect a resistor from SETI to
ground to program the
overcurrent limit. Do not connect
any capacitance larger than 20pF
to SETI.
Pin Configurations8
*( ) FOR THE MAX4995AL ONLY.
**EXPOSED PAD. CONNECT EP TO GND.
OUT
MAX4995A/MAX4995AF
MAX4995AL/MAX4995B
MAX4995C
N.C.
ON (ON)*GND
UTQFN(1.4mm ×× 1.8mm)
TOP VIEWS
SETI
ON (ON)*OUT1INN.C.2FLAG
MAX4995A/MAX4995AF
MAX4995AL/MAX4995B
MAX4995C
MAX4995A/MAX4995AF
MAX4995AL/MAX4995B
MAX4995C
SOT23(1.6mm × 2.9mm)ON (ON)*3SETI
5IN2GNDFLAG1OUT5
OUTGND
N.C.FLAGIN
TDFN(2mm × 2mm)
SETI
*EP

Partno	Mfg	Dc	Qty	Available	Descript
MAX4995AAUT+	N/A	N/a	2500	avai	50mA to 600mA Programmable Current-Limit Switches