MAX4995AATA+T Maxim Integrated Products, MAX4995AATA+T Datasheet

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MAX4995AATA+T

Manufacturer Part Number
MAX4995AATA+T
Description
IC SWITCH CURRENT LIMIT 8TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX4995AATA+T

Function
Current Switch
Accuracy
±10%
Voltage - Input
1.7 ~ 5.5 V
Current - Output
600mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-TDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sensing Method
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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.
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.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX4995AAUT+T*
MAX4995AAVB+T
MAX4995AATA+T
MAX4995AFAUT+T*
MAX4995AFAVB+T
MAX4995AFATA+T*
MAX4995ALAUT+T*
MAX4995ALAVB+T
MAX4995ALATA+T*
MAX4995BAUT+T*
MAX4995BAVB+T
MAX4995BATA+T*
MAX4995CAUT+T*
MAX4995CAVB+T
MAX4995CATA+T*
PART
________________________________________________________________ Maxim Integrated Products
PIN-PACKAGE
6 SOT23
10 UTQFN
8 TDFN-EP**
6 SOT23
10 UTQFN
8 TDFN-EP**
6 SOT23
10 UTQFN
8 TDFN-EP**
6 SOT23
10 UTQFN
8 TDFN-EP**
6 SOT23
10 UTQFN
8 TDFN-EP**
General Description
50mA to 600mA Programmable
ON POLARITY
Active-High
Active-High
Active-High
Active-High
Active-High
Active-High
Active-High
Active-High
Active-High
Active-High
Active-High
Active-High
Active-Low
Active-Low
Active-Low
Ordering Information/Selector Guide
Current-Limit Switches
♦ 50mA to 600mA Programmable Current Limit
♦ ±10% Accurate Current Limit
♦ Overload FLAG Threshold
♦ Low Dropout Voltage
♦ Short-Circuit Protection
♦ Thermal Shutdown
♦ Reverse-Current Protection
♦ 170µA (typ) Supply Current
♦ +1.7V to +5.5V Supply Voltage Range
♦ Tiny 10-Pin, 1.4mm x 1.8mm UTQFN Package
OVERCURRENT
Typical Operating Circuit appears at end of data sheet.
RESPONSE
Continuous
Continuous
Continuous
SDIO Ports
USB Ports
Notebook VGA Ports
GPS
Autoretry
Autoretry
Autoretry
Autoretry
Autoretry
Autoretry
Autoretry
Autoretry
Autoretry
Latchoff
Latchoff
Latchoff
SHORT-CIRCUIT
RESPONSE
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Fast
Fast
Fast
Cell Phones
MP3 Players
UTCA/ATCA Platforms
Applications
TOP MARK
Features
+ACOD
+ACOE
+ACDA
+ACDB
+ACNZ
+AAM
+ABM
+AAR
+ACO
+AAN
+AAO
+ABN
+AAQ
+ABL
+ABP
1

Related parts for MAX4995AATA+T

MAX4995AATA+T Summary of contents

Page 1

... MAX4995C are available in a tiny 10-pin, 1.4mm x 1.8mm UTQFN, a 6-pin SOT23 8-pin, 2mm x 2mm TDFN package and operate over the -40°C to +125°C extended temperature range. PART PIN-PACKAGE MAX4995AAUT+T* 6 SOT23 MAX4995AAVB+T 10 UTQFN MAX4995AATA+T 8 TDFN-EP** MAX4995AFAUT+T* 6 SOT23 MAX4995AFAVB+T 10 UTQFN MAX4995AFATA+T* 8 TDFN-EP** MAX4995ALAUT+T* 6 SOT23 ...

Page 2

Programmable Current-Limit Switches ABSOLUTE MAXIMUM RATINGS 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 (T = +70°C) ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +1.7V to +5.5V 94.3kΩ SETI +25°C.) A PARAMETER SYMBOL OUTPUT Output Logic-Low Voltage Output Leakage Current DYNAMIC Turn-On Time Turn-Off Time Current-Limit Reaction Time Blanking Time Retry Time ...

Page 4

Programmable Current-Limit Switches (V = +3.3V 1µ 1µ OUT CURRENT LIMIT vs. SUPPLY VOLTAGE 315 MAX4995AL 310 305 300 295 290 285 1.5 2.0 2.5 3.0 3.5 SUPPLY VOLTAGE (V) ...

Page 5

C = 1µ 1µ OUT QUIESCENT SUPPLY LIMIT vs. TEMPERATURE 260 250 240 230 220 210 200 190 180 V = 3.3V IN 170 160 MAX4995AL 150 140 ...

Page 6

Programmable Current-Limit Switches (V = +3.3V 1µ 1µ OUT SWITCH TURN-ON TIME RESPONSE 200μs/div FLAG RESPONSE (OVERLOAD) CONDITION 100ms/div 6 _______________________________________________________________________________________ Typical Operating Characteristics (continued) = 94.2kΩ +25°C, ...

Page 7

TOP VIEWS IN N.C. OUT MAX4995A/MAX4995AF MAX4995AL/MAX4995B MAX4995C FLAG (ON)* GND SETI UTQFN (1.4mm × × 1.8mm FOR THE MAX4995AL ONLY. **EXPOSED PAD. CONNECT EP TO ...

Page 8

Programmable Current-Limit Switches PIN (UTQFN) PIN (TDFN-EP) MAX4995AL MAX4995_ MAX4995AL — — — MAX4995A/MAX4995AF/ MAX4995AL/MAX4995B/ MAX4995C IN UVLO N.C. SOFT-START ON (ON FOR THE MAX4995AL ...

Page 9

Detailed Description The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/ MAX4995C programmable current-limit switches oper- ate from +1.7V to +5.5V and provide internal current limiting adjustable from 50mA to 600mA. These devices feature a fixed blanking time and a FLAG output that notifies the processor when ...

Page 10

Programmable Current-Limit Switches OUT CURRENT LIMIT LOAD CURRENT FLAG Figure 2. Autoretry Fault Diagram CURRENT LIMIT LOAD CURRENT THE DEVICE GOES TO THERMAL-SHUTDOWN MODE Figure 3. Latchoff Fault Diagram FLAG is an open-drain fault indicator output and ...

Page 11

Applications Information Setting the Current Limit A resistor from SETI to ground programs the current-limit value for the MAX4995. Table 2 lists various current lim- its set by different resistor values at SETI. Shorting SETI to ground asserts FLAG. Use ...

Page 12

Programmable Current-Limit Switches µP Chip Information PROCESS: BiCMOS 12 ______________________________________________________________________________________ V CC 1µ FLAG OUT MAX4995A/ ON MAX4995AF/ (ON*) MAX4995AL/ MAX4995B/ MAX4995C SETI N.C. R SETI GND *( ) FOR THE MAX4995AL ONLY. For ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2010 Maxim Integrated Products ...

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