MAX4995C Maxim, MAX4995C Datasheet
MAX4995C
Related parts for MAX4995C
MAX4995C Summary of contents
Page 1
... 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 ...
Page 2
... For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. 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 ...
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
... 1. 125 -40 -25 - TEMPERATURE (°C) NORMALIZED ON-RESISTANCE vs. SUPPLY VOLTAGE 1.040 MAX4995C 1.035 I < I OUT LIM 1.030 1.025 1.020 1.015 1.010 1.005 1.000 0.995 0.990 0.985 0.980 125 1.7 2.2 2.7 3.2 3.7 4.2 4.7 SUPPLY VOLTAGE (V) SWITCH TURN-OFF TIME vs. TEMPERATURE 1 ...
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
... Pin Configurations OUT N.C. SETI GND FLAG MAX4995A/MAX4995AF IN MAX4995AL/MAX4995B MAX4995C ON (ON)* * FLAG ON (ON)* TDFN (2mm × 2mm) Pin Description NAME FUNCTION Power Input. Bypass IN with a 1μF ceramic capacitor to ground. Use higher capacitance to IN ...
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 ONLY. 8 _______________________________________________________________________________________ Pin Description (continued) PIN (SOT23) MAX4995_ MAX4995AL MAX4995_ 7 — — — ...
Page 9
... Continuous Current Limit (MAX4995C) When the forward current reaches the forward current- ) has BLANK limit threshold, the MAX4995C limits the output current ) starts immediately to the programmed current limit. FLAG asserts if the current limit is present for t , the RETRY the overload condition is removed ...
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
... Input Capacitor the duty cycle: P MAX Attention must be given to the MAX4995C continuous current-limit version when the power dissipation during a fault condition may cause the device to reach thermal shutdown threshold. Output Capacitor ) value that MAX × ...
Page 12
... IN FLAG OUT MAX4995A/ ON MAX4995AF/ (ON*) MAX4995AL/ MAX4995B/ MAX4995C SETI N.C. R SETI GND *( ) FOR THE MAX4995AL ONLY. For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
Page 13
... Added the TDFN pin configuration drawing to the Pin Configurations section. 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. ...