MAX4914B Maxim, MAX4914B Datasheet
MAX4914B
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MAX4914B Summary of contents
Page 1
... The switch turns on and remains on after the overload condition disappears and FLAG deasserts. The MAX4914B is available in the tiny 6-pin µDFN (2mm x 2mm) package, while the MAX4915A/B and MAX4917A/B are available in both 6-pin µDFN (2mm x 2mm) and space-saving 5-pin SOT23 pack- ages. These devices operate over the -40° ...
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... V , after an over cur r ent faul 4914B 4915B/M AX 4917B ( l atchoff ver si ons +5.5V ON OUT +5.5V +2.3V ON OUT IN MAX4914B GND OUT MAX4915_ GND FWD OUT MAX4917_ GND OUT ≥ 0.5V MAX4914B OUT IN ≥ 0.5V I MAX4915_ REV ...
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Current-Limit Switches with Low Shutdown Reverse Current ELECTRICAL CHARACTERISTICS (continued +2.3V to +5.5V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Turn-Off Time Blanking Time t BLANK Short-Circuit ...
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Current-Limit Switches with Low Shutdown Reverse Current (V = 3.3V +25°C, unless otherwise noted NORMALIZED ON-RESISTANCE vs. TEMPERATURE 1 1.2 1.0 0.8 0.6 0.4 0.2 0 -40 - ...
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Current-Limit Switches with Low Shutdown Reverse Current (V = 3.3V +25°C, unless otherwise noted TURN-OFF RESPONSE 200ns/div PIN MAX4914A/B/ MAX4915A/B/ MAX4915A/B/ MAX4917A/B MAX4917A/B (SOT23) (µDFN ...
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... If the faulty load condition is not pre- sent, the switch remains on. During this retry time, FLAG remains low until the fault is removed. The MAX4914B/MAX4915B/MAX4917B do not have the autoretry option, and the switch remains in latchoff mode until the ON pin or the input power is cycled from high to low and then high again ...
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... Current-Limit Switches with Low Shutdown Reverse Current Table 1. MAX4914B/MAX4915A/B/MAX4917A/B Switch Truth Table ON FAULT Low X OFF High Undervoltage lockout OFF High Thermal OFF immediately (t OFF after t ON during t High Current limit MAX4915A/MAX4917A (autoretry versions); cycle repeats until fault is removed ON SWITCH ...
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... ON SWITCH STATUS OFF IN PIN UVLO VOLTAGE FLAG PIN STATUS Figure 3. MAX4914B/MAX4915B/MAX4917B Latchoff Fault Blanking (MAX4914B/MAX4915B/MAX4917B) When the forward or reverse current-limit threshold is exceeded, the t timer begins counting. The timer BLANK resets if the overcurrent condition disappears before t has elapsed. The switch is shut off if the over- ...
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... RETRY TOP VIEW GND _______________________________________________________________________________________ Attention must be given to the MAX4914B/MAX4915B/ MAX4917B (latchoff versions), where the latchoff condi- tion must be manually reset by toggling ON from high to low. If the latchoff time duration is not sufficiently high possible for the device to reach the thermal- ...
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... Current-Limit Switches with Low Shutdown Reverse Current For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 6 µDFN 5 SOT23 10 ______________________________________________________________________________________ Package Information PACKAGE CODE L622-1 U5-2 DOCUMENT NO. 21-0164 21-0057 ...
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... Changed V 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 ____________________ 11 © ...