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LTC4210-2 Datasheet(PDF) 6 Page - Linear Technology |
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LTC4210-2 Datasheet(HTML) 6 Page - Linear Technology |
6 / 20 page 6 LTC4210-1/LTC4210-2 421012f VCB vs Supply Voltage 4210 G24 SUPPLY VOLTAGE (V) 0 58 56 54 52 50 48 46 44 42 16 4 2 6 10 14 18 8 12 20 58 56 54 52 50 48 46 44 42 TA = 25°C –75 150 –25 –50 0 25 50 75 100 125 TEMPERATURE ( °C) 4210 G25 VCC = 5V TYPICAL PERFOR A CE CHARACTERISTICS VCB vs Temperature PI FU CTIO S TIMER (Pin 1): Timer Input Pin. An external capacitor CTIMERsets a 272.9ms/µF initial timing delay and a 21.7ms/ µF circuit breaker delay. The GATE pin turns off whenever the TIMER pin is pulled beyond the COMP2 threshold, such as for overvoltage detection with an external zener. GND (Pin 2): Ground Pin. ON (Pin 3): ON Input Pin. The ON pin comparator has a low-to-high threshold of 1.3V with 80mV hysteresis and a glitch filter. When the ON pin is low, the LTC4210 is reset. When the ON pin goes high, the GATE turns on after the initial timing cycle. GATE (Pin 4): GATE Output Pin. This pin is the high side gate drive of an external N-channel MOSFET. An internal charge pump provides a 10 µA pull-up current with Zener clamps to VCC and ground. In overload, the error amplifier (EA) controls the external MOSFET to maintain a constant load current. An external R-C compensation network should be connected to this pin for current limit loop stability. SENSE (Pin 5): Current Limit Sense Input Pin. A sense resistor between the VCC and SENSE pins sets the analog current limit. In overload, the EA controls the external MOSFET gate to maintain the SENSE pin voltage at 50mV below VCC. When the EA is maintaining current limit, the TIMER circuit breaker mode is activated. The current limit loop/circuit breaker mode can be disabled by connecting the SENSE pin to the VCC pin. VCC (Pin 6): Positive Supply Input Pin. The operating supply voltage range is between 2.7V to 16.5V. An under- voltage lockout (UVLO) circuit with a glitch filter resets the LTC4210 when a low supply voltage is detected. |
Similar Part No. - LTC4210-2_15 |
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Similar Description - LTC4210-2_15 |
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