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LTC1154 Datasheet(PDF) 11 Page - Linear Technology |
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LTC1154 Datasheet(HTML) 11 Page - Linear Technology |
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11 / 18 page  LTC1154 11 1154fb TYPICAL APPLICATIONS APPLICATIONS INFORMATION added as shown in Figure 8 which holds the supply pin of theLTC1154highlongenoughfortheovercurrentshutdown circuitry to respond and fully discharge the gate. Five volt linear regulators with small output capacitors are the most difficult to protect as they can “switch” from a voltage mode to a current limited mode very quickly. The large output capacitors on many switching regulators may be able to hold the supply pin of the LTC1154 above 3.5V sufficiently long that this extra filtering is not required. Because the LTC1154 is micropower in both the standby and ON state, the voltage drop across the supply filter is less than 2mV, and does not significantly alter the accuracy of the 100mV drain sense threshold voltage. IN EN STATUS † GND VS DS G SD LTC1154 + 100μF IRLZ24 6V LTC1154 • TA03 6V LOAD 5V *RL3006-50-100-25-PT0 KEYSTONE 30k PTC THERMISTOR (100°C)* μP OR CONTROL LOGIC IN EN STATUS † GND VS DS G SD LTC1154 IRLZ24 5V LTC1154 • TA04 6V LOAD 5V μP OR CONTROL LOGIC 1μF** + 100μF 10k 1N4148* 2N2907 10k OPTIONAL IF SUPPLY VOLTAGE LESS THAN 6V. CAPACITOR CHARGED TO SUPPLY VOLTAGE. SHUTDOWN OCCURS WHEN SUPPLY VOLTAGE DROPS BY 0.6V. * ** + IN EN STATUS † GND VS DS G SD LTC1154 + 10μF IRLD024 4.75V TO 5.25V LTC1154 • TA05 5V LOAD 5V SWITCH IS SHUTDOWN WHEN VS > 5.7V μP OR CONTROL LOGIC 100Ω 5.6V IN EN STATUS † GND VS DS G SD LTC1154 MTP12N06 24V TO 28V LTC1154 • TA06 24V TO 28V LOAD 5V *KEYSTONE RL2006-100-100-30-PT. MOUNT ON MOSFET OR LOAD HEAT SINK μP OR CONTROL LOGIC 10μF + 100μF 3k 18V PTC THERMISTOR (100°C)* 200k + High Side Driver with Thermal Shutdown High Side Driver with Overvoltage Shutdown High Side Driver with Undervoltage Shutdown 24V to 28V High Side Switch with Thermal Shutdown †A 51k pullup resistor should be connected between Status Output and 5V Logic Supply. |
Similar Part No. - LTC1154_15 |
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Similar Description - LTC1154_15 |
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