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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTM4643 датащи(PDF) 11 Page - Analog Devices |
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LTM4643 датащи(HTML) 11 Page - Analog Devices |
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11 / 28 page  LTM8060 11 Rev. 0 For more information www.analog.com PIN FUNCTIONS TRSS1/2/3/4 (Pins N11/M11): Output Tracking and Soft- Start Pins. These pins allow user control of output volt- age ramp rate during start-up. A TRSSn voltage below 0.8V forces the LTM8060 to regulate the FBn pin to equal the TRSSn pin voltage. When TRSSn is above 0.8V, the tracking function is disabled and the internal reference resumes control of the error amplifier. An internal 2μA pull-up current on these pins allow a capacitor to pro- gram output voltage slew rate. These pins are pulled to ground during shutdown and fault conditions; use a series resistor if driving from a low impedance output. These pins may be left floating if the soft-start feature is not being used. PG1/2/3/4 (Pins E9/D10/L3/M2): The PGn pind str the open-drain output of an internal comparator. PGn remains low until the FBn pin is within ±7.5% of the final regulation voltage, and there are no fault conditions. PGn is pulled low during VINn UVLO, thermal shutdown, or when the RUNn pins are low. SHARE1/2/3/4 (Pind K8/K9/F4/F3): Channel 1/2/3/4 Current Sharing Control. Tie SHAREn together when paralleling outputs. LTM8060 can also share current between modules. See Typical Application section for current sharing between channels and current sharing between modules. DNC (Pind E10/L2): Do not connect. BLOCK DIAGRAM 10nF 249k 10pF 0.1µF 1.5µH 10nF 249k 10pF 0.1µF 249k 10pF 0.1µF 10nF 249k 10pF 0.1µF 8060 BD 1.5µH 1.5µH 1.5µH VIN1 VOUT1 FB1 AUX1 CURRENT MODE CONTROLLER HOUSEKEEPING CIRCUITRY TRSS1 RUN1 VIN2 VOUT2 FB2 AUX2 CURRENT MODE CONTROLLER TRSS2 RUN2 VIN34 VOUT3 FB3 AUX3 CURRENT MODE CONTROLLER HOUSEKEEPING CIRCUITRY TRSS3 RUN3 VOUT4 FB4 AUX4 CURRENT MODE CONTROLLER TRSS4 RUN4 |
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