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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ISL6553 Fiches technique(PDF) 3 Page - Intersil Corporation |
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ISL6553 Fiches technique(HTML) 3 Page - Intersil Corporation |
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3 / 15 page  3 Functional Pin Description VID3 VID2 VID1 VID0 VID25mV FS/DIS VSEN PGOOD PWM1 PWM2 VCC FB ISEN1 COMP ISEN2 GND 14 15 16 9 13 12 11 10 1 2 3 4 5 7 6 8 VID3 (Pin 1), VID2 (Pin 2), VID1 (Pin 3), VID0 (Pin 4) and VID25mV (Pin 5) Voltage Identification inputs from microprocessor. These pins respond to TTL and 3.3V logic signals. The ISL6553 decodes VID bits to establish the output voltage. See Table 1. COMP (Pin 6) Output of the internal error amplifier. Connect this pin to the external feedback and compensation network. FB (Pin 7) Inverting input of the internal error amplifier. FS/DIS (Pin 8) Channel frequency, FSW, select and disable. A resistor from this pin to ground sets the switching frequency of the converter. Pulling this pin to ground disables the converter and three states the PWM outputs. See Figure 10. GND (Pin 9) Bias and reference ground. All signals are referenced to this pin. VSEN (Pin 10) Power good monitor input. Connect to the microprocessor- CORE voltage. ISEN2 (Pin 11) and ISEN1 (Pin 14) Current sense inputs from the individual converter channel’s phase nodes. PWM2 (Pin 12) and PWM1 (Pin 13) PWM outputs for each driven channel in use. Connect these pins to the PWM input of a HIP6601/2/3 driver. PGOOD (Pin 15) Power good. This pin provides a logic-high signal when the microprocessor CORE voltage (VSEN pin) is within specified limits and Soft-Start has timed out. VCC (Pin 16) Bias supply. Connect this pin to a 5V supply. Typical Application - Two Phase Converter Using HIP6601 Gate Drivers MAIN CONTROL ISL6553 VID2 VID25mV PGOOD FB +5V COMP PWM2 PWM1 ISEN2 ISEN1 VSEN DRIVER HIP6601 PWM VCC BOOT UGATE PHASE LGATE VIN = +5V PVCC PWM VCC BOOT UGATE PHASE LGATE VIN = +5V DRIVER HIP6601 PVCC FS/DIS GND GND GND VCC +VCORE +12V +12V VID1 VID3 VID0 ISL6553 |
Numéro de pièce similaire - ISL6553_04 |
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Description similaire - ISL6553_04 |
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