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HIP6303 Datasheet(PDF) 3 Page - Intersil Corporation |
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HIP6303 Datasheet(HTML) 3 Page - Intersil Corporation |
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3 / 17 page  3 Simplified Power System Diagram Functional Pin Description VID3 (Pin 1), VID2 (Pin 2), VID1 (Pin 3) and VID0 (Pin 4) Voltage Identification inputs from microprocessor. These pins respond to TTL and 3.3V logic signals. The HIP6303 decodes VID bits to establish the output voltage. See Table 1. EN (Pin 5) Enable pin normal operation is with input open or high. A low input disables the regulator and three states the PWM outputs. 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. PWM1 (Pin 15), PWM2 (Pin 14), PWM3 (Pin 11) and PWM4 (Pin 18) PWM outputs for each driven channel in use. Connect these pins to the PWM input of a HIP6601/2/3 driver. For systems which use 3 channels, connect PWM4 high. Two channel systems connect PWM3 and PWM4 high. ISEN1 (Pin 16), ISEN2 (Pin 13), ISEN3 (Pin 12) and ISEN4 (Pin 17) Current sense inputs from the individual converter channel’s phase nodes. Unused sense lines MUST be left open. PGOOD (Pin 19) 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 20) Bias supply. Connect this pin to a 5V supply. SYNCHRONOUS HIP6303 MICROPROCESSOR VSEN VID RECTIFIED BUCK CHANNEL SYNCHRONOUS RECTIFIED BUCK CHANNEL SYNCHRONOUS RECTIFIED BUCK CHANNEL SYNCHRONOUS RECTIFIED BUCK CHANNEL PWM 1 PWM 2 PWM 3 PWM 4 11 12 13 14 15 16 17 18 20 19 10 9 8 7 6 5 4 3 2 1 VID3 VID2 VID1 VID0 EN FS/DIS PWM2 PGOOD PWM3 ISEN4 ISEN1 VCC GND ISEN3 FB PWM4 VSEN COMP PWM1 ISEN2 HIP6303 |
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Similar Description - HIP6303 |
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