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HIP6301V Datasheet(PDF) 5 Page - Intersil Corporation |
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HIP6301V Datasheet(HTML) 5 Page - Intersil Corporation |
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5 / 20 page  5 FN9034.2 December 27, 2004 HIP6301V and HIP6302V Functional Pin Descriptions VID4, VID3, VID2, VID1 and VID0 (Pins 1 thru 5 - Both Parts) Voltage Identification inputs. The HIP6301V and HIP6302V decode the VID bits to establish the reference voltage (see Table 1). Each pin has an internal 20 µA pull-up current source to 2.5V making the parts compatible with CMOS and TTL logic from 5V down to 2.5V. When a VID change is detected the reference voltage slowly ramps up or down to the new value in 25mV steps. VID input levels above 2.9V may produce an reference-voltage offset inaccuracy. COMP (Pin 6 - Both Parts) Output of the internal error amplifier. Connect this pin to the external feedback and compensation network. FB (Pin 7 - Both Parts) Inverting input of the internal error amplifier. FS/DIS (Pin 8 - Both Parts) 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 - Both Parts) Bias and reference ground. All signals are referenced to this pin. VSEN (Pin 10 - Both Parts) Power good monitor input. Connect to the microprocessor- CORE voltage. PWM1 (Pin 15 - HIP6301V, Pin 14 - HIP6302V), PWM2 (Pin 14 -HIP6301V, Pin 12 - HIP6302V), PWM3 (Pin 11 - HIP6301V only) and PWM4 (Pin 18 - HIP6301V only) PWM outputs for each channel. Connect these pins to the PWM input of the external MOSFET driver. For HIP6301V systems using 3 channels, connect PWM4 high. For two channel systems, connect PWM3 and PWM4 high. ISEN1 (Pin 16 - HIP6301V, Pin 14 - HIP6302V), ISEN2 (Pin 13 - HIP6301V, Pin 11 - HIP6302V), ISEN3 (Pin 12 - HIP6301V only) and ISEN4 (Pin 17 - HIP6301V only) Current sense inputs from the individual converter channel’s phase nodes. Unused sense lines MUST be left open. PGOOD (Pin 19 - HIP6301V, Pin 15 - HIP6302V) Power good. This pin is an open-drain logic signal that indicates when the microprocessor CORE voltage (VSEN pin) is within specified limits and Soft-Start has timed out. VCC (Pin 20 - HIP6301V, Pin 16 - HIP6302V) Bias supply. Connect this pin to a 5V supply. 11 12 13 14 15 16 17 18 20 19 10 9 8 7 6 5 4 3 2 1 VID4 VID3 VID2 VID1 VID0 FS/DIS PWM2 PGOOD PWM3 ISEN4 ISEN1 VCC GND ISEN3 FB PWM4 VSEN COMP PWM1 ISEN2 HIP6301V PINOUT 9 10 11 12 13 14 16 15 8 7 6 5 4 3 2 1 VID4 VID3 VID2 VID1 VID0 FS/DIS VSEN PGOOD PWM2 VCC FB COMP ISEN2 GND HIP6302V PINOUT ISEN1 PWM1 HIP6301V, HIP6302V |
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