HIP6303 Intersil Corporation, HIP6303 Datasheet
HIP6303
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HIP6303 Summary of contents
Page 1
... Data Sheet Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller The HIP6303 multi-phase PWM control IC together with its companion gate drivers, the HIP6601, HIP6602 or HIP6603 and Intersil MOSFETs provides a precision voltage regulation system for advanced microprocessors. Multiphase power conversion is a marked departure from earlier single channel converter confi ...
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... Block Diagram VSEN X 0.9 X1.15 EN AND FAULT COMP VID0 VID1 D/A VID2 VID3 FB 2 HIP6303 V PGOOD CC POWER-ON RESET (POR LATCH CLOCK AND S SAWTOOTH GENERATOR + + OVP - - + SOFT- START - LOGIC + - + + E/A - CURRENT CORRECTION I_TOT + + + + + OC - I_TRIP GND THREE STATE + PWM - + PWM - + PWM - + PWM - - CHANNEL NUMBER CHANNEL ...
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... 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 ...
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... CC VSEN PWM4 PWM3 PGOOD PWM2 EN VID3 PWM1 VID2 MAIN CONTROL VID1 HIP6303 VID0 ISEN4 ISEN3 FS/DIS ISEN2 ISEN1 GND 4 HIP6303 +12V BOOT PVCC UGATE VCC PHASE DRIVER PWM HIP6601 LGATE GND +12V BOOT PVCC UGATE PHASE VCC DRIVER PWM HIP6601 NC LGATE ...
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... VSEN CC ISEN1 PGOOD PWM1 EN PWM2 ISEN2 VID3 VID2 MAIN CONTROL VID1 HIP6303 VID0 ISEN3 FS/DIS PWM3 PWM4 GND ISEN4 5 HIP6303 +12V BOOT1 UGATE1 VCC PHASE1 LGATE1 +5V DUAL PVCC DRIVER HIP6602 BOOT2 UGATE2 PHASE2 PWM1 PWM2 LGATE2 GND +12V BOOT3 UGATE3 VCC ...
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... Over-Current Trip Level POWER GOOD MONITOR Under-Voltage Threshold Under-Voltage Threshold PGOOD Low Output Voltage PROTECTION Over-Voltage Threshold Percent Over-Voltage Hysteresis 6 HIP6303 Thermal Information Thermal Resistance (Typical, Note 1) + 0.3V SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CC Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .150 Maximum Storage Temperature Range . . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s .300 ...
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... CORRECTION FIGURE 1. SIMPLIFIED BLOCK DIAGRAM OF THE HIP6303 VOLTAGE AND CURRENT CONTROL LOOPS FOR A TWO POWER CHANNEL REGULATOR Operation Figure 1 shows a simplified diagram of the voltage regulation and current control loops. Both voltage and current feedback are used to precisely regulate voltage and tightly control ...
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... HIP6603 MOSFET driver interfaces with the HIP6303. For more information, see the HIP6601, HIP6602 or HIP6603 data sheets. The HIP6303 is capable of controlling PWM power channels. Connecting unused PWM outputs to V automatically sets the number of channels. The phase relationship between the channels is 360 PWM channels ...
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... If conditions were reversed and the 5V supply was to rise first, the start-up sequence would be different. In this case the HIP6303 will sense an over-current condition due to charging the output capacitors. The supply will then restart and go through the normal Soft-Start cycle. ...
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... PWM outputs into a three state mode. This condition results in the gate driver removing drive to the output stages.The HIP6303 goes into a wait delay timing cycle that is equal to the Soft- Start ramp time. PGOOD also goes “low” during this time due to VSEN going below its threshold voltage ...
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... FIGURE 7. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM SHOWING CURRENT AND VOLTAGE SAMPLING Current Sensing and Balancing Overview The HIP6303 samples the on-state voltage drop across each synchronous rectifier FET, Q2 indication of the inductor current in that channel, see Figure 7. Neglecting AC effects (to be discussed later), the voltage drop across Q2 is ...
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... PK-PK The sawtooth component is dependent on the size of the 12 HIP6303 inductors, the switching frequency of each channel, and the values of the input and output voltage. Ignoring secondary ISEN effects, such as series resistance, the peak to peak value of the sawtooth current can be described by: ...
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... As discussed previously, the voltage drop across each Q2 transistor at the point in time when current is sampled is r (Q2 The voltage at Q2’s drain, the DSON SAMPLE PHASE node, is applied through the R HIP6303 ISEN pin. This pin is held at virtual ground, so the current into ISEN is (Q2 SENSE SAMPLE ...
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... The critical small components include the bypass capacitors for VCC and PVCC on the gate driver ICs. Locate the bypass capacitor for the HIP6303 controller close to BP the device especially important to locate the resistors associated with the input to the amplifiers close to their respective pins, since they represent the input to feedback amplifi ...
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... DUTY CYCLE (V FIGURE 12. RIPPLE CURRENT vs DUTY CYCLE Small values of output inductance can cause excessive power dissipation. The HIP6303 is designed for stable operation for ripple currents up to twice the load current. However, for this condition, the RMS current is 115% above the value shown in the following MOSFET Selection and Considerations section ...
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... It is usually acceptable to omit the diodes and let the body diodes of the lower MOSFETs clamp the negative inductor swing, but efficiency could drop one or two percent as a result. The diode's rated reverse breakdown voltage must be greater than the maximum input voltage. 16 HIP6303 ...
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... For information regarding Intersil Corporation and its products, see web site www.intersil.com Sales Office Headquarters NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (321) 724-7000 FAX: (321) 724-7240 17 HIP6303 M20.3 (JEDEC MS-013-AC ISSUE C) 20 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE SYMBOL A ...