hip6020 Intersil Corporation, hip6020 Datasheet
hip6020
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hip6020 Summary of contents
Page 1
... Data Sheet Advanced Dual PWM and Dual Linear Power Controller The HIP6020 provides the power control and protection for four output voltages in high-performance, graphics intensive microprocessor and computer applications. The IC integrates two PWM controllers and two linear controllers, as well as the monitoring and protection functions into a 28-pin SOIC package. One PWM controller regulates the microprocessor core voltage with a synchronous-rectifi ...
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... Block Diagram - + 2-282 HIP6020 ...
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... C OUT3 Q5 V OUT4 1.8V C OUT4 2-283 HIP6020 Q3 PWM2 CONTROLLER CONTROLLER HIP6020 LINEAR LINEAR CONTROLLER CONTROLLER VCC OCSET2 Q3 UGATE2 PHASE2 VSEN2 SELECT VAUX HIP6020 DRIVE3 VSEN3 DRIVE4 VSEN4 GND Q1 V PWM1 OUT4 OCSET1 POWERGOOD PGOOD UGATE1 Q1 L OUT1 PHASE1 LGATE1 Q2 C OUT1 ...
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... VSEN3,4 Under-Voltage Level VSEN3,4 Under-Voltage Hysteresis Output Drive Current SYNCHRONOUS PWM CONTROLLER ERROR AMPLIFIER DC Gain Gain-Bandwidth Product Slew Rate 2-284 HIP6020 Thermal Information Thermal Resistance (Typical, Note 1) SOIC Package 0.3V CC Maximum Junction Temperature (Plastic Package .150 Maximum Storage Temperature Range . . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s .300 ...
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... MOSFETs controlled by the IC. The voltage at this pin is monitored for Power-On Reset (POR) purposes. GND (Pin 17) Signal ground for the IC. All voltage levels are measured with respect to this pin. 2-285 HIP6020 SYMBOL TEST CONDITIONS I VCC = 12V, V (or V UGATE ...
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... Connect this pin to the output of the linear 1.8V regulator. This pin is monitored for undervoltage events. Description Operation The HIP6020 monitors and precisely controls 4 output voltage levels (Refer to Figures 1, 2, and 3 designed for microprocessor computer applications with 3.3V, 5V, and 12V bias input from an ATX power supply. The IC has 2 PWM and ...
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... GTL bus power (V ) and the 1.8V memory power (V OUT3 Initialization The HIP6020 automatically initializes upon receipt of input power. Special sequencing of the input supplies is not necessary. The Power-On Reset (POR) function continually monitors the input supply voltages. The POR monitors the bias voltage (+12V ...
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... The PWM1 controller operates in the same way as PWM2 to over-current faults. Additionally, the two linear controllers monitor the VSEN pins for an under-voltage. Should 2-288 HIP6020 excessive currents cause VSEN3 or VSEN4 to fall below the linear under-voltage threshold, the LUV signal sets the over- current latch, providing C ...
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... AGP output voltage is by default set to 3.3V. The other discrete setting available is 1.5V, which can be obtained by grounding the SELECT pin using a jumper or another suitable method capable of sinking a few tens of microamperes. The status of the SELECT pin cannot be changed during operation of the IC without immediately causing a fault condition. 2-289 HIP6020 VID4 ...
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... There are two sets of critical components in a DC-DC converter using a HIP6020 controller. The switching power components are the most critical because they switch large amounts of energy, and as such, they tend to generate equally large amounts of noise ...
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... The compensation network consists of the error amplifier (internal to the HIP6020) and the impedance networks The goal of the compensation network is to provide a FB closed loop transfer function with high 0dB crossing frequency (f ) and adequate phase margin. Phase margin is the ...
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... Given a sufficiently fast control loop design, the HIP6020 will provide either 0% or 100% duty cycle in response to a load transient. The response time is the time interval required to slew the inductor current from an initial current value to the post-transient current level ...
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... I TRAN recovery of the lower MOSFET’s body diode. The gate OUT charge losses are dissipated by the HIP6020 and don't heat the MOSFETs. However, large gate-charge increases the is the RISE switching time the FALL switching losses ...
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... IN 2-294 HIP6020 Linear Controllers Transistor Selection The HIP6020 linear controllers are compatible with both NPN bipolar as well as N-Channel MOSFET transistors. The main criteria for selection of pass transistors for the linear regulators is package selection for efficient removal of heat. The power dissipated in a linear regulator is ...
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... HIP6020 DC-DC Converter Application Circuit Figure 14 shows an application circuit of a power supply for a microprocessor computer system. The power supply provides the microprocessor core voltage (V bus voltage (V ), the GTL bus voltage (V OUT2 memory voltage (V ) from +3.3V, +5VDC, and +12VDC. OUT4 +12V GND ...