hip6005b Intersil Corporation, hip6005b Datasheet
hip6005b
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hip6005b Summary of contents
Page 1
... Ld SOIC HIP6005BCV TSSOP NOTE: When ordering, use the entire part number. Add the suffi obtain the TSSOP variant in tape and reel, e.g., HIP6005BCV-T. 2-110 Features • Drives N-Channel MOSFET • Operates from +5V or +12V Input • Simple Single-Loop Control Design - Voltage-Mode PWM Control • ...
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... FB Block Diagram VSEN OCSET REFERENCE VID0 D/A VID1 VID2 CONVERTER VID3 (DAC) VID4 FB COMP RT 2-111 HIP6005B +12V VCC OCSET MONITOR AND PROTECTION BOOT OSC UGATE PHASE HIP6005B - + + - COMP GND VSEN 110% RESET (POR 90 OVER- 115% VOLTAGE + - + - OVER- CURRENT 200 A 4V PWM COMPARATOR ...
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... SEN Lower Threshold (V /DACOUT) SEN Hysteresis (V /DACOUT) SEN PGOOD Voltage Low 2-112 HIP6005B Thermal Information Thermal Resistance (Typical, Note 1) SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V CC SOIC Package (with 3in TSSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150 Maximum Storage Temperature Range . . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s 300 ...
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... OCSET I = ---------------------------------------------------- - PEAK over-current trip cycles the soft-start function. SS (Pin 3) Connect a capacitor from this pin to ground. This capacitor, along with an internal 10 A current source, sets the soft-start interval of the converter. 2-113 HIP6005B 100 1000 FIGURE 2. BIAS SUPPLY CURRENT vs FREQUENCY ...
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... T Functional Description Initialization The HIP6005B automatically initializes upon receipt of 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 at the V pin and the input voltage ( the OCSET pin ...
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... R OCSET OCSET presence of switching noise on the input voltage. that is referenced to Output Voltage Program The output voltage of a HIP6005B converter is programmed , the OCSET to discrete levels between 1.8V identification (VID) pins program an internal voltage reference (DACOUT) with a TTL-compatible, 5-bit digital-to-analog converter (DAC). The level of DACOUT also sets the PGOOD and OVP thresholds. Table 1 specifi ...
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... CC as close as practical Modulator Break Frequency Equations The compensation network consists of the error amplifier (internal to the HIP6005B) and the impedance networks Z and Z closed loop transfer function with the highest 0dB crossing and C ). frequency ( the difference between the closed loop phase at f ...
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... ESR -60 10 100 1K 10K 100K FREQUENCY (Hz) FIGURE 8. ASYMPTOTIC BODE PLOT OF CONVERTER GAIN 2-117 HIP6005B Component Selection Guidelines Output Capacitor Selection output capacitor is required to filter the output and supply --------------------- - the load transient current. The filtering requirements are a ...
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... Switching losses also contribute to the overall MOSFET power loss (see the equations below). These equations assume linear voltage-current transitions and are approximations. The gate- charge losses are dissipated by the HIP6005B and do not heat the MOSFET. However, large gate-charge increases the switching interval, t switching losses ...
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... BOOT HIP6005B Q UGATE PHASE - + GND FIGURE 10. UPPER GATE DRIVE - DIRECT V 2-119 HIP6005B Schottky Selection Rectifier D +5V OR +12 diode should be a Schottky type for low power losses. The power dissipation in the Schottky rectifier is approximated by: P COND Q 1 Where the duty cycle = V ...
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... P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (407) 724-7000 FAX: (407) 724-7240 2-120 HIP6005B application note AN9706. Although the Application Note details the HIP6005, the same evaluation platform can be used to evaluate the HIP6005B. Intersil AnswerFAX (407-724-7800) Doc. #99706 2N6394 +12V ...