ipm6220a Intersil Corporation, ipm6220a Datasheet
ipm6220a
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ipm6220a Summary of contents
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... Data Sheet Advanced Triple PWM and Dual Linear Power Controller for Portable Applications The IPM6220A provides a highly integrated power control and protection solution for five output voltages required in high- performance notebook PC applications. The IC integrates three fixed frequency pulse-width-modulation (PWM) controllers and two linear regulators along with monitoring and protection circuitry into a single 24 lead SSOP package ...
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Block Diagram VSEN3 GATE3 BOOST RAMP 2 CONTROLLER CLK1 CLK2 REF BOOT2 GATE LOGIC 2 UGATE2 HGDR2 HI PHASE2 PWMMD2 SHUTOFF DEADTIME VCC PWM/HYST LGDR2 LGATE2 PWM ON LO HYST ON OVP2 PGND2 HYST COMP2 VSEN2 - CLK2 OC COMP2 ...
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... Typical Application 5V MAIN SDWN1 3.3V MAIN SDWN2 5V ALWAYS IPM6220A 3.3V ALWAYS 12V SDWNALL 3 IPM6220A VBATT LINEAR CONTROLLER PWM1 CONTROLLER LINEAR CONTROLLER VOLTAGE, IPM6220A CURRENT MONITORS PWM3 PWM2 CONTROLLER CONTROLLER FIGURE 2. +V BATT IPM6210 VID CODE C8051 SDWN PCM CIA ENABLE ON/OFF FIGURE 3. VBATT ...
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... Under-Voltage Shut-Down Level Current Limit Threshold Over-Voltage Threshold Maximum Duty Cycle Internal Resistance to GND on VSNS2 Pin 4 IPM6220A Thermal Information Thermal Resistance (Typical, Note 1) SSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature (Plastic Package 150°C Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C Maximum Lead Temperature (Soldering 10s 300°C ...
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... Power Good Threshold for PWM1 and PWM2 Output Voltages PGOOD Leakage Current PGOOD Voltage Low PGOOD Minimum Pulse Width SDWN1 Low (Off) SDWN1 High (On) SDWNALL - High (On) SDWNALL - Low (Off) Over-Temperature Shutdown Over-Temperature Hysteresis 5 IPM6220A SYMBOL TEST CONDITIONS R 2UGPUP R 2UGPDN R 2LGPUP R 2LGPDN VSEN3 ...
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... GND (Pin 14) Signal ground for the IC. All voltage levels are measured with respect to this pin. General Description The IPM6220A addresses the system electronics power needs of modern notebook and sub-notebook PCs. The IC integrates control circuits for two synchronous buck ...
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... MOSFETs’ source. To set the current limit, place a resistor, RSNS, between the ISEN inputs and the drain of the lower MOSFET (or optional current sense resistor). The required value of the RSNS resistor is determined from the following equation: 7 IPM6220A Rcs § RSNS ----------------- - Iocdc = ...
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... IPM6220A The mode change from hysteretic to PWM can be caused by one of two events. One event is the same mechanism that causes a PWM to hysteretic transition. But instead of looking ...
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... By varying the values of the soft-start capacitors possible to provide sequencing of the main outputs at startup. Figure 7 shows the soft-start initiated by the SDWNALL pin being pulled high with the Vbatt input at 10.8V and the resulting 3.3V Main and 5V Main outputs. 9 IPM6220A SDWN2, 2V/DIV MAIN 3V MAIN T0 T1 FIGURE 7 ...
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... ALWAYS outputs. Power Good Status t The IPM6220A monitors all the output voltages except for the 3.3V ALWAYS. A single power-good signal, PGOOD, is issued when soft-start is completed and all monitored outputs are within 10% of their respective set points. After the soft-start sequence is completed, undervoltage protection latches the chip off when any of the monitored outputs drop below 75% of its set point ...
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... Given a sufficiently fast control loop design, the IPM6220A will provide either 0% or 94% 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 load current level ...
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... The equations assume linear voltage-current transitions and do not model power loss due to the reverse-recovery of the lower MOSFET’s body diode. The gate-charge losses are dissipated by the IPM6220A and do not heat the MOSFETs. However, a large gate-charge increases the switching time which increases the upper MOSFET switching losses. ...
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... AN9915 for the evaluation board component placement and the printed circuit board layout details. There are two sets of critical components in a DC-DC converter using an IPM6220A 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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... L1 R10, 11 (5A) 8.2PH + C22 Q4 330PF HUF76112SK8 C16 0.022PF 14 IPM6220A C3 3x1PF VBATT 1 BOOT1 24 2 UGATE1 23 5V ALWAYS 6 PHASE1 22 R9, 19 ISEN1 21 2.2K IPM6220A BOOT2 3 LGATE1 20 PGND1 19 UGATE2 4 PHASE2 5 VSEN1 ISEN2 18 9 2.2K GATE3 LGATE2 16 7 PGND2 8 VSEN3 VSEN2 15 10 SDWN1 SDWN2 11 17 SDWNALL PGOOD ...
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... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 15 IPM6220A M24.15 24 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE M ...