分析vcore的33v5v力量管理者電路(1)(文件)
【正文】 ency) TimesNumber channels.. . 100kHz to 6MHzThe features of controller HIP630122 Introduce the HIP6301 controller (Cont.)23 Introduce the HIP6301 controller (Cont.)Pin DescriptionPIN NAME FUNCTION1,2,3,4,5 VID(4..0) Voltage Identification inputs from microprocessor. These pins respond to TTL and logic signals. The HIP6301 decodes VID bits to establish the output voltage.6 COMP Output of the internal error amplifier. Connect this pin to the external feedback and pensation work.7 FB Inverting input of the internal error amplifier.8 FS/DIS 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.9 GND Bias and reference ground. All signals are referenced to this Pin.10 VSEN Power good monitor input. Connect to the microprocessorCORE voltage.24 Introduce the HIP6301 controller (Cont.)Pin DescriptionPIN NAME FUNCTION11,14,15,18 PWM(1..4)PWM outputs for each driven channel in use. Connect thesepins to the PWM input of a driver. For systems which use 3 channels, connect PWM4 high. Two channel systems connect PWM3 and PWM4 high.12,13,16,17ISEN(1..4) Current sense inputs from the individual converter channel’s phase nodes. Unused sense lines MUST be left open.19 PGOOD Power good. This pin is an opendrain logic signal that indicates when the microprocessor CORE voltage (VSEN pin) is within specified limits and SoftStart has timed out.20 VCC Bias supply. Connect this pin to a 5V supply.25 Introduce the HIP6301 controller (Cont.)The phase relationship between the channels is 360 degree/number of active PWM channels26 Analyze the CPU Vcore regulator Schematics274. Conclusions? MultiPhase circuit is the proper power solution for today’s notebook PC CPU? Constrains to acmodate the following factors:input voltage range, load dynamic range,ponent value tolerance variation,temperature change, etc.28QAThanks29。 SEQ = VL: before 5V, RESET output determined by both outputs16 DH5 GateDrive Output for the 5V, highside N
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