ZY8120 Power-One, ZY8120 Datasheet
ZY8120
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ZY8120 Summary of contents
Page 1
... The ZY8120 is an intelligent, fully programmable multiphase step-down point-of-load DC-DC module integrating digital power conversion and intelligent power management. When used with ZM7000 Series Digital Power Managers, the ZY8120 completely eliminates the need for external components for sequencing, tracking, protection, monitoring, and reporting. All parameters of the ZY8120 are programmable via the industry-standard communication bus and can be changed by a user at any time during product development and service ...
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... Packaging option is used only for ordering and not included in the part number printed on the POL converter label. 3 Z-One evaluation board is available in only one configuration: ZM7300-KIT-HKS. Example: ZY8120G-R1: A 48-piece tray of RoHS compliant POL converters. Each POL converter is labeled ZY8120G. 2. Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect long- term reliability, and cause permanent damage to the converter ...
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... The output voltage should not exceed 5.5 V (taking into account both the programming and remote sense compensation the negative output current (bus terminator mode) efficiency of the ZY8120 degrades resulting in increased internal power dissipation. Therefore maximum allowable negative current under specific conditions is 20% lower than the current determined from the derating curves shown in paragraph 5 ...
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... Type Threshold Enabled during output voltage ramping up Threshold Accuracy From instant when threshold is exceeded until Delay the turn-off command is generated ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Conditions/Description Output Overcurrent Protection Default Programmable Default Programmable in 11 steps Output Overvoltage Protection ...
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... Interleave (Phase Shift) Turn ON Delay Turn OFF Delay Turn ON Slew Rate Turn OFF Slew Rate Load Regulation ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Overtemperature Warning Power Good Signal (PGOOD pin) is inside the PG window OUT is outside the PG window ...
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... If the voltage sense outputs are connected remotely recommended to place a 0.01-0.1μF ceramic capacitor between +VS and –VS pins as close to the POL converter as possible. The capacitor improves noise immunity of the POL converter. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Feedback Loop Compensation ...
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... Pull-up current source input forced low OK ViL_x ViH_x Vhyst_x Hysteresis of input Schmitt trigger IoL LOW level sink current at 0.5V ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Conditions/Description Internal supply voltage SYNC/DATA Line (SD pin) LOW level input voltage 0.75 x HIGH level input voltage ...
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... Figure 1. Efficiency vs. Load. Vin=8V, Fsw=500kHz Vo=5V Vo=3.3V 65 Vo=1.0V Vo=0. Output Current, A Figure 2. Efficiency vs. Load. Vin=12V, Fsw=500kHz ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Vo=2. Figure 3. Efficiency vs. Load. Vin=14V, Fsw=500kHz Vo=2. www ...
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... Figure 5. Turn-On with Different Rising Slew Rates. Rising Slew Rates are Programmed as follows: V1- and V2-0.5V/ms, V3-0.2V/ms. Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3 ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Figure 6. Turn On with Sequencing and Tracking. Rising Slew Rate Programmed at 0.5V/ms, V1 and V2 delays are programmed at 5ms. ...
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... Transient Response The pictures below show the deviation of the output voltage in response to the 50-75-50% step load at 1A/μs. In all tests the ZY8120 converters operated at switching frequency of 500kHz and had a total 330μF of tantalum and ceramic capacitors connected across the output pins. ZD-02138 Rev. 1.0 06NOV08 ...
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... Figure 13. Thermal Derating Curves. Vin=12V, Vout=2.5V, Fsw=500kHz Figure 14. Thermal Derating Curves. Vin=12V, Vout=3.3V, Fsw=500kHz ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input NC 100 LFM (0.5 m/s) 200 LFM (1 m/s) 300 LFM (1.5 m/s) 400 LFM (2 m/ Ambient Temperature 100 LFM (0.5 m/s) 200 LFM (1 m/s) 300 LFM (1 ...
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... IR VSS VSS VSS VSS VSS VSS VSS 10k 8 Figure 16. Block Diagram of Typical Application with Digital Power Manager and I ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input 0 LFM 100 LFM (0.5 m/s) 200 LFM (1 m/s) 300 LFM (1.5 m/s) 400 LFM (2 m/ Ambient Temperature, C ...
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... The schematic of a typical application of ZY8120 point-of-load converters (POL) is shown in Figure 16. The system includes a ZM7300 series Digital Power Manager (DPM), a ZY8120 POL, and may include additional ® ZY8120 POLs and other Z-One series POLs. All POLs are connected to the DPM and to each other via a single- wire SD (sync/data) line ...
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... Output Current Monitoring TMP Temperature Monitoring ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input ZY8120 converters can be programmed using the Graphical User Interface or directly via the I using high and low level commands as described the ‘”DPM Programming Manual”. ...
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... VI characteristic will have a negative slope. Therefore, by properly selecting the operating point possible to increase the headroom as shown in the picture. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input V OUT Upper Regulation Limit Lower Regulation Limit Resolution ...
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... Figure 23, Figure 24, and Figure 26. Figure 22. Sequencing/Tracking Window 8.2.1 Turn-On Delay Turn-on delay is defined as an interval from the application of the Turn-On command until the output voltage starts ramping up. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input R/W-0 R/W-0 DON7 DON6 Bit 7 Bit 7:0 DON[7:0]: Turn-on delay time 00h: corresponds to 0ms delay after turn-on command has occurred … ...
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... I < I LOAD CHG OCP Where I is the overcurrent protection threshold of OCP the ZY8120. If the condition is not met, then the overcurrent protection will be triggered during the turn-on process. To avoid this, dV overcurrent protection threshold programmed to meet the condition above. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL ...
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... These settings are programmed in the GUI Fault Management window shown in Figure directly via the writing into the PC1 register shown in Figure 31. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input R/W-0 R/W-1 R/W-1 CLS2 CLS1 CLS0 Bit Readable bit ...
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... Warning. Note: To retrieve status information, Status Monitoring in the GUI POL Group Configuration Window should be enabled (refer to Digital Power Manager Data Sheet). ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input retrieve the status information from each POL on a continuous basis. 8.3.2 ...
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... The low side switch provides low impedance path to quickly dissipate ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input value of the difference exceeds 250mV, the tracking fault signal is generated, the POL turns off, and the TR bit in the register ST is changed to 0 ...
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... GUI Fault and Error Propagation window shown in Figure 34. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Figure 34. Fault and Error Propagation Window In this case low OK line will signal DPM to pull other ...
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... UV Undervoltage Fault OV Overvoltage Error ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input The POL Figure 36. Turn-On into UVP on V3. The UV Fault Is Programmed To Be Non-Latching and Propagate From Group C to Group A. Ch1 – V3 (Group C), Ch2 – V2, Ch3 – V1 (Group A) Summary of protections, their parameters and ...
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... POLs are independent of each other. permissible to mix POLs operating at different frequencies in one system. It allows optimizing efficiency and transient response of each POL in the system individually. Figure 37. PWM Controller Window ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input R/W- R/ FRQ2 FRQ1 ...
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... LC filter. Figure 40. Input Voltage Noise with Interleave ZY8120 interleave is independent of the number of POLs in a system and is fully programmable in 11.25° steps. It allows maximum output noise reduction by intelligently spreading switching energy ...
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... It is not recommended to use ADC saturation for output voltages higher than 2.0V. The ADC saturation feedforward programmed in the GUI PWM Controller window or ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input directly via the I register bus by 8.4.5 Feedback loop compensation can be programmed in the GUI frequency of poles and zeros of the transfer function ...
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... It is recommended to always add a small amount of load regulation to one of the converters connected in parallel to reduce loop gain and therefore improve stability. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input 8.6 Performance Parameters Monitoring The POL ...
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... ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Figure 45. GUI System Configuration Window www.power-one.com 0.5V to 5.5V Output • Preliminary Data Sheet Page ...
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... ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Figure 46. POL Group Configuration Window The ZY8120 POL converters have no internal fuse. If required, the external fuse needs to be provided to protect the converter from catastrophic failure. Refer to the “Input Fuse Selection for DC/DC converters” ...
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... In order for the output of the ZY8120 POL converter to be considered as SELV (Safety Extra Low ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Voltage), according standards, the input to the POL needs to be supplied by an isolated secondary source providing a SELV also ...
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... The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. ZD-02138 Rev. 1.0 06NOV08 ZY8120 20A DC-DC Intelligent POL 8V to 14V Input Figure 48. Mechanical Drawing Power-One products are not designed, intended for use in, or authorized for use as critical www ...