ZY8140 Power-One, ZY8140 Datasheet
ZY8140
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ZY8140 Summary of contents
Page 1
... The ZY8140 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 ZY8140 completely eliminates the need for external components for sequencing, tracking, protection, monitoring, and reporting. All parameters of the ZY8140 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: ZY8140G-R1: A 30-piece tray of RoHS compliant POL converters. Each POL converter is labeled ZY8140G. 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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... Duty Cycle 1 ZY8140 is a step-down converter, thus the output voltage is always lower than the input voltage as show in Figure the negative output current (bus terminator mode) efficiency of the ZY8140 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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... Threshold Accuracy Type Threshold Programmable in 10% steps Threshold Accuracy From instant when threshold is exceeded until Delay the turn-off command is generated ZD-01977 REV. 1.0 ZY8140 40A 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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... Lower Threshold Upper Threshold From instant when threshold is exceeded until Delay status of PG signal changes Threshold Accuracy ___________________ 1 Minimum OVP threshold is 1.0V ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Output Undervoltage Protection Default Programmable Default Programmable in 5% steps Measured at V =2.5V O.SET ...
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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-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Conditions/Description Current Share I ≥ ...
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... ViH_CS Vhyst_CS Hysteresis of input Schmitt trigger IoL LOW level sink current at 0.5V Tr_CS Maximum allowed rise time 10/90% VDD ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Conditions/Description Internal supply voltage 3.15 SYNC/DATA Line (SD pin) LOW level input voltage 0.75 x HIGH level input voltage VDD 0 ...
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... Output Current, A Figure 2. Efficiency vs. Load. Vin=9.6V, Fsw=500kHz Vo=0.75V Vo=1.0V Vo=1.8V Vo=2. Output Current, A Figure 3. Efficiency vs. Load. Vin=12V, Fsw=500kHz ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input 0 Figure 4. Efficiency vs. Output Voltage, Iout=40A Vo=1.2V 85 Vo=3. Figure 5 ...
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... Iout=40A 5.2 Turn-On Characteristics Figure 7. Tracking Turn-On. Rising Slew Rate is Programmed at 0.5V/ms. Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3 ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Vo=1.8V Vo=3.3V 1000 Figure 8. 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 – ...
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... Transient Response The picture below shows the deviation of the output voltage in response to the 50-75-50% step load at 1A/µs. In all tests the ZY8140 converters had the switching frequency of 1MHz and a total of 330µF ceramic and tantalum capacitors connected across the output pins. Bandwidth of the feedback loop was programmed for faster transient response ...
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... LFM 100 LFM (0.5 m/s) 200 LFM (1 m/s) 20 300 LFM (1.5 m/s) 400 LFM (2 m/s) 500 LFM (2.5 m/ Figure 15. Thermal Derating Curves. Vin=12V, Vout=3.3V, Fsw=1MHz ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Ambient Temperature Ambient Temperature, C www.power-one.com 0.5V to 3.65V Output • ...
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... Typical Application Figure 16. Block Diagram of Typical Multiple Output Application with Digital Power Manager and I The schematic of a typical application of ZY8140 point-of-load converters (POL) is shown in Figure 16. The system includes a ZM7300 series Digital Power Manager (DPM), a ZY8140 POL, and may include additional ® ...
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... P 17 VIN 1 P Legend: I=input, O=output, I/O=input/output, P=power, A=analog, PU=internal pull-up ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Pin Description Connect to OK pin of other Z-POL and/or DPM. Fault/Status Condition Sync/Data Line Power Good Connect to CS pin of other Z-POLs connected in ...
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... Output Current Monitoring TMP Temperature Monitoring ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input ZY8140 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-01977 REV. 1.0 ZY8140 40A 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-01977 REV. 1.0 ZY8140 40A 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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... LOAD CHG OCP Where I is the overcurrent protection threshold of OCP the ZY8140. 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-01977 REV. 1.0 ZY8140 40A 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-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input R/W-1 R/W-1 CLS1 CLS0 Bit Readable bit W = Writable bit U = Unimplemented bit, read as ‘ ...
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... POL Group Configuration Window should be enabled (refer to Digital Power Manager Data Sheet). retrieve the status information from each POL on a continuous basis. ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input 8.3.2 Faults This group includes overcurrent, overtemperature, undervoltage, and tracking protections. ...
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... The low side switch provides low impedance path to quickly dissipate ZD-01977 REV. 1.0 ZY8140 40A 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-01977 REV. 1.0 ZY8140 40A 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-01977 REV. 1.0 ZY8140 40A 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-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input R/W-0 R/W-0 FRQ2 FRQ1 Bit 7 Bit 7:5 FRQ[2:0] : PWM Frequency Selection ...
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... Resulting noise reduction is more than 2 times and is equivalent to doubling switching frequency or adding extra capacitance on the output of the POLs. ZY8140 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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... GUI PWM Controller window or 2 directly via the I C bus by writing into the DCL register. ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input 8.4.5 Feedback Loop Compensation 2 C bus by Feedback loop compensation can be programmed in the GUI PWM Controller window by setting 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-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input 8.6 Performance Parameters Monitoring The POL ...
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... ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Figure 45. GUI System Configuration Window www.power-one.com 0.5V to 3.65V Output • Data Sheet Page ...
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... ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input Figure 46. POL Group Configuration Window The ZY8140 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 ZY8140 POL converter to be considered as SELV (Safety Extra Low ZD-01977 REV. 1.0 ZY8140 40A 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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... TECHNICAL REVISIONS - 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 trademark of Philips Corporation. ZD-01977 REV. 1.0 ZY8140 40A DC-DC Intelligent POL 8V to 14V Input All Dimensions are in mm XX.X: ±0.1 XX.XX: ±0.05 Figure 48. Mechanical Drawing Figure 49. Recommended Footprint – ...