ZY2105 Power-One, ZY2105 Datasheet
ZY2105
Available stocks
Related parts for ZY2105
ZY2105 Summary of contents
Page 1
... Reduces board space, system cost and complexity, and time to market Description The ZY2105 is an intelligent, fully programmable step-down point-of-load DC-DC module integrating digital power conversion and power management. The ZY2105 completely eliminates the need for external components for sequencing, tracking, protection, monitoring, and reporting. ...
Page 2
... Mercury (Hg), Polybrominated biphenyls (PBB), Polybrominated diphenylethers (PBDE), and Lead (Pb) used anywhere except in solder. 2 Packaging option is used only for ordering and not included in the part number printed on the POL converter label. Example: ZY2105G-R3: A 48-piece tray of RoHS compliant POL converters. Each POL converter is labeled ZY2105G. 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 POL converter ...
Page 3
... Temperature Coefficient Switching Frequency 1 At the negative output current (bus terminator mode) efficiency of the ZY2105 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 5.5 2 Digital PWM has an inherent quantization uncertainty of ± ...
Page 4
... Follows the output voltage setpoint From instant when threshold is exceeded until Delay Threshold Accuracy ___________________ 1 Minimum OVP threshold is 1.0V ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input Conditions/Description Output Overcurrent Protection Output Overvoltage Protection Measured at V =2.5V O.SET Output Undervoltage Protection Measured ...
Page 5
... Turn-On Delay From EN pin changing state to V Turn-Off Delay CCA pin is open combination of ceramic + tantalum CCA pin is connected to GND Recommended C ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input Conditions/Description Tracking Proportional to SYNC frequency Proportional to SYNC frequency Enable (EN pin) OUT ...
Page 6
... Iup_OK Pull-up current source V(OK)=0 ViL_x ViH_x Vhyst_x Hysteresis of input Schmitt trigger IoL_x LOW level sink current at 0.5V ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input Conditions/Description Internal supply voltage 3.15 SYNC Line LOW level input voltage 0.75 x HIGH level input voltage VDD ...
Page 7
... Output Current, A Figure 1. Efficiency vs. Load. Vin=9. Vo=5V Vo=3.3V 60 Vo=1.8V Vo=1. Output Current, A Figure 2. Efficiency vs. Load. Vin=12V ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input Vo=2.5V 60 0 Figure 3. Efficiency vs. Output Voltage, Iout= Vo=2.5V Vo=1.2V 75 ...
Page 8
... Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3 5.3 Turn-Off Characteristics Figure 6. Tracking Turn-Off Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3 ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input 5.4 Transient Response The pictures below show the deviation of the output voltage in response to the 50%-100%-50% step load at 2.5A/µ ...
Page 9
... Thermal Derating Curve 5 4.5 4 3.5 3 2.5 2 1.5 0LFM 100LFM Figure 11. Thermal Derating Curves. Vin=12V, Vout=5V ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input Figure 10. Vin=12V, Vout=1V. CCA=1 200LFM 300LFM Ambient Temperature, 'C www.power-one.com 0.5V to 5.5V Output • 400LFM 500LFM 80 85 Page ...
Page 10
... POL1 is configured as a master (IM pin is grounded) and all other POL converters are synchronized to the switching frequency of POL1. All converters are controlled by the common ENABLE signal. Turn-on and turn-off processes of the system are illustrated by pictures in Figure 5 and Figure 6. ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input OK VIN 22uF 4 ...
Page 11
... GND 7 P VIN 11 P Legend: I=input, O=output, I/O=input/output, P=power, A=analog, PU=internal pull-up ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input Pin Description Connect to OK pin of other Z- POLs. Leave Fault Status Frequency Synchronization Connect to SYNC pin of other Z-POLs Line ...
Page 12
... The input of the TRIM comparator for the output voltage programming. The output voltage can be programmed by a single resistor connected between MARGIN and TRIM pins. ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input 9. Application Information 9.1 Output Voltage Programming Resistance of the trim resistor is determined from the equation below: × ...
Page 13
... Margining Up Switch (normally open) R TRIM DOWN Margining Down Switch (normally open) ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input Figure 14. Alternative Margining Configuration R and R UP from the following equations: The “Margining DOWN that may be ...
Page 14
... Power-One, Inc. 2. 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. ZD-01967 REV. B1.1 ZY2105 5A No-Bus POL Data Sheet 8V to 14V Input All Dimensions are in mm XX.X: ±0.1 XX.XX: ± ...