ZY2120 Power-One, ZY2120 Datasheet
ZY2120
Related parts for ZY2120
ZY2120 Summary of contents
Page 1
... The ZY2120 eliminates the need for external components for sequencing, tracking, protection, monitoring, and reporting. Performance parameters of the ZY2120 are programmable by pin strapping and an external resistor, and can be changed by the user at any time during product development and service without a need for a communication bus ...
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: ZY2120G-R1: A 48-piece tray of RoHS compliant POL converters. Each POL converter is labeled ZY2120G. 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 ZY2120 degrades resulting in increased internal power dissipation. Maximum allowable negative current is limited to 20A. 2 Digital PWM has an inherent quantization uncertainty of ±6.25mV that is not included in the specified static regulation parameters. ...
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-02139 Rev. 1.0 04NOV08 ZY2120 20A 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
... Recommended C Output Current Monitoring Accuracy Conversion Ratio corresponding to 100% of nominal current Type Voltage Drop Compensation Voltage Drop Compensation ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input Conditions/Description Current Share (CS pin) I ≥20%*I OUT MIN OUT NOM Tracking Proportional to SYNC frequency ...
Page 6
... ViH_CS Vhyst_CS Hysteresis of input Schmitt trigger IoL_CS LOW level sink current V(CS)=0.5V Tr_CS Maximum allowed rise time 10/90% VDD ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A 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 0 ...
Page 7
... 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-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input Vo=2. Figure 3. Efficiency vs. Load. Vin=14V, Fsw=500kHz Vo=2. www.power-one.com • ...
Page 8
... Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3 5.3 Turn-Off Characteristics Figure 5. Tracking Turn-Off Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3 ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A 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%-75%-50% step load at 1.0A/μ ...
Page 9
... NC 100 LFM (0.5 m/s) 16 200 LFM (1 m/s) 300 LFM (1.5 m/s) 400 LFM (2 m/ Figure 9. Thermal Derating Curves. Vin=12V, Vout=3.3V ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input 40 50 Ambient Temperature Ambient Temperature, C www.power-one.com • 0.5V to 5.5V Output Preliminary Data Sheet 60 ...
Page 10
... LFM 100 LFM (0.5 m/s) 16 200 LFM (1 m/s) 300 LFM (1.5 m/s) 400 LFM (2 m/ Figure 10. Thermal Derating Curves. Vin=12V, Vout=5.0V ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input 40 50 Ambient Temperature, C www.power-one.com • 0.5V to 5.5V Output Preliminary Data Sheet 60 70 Page ...
Page 11
... 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 4 and Figure 5. ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input OK VIN 22uF ...
Page 12
... Connect OK pin to other Z-POLS. Leave open if Fault Status Frequency Synchronization Connect SYNC pin to other Z-POLS Line Power Good Connect CS pin to other ZY2120s connected in Current Share/Sense Connect to GND to make the POL the clock Master Mode master or leave open to synchronize to an Compensation Coefficient ...
Page 13
... TRIM, Output Voltage Trim The input of the TRIM comparator for the output voltage programming. ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input The output voltage is programmed by a single resistor connected between MARGIN and TRIM pins. Table 1. Trim Resistor Values ...
Page 14
... R DOWN TRIM − 100 ⎝ ZD-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input where R TRIM ΔV% is the absolute value of desired margining expressed in percents of the nominal output voltage. During normal operation the resistors are removed from the circuit by the switches. ...
Page 15
... 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-02139 Rev. 1.0 04NOV08 ZY2120 20A No-Bus POL Data Sheet 8V to 14V Input Figure 14. Mechanical Drawing www.power-one.com • ...