SEN012-013 SENZero Family 1 Zero Loss High Voltage Sense Signal Disconnect IC High-Voltage Product Highlights DC Rail Features and Performance Eliminates significant standby losses Disconnects unnecessary circuit blocks during standby, remote- off, or light-load conditions System V CC Ultra low leakage (maximum 1 mA) 650 V MOSFETs VCC D1 D2 <0.5 mW per channel during standby System Single component provides remote disconnect functionality Standby Signal No external components or additional bias supply needed for remote-off Integrates multiple disconnect MOSFETs, gate drive, and protection Minimal component count provides higher reliability G S1 S2 SENZero Protection features to help production/manufacturing yields To Controller(s) Sense Pins Pin-to-pin fault and ESD protection System Triggerable via remote-off signal or load conditions Ground PI-5813-032510 Integrated gate pull down circuit protects against loss of trigger signal fault Figure 1. Typical Application SEN012. Green package technology RoHS compliant and halogen free Withstands high differential surge conditions High-Voltage S1, S2 and S3 interface with controller pins up to 6.5 V above DC Rail system ground EcoSmart Energy Efficient <3 mW loss at 230 VAC in Off/standby mode System V CC VCC D1 D2 D3 Applications System ACDC converters with high-voltage resistive signal paths Standby Ideal for all very low standby systems such as those meeting EuP Signal Lot 6 and similar energy efficiency standards Description SENZero is a compact low-cost solution to eliminate losses in resistive G S1 S2 S3 SENZero signal paths connected between high-voltage rails and switching power To Controller(s) supply controller(s). Examples include feed-forward or feedback signal Sense Pins paths connected to boost controllers in power factor corrected systems System Ground and feed-forward signal paths in two switch forward / LLC / half and PI-5812-032510 full bridge converters. Figure 2. Typical Application SEN013. The device is available in 2 (SEN012) and 3 (SEN013) channel versions according to the applications requirements. The internal gate drive and protection circuitry provides gate drive signals to the internal 650 V Component Selection Table MOSFETs in response to the voltage applied to the VCC pin. This 230 VAC simple configuration provides easy integration into existing systems by Integrated Disconnect 2 Product Power Consumption using the system V rail as an input to the SENZero. MOSFETs CC in Standby The SENZero family uses a low cost compact SO-8 package to reduce SEN012DG 2 <1 mW PCB area while the pin configuration is designed to meet pin-pin fault SEN013DG 3 <1.5 mW conditions. Table 1. Component Selection Table. Notes: 1. IEC 16301 clause 4.5 rounds standby power use below 5 mW to zero. 2. Package: D: SO-8. Figure 3. SO-8 D Package. www.power.com May 2015SEN012-013 SUPPLY (VCC) DRAIN1 (D1) DRAIN2 (D2) DRAIN3 (D3) Gate Drive STEP and DOWN Protection SOURCE3 (S3) SOURCE2 (S2) SOURCE1 (S1) GROUND (G) PI-5815-012810 Figure 4. SENZero Functional Block Diagram 650 Pin Functional Description V = 0 S SOURCE (S1, S2, S3) Pins: 600 V = 3 S Internally connect to the SOURCEs of MOSFETs 1, 2 and 3 V = 6.5 S respectively. 550 T = 25 C J DRAIN (D1, D2, D3) Pins: Internally connect to the DRAINs of MOSFETs 1, 2 and 3 respectively. 500 VOLTAGE SUPPLY (VCC) Pin: 450 The internal MOSFETs are fully turned on when the VCC pin voltage is V (see parameter table) or more greater than their SOURCE CC(ON) 400 voltage relative to GROUND. VCC pin should be connected to GROUND to turn the MOSFETs off. 350 GROUND (G) Pin: 300 This is the ground reference for all the SENZero pin voltages. 4 5 6 7 8 9 10 11 V -V (V) CC S Figure 6. Typical R as a Function of V -V Voltage. DS(ON) CC S D Package (SO-8) 550 V -V = 6 V CC S SEN012DG SEN013DG V -V = 5 V CC S 1 8 1 8 500 S1 VCC S1 VCC 7 7 2 2 D1 G D1 G 6 6 3 3 NC NC D2 D3 450 4 5 4 5 S2 D2 S2 S3 400 PI-5814-051710 Figure 5. Pin Configuration. 350 0 1 2 3 4 5 6 7 V (V) S Figure 7. Typical R as a Function of V Voltage. DS(ON) S 2 Rev. C 05/15 www.power.com R () R () DS(ON) DS(ON) PI-5939-071610 PI-5938-071610