PolyZen Devices PolyZen Devices Polymer Protected Zener Diode PolyZen devices are polymer-enhanced, precision Zener diode micro-assemblies. They offer resettable protection against multi-Watt fault events without the need for multi-Watt heat sinks. The Zener diode used for voltage clamping a PolyZen micro-assembly was selected due to its relatively at voltage vs. current response. This helps improve output voltage clamping, even when input voltage is high and diode currents are large. An advanced feature of the PolyZen micro-assembly is that the Zener diode is thermally coupled to a resistively 5 non-linear, PPTC (polymer positive temperature coefcient) layer. This PPTC layer is fully integrated into the device and is electrically in series between V and IN the diode clamped V . OUT This advanced PPTC layer responds to either extended diode heating or overcurrent events by transitioning from a low to high resistance state, also known as tripping. A tripped PPTC will limit current and generate voltage drop. It helps to protect both the Zener diode and the follow-on electronics and effectively increases the diodes power handling capability. The polymer-enhanced Zener diode helps protect sensitive portable electronics from damage caused by inductive voltage spikes, voltage transients, incorrect power supplies and reverse bias. These devices are particularly suitable for portable electronics and other low-power DC devices. Benets Features Stable Zener diode helps shield downstream Overvoltage transient suppression electronics from overvoltage and reverse bias Stable V vs. fault current Z Trip events shut out overvoltage and reverse Time delayed, overvoltage trip bias sources Time delayed, reverse bias trip Analog nature of trip events helps minimize damage Multi-Watt power handling capability from upstream inductive spikes Integrated device construction Minimal power dissipation requirements RoHS compliant Single component placement Applications DC power port protection in portable electronics Internal overvoltage and transient suppression DC power port protection for systems using barrel DC output voltage regulation jacks for power input Tablet PCs and portable electronics RoHS Compliant, ELV CompliantRoHS Compliant, ELV Compliant 33 2013 CP S05-PolyZen.indd 33 8/3/13 11:10 AMFigure PZ1 Typical Application Block Diagram for PolyZen Devices Power Supply (External or Internal) Protected Electronics GND 2 V IN PolyZen 1 Device + V OUT 3 R Regulated LOAD Output Protected Downstream Electronics Table PZ1 Electrical Characteristics for PolyZen Devices (Performance ratings 25C unless otherwise specied) V I V (V) INT MAX FLT MAX Z I HOLD Test Test I R R 20C Zt Typ 1MAX V Current I Voltage INT MAX FLT MAX Min Typ Max (A) (A) () () (V) (A) (A) (V) Part Number 5 ZEN056V130A24LS 5.45 5.60 5.75 0.10 1.30 0.12 0.16 24V 3A +10/-40 +24/-16V ZEN059V130A24LS 5.80 5.90 6.00 0.10 1.30 0.12 0.15 24V 3A +6/-40 +24/-16V ZEN065V130A24LS 6.35 6.50 6.65 0.10 1.30 0.12 0.16 24V 3A +6/-40 +24/-16V ZEN098V130A24LS 9.60 9.80 10.00 0.10 1.30 0.12 0.16 24V 3A +3.5/-40 +24/-16V ZEN132V130A24LS 13.20 13.40 13.60 0.10 1.30 0.12 0.16 24V 3A +2/-40 +24/-16V ZEN164V130A24LS 16.10 16.40 16.60 0.10 1.30 0.12 0.16 24V 3A +1.25/-40 +24/-16V ZEN056V230A16LS 5.45 5.60 5.75 0.10 2.30 0.04 0.06 16V 5A +5/-40 +16/-12V ZEN065V230A16LS 6.35 6.50 6.65 0.10 2.30 0.04 0.06 16V 5A +3.5/-40 +16/-12V ZEN098V230A16LS 9.60 9.80 10.00 0.10 2.30 0.04 0.06 16V 5A +3.5/-40 +16/-12V ZEN132V230A16LS 13.20 13.40 13.60 0.10 2.30 0.04 0.06 16V 5A +2/-40 +20/-12V ZEN056V075A48LS 5.45 5.60 5.75 0.10 0.75 0.28 0.45 48V 3A +10/-40 +48/-16V ZEN132V075A48LS 13.20 13.40 13.60 0.10 0.75 0.28 0.45 48V 3A +2/-40 +48/-16V ZEN056V115A24LS 5.45 5.60 5.75 0.10 1.15 0.15 0.18 24V 3A +10/-40 +24/-16V ZEN056V130A24CE 5.45 5.60 5.75 0.10 1.30 0.070 0.105 24V 3A +10/-40 +24/-16V ZEN056V230A16CE 5.45 5.60 5.75 0.10 2.30 0.032 0.060 16V 5A +5/-40 +16/-12V ZEN056V260A16CE 5.45 5.60 5.75 0.10 2.60 0.032 0.045 16V 5A +5/-40 +16/-12V ZEN132V130A24CE 13.20 13.40 13.65 0.10 1.30 0.070 0.105 24V 3A +3/-40 +24/-16V ZEN132V230A16CE 13.20 13.40 13.65 0.10 2.30 0.032 0.060 16V 5A +3/-40 +16/-12V ZEN132V260A16CE 13.20 13.40 13.65 0.10 2.60 0.032 0.045 16V 5A +3/-40 +16/-12V LS module height is 1.7mm typical. CE module height is 1.0mm typical. Typical operating current is 500A 5.0V which meets USB suspend mode requirement. Table PZ2 Denitions of Terms for PolyZen Devices V Zener clamping voltage measured at current I and 20C. Z ZT I Test current at which V is measured. ZT Z Polymer PTC I Maximum steady state current I that will not generate a trip event at the specied HOLD PTC V IN temperature. Ratings assume I = 0A. FLT V OUT Zener R Typical resistance between V and V pins when the device is at room temperature. T IN OUT yp Diode R The maximum resistance between V and V pins, at room temperature, one hour after 1MAX IN OUT rst trip or after reow soldering. GND I Current owing through the Zener diode. FLT I Maximum RMS fault current the Zener diode component of the device can withstand and FLT MAX I I PTC OUT remain resettable testing is conducted at rated voltage with no load connected to V . OUT V The voltage (V - V post trip) at which typical qualication devices (98% devices, 95% INT MAX IN OUT V IN V OUT condence) survived at least 100 trip cycles and 24 hours trip endurance when tripped at the specied voltage and current (I ). PTC I FLT I Current owing through the PPTC portion of the circuit. PTC I Current owing out the V pin of the device. OUT OUT GND Trip Event A condition where the PPTC transitions to a high resistance state, thereby limiting I , and PTC signicantly increasing the voltage drop between V and V . IN OUT RoHS Compliant, ELV CompliantRoHS Compliant, ELV Compliant 34 2013 CP S05-PolyZen.indd 34 8/3/13 11:10 AM