HV320 Supertex, Inc., HV320 Datasheet
HV320
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HV320 Summary of contents
Page 1
... Thereafter, the UV/OV supervisors and power-on reset work together to suppress gate turn on until the input power bounce ends. Once ON, HV320 continues to monitor the input voltage and the load current level load fault occurs, the electronic circuit breaker will trip and the pass element will be turned off ...
Page 2
... EE 1.26 1.16 100 1.0 1.26 1.16 100 1 0.5V, External MOSFET is IRFFR120N 100 120 2.0 5.0 1.0 2 HV320 +0.3V to -100V referenced to Vee Voltage -0.3V to +12V -40°C to +85°C -40°C to +125°C -65°C to +150°C Units Conditions V µ -48V EE V Low to High Transition V High to Low Transition mV nA Vuv = V + 1.9V @ 25° ...
Page 3
... SENSE -- - The current sense resistor connected from this pin to the V pin, External MOSFET is IRFB4710*) EE 8.5 10 500 40 400 V Vovh OV t GATEHLUV Vgate Pin programs the circuit breaker trip threshold HV320 V = Vee +1.9V Vee +0. Vee +1.9V, µ Vee +0. Vee, ...
Page 4
... Sense second, it could take more than 200A for 5µs before the fusing element melts. HV320 is an ideal alternative to thermal and manual circuit breakers in DC input applications. It has wide variety of uses in the automotive industry, such as PCB trace / device protection and DC motors and solenoid actuator current limit protection ...
Page 5
... UV and OV limits, a new start up sequence will be initiated. Safety recommendation: For safety critical applications where UL, CSA or other safety agency approvals are required, a fuse must be placed in series with HV320. Although HV320 will protect a fuse from opening in many instances, from the safety agency point of view, ICs cannot displace a fuse. ...
Page 6
... C1 = 16000 x 1.60 C1 ≅ .39µF a .47µF can be used. Under Voltage/Over Voltage Operation GND UV OFF UV ON Vin OFF Pass Transistor 6 HV320 . The value of this cap can POR Req – POR = 10ms and POR = 16K - ...
Page 7
... The use of Kelvin Connection from SENSE -42V, the pin and V EE resistor is recommended 0.005 To Negative Terminal of Power Source 7 HV320 and SENSE pins should EE pin to the respective ends of the current sense To To Vee Sense Pin Pin Sense Resistors To Source ...
Page 8
... OV and UV and providing a resistor feedback path from the gate pin to the UV pin. GND R1 475k 16.2k 511k OV Vee R4 R 10k -48V pin to filter the voltage spikes. EE HV320 Gate Sense 10nF IRFB4710 Vin HV320 LOAD Gate Sense 10nF R5 5 mOhm IRFB4710 8 HV320 LOAD Application Circuit 1 Application Circuit 2 ...
Page 9
... Supertex inc. ©2003 Supertex Inc. All rights reserved. Unauthorized use ofr reproduction prohibited. HV320 LOAD Gate Sense 10nF IRFB4710 9 HV320 pins as shown in the EE Application Circuit 3 1225 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 222-8888 · FAX: (408) 222-4895 www.supertex.com ...