HV238FG-G Microchip

Supertex inc. HV238 16-Channel High Voltage Analog Switch With Bleed Resistors Features General Description HVCMOS technology for high performance The Supertex HV238 is a 220V, 16-channel, high voltage analog switch integrated circuit (IC) with output bleed resistors 220V operating conditions (R ). The output switches are configured as 2 sets of 8 single Output on-resistance typically 22 INT pole single throw analog switches. It is intended to be used in Integrated bleed resistors on the outputs applications requiring high voltage switching controlled by low 5.0 and 12.0V CMOS logic compatibility voltage control signals such as ultrasound imaging. Very low quiescent power dissipation (-10A) -45dB min off isolation at 7.5MHz Low parasitic capacitance The 2 sets of 8 analog switches are controlled by 2 input logic controls, D 1 and D 2. A logic high on D 1 will turn on switches Excellent noise immunity IN IN IN 0 to 7 and a logic high on D 2 will turn on switches 8 to 15. The IN Flexible operating supply voltages bleed resistors help to significantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected Applications to the outputs. Medical ultrasound imaging Non-destructive evaluation Block Diagram VDD SW0 DIN1 Level Latch 1 Translator 1 SW0 SW7 VDD SW7 SW8 DIN2 Level Latch 2 Translator 2 LE SW8 GND VPP SW15 VNN SW15 RGND Doc. DSFP-HV238 Supertex inc. B070813 www.supertex.comHV238 Pin Configuration Ordering Information 48 Part Number Package Option Packing 1 HV238FG-G 250/Tray 48-Lead LQFP HV238FG-G M931 1000/Reel -G denotes a lead (Pb)-free / RoHS compliant package Absolute Maximum Ratings Parameter Value 48-Lead LQFP (top view) V logic power supply voltage -0.5V to +15V DD V - V supply voltage 225V PP NN V positive high voltage supply -0.5V to V +225V Product Marking PP NN Top Marking V negative high voltage supply +0.5V to -225V NN Logic input voltages -0.5V to V +0.3V YYWW YY = Year Sealed DD HV238FG WW = Week Sealed LLLLLLLLL Analog signal range V to V NN PP L = Lot Number Peak analog signal current/channel 3.0A C = Country of Origin* Bottom Marking A = Assembler ID* O O Storage temperature -65 C to +150 C CCCCCCCC = Green Packaging Power dissipation 1.0W AAA *May be part of top marking Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation Package may or may not include the following marks: Si or of the device at the absolute rating level may affect device reliability. All voltages are 48-Lead LQFP referenced to device ground. Typical Thermal Resistance Package ja O 48-Lead LQFP 52 C/W Operating Conditions Sym Parameter Value V Logic power supply voltage 4.75V to 12.6V DD V Positive high voltage supply 50V to 110V PP V Negative high voltage supply -10V to V -220V NN PP V High level input voltage V -1.0V to V IH DD DD V Low-level input voltage 0V to 1.0V IL V Analog signal voltage peak-to-peak V +10V to V -10V SIG NN PP O O T Operating free air temperature 0 C to 70 C A Notes: 1. Power up/down sequence is arbtrary except GND must be powered -up first and powered-down last. 2. V must be V V V or floating during power up/down transition. SIG NN SIG PP 3. Rise and fall times of power supplies V , V , and V should not be less than 1.0msec. DD PP NN Doc. DSFP-HV238 Supertex inc. B070813 2 www.supertex.com