Catalogs >
Fairchild Semiconductor >
FSA550 4PST Depletion Mode Isolation Switch

FSA550 4PST Depletion Mode Isolation Switch
7Pages

Catalog excerpts

FSA550 4PST Depletion Mode Isolation Switch - 1

The FSA550 is a high-performance four-pole singlethrow (4PST) normally closed Depletion-Mode isolation switch. The Depletion Mode technology allows the device to conduct signals when there is no VCC available and to isolate the signals when VCC is present. 4PST (NC) Depletion Mode MOSFETs Audio Frequency Range VCC(OFF): 1.6 V to 3.0 V RON: 0.8 RON Flat: 0.01 THD+N: 0.002% Typical Eco Status: Fairchild Green, RoHS Compliant, Halogen Free The FSA550 operates on a wide V CC range for design flexibility. Additionally, select pins allow the internal oscillator frequency to be adjusted between 500 kHz and 750 kHz in 75 kHz steps when V CC is present. This feature is used to shift the electromagnetic interference (EMI) signature to meet customer specifications. Related Resources MP3 Portable Media Players Cellular Phones, Smart Phones Left Speaker Right Speaker Typical Application Ordering Information Part Number Operating Temperature Range Packing Method 12-Ball WLCSP, 3 x 4 Array, 0.4 mm Pitch, 250 µm Ball 3000 Units on Tape and Reel 12-Ball WLCSP(with Backside Laminate), 3 x 4 Array, 0.4 mm Pitch, 250 µm Ball 3000 Units on Tape and Reel © 2011 Fairchild Semiconductor Corporation Rev. 1.0.1 4PST Depletion Mode Isolation Switch FSA550 4PST Depletion Mode Isolation Switch

Open the catalog to page 1

FSA550 4PST Depletion Mode Isolation Switch - 2

4PST Depletion Mode Isolation Switch Pin Assignment (Top Through View) Supply / Control Isolation Circuit Supply Voltage (see Table 1) Oscillator Frequency Control (see Table 2). Used to shift the electromagnetic interference (EMI) signature to meet the customer specifications. System Ground Oscillator Frequency Step Logic SEL1 © 2011 Fairchild Semiconductor Corporation

Open the catalog to page 2

FSA550 4PST Depletion Mode Isolation Switch - 3

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Input Voltage (Select Pins) VSW(ON) VSW(OFF) Supply/Control Voltage DC Switch I/O Voltage (Switch Conducting) DC Switch I/O Voltage (Switch Isolated) DC Input Diode Current Peak Switch Current Pulsed at 1 ms...

Open the catalog to page 3

FSA550 4PST Depletion Mode Isolation Switch - 4

DC Electrical Characteristics Typical values at TA = 25°C unless otherwise specified. Switch-to-GND Leakage Current (Switch Conducting) Switch-to-GND Leakage Current (Switch Isolated) Quiescent Supply Current Input Voltage High (Select Pins)(3) Input Voltage Low (Select Pins) Input Leakage Current (Select Pins) Notes: 2. Guaranteed by test and characterization. 3. Voltages on select control pins must be VCC. AC Electrical Characteristics Typical values at TA = 25°C unless otherwise specified. Turn-On Time VCC to Output Turn-Off Time VCC to Output Off Isolation Total Harmonic Distortion +...

Open the catalog to page 4

FSA550 4PST Depletion Mode Isolation Switch - 5

Open the catalog to page 5

FSA550 4PST Depletion Mode Isolation Switch - 7

TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not intended to be an exhaustive list of all such trademarks. AccuPower Awinda® AX-CAP®* BitSiC Build it Now CorePLUS CorePOWER CROSSVOLT CTL Current Transfer Logic DEUXPEED® Dual Cool™ EcoSPARK® EfficientMax ESBC F-PFS FRFET® SM Global Power Resource GreenBridge Green FPS Green FPS e-Series Gmax GTO IntelliMAX ISOPLANAR Making Small Speakers Sound Louder and Better™ MegaBuck MICROCOUPLER MicroFET MicroPak MicroPak2 MillerDrive...

Open the catalog to page 7