FSA550 ONSEMI | Alldatasheet
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© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA550 • Rev. 1.0.1 FSA550 — 4PST Depletion Mode Isolation Switch FSA550 4PST Depletion Mode Isolation Switch
Features
4PST (NC) Depletion Mode MOSFETs Audio Frequency Range VCC(OFF): 1.6 V to 3.0 V RON: 0.8 Ω Typical RON Flat: 0.01 Ω Typical THD+N: 0.002% Typical Eco Status: Fairchild Green, RoHS Compliant, Halogen Free
Applications
MP3 Portable Media Players Cellular Phones, Smart Phones
Description
The FSA550 is a high-performance four-pole single- throw (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. 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 FSA550 Evaluation Board Typical Application
Ordering Information
Temperature Range Package Packing Method FSA550UCX M4 -40 to +85°C 12-Ball WLCSP, 3 x 4 Array, 0.4 mm Pitch, 250 µm Ball
3000 Units on
FSA550BUCX M4 -40 to +85°C 12-Ball WLCSP(with Backside Laminate), 3 x 4 Array, 0.4 mm Pitch, 250 µm Ball L_SPKR R_SPKR GND Left Speaker Right Speaker Vcc Control IC Gnd FSA550
12 Ball WL-CSP Top View
Figure 1. Pin Assignment (Top Through View) Table 1. Truth Table Table 2. Oscillator Frequency Step Logic
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA550 • Rev. 1.0.1 3 FSA550 — 4PST Depletion Mode Isolation Switch Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may dama ge 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. Symbol Parameter Min. Max. Unit VCC Supply/Control Voltage 0 4.6 V VIN Input Voltage (Select Pins) 0 VCC V VSW(ON) DC Switch I/O Voltage (Switch Conducting) VCC=0 V -4 +4 V VSW(OFF) (1) DC Switch I/O Voltage (Switch Isolated) VCC=Powered -0.5 3.0 V IIK DC Input Diode Current -50 mA ISW Switch I/O Current VCC=0 V (Switch Conducting) 350 mA ISWPEAK Peak Switch Current Pulsed at 1 ms Duration, <10% Duty Cycle 500 mA ESD Human Body Model, ANSI/ESDA/JEDEC JS-001-2012 All Pins 5.0 kV Charged Device Model, JEDEC: JESD22-C101 1.5 IEC 61000-4-2 System Contact 8.0 Air Gap 15.0 TSTG Storage Temperature -65 +150 °C Note: 1. When a switch is isolated (OFF), V SW value must be < VCC. Recommended Operating Conditions The Recommended Operating Conditions table defines the condi tions for actual device operation. Recommended operating conditions are specified to ensure optimal perfo rmance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Min. Max. Unit VCC(ON) Supply Voltage with Switch Conducting 0 0.2 V VCC (OFF) Supply Voltage with Switch Isolated 1.6 3.0 V VSW(ON) DC Switch I/O Voltage (Switch Conducting) VCC = 0 V -2 2 V VSW(OFF) DC Switch I/O Voltage (Switch Isolated) VCC = 1.6 V to 3.0 V 0 1.4 V
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA550 • Rev. 1.0.1 4 FSA550 — 4PST Depletion Mode Isolation Switch Typical values at TA = 25°C unless otherwise specified. Symbol Parameter Condition VCC (V) TA=- 40ºC to +85ºC Unit Min. Typ. Max. ION Switch-to-GND Leakage Current (Switch Conducting) An = -1.4 V to 1.4 V, Bn = Float 0 0 0.3 1.0 µA IOFF Switch-to-GND Leakage Current (Switch Isolated) An = 0.4 V to 1.4 V, Bn = Float 3 0 0.5 3.5 µA RON Switch On Resistance(2) ISW = ±24 mA, VSW = -1.4 V to +1.4 V 0 0.8 Ω RFLAT(ON) On Resistance Flatness(2) ISW = ±24 mA, VSW = -1.4 V to +1.4 V 0 0.01 Ω ICC Quiescent Supply Current SEL0 = SEL1 = VCC 3 0 50 70 µA VIH Input Voltage High (Select Pins)(3) 3 0.8•VCC V VIL Input Voltage Low (Select Pins)(3) 3 0.2•VCC V IIN Input Leakage Current (Select Pins) 3 0 ±1 µA Notes: 2. Guaranteed by test and characterization. 3. Voltages on select control pins must be ≤ VCC. Typical values at TA = 25°C unless otherwise specified. Symbol Parameter Condition VCC (V) Typ. Unit tON Turn-On Time VCC to Output(4,5) RL = 32 Ω, CL = 10 pF, VSW = 1.4 V 1.6 120 ns tOFF Turn-Off Time VCC to Output(4,5) RL = 32 Ω, CL = 10 pF, VSW = 1.4 V 1.6 160 µs OIRR Off Isolation(4,5) RL = 32 Ω, f = 20 kHz, VSW = 0.35 VRMS 1.6 -90 dB XTALK Crosstalk(4,5) RL = 32 Ω, f = 20 kHz, VSW = 1 VRMS 0 -90 dB BW -3dB Bandwidth(5) RL = 50 Ω, CL = 0 pF 0 <50 MHz THD+N Total Harmonic Distortion + Noise(4,5) RL = 32 Ω, f = 20 Hz to 20 kHz, VSW = 1 VRMS 0 0.002 % Notes: 4. SEL0=SEL1=LOW. 5. Guaranteed by characterization. Capacitance TA = 25°C unless otherwise noted. Symbol Parameter Condition Typ. Unit CON On Capacitance (Switch Conducting) VCC = 0 V, f = 1 MHz, 400 mVPP 10 pF COFF Off Capacitance (Switch Isolated) VCC = 1.6 V, f = 1 MHz, 400 mVPP 10
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA550 • Rev. 1.0.1 5 FSA550 — 4PST Depletion Mode Isolation Switch Product-Specific Dimensions E D X Y 1.16 mm 1.56 mm 0.18 mm 0.18 mm
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