© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA4157 • FSA4157A Rev. 1.0.7 3
FSA4157, FSA4157A — Low-Voltage, 1Ω SPDT Analog Switch
Absolute Maximum Ratings
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.
Symbol Parameter Min. Max. Unit
VCC Supply Voltage -0.5 6.0 V
VS DC Switch Voltage(1) -0.5 VCC + 0.5 V
VIN DC Input Voltage(1) -0.5 6.0 V
IIK DC Input Diode Current -50 mA
ISW Switch Current 200 mA
ISWPEAK Peak Switch Current (Pulse at 1ms duration, <10% Duty Cycle) 400 mA
PD Power Dissipation at 85°C SC70
180 mW
MicroPak™
TSTG Storage Temperature Range -65 +150 °C
TJ Maximum Junction Temperature +150 °C
TL Lead Temperature (Soldering, 10 seconds) +260 °C
ESD Electrostatic Discharge Capability Human Body Model,
JESD22-A114 (FSA4157A) 7500 V
Note:
1. Input and output negative ratings may be exceeded if input and output diode current ratings are observed.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol Parameter Min. Max. Unit
VCC Supply Voltage FSA4157 1.65 5.50
V
FSA4157A 2.7 5.5
VCNTRL Control Input Voltage(2) 0 VCC V
VSW Switch Input Voltage 0 VCC V
TA Operating Temperature -40 +85 °C
θJA Thermal Resistance in Still Air SC70 350
°C/W
MicroPak™ (Estimated) 330
Note:
2. Control input must be held HIGH or LOW and it must not float.