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PDF LS4391 Data sheet ( Hoja de datos )
| Número de pieza | LS4391 | |
| Descripción | Switching | |
| Fabricantes | Micross | |
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LS4391
Single N-Channel JFET switch
Linear Systems replaces discontinued Siliconix 2N4391
The LS4391 features many of the superior
characteristics of JFETs which make it a good choice
FEATURES
DIRECT REPLACEMENT FOR SILICONIX 2N4391
for demanding analog switching applications and for
specialized amplifier circuits.
LOW ON RESISTANCE
LOW GATE OPERATING CURRENT
rDS(on) ≤ 30Ω
ID(off) = 5pA
LS4391 Benefits:
Low Error Voltage
High-Speed Analog Circuit Performance
FAST SWITCHING
t(ON) ≤= 15ns
ABSOLUTE MAXIMUM RATINGS1 @ 25°C (unless otherwise noted)
Maximum Temperatures
Negligible “Off-Error,” Excellent Accuracy
Good Frequency Response, Low Glitches
Eliminates Additional Buffering
Storage Temperature
Operating Junction Temperature
Maximum Power Dissipation
‐65°C to +200°C
‐55°C to +200°C
LS4391 Applications:
Analog Switches
Choppers, Sample-and-Hold
Continuous Power Dissipation
MAXIMUM CURRENT
Gate Current (Note 1)
350mW
IG = 50mA
Normally “On” Switches, Current Limiters
MAXIMUM VOLTAGES
Gate to Drain Voltage / Gate to Source Voltage
‐35V
LS4391 ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)
SYMBOL
CHARACTERISTIC
MIN TYP.
MAX
UNITS
CONDITIONS
BVGSS
VGS(off)
Gate to Source Breakdown Voltage ‐35
Gate to Source Cutoff Voltage
‐4
‐‐
‐‐
‐‐
‐10
V
IG = ‐1µA, VDS = 0V
VDS = 15V, ID = 10nA
VGS(F)
Gate to Source Forward Voltage
‐‐
0.7
1
IG = 1mA, VDS = 0V
VDS(on)
Drain to Source On Voltage
‐‐ 0.25
‐‐
VGS = 0V, ID = 3mA
VDS(on)
Drain to Source On Voltage
‐‐ 0.3
‐‐
VGS = 0V, ID = 6mA
VDS(on)
IDSS
Drain to Source On Voltage
‐‐
Drain to Source Saturation Current2 50
0.35
‐‐
0.4
‐‐
mA
VGS = 0V, ID = 12mA
VDS = 20V, VGS = 0V
IGSS
Gate Reverse Current
‐‐ ‐5 ‐100
IG
Gate Operating Current
‐‐ ‐5
‐‐
pA
VGS = ‐20V, VDS = 0V
VDG = 15V, ID = 10mA
ID(off)
Drain Cutoff Current
‐‐ 5 100
VDS = 10V, VGS = ‐10V
rDS(on)
Drain to Source On Resistance
‐‐
‐‐
30
LS4391 DYNAMIC ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)
SYMBOL
CHARACTERISTIC
TYP MIN MAX
Click To Buygfs
Forward Transconductance
6 ‐‐
‐‐
Ω
UNITS
mS
VGS = 0V, ID = 1mA
CONDITIONS
VDS = 20V, ID = 1mA, f = 1kHz
gos
Output Conductance
25 ‐‐
‐‐
µS
VDS = 20V, ID = 1mA, f = 1kHz
rds(on)
Drain to Source On Resistance
‐‐
‐‐
30
Ω
VGS = 0V, ID = 0A, f = 1kHz
Ciss
Input Capacitance
13 ‐‐
‐‐
Crss
3.6 ‐‐
‐‐
Crss
Reverse Transfer Capacitance
3.5
‐‐
‐‐
pF
VDS = 20V, VGS = 0V, f = 1MHz
VDS = 0V, VGS = ‐5V, f = 1MHz
VDS = 0V, VGS = ‐7V, f = 1MHz
Crss
3.1 ‐‐
‐‐
VDS = 0V, VGS = ‐12V, f = 1MHz
en
Equivalent Input Noise Voltage
3
‐‐
‐‐
nV/√Hz
VDS = 10V, ID = 10mA, f = 1kHz
LS4391 SWITCHING ELECTRICAL CHARACTERISTICS @ 25°C (unless otherwise noted)
SYMBOL
CHARACTERISTIC
TYP MIN MAX
UNITS
CONDITIONS
td(on)
tr
Turn On Time
2 ‐‐
2 ‐‐
‐‐
‐‐
td(off)
tf
Turn Off Time
6 ‐‐
13 ‐‐
‐‐
‐‐
Notes: 1. Absolute ratings are limiting values above which serviceability may be impaired
2. Pulse test: PW ≤ 300µs, Duty Cycle ≤ 3%
ns
VDD = 10V, VGS(H) = 0V
LS4391 SWITCHING CIRCUIT PARAMETERS SWITCHING CIRCUIT
VGS(L)
‐12V
SOT-23 (Top View)
RL
800Ω
ID(on)
12mA
Availab le Packages:
LS439 1 in SOT-23
LS439 1 in bare die.
Contac t Micross for fu ll package and die dimensions
Micross Components Europe
Tel: +44 1603 788967
Email: [email protected]
Web: http://www.micross.com/distribution
Information furnished by Linear Integrated Systems and Micross Components is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or
other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems.
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