SI4779CY Datasheet, PDF (2/8 Pages) Vishay Siliconix – High-Side N-Channel Switch with Current Limit

Si4779CY
Vishay Siliconix
New Product
ABSOLUTE MAXIMUM RATINGS (T_A = 25_C UNLESS OTHERWISE NOTED)
Parameter
Symbol
Steady State
Voltage, IN to GND
Voltage, ON
Continuous Drain Current (T_J = 150rC)^a
Maximum Power Dissipation^a
Operating Junction and Storage Temperature Range
T_A = 25rC
T_A = 85rC
T_A = 70rC
V_IN
V_ON
I_D
P_D
T_j, T_stg
–0.3 to 7
–0.3 to 7
2.4
2.4
0.65
–65 to 125
Unit
V
A
W
_C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Parameter
Voltage, IN to GND
Voltage, ON or FAULT to GND
Operating Temperature Range
Symbol
V_IN
V_ON, V_FAULT
T_A
Steady State
3.0 to 5.0
0 to 5.0
0 to 85
Unit
V
_C
THERMAL RESISTANCE RATINGS
Parameter
Symbol
Typical
Maximum
Unit
Junction-to-Ambient^a
Junction-to-Foot (Drain)^b
R_thJA
98
Steady State
R_thJF
37
120
_C/W
46
Notes
a. Surface mounted on 1” x1” FR4 board, 0.062” thick, 2-oz copper double sided.
b. Junction-to-foot thermal impedance represents the effective thermal impedance of all heat carrying leads in parallel and is intended for use in conjunction with
the thermal impedance of the PC board pads to ambient (R_thJA = R_thJF + R_thPCB-A). It can also be used to estimate chip temperature if power dissipation and
the lead temperature of a heat carrying (drain) lead is known.
www.vishay.com
2
Document Number: 71664
S-04276—Rev. A, 16-Jul-01