SI4779CY Vishay, SI4779CY Datasheet - Page 2

• Manufacturer Part Number: SI4779CY
• Manufacturer: Vishay

Specifications of SI4779CY

• Switch Type: High Side
• Power Switch Family: Si4779CY
• Input Voltage: 3 to 5V
• Power Switch On Resistance: 45mOhm
• Output Current: 2.4A
• Number Of Outputs: Single
• Mounting: Surface Mount
• Supply Current: 70uA
• Package Type: SOIC N
• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Pin Count: 8
• Power Dissipation: 650mW
• Lead Free Status / Rohs Status: Not Compliant

Si4779CY
Vishay Siliconix
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.
Notes:
a. Surface mounted on 1" x 1" 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
perature if power dissipation and the lead temperature of a heat carrying (drain) lead is known.
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2
ABSOLUTE MAXIMUM RATINGS T
Parameter
Voltage, IN to GND
Voltage, ON
Continuous Drain Current (T
Maximum Power Dissipation
Operating Junction and Storage Temperature Range
RECOMMENDED OPERATING CONDITIONS
Parameter
Voltage, IN to GND
Voltage, ON or FAULT to GND
Operating Temperature Range
THERMAL RESISTANCE RATINGS
Parameter
Junction-to-Ambient
Junction-to-Foot (Drain)
a
b
J
a
= 150 °C)
a
A
= 25 °C, unless otherwise noted
Steady State
T
T
T
A
A
A
= 25 °C
= 85 °C
= 70 °C
thJA
Symbol
R
R
= R
thJA
thJF
Symbol
V
T
thJF
J
ON
V
Symbol
V
P
, T
I
ON
D
IN
D
, V
V
T
stg
+ R
IN
A
FAULT
thPCB-A
Typical
98
37
). It can also be used to estimate chip tem-
3.0 to 5.0
Typical
0 to 5.0
0 to 85
- 65 to 125
- 0.3 to 7
- 0.3 to 7
Limit
0.65
Maximum
2.4
2.4
S-60423–Rev. B, 20-Mar-06
120
46
Document Number: 71664
Unit
°C
V
°C/W
Unit
Unit
°C
W
V
A