SI4779CY-T1 Vishay, SI4779CY-T1 Datasheet - Page 3

• Manufacturer Part Number: SI4779CY-T1
• Manufacturer: Vishay

Specifications of SI4779CY-T1

• 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

Notes:
a. Typical values at T
b. Guaranteed by design. Derived from I
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.
TIMING DIAGRAMS
Document Number: 71664
S-60423–Rev. B, 20-Mar-06
SPECIFICATIONS
Parameter
Basic Operations
Operating Voltage
On-State Resistance
Supply Current
ON Input Low Voltage
ON Input High Voltage
ON Input Current
Protection
Over Current Limit Range
Under Voltage Lockout (rising edge)
Under Voltage Lockout (falling edge)
Under Voltage Hysteresis
FAULT Output Voltage Low
FAULT Logic Output Leakage Current
Dynamic
Turn-On Time
Rise Time
Turn-Off Time
Fall Time
Cycle Time
b
ON
OUT
t
on
50 %
A
= 25 °C are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
50 %
b
FIGURE 2.
b
OUT
ON
SET
current ratio, current-limit amplifier and external set resistor accuracy.
UVLO
UVLO
Symbol
I
I
ΔUVLO
V
r
SUP(off)
SUP(on)
V
I
DS(on)
V
LIMIT
FAULT
50 %
V
I
t
I
t
t
ONH
ONL
ON
cyc
FL
on
off
t
t
IN
r
f
rise
fall
t
50 %
off
ON = GND, V
Test Conditions Unless Specified
ON = IN, V
V
Tolerance = ± 20 %, V
IN
V
= 5 V, R
IN
T
V
V
V
V
V
V
V
A
IN
IN
IN
= 5 V, I
IN
IN
IN
IN
= 25 °C, V
IN
I
= 4.75 V, I
SINK
= 3.0 V, I
= 5 V, R
= V
V
= 2.7 V to 5.5 V
= 2.7 V to 3.6 V
= 4.5 V to 5.5 V
IN
= V
ON
L
= 5.5 V, V
FAULT
= 11 Ω, C
= 100 µA
OUT
OUT
= 5.5 V
OUT
ON
L
D
= 5.5 V, I
IN
= 500 mA
D
= 5.5 V
= 0.5 Ω
t
rise
= 2 A
= 2 A
10 %
= 5 V
OUT
L
IN
= 40 µF
= 5 V
= 0 V
OUT
= 0 V
90 %
FIGURE 3.
Min
2.7
2.0
2.4
0.4
2.0
2.0
ON
OUT
Vishay Siliconix
0.035
0.045
90 %
Limits
Typ
0.01
0.01
2.3
0.1
3.5
1.5
0.5
3
8
a
Si4779CY
0.045
0.055
www.vishay.com
Max
± 1
5.5
0.8
2.4
4.0
2.6
0.4
70
2
1
10 %
t
fall
Unit
µA
µA
ms
µA
µs
ms
V
Ω
V
A
V
3