SI4779CY-E3 Vishay, SI4779CY-E3 Datasheet - Page 7

• Manufacturer Part Number: SI4779CY-E3
• Manufacturer: Vishay

Specifications of SI4779CY-E3

• 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: Compliant

PIN CONFIGURATION
DETAILED BLOCK DIAGRAM
Document Number: 71664
S-60423–Rev. B, 20-Mar-06
R
SET
Ordering Information: Si4779CY-T1
SET
ON
IN
IN
ON
ET
IN
IN
1
2
3
4
1
2
3
4
Si4779CY-T1-E3 (Lead (Pb)-free)
UVLO
Si4779CY
Top View
SO-8
QB
S
D
8
7
6
5
CP
OUT
OUT
FAULT
GND
Q
R
FIGURE 16.
+
–
+
–
PIN DESCRIPTION
Pin
1, 2
3
4
5
6
7, 8
Symbol
FAULT
GND
OUT
SET
ON
EA
IN
–
BG
Input. N-channel MOSFET drain, bypass IN with a
100 µF capacitor to GND.
Active-low switch-on input, logic low turns switch
on. ON needs to be connected to V
up, then connect to GND to activate the switch
after power up.
Current-limit input. A resistor from SET to GND
sets the current limit for the switch.
Ground
Fault indicator output. This open drain output goes
low when the circuit is in current limit or in short
circuit protection mode.
Switch output. N-channel MOSFET source.
Description
Vishay Siliconix
8
7
6
5
Si4779CY
www.vishay.com
IN
during power
OUT
OUT
FAULT
GND
7