SI4779CY Datasheet, PDF (4/8 Pages) Vishay Siliconix – High-Side N-Channel Switch with Current Limit

Si4779CY
Vishay Siliconix
TIMING DIAGRAMS
New Product
ON
V_RSET
I_LIMIT
t_cyc
FIGURE 3.
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
R_SET vs. I_LIMIT
2.5
2.0
V_IN = 5 V
1.5
1.0
0.5
R_SET value is measured in circuit
0.0
200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900
R_SET (W)
Supply Current, Output Disalble vs.
Ambient Temperature Over Operating Voltage
1000
V_IN = 5.5 V
100
Normalized On-Resistance
vs. Ambient Temperature
1.4
1.2
1.0
0.8
10
0.6
1
–40 –20 0
20 40 60 80 100
T_A – Ambient Temperature (_C)
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4
0.4
–40 –25 –10 5
20 35 50 65 80 95
T_A – Ambient Temperature (_C)
Document Number: 71664
S-04276—Rev. A, 16-Jul-01