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62383CHRTZ Просмотр технического описания (PDF) - Intersil

Номер в каталогеКомпоненты Описаниепроизводитель
62383CHRTZ High-Efficiency, Quad or Triple-Output System Power Supply Controller for Notebook Computers Intersil
Intersil Intersil
62383CHRTZ Datasheet PDF : 23 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C, ISL62383C
Pin Descriptions (Continued)
PIN NUMBER
28 LD
28
32 LD
32
NAME
FUNCTION
FB2 SMPS2 feedback input used for output voltage programming and regulation.
Bottom Bottom
Pad
Pad
GND Analog ground of the IC. Unless otherwise stated, signals are reference to this GND.
Typical Performance
100
VIN = 7V
95
90
85
VIN = 12V
80
VIN = 19V
75
70
65
60
55
50
0.10
1.00
10.00
IOUT (A)
FIGURE 5. CHANNEL 1 EFFICIENCY AT VO = 3.3V, DEM
OPERATION. HIGH-SIDE 1xIRF7821,
rDS(ON) = 9.1m; LOW-SIDE 1xIRF7832,
rDS(ON) = 4m; L = 4.7µH, DCR = 14.3m; CCM
FSW = 270kHz
100
95
VIN = 7V
90
85
VIN = 12V
80
VIN = 19V
75
70
65
60
55
50
0.01
0.10
1.00
10.00
IOUT (A)
FIGURE 6. CHANNEL 2 EFFICIENCY AT VO = 5V, DEM
OPERATION. HIGH-SIDE 1xIRF7821,
rDS(ON) = 9.1m; LOW-SIDE 1xIRF7832,
rDS(ON) = 4m; L = 4.7µH, DCR = 14.3m; CCM
FSW = 330kHz
VO1
FB1
PGOOD1
PHASE1
FIGURE 7. POWER-ON, VIN = 12V, LOAD = 5A, VO = 3.3V
VO1
FB1
PGOOD1
PHASE1
FIGURE 8. POWER-OFF, VIN = 12V, IO = 5A, VO = 3.3V
9
FN6665.5
May 13, 2011
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