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FAN5240QSC датащи(PDF) 5 Page - Fairchild Semiconductor

номер детали FAN5240QSC
подробное описание детали  Multi-Phase PWM Controller for AMD Mobile Athlon TM and Duron TM
Download  19 Pages
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производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN5240QSC датащи(HTML) 5 Page - Fairchild Semiconductor

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PRODUCT SPECIFICATION
FAN5240
REV. 1.1.7 8/29/02
5
Electrical Specifications
(VCC = 5V, VIN = 6V–24V, and TA = recommended operating ambient temperature range using circuit of Figure 1,
unless otherwise noted.)
Note 1: Guaranteed by slew rate testing.
Parameter
Conditions
Min.
Typ.
Max.
Units
Power Supplies
VCC Current
Operating, CL = 10pF
2
mA
Shut-down (EN=0)
1
10
µA
VIN Current
Operating
25
µA
Shut-down (EN=0)
1
µA
UVLO Threshold
Rising VCC
4.3
4.45
4.6
V
Falling VCC
3.8
3.95
4.10
V
Regulator / Control Functions
Output voltage
per Table 2
0.925
2.00
V
Error Amplifier Gain
86
dB
Error Amplifier GBW
2.7
MHz
Error Amplifier Slew Rate
1
V/
µS
VCORE+ Input Current
25
30
35
µA
ILIM Voltage
RILIM = 30K
0.89
0.91
V
ILIM THOLDOFF
CDELAY = 22nF
1.16
mS
Over-voltage Threshold
2.2
2.35
2.5
V
Over-voltage Protection delay
2
µS
EN, input threshold
Logic LOW
0.8
V
Logic HIGH
2
V
Phase to Phase current mismatch
IC contribution only
Guaranteed by design
±5
%
Over-Temperature Shut-down
150
°C
Over-Temperature Hysteresis
25
°C
Output Drivers (note 1)
HDRV Output Resistance
Sourcing
3.8
5
Sinking
1.6
3
LDRV Output Resistance
Sourcing
3.8
5
Sinking
0.8
1.5
Oscillator
Frequency
255
300
345
KHz
Ramp Amplitude, pk–pk
VIN = 16V
2
V
Ramp Offset
0.5
V
Ramp Gain
125
mV/V
Reference, DAC and Soft-Start
VID input threshold
Logic LOW
0.8
V
Logic HIGH
2.0
V
VID pull-up current
to VCC
1
µA
DAC output accuracy
–11
%
Soft Start Charging current (ISS)VSS < 90% of Programmed output
20
27
34
µA
VSS > 90% of Programmed output
350
500
650
µA
RampAmplitude
V
IN
----------------------------------------------


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