參數(shù)資料
型號(hào): FAN8048
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 運(yùn)動(dòng)控制電子
英文描述: 2 DC-DC Converter & 4-CH PWM Motor IC
中文描述: DISK DRIVE MOTOR CONTROLLER, 0.5 A, PDSO48
封裝: 7 X 7 MM, LQFP-48
文件頁(yè)數(shù): 7/34頁(yè)
文件大小: 903K
代理商: FAN8048
FAN8048
7
Electrical characteristics
(PVCC=VIN=2.4V, VSYS1=VSYS2=2.7V, VG=7.0V, DCIN=0V, C
PCT
=470pF, Ta=25
°
C,unless otherwise specifid)
Parameter
CURRENT
PVCC quiescent current
VIN operating current
DCIN operating current
VG operating current1
VG operating current2 (Note1)
VSYS1 operating current
VSYS2 operating current
SYNCHRONOUS DC-DC CONVERTER PART
VG CONVERTER PART
VG output voltage
VG converter start voltage
Oscillation frequency
STEP UP/DOWN CONVERTER (COMMON))
VSYS voltage at voltage up mode
VSYS Load Stability at voltage up
mode
VSYS voltage at voltage down mode
VSYS load stability at voltage down
mode
Symbol
Conditions
Min.
Typ. Max. Unit
I
PVCC
I
VIN
I
DCIN
I
VG
I
VG4CH
I
VSYS1
I
VSYS2
-
-
-
-
-
-
-
-
-
3.0
3.0
1.0
1.5
2.0
5.0
1.0
μ
A
mA
mA
mA
mA
mA
mA
VON = 0V
DCIN = 5V
Non driving 4 channels
Driving by 4 channels
1.6
-
1.0
1.5
3.0
-
V
VG
V
VGST
F
LG
IVG=1mA
VG=3
→ 5
V Sweep
VG=3.5V, VLG=5V
6.0
3.3
65
7.0
3.9
100
8.0
4.5
135
V
V
KHz
V
UP
VIN=2.0V, ISYS=100mA
2.58
2.7
2.82
V
V
UP
VIN=2.0V, ISYS=0 to 150mA
-30
1.0
30
mV
V
DOWN
VIN=3.0V, ISYS=100mA
2.58
2.7
2.82
V
V
DOWN
VIN=3.0V, ISYS=0 to 150mA
-30
1.0
30
mV
VSYS output stability at voltage up/down
V
UPDW
V
UPDW
=V
UP
-V
DOWN
-30
0
30
mV
ERROR AMPLIFIER
Error amplifier threshold voltage
Error amplifier output voltage
Error amplifier input current
Error amplifier source current
Error amplifier sink current
VSYS1 OPTION CIRCUIT
Error amplifier1 short circuit
detection voltage
SPRT input current1
SPRT input current2
V
EINTH
V
EOL
I
EIN
I
ESOURCE
I
ESINK
-
-
0.86
-
-1
150
1
0.9
0.16
0.1
-
-
0.94
0.2
1
-
-
V
V
μ
A
μ
A
mA
VEI=0.8V
VEO=0V, VEI=0V
-
V
eos
SPRT=L
H
1.20
1.35
1.45
V
I
sprt1
I
sprt2
VEI=0V, VSPRT=0V
OFF=VSPRT=0V
VPCT=0.3V, VEO=0.4V,VEI=0V,
DSW=H
L
VSOFT=0V
VSYS1=1.3
1.7V
VSPRT, VSOFT=L
H
-9
-16
-6
-12
-4
-8
μ
A
μ
A
SPRT threshold voltage
V
sprth
0.4
0.5
0.6
V
SOFT input current
I
soft
-13
-10
-7
μ
A
SPRT/SOFT discharge reset voltage
V
dis
1.30
1.48
1.62
V
Voltage in switching between the
starter and normal modes
Vstn hysterisis voltage (Note1)
V
stn
VSYS1=1.5
2.0 V,DSW=H
L
1.70
1.84
1.95
V
V
sthys
VSYS1=1.5
2.0 V
100
200
300
mV
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