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參數(shù)資料
| 型號： | LV8743V |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.8 A SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO44 |
| 封裝： | 0.275 INCH, SSOP-44 |
| 文件頁數(shù)： | 15/21頁 |
| 文件大?。?/td> | 268K |
| 代理商： | LV8743V |
LV8743V
No.A0612-3/21
Continued from preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
[Protection circuit block]
Comparator threshold voltage
VthFB
FB3, FB4
1.38
1.53
1.68
V
Standby voltage
VstSCP
ISCP = 40
A
100
mV
Source current
ISCP
VSCP = 0V
1.5
2.4
3.3
A
Threshold voltage
VthSCP
1.55
1.7
1.85
V
Latch voltage
VltSCP
ISCP = 40
A
100
mV
[Soft start circuit block]
Source current
ISOFT
VSOFT = 0V
1.15
1.45
1.75
A
Latch voltage
VltSOFT
ISOFT = 40
A
100
mV
[Low input voltage malfunction prevention circuit]
Threshold voltage
VUT
8.4
8.8
9.2
V
Hysteresis voltage
VHIS
240
340
440
mV
[Error amplifier block]
Input offset voltage
Vio
6
mV
Input offset current
Iio
30
nA
Input bias current
Iib
100
nA
Open-loop gain
AV
85
dB
Common-mode input voltage range
VCM
VM = 10 to 35V
3.0
V
Common-mode rejection ratio
CMRR
80
dB
Maximum output voltage
VOH
4.5
5.0
V
Minimum output voltage
VOL
0.2
0.5
V
Output sink current
Isi
FB = 2.5V
300
600
1000
A
Output source current
Iso
FB = 2.5V
45
75
105
A
[PWM comparator block]
VT100
Duty cycle = 100%
0.90
0.96
1.02
V
Input threshold voltage
(Fosc = 10kHz)
VT0
Duty cycle = 0%
0.45
0.48
0.51
V
Input bias current
IBDT
DT = 0.4V
1
A
Maximum duty cycle
Don
With the VREGS voltage divided by 17k
and 8k
resistors
57
67
77
%
[Output block]
Output on resistance
Ron
IO = 75mA
7
10
Leakage current
ILEAK
VO = 35V
5
A
Package Dimensions
unit : mm (typ)
3333
SANYO : SSOP44K(275mil)
15.0
7.
6
(3.
5)
(4.7)
5.
6
0.
5
0.22
0.2
0.65
(0.68)
0.
1
(1.
5)
1.
7MAX
TOP VIEW
SIDE VIEW
BOTTOM VIEW
122
23
44
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