參數(shù)資料
型號： FA3686V
廠商： FUJI ELECTRIC CO LTD
元件分類： 穩(wěn)壓器
英文描述： 0.4 A DUAL SWITCHING CONTROLLER, 1500 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 1.10 MM HEIGHT, TSSOP-16
文件頁數(shù)： 12/18頁
文件大?。?/td> 389K
代理商： FA3686V
FA3686V
3
Error amplifier section (IN1–, FB1, IN2–, FB2, IN3–, FB3 pin)
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Reference voltage (CH.1)
VREF1
*1
0.99
1.00
1.01
V
Reference voltage (CH.2)
VREF2
*2
0.98
1.00
1.02
V
Reference voltage (CH.3)
VREF3
*3
0.98
1.00
1.02
V
VREF
Line regulation
VREF_LINE
VCC=2.5 to 18V
±2
±5
mV
VREF
Variation with temperature
VREF_TC1
Ta=–30 to +85C
±0.5
%
Input bias current
IIN–
VINx–=0.0 to 2.5V *4
0.0
mA
Open loop gain
AVO
70
dB
Unity gain bandwidth
fT
1.5
MHz
Output current (sink)
ISIFB
VFBx=0.5V, VINx–=VREG *4
2.3
3.5
4.7
mA
Output current (source)
ISOFB
VFBx=VREG–0.5V, VINx–=0V *4
–360
–270
–180
A
*1 The FB1 voltage is measured under the condition that IN1- pin and FB1 pin are shorted. The input offset voltage of the error amplifier is included.
*2 The FB2 voltage is measured under the condition that IN2- pin and FB2 pin are shorted. The input offset voltage of the error amplifier is included.
*3 The FB3 voltage is measured under the condition that IN3- pin and FB3 pin are shorted. The input offset voltage of the error amplifier is included.
*4 The “x” of INx- and FBx refers to 1 to 3.
Soft start section (CS1, CS2 pin)
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Threshold voltage (CS1)
VCS1D0
Duty cycle=0%, VFB1=1.4V
0.82
V
VCS1D20
Duty cycle=20%, VFB1=1.4V
0.89
0.925
0.96
V
VCS1D80
Duty cycle=80%, VFB1=1.4V
1.25
1.285
1.32
V
Threshold voltage (CS2)
VCS2D0
Duty cycle=0%, VFB2=0.7V
1.33
V
VCS2D20
Duty cycle=20%, VFB2=0.7V
1.20
1.235
1.27
V
VCS2D80
Duty cycle=80%, VFB2=0.7V
0.84
0.875
0.91
V
Charge current of CS2 (source)
ICS1
VCS1=0.5V
–2.
–2.0
–1.5
A
Charge current of CS2 (sink)
ICS2
VCS2=VREG–0.5V
1.5
2.0
2.4
A
Pulse width modulation (PWM) section (FB1, FB2 pin)
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Max. duty cycle of OUT1
DMAX1
fOSC=300kHz
87
%
RT=12k
(fOSC 500kHz)
80
85
90
%
fOSC=1.5MHz
78
%
Max. duty cycle of OUT2
DMAX2
fOSC=300kHz
88
%
RT=12k (f OSC 500kHz)
80
85
90
%
fOSC=1.5MHz
73
%
Threshold voltage of FB1
VFB1D0
Duty cycle=0%
0.82
V
VFB1D20
Duty cycle=20%
0.925
V
VFB1D80
Duty cycle=80%
1.285
V
Threshold voltage of FB2
VFB2D0
Duty cycle=0%
1.33
V
VFB2D20
Duty cycle=20%
1.235
V
VFB2D80
Duty cycle=80%
0.875
V
Oscillator section (RT pin)
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Oscillation frequency
fOSC
435
500
565
kHz
Line regulation
fOSC_LINE
VCC=2.5 to 18V
±1
±5
%
Variation with temperature
fOSC_TC1
Ta=–30 to +85C±3
%
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