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AP3785T データシート(PDF) 6 Page - Diodes Incorporated

部品番号 AP3785T
部品情報  PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER
PDF  18 Pages
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メーカー  DIODES [Diodes Incorporated]
ホームページ  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP3785T データシート(HTML) 6 Page - Diodes Incorporated

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AP3785T
Document number: DS37552 Rev. 4 - 2
6 of 18
www.diodes.com
September 2015
© Diodes Incorporated
AP3785T
Electrical Characteristics (Cont.) (@V
CC=15V, TA=+25°
C, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
OPERATING FREQUENCY SECTION (NL MODE TO FULL LOAD)
fS(MAX)
The Maximum Operating Frequency
100% full load
–
–
80
kHz
tsample_H
Sample Time
40% to 100% full load
4.8
5.2
5.7
s
tsample_L
NL Mode to 8% full load
2.4
2.7
3.0
s
OPERATING FREQUENCY SECTION (NL MODE)
VCBC(EN)
CBC Pin Voltage to Enter NL Mode
–
55
60
65
mV
tOFF(EN)
Off Time to Enter NL Mode
From the end of tONS
168
224
280
s
tOFF(EX)
Off Time to Exit NL Mode
From the end of tONS
168
224
280
s
FREQUENCY JITTER
ΔV
CS/VCS
VCS Modulation
NL to full load
4.5
5
5.5
%
fMOD
VCS Modulation Frequency
1.8
2
2.2
kHz
CURRENT SENSE SECTION
VCS_H
Peak Current Sense Threshold
Voltage
40% to 100% full load
537
565
593
mV
VCS_L
0% to 8% full load
243
255
267
mV
RLINE
Built-in Line Compensation Resistor
(Note 8)
108
120
132

tLEB
Leading Edge Blanking
–
400
625
850
ns
CONSTANT VOLTAGE SECTION
VFB
Feedback Threshold Voltage
Closed loop test of VOUT
2.45
2.50
2.55
V
VCBC(MAX)
Maximum CBC Voltage for Cable
Compensation
–
1.4
1.45
1.5
V
CONSTANT CURRENT SECTION
tONS/tSW
Secondary Winding Conduction
Duty
Tested @ VFB=2V
–
4/8
–
–
VALLEY-ON SECTION
tVAL-ON
Valid Off Time of Valley-on
From the end of tONS
20
27
34
s
DYNAMIC SECTION
VTRIGGER
Trigger Voltage for Dynamic
Function
–
40
62.5
85
mV
tDELAY
Delay Time for Dynamic
Function
From the end of tONS
99
127
155
s
VUV_H
Under Voltage of FB Pin for VCS_H
–
2.23
2.27
2.32
V
PROTECTION FUNCTION SECTION
VFB(OVP)
Over Voltage Protection at FB Pin
–
3.5
3.75
4
V
VCC(OVP)
Over Voltage Protection at VCC Pin
–
27
28.5
30
V
tONP(MAX)
Maximum Turn-on Time
–
14
18
22
s
tOFF(MAX)
Maximum Off Time
–
11
14
17
ms



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