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APR343 数据表(PDF) 4 Page - Diodes Incorporated

部件名 APR343
功能描述  SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER
PDF  12 Pages
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制造商  DIODES [Diodes Incorporated]
网页  http://www.diodes.com
标志 DIODES - Diodes Incorporated

APR343 数据表(HTML) 4 Page - Diodes Incorporated

  APR343 Datasheet HTML 1Page - Diodes Incorporated APR343 Datasheet HTML 2Page - Diodes Incorporated APR343 Datasheet HTML 3Page - Diodes Incorporated APR343 Datasheet HTML 4Page - Diodes Incorporated APR343 Datasheet HTML 5Page - Diodes Incorporated APR343 Datasheet HTML 6Page - Diodes Incorporated APR343 Datasheet HTML 7Page - Diodes Incorporated APR343 Datasheet HTML 8Page - Diodes Incorporated APR343 Datasheet HTML 9Page - Diodes Incorporated Next Button
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APR343
Document number: DS36884 Rev. 4 - 2
4 of 12
www.diodes.com
December 2014
© Diodes Incorporated
APR343
A Product Line of
Diodes Incorporated
Electrical Characteristics (@VCC = 5V, TA = +25C, unless otherwise specified.)
Symbol
Parameters
Conditions
Min
Typ
Max
Unit
Supply Voltage ( VCC Pin )
ISTARTUP
Startup Current
VCC = VSTARTUP-0.1V
–
100
150
µA
IOP
Operating Current
VDET pin floating
VCC = VTRIGGER+20mV
40
100
150
µA
VSTARTUP
Startup Voltage
–
2.6
3.1
3.4
V
–
UVLO
–
2.3
2.8
3.1
V
Dynamic Output Section/Oscillator Section
VTRIGGER
Internal Trigger Voltage
–
5.25
5.3
5.35
V
–
Duty Cycle
–
4
8
12
%
tOSC
Oscillation Period
VCC = 5V
18
30
37.5
µs
ITRIGGER
Internal Trigger Current
VCC = VTRIGGER, VCC/VDET pin
is separately connected to a 20
Ω
resistor
30
–
42
mA
tDIS
Minimum Period
–
18
30
37.5
ms
VDIS
Discharge Voltage
–
5.28
5.44
5.52
V
IDIS
Discharge Current
VCC = VDIS+0.1V
1.5
3
4.5
mA
VDIS-VTRIGGER
Trigger Discharger Gap
–
30
110
–
mV
VOVP
Overshoot Voltage for Discharge
–
5.8
5.9
6.0
V
IOVP
Overshoot Current for Discharge
VCC = VOVP+0.1V, VCC pin is
connected to a 20
Ω resistor
40
–
100
mA
Synchronous Rectification Detection and Drive
VTHON
Gate Turn On Threshold
–
0
–
1
V
VTHOFF
Gate Turn Off Threshold
–
-20
-12.5
-5
mV
tDON
Turn On Delay Time
From VTHON to VDRISR = 1V
–
70
130
ns
tDOFF
Turn Off Propagation Delay Time
From VTHOFF to VDRISR = 3V
–
100
150
ns
tRG
Turn On Rising Time
From 1V to 3V, CL = 4.7nF
–
50
100
ns
tFG
Turn Off Falling Time
From 3V to 1V, CL = 4.7nF
–
50
100
ns
tLEB_S
Minimum On Time
(VDET-VCC)*tONP = 25Vµs
0.9
1.8
2.7
µs
tLEB_L
(VDET-VCC)*tONP = 50Vµs
–
–
6.5
VDRISR_HIGH
Drive Output Voltage
VCC = 5V
3.7
–
–
V
VS_MIN
Synchronous Rectification (SR)
Minimum Operating Voltage (Note 5)
–
–
–
4.5
V
tOVP_LAST
Added OVP Discharge Time
–
–
2.0
–
ms
Kqs
(Note 6)
(VDET-VCC)*tONP = 25Vµs
0.325
–
0.625
mA*µs
Notes:
5. This item specifies the minimum SR operating voltage of VIN_DC, VIN_DC≥NPS*VS_MIN.
6. This item is used to specify the value of RAREF.



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