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ADP1071-1ARWZ-R7 Datenblatt(PDF) 4 Page - Analog Devices

Teilenummer ADP1071-1ARWZ-R7
Bauteilbeschribung  Isolated Synchronous Flyback Controller
PDF  27 Pages
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1071-1ARWZ-R7 Datenblatt(HTML) 4 Page - Analog Devices

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ADP1071-1/ADP1071-2
Data Sheet
Rev. B | Page 4 of 27
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
SUPPLY (SECONDARY)
Supply Voltage
VDD2
4.7 µF capacitor from VDD2 to AGND2, 1 µF
capacitor from VREG2 to AGND2
4.5
12
36
V
Quiescent Supply
Current
IDD2
SR unloaded
At 100 kHz
5.3
mA
At 300 kHz
5.5
mA
At 600 kHz
5.6
mA
IDD2
SR loaded with 2.2 nF
At 100 kHz
6.4
mA
At 300 kHz
8.7
mA
At 600 kHz
12.1
mA
VDD2 UVLO Threshold
VDD2 rising
3.55
V
VDD2 falling
3
V
UVLO Hysteresis
145
mV
Secondary UVLO
Hiccup Time
200
ms
OSCILLATOR
Switching Frequency
(fS)
RT resistance (RRT) = 480 kΩ (±1%)
50 − 10%
50
50 + 10%
kHz
RRT = 240 kΩ (±1%)
100 − 10%
100
100 + 10%
kHz
RRT = 120 kΩ (±1%)
200 − 10%
200
200 + 10%
kHz
RRT = 80 kΩ (±1%)
300 − 10%
300
300 + 10%
kHz
RRT = 60 kΩ (±1%)
400 − 10%
400
400 + 10%
kHz
RRT = 40 kΩ (±1%)
600 − 10%
600
600 + 10%
kHz
VREG1 PIN
VREG1 Voltage Clamp
VREG1 current (IVREG1) = 3 mA, VEN < 1.2 V
13.5
14.3
15.2
V
VREG1 Clamp Series
Resistance
VREG1 forced current of 5 mA and 10 mA
16
Ω
GATE DRIVERS (PRIMARY)
GATE High Voltage
IVREG1 = 20 mA, VIN > 9 V (ADP1071-2 only)
7.8
8
8.2
V
Gate Short-Circuit Peak
Current1
8 V on VREG1
1.0
A
GATE Rise Time
GATE loaded with 2.2 nF, 10% to 90%
17
ns
GATE Fall Time
GATE loaded with 2.2 nF, 90% to 10%
15
ns
GATE Source Resistance
RON_SOURCE
Source = 100 mA
4
Ω
GATE Sink Resistance
RON_SINK
Sink = 100 mA
2
Ω
GATE Maximum Duty
Cycle
84
%
GATE Minimum On
Time
At 300 kHz, includes blanking time
175
ns
SR DRIVER (SECONDARY)
SR High Voltage
IVREG2 = 15 mA, VDD2 > 5.5 V
4.9
5
5.1
V
SR Short Circuit Peak
Current1
5 V on VREG2
1.0
A
SR Rise Time
SR loaded with 2.2 nF, 10% to 90%
13
ns
SR Fall Time
SR loaded with 2.2 nF, 90% to 10%
10
ns
SR Minimum On Time
At 300 kHz
462
ns
SR Source Resistance
RON_SR_SOURCE
Source = 100 mA
3
Ω
SR Sink Resistance
RON_SR_SINK
Sink = 100 mA
1.5
Ω
DEAD TIME SETTING
(GATE TO SR)
Dead time between SR falling and GATE
rising
30
ns
Dead time between GATE falling and SR
rising
52
ns



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