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ADP1074ARWZ-R7 数据表(PDF) 5 Page - Analog Devices

部件名 ADP1074ARWZ-R7
功能描述  Isolated, Synchronous Forward Controller with Active Clamp and iCoupler
PDF  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP1074ARWZ-R7 数据表(HTML) 5 Page - Analog Devices

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Data Sheet
ADP1074
Rev. D | Page 5 of 32
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
GATE DRIVERS (PRIMARY)
NGATE and PGATE High
Voltage
IVREG1 = 20 mA, VIN > 9 V
7.8
8
8.2
V
Gate Short-Circuit Peak
Current1
8 V on VREG1
1.0
A
Rise Time
10% to 90%
NGATE
CNGATE = 2.2 nF
18
ns
PGATE
CPGATE = 410 pF
8
ns
Fall Time
90% to 10%
NGATE
CNGATE = 2.2 nF
16
ns
PGATE
CPGATE = 410 pF
7
ns
Source Resistance
RON_SOURCE
Source 100 mA
NGATE
4
Ω
PGATE
6.5
Ω
Sink Resistance
RON_SINK
Sink 100 mA
NGATE
3
Ω
PGATE
3.5
Ω
NGATE Maximum Duty Cycle
DMAX
Divider bottom resistor (RBOT) = 0 Ω
45
50
55
%
Divider top resistor (RTOP) = RBOT,
1% resistors
75
%
NGATE Minimum On Time
Includes propagation delay and CS
comparator blanking time
170
ns
SRx DRIVERS (SECONDARY)
SR1 and SR2 High Voltage
IVREG2 = 15 mA, VDD2 > 5.5 V
4.9
5
5.1
V
Gate Short-Circuit Peak
Current1
5 V on VREG2
1.0
A
SRx Time
CSRx = 2.2 nF
Rise
10% to 90%
14
ns
Fall
90% to 10%
11
ns
Minimum On
Includes blanking time
230
ns
SRx Resistance
Source
RON_SR_SOURCE
Source 100 mA
3.5
Ω
Sink
RON_SR_SINK
Sink 100 mA
2
Ω
DELAYS
 
Gate Delay (SR1 Rising to
NGATE Rising)
35
ns
Delay Between NGATE Falling
Edge and SR1 Falling Edge
iCoupler
delay
21
ns
SR DEAD TIME (PGATE RISING
TO SR2 FALLING)
Resistor (±5%) at NGATE
Dead time resistor (RDT) = 10 kΩ
154
ns
RDT = 22 kΩ
109
ns
RDT = 47 kΩ
72
ns
RDT is open
42
ns
SR1 and SR2 Dead Time
Dead time between SR1 and SR2
25
ns
CURRENT-LIMIT SENSE (PRIMARY)
CS Limit Threshold
VCS_LIM
Over current sense limit threshold
120
mV
CS Leading Edge Blanking Time
150
ns
Current Source di/dt for Slope
Compensation
Switching period (tS) = 1/fS
20
μA per tS



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