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ADUM3472CRSZ Datasheet(PDF) 9 Page - Analog Devices

Part # ADUM3472CRSZ
Description  PWM Controller and Transformer Driver with Quad-Channel Isolators
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADUM3472CRSZ Datasheet(HTML) 9 Page - Analog Devices

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ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474
Rev. 0 | Page 9 of 32
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/15 V SECONDARY ISOLATED SUPPLY
4.5 V ≤ (VDD1 = VDDA) ≤ 5.5 V; VREG = VISO = 15 V; VDD2 = 5.0 V; fSW = 500 kHz; all voltages are relative to their respective grounds; see the
application schematic in Figure 39. All minimum/maximum specifications apply over the entire recommended operating range, unless
otherwise noted. All typical specifications are at TA = 25°C, VDD1 = VDDA = 5.0 V, VREG = VISO = 15 V, VDD2 = 5.0 V.
Table 4.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
DC-TO-DC CONVERTER POWER SUPPLY
Isolated Output Voltage
VISO
13.8
15
16.2
V
IISO = 0 mA, VISO = VFB × (R1 + R2)/R2
Feedback Voltage Setpoint
VFB
1.15
1.25
1.35
V
IISO = 0 mA
VDD2 Linear Regulator
Regulator Voltage
VDD2
4.6
5.0
5.4
V
VREG = 7 V to 15 V, IDD2 = 0 mA to 50 mA
Dropout Voltage
VDD2DO
0.5
1.5
V
IDD2 = 50 mA
Line Regulation
VISO (LINE)
1
10
mV/V
IISO = 50 mA, VCC = 4.5 V to 5.5 V
Load Regulation
VISO (LOAD)
1
3
%
IISO = 20 mA to 100 mA
Output Ripple
VISO (RIP)
200
mV p-p
20 MHz bandwidth,
COUT = 0.1 μF||47 μF, IISO = 100 mA
Output Noise
VISO (N)
500
mV p-p
20 MHz bandwidth,
COUT = 0.1 μF||47 μF, IISO = 100 mA
Switching Frequency
fSW
1000
kHz
ROC = 50 kΩ
200
kHz
ROC = 270 kΩ
192
318
515
kHz
VOC = VDD2 (open loop)
Switch On-Resistance
RON
0.5
Ω
Undervoltage Lockout, VCC,VDD2 Supplies
Positive Going Threshold
VUV+
2.8
V
Negative Going Threshold
VUV−
2.6
V
Hysteresis
VUVH
0.2
V
iCoupler DATA CHANNELS
DC to 2 Mbps Data Rate1
Maximum Output Supply Current2
IISO (MAX)
100
mA
f ≤ 1 MHz, VISO = 5.0 V
Efficiency at Maximum Output
Supply Current3
70
%
IISO = IISO (MAX), f ≤ 1 MHz
ICC Supply Current, No VISO Load
ICC (Q)
IISO = 0 mA, f ≤ 1 MHz
ADuM3470
25
45
mA
ADuM3471
27
45
mA
ADuM3472
29
45
mA
ADuM3473
31
45
mA
ADuM3474
33
45
mA
25 Mbps Data Rate (CRWZ Grade Only)
ICC Supply Current, No VISO Load
ICC(D)
ADuM3470
73
mA
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz
ADuM3471
83
mA
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz
ADuM3472
93
mA
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz
ADuM3473
102
mA
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz
ADuM3474
112
mA
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz
Available VISO Supply Current4
IISO (LOAD)
ADuM3470
91
mA
CL = 15 pF, f = 12.5 MHz
ADuM3471
89
mA
CL = 15 pF, f = 12.5 MHz
ADuM3472
86
mA
CL = 15 pF, f = 12.5 MHz
ADuM3473
83
mA
CL = 15 pF, f = 12.5 MHz
ADuM3474
80
mA
CL = 15 pF, f = 12.5 MHz
ICC Supply Current, Full VISO Load
ICC (MAX)
425
mA
CL = 0 pF, f = 0 MHz, VDD = 5 V,
IISO = 100 mA
I/O Input Currents
IIA, IIB, IIC, IID
−20
+0.01
+20
μA
Logic High Input Threshold
VIH
2.0
V
Logic Low Input Threshold
VIL
0.8
V


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