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ADuM4472CRIZ PDF预览

ADuM4472CRIZ

更新时间: 2024-10-28 12:26:03
品牌 Logo 应用领域
亚德诺 - ADI 稳压器开关
页数 文件大小 规格书
36页 750K
描述
Isolated Switching Regulator with Quad-Channel Isolators

ADuM4472CRIZ 数据手册

 浏览型号ADuM4472CRIZ的Datasheet PDF文件第7页浏览型号ADuM4472CRIZ的Datasheet PDF文件第8页浏览型号ADuM4472CRIZ的Datasheet PDF文件第9页浏览型号ADuM4472CRIZ的Datasheet PDF文件第11页浏览型号ADuM4472CRIZ的Datasheet PDF文件第12页浏览型号ADuM4472CRIZ的Datasheet PDF文件第13页 
ADuM4470/ADuM4471/ADuM4472/ADuM4473/ADuM4474  
Data Sheet  
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 49. 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. DC-to-DC Converter Static Specifications  
Parameter  
Symbol  
Min  
Typ  
Max  
Unit  
Test Conditions/Comments  
DC-TO-DC CONVERTER SUPPLY  
Isolated Output Voltage  
VISO  
VFB  
13.8  
1.15  
15  
16.2  
1.37  
V
V
IISO = 0 mA,  
VISO = VFB × (R1 + R2)/R2  
IISO = 0 mA  
Feedback Voltage Setpoint  
VDD2 Linear Regulator  
Regulator Voltage  
1.25  
4.5  
5.0  
5.5  
V
VREG = 7 V to 15 V,  
IDD2 = 0 mA to 50 mA  
Dropout Voltage  
Line Regulation  
0.5  
1
1.5  
20  
IDD2 = 50 mA  
VISO (LINE)  
mV/V  
IISO = 50 mA,  
VDD1 1 = VDDA2 = 4.5 V to 5.5 V  
Load Regulation  
Output Ripple  
VISO (LOAD)  
VISO (RIP)  
1
200  
3
%
mV p-p  
IISO = 20 mA to 80 mA  
20 MHz bandwidth,  
COUT = 0.1 µF||47 µF, IISO = 100 mA  
Output Noise  
VISO (NOISE)  
fSW  
500  
mV p-p  
20 MHz bandwidth,  
COUT = 0.1 µF||47 µF, IISO = 100 mA  
ROC = 50 kΩ  
ROC = 270 kΩ  
Switching Frequency  
1000  
200  
318  
0.5  
kHz  
kHz  
kHz  
Ω
192  
100  
515  
VOC = VDD2 (open-loop)  
Switch On-Resistance  
Undervoltage Lockout, VDDA, VDD2 Supplies  
Positive Going Threshold  
Negative Going Threshold  
Hysteresis  
DC to 2 Mbps Data Rate3  
Maximum Output Supply Current4  
Efficiency at Maximum Output Current5  
iCoupler DATA CHANNELS  
DC to 2 Mbps Data Rate  
IDD1 Supply Current, No VISO Load  
ADuM4470  
RON  
VUV+  
VUV−  
VUVH  
2.8  
2.6  
0.2  
V
V
V
IISO (MAX)  
mA  
%
f 1 MHz, VISO = 5.0 V  
IISO = IISO (MAX), f 1 MHz  
78  
IDD1 (Q)  
IISO = 0 mA, f 1 MHz  
25  
27  
29  
31  
33  
45  
45  
45  
45  
45  
mA  
mA  
mA  
mA  
mA  
ADuM4471  
ADuM4472  
ADuM4473  
ADuM4474  
25 Mbps Data Rate (CRIZ Grade Only)  
IDD1 Supply Current, No VISO Load  
ADuM4470  
IDD1 (D)  
73  
83  
93  
102  
112  
mA  
mA  
mA  
mA  
mA  
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz  
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz  
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz  
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz  
IISO = 0 mA, CL = 15 pF, f = 12.5 MHz  
fSW = 500 kHz  
CL = 15 pF, f = 12.5 MHz  
CL = 15 pF, f = 12.5 MHz  
CL = 15 pF, f = 12.5 MHz  
CL = 15 pF, f = 12.5 MHz  
ADuM4471  
ADuM4472  
ADuM4473  
ADuM4474  
Available VISO Supply Current6  
ADuM4470  
ADuM4471  
ADuM4472  
IISO (LOAD)  
91  
89  
86  
83  
80  
425  
mA  
mA  
mA  
mA  
mA  
mA  
ADuM4473  
ADuM4474  
IDD1 Supply Current, Full VISO Load  
CL = 15 pF, f = 12.5 MHz  
CL = 0 pF, f = 0 MHz, VDD1 = VDDA  
5 V, IISO = 400 mA  
=
Rev. 0 | Page 10 of 36  
 

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