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参数资料
| 型号： | ADUM3070ARQZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | IC REG PUSH-PLL CTRLR ISO 16SSOP |
| 标准包装： | 1,000 |
| 类型： | 推挽式控制器，隔离式 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 3.3 V ~ 24 V |
| 输入电压： | 3V，5V |
| 频率 - 开关： | 200kHz ~ 1MHz |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-QSOP |
ADuM3070
Data Sheet
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
4.5 V ≤ V DD1 = V DDA ≤ 5.5 V, V DD2 = V REG = V ISO = 3.3 V, f SW = 500 kHz, all voltages are relative to their respective grounds, see the application
schematic in Figure 31. All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All
typical specifications are at T A = 25°C, V DD1 = V DDA = 5.0 V, V DD2 = V REG = V ISO = 3.3 V.
Table 3. DC-to-DC Converter Static Specifications
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
DC-TO-DC CONVERTER SUPPLY
Isolated Output Voltage
Feedback Voltage Setpoint
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
V ISO
V FB
V ISO (LINE)
V ISO (LOAD)
V ISO (RIP)
V ISO (NOISE)
f SW
3.0
1.15
3.3
1.25
1
1
50
100
1000
3.63
1.37
10
2
V
V
mV/V
%
mV p-p
mV p-p
kHz
I ISO = 0 mA, V ISO = V FB × (R1 + R2)/R2
I ISO = 0 mA
I ISO = 50 mA, V DD1 1 = V DDA 2 = 4.5 V to 5.5V
I ISO = 50 mA to 200 mA
20 MHz bandwidth, C OUT = 0.1 μF||47 μF, I ISO = 100 mA
20 MHz bandwidth, C OUT = 0.1 μF||47 μF, I ISO = 100 mA
R OC = 50 kΩ
200
kHz
R OC = 270 kΩ
209
318
515
kHz
V OC = V DD2 (open-loop)
I DDA Quiescent
Switch On Resistance
I DDA (Q)
R ON
3.5
0.5
5
mA
Ω
Maximum Output Supply Current
Efficiency at Maximum Output Current
I ISO (MAX)
400
500
70
mA
%
f ≤ 1 MHz, V ISO = 3.3 V
I ISO = I ISO (MAX) , f ≤ 1 MHz
1
2
V DD1 is the power supply for the push-pull transformer.
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/15 V SECONDARY ISOLATED SUPPLY
4.5 V ≤ V DD1 = V DDA ≤ 5.5 V, V REG = V ISO = 15 V, V DD2 = 5.0 V, f SW = 500 kHz, all voltages are relative to their respective grounds, see the
application schematic in Figure 32. All minimum/maximum specifications apply over the entire recommended operating range, unless
otherwise noted. All typical specifications are at T A = 25°C, V DD1 = V DDA = 5.0 V, V REG = V ISO = 15 V, V DD2 = 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
Feedback Voltage Setpoint
V DD2 Linear Regulator Voltage
Dropout Voltage
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
V ISO
V FB
V DD2
V DD2DO
V ISO (LINE)
V ISO (LOAD)
V ISO (RIP)
V ISO (NOISE)
f SW
13.8
1.15
4.5
15.0
1.25
5.0
0.5
1
1
200
500
1000
16.5
1.37
5.48
1.5
10
3
V
V
V
V
mV/V
%
mV p-p
mV p-p
kHz
I ISO = 0 mA, V ISO = V FB × (R1 + R2)/R2
I ISO = 0 mA
V REG = 7 V to 15 V, I DD2 = 0 mA to 50 mA
I DD2 = 50 mA
I ISO = 50 mA, V DD1 1 = V DDA 2 = 4.5 V to 5.5 V
I ISO = 20 mA to 100 mA
20 MHz bandwidth, C OUT = 0.1 μF||47 μF, I ISO = 100 mA
20 MHz bandwidth, C OUT = 0.1 μF||47 μF, I ISO = 100 mA
R OC = 50 kΩ
200
kHz
R OC = 270 kΩ
192
318
515
kHz
V OC = V DD2 (open-loop)
I DDA Quiescent
Switch On Resistance
I DDA (Q)
R ON
3.5
0.5
5
mA
Ω
Maximum Output Supply Current
Efficiency at Maximum Output Current
I ISO (MAX)
100
140
70
mA
%
f ≤ 1 MHz, V ISO = 15.0 V
I ISO = I ISO (MAX) , f ≤ 1 MHz
1
2
V DD1 is the power supply for the push-pull transformer.
Rev. 0 | Page 4 of 20
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