Datasheet

ADuM5000 Data Sheet
Rev. B | Page 4 of 16
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
4.5 V ≤ V
DD1
≤ 5.5 V, V
SEL
= GND
ISO
, each voltage is relative to its respective ground. 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
= 5.0 V, V
ISO
= 3.3 V,
and V
SEL
= GND
ISO
.
Table 4.
Parameter Symbol Min Typ Max Unit Test Conditions
DC-TO-DC CONVERTER POWER SUPPLY
Setpoint V
ISO
3.0 3.3 3.6 V I
ISO
= 0 mA
Line Regulation V
ISO(LINE)
1 mV/V I
ISO
= 50 mA, V
DD1
= 4.5 V to 5.5 V
Load Regulation V
ISO(LOAD)
1 5 % I
ISO
= 10 mA to 100 mA
Output Ripple V
ISO(RIP)
50 mV p-p 20 MHz bandwidth, C
BO
= 0.1 μF||10 μF,
I
ISO
= 90 mA
Output Noise V
ISO(N)
130 mV p-p C
BO
= 0.1 μF||10 μF, I
ISO
= 90 mA
Switching Frequency f
OSC
180 MHz
PWM Frequency
f
PWM
625
kHz
I
DD1
Supply Current, Full V
ISO
Load I
DD1(MAX)
250 mA I
ISO
= 100 mA
Maximum Output Supply Current I
ISO(MAX)
100 mA V
ISO
> 3.0 V
Efficiency at Maximum Output
Supply Current
28 % I
ISO
= 100 mA
I
DD1
Supply Current, No V
ISO
Load I
DD1(Q)
3 12 mA I
ISO
= 0 mA
Undervoltage Lockout, V
DD1
and V
ISO
Supply
Positive Going Threshold V
UV+
2.7 V
Negative Going Threshold V
UV−
2.4 V
Hysteresis V
UVH
0.3 V