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ADuM5402, Viso specification on datasheet

Question asked by usaghi on Feb 28, 2013
Latest reply on Mar 1, 2013 by MSCantrell



Please let me ask to confirm the description on datasheet of ADuM5402, in case 3.3V primary (VDD1) / 3.3V secondary (Viso)

such as below.

DS DCDC spec.bmp

Here, recommended operation range for VDD1 is, 3.0 V ≤ VDD1 ≤ 3.6 V.

Question is, at Setpoint in 1st row, shows Viso is  3.0 V ≤ Viso ≤ 3.6 V.  Does it mean,

a) Viso is determined by actual value of Vdd1 with in the above range ? In other words, if Vdd1 is 3.5V for example, Viso will be around 3.5V uniquely ?


b) Despite what voltage of VDD1 is, Viso will be in the range of 3.0 V ≤ Viso ≤ 3.6 V ? In other words, even if Vdd is quite stable around 3.5V, Viso can be 3.0 V ≤ Viso ≤ 3.6 V ?


Your confirmation would be very much appreciated.

Best Regards,