Hi there,
Please kindly advise what the listed thermal specification of ADE7953 and ADE7858A are :
1. ADE7953 and ADE7858A maximum Temperature of junction ? Tj ?
2. ADE7953 and ADE7858A maximum Temperature of case ? Tc ?
3. ADE7953 Junction-case thermal resistance ? θjc ?
4. ADE7953 Junction-ambient thermal resistance ? θja ?
Thanks!
Webber
For questions 3 and 4 use ADE7978 data same package and process and similar power dissipation
https://www.analog.com/media/en/technical-documentation/data-sheets/ade7978_7933_7932_7923.pdf pg 19
For questions 1 and 2 you can calculate.
https://en.wikipedia.org/wiki/Junction_temperature Tj equation
The power disipation is:
ADE7953 9ma max x 3.6 V max = 32.4mW
ADE7878A(family) 23ma Max x 3.63V max = 83.5mw
ADE79578 Tj = ambient temp of package + 2.4deg
ADE7953 Tj= ambient temp of package + .949 deg
After soaking ambient temp = case temp = approx junction temp
Dave
Webber
For questions 3 and 4 use ADE7978 data same package and process and similar power dissipation
https://www.analog.com/media/en/technical-documentation/data-sheets/ade7978_7933_7932_7923.pdf pg 19
For questions 1 and 2 you can calculate.
https://en.wikipedia.org/wiki/Junction_temperature Tj equation
The power disipation is:
ADE7953 9ma max x 3.6 V max = 32.4mW
ADE7878A(family) 23ma Max x 3.63V max = 83.5mw
ADE79578 Tj = ambient temp of package + 2.4deg
ADE7953 Tj= ambient temp of package + .949 deg
After soaking ambient temp = case temp = approx junction temp
Dave
