Powersolve PMQ7250 Series Instrukcja Użytkownika Pobierz pdf (Strona 2)

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England

Tel: 01635 521858 Fax: 01635 523771 Email: sales@powersolve.co.uk

www.powersolve.co.uk

DC-DC Switching Regulator

Test Configurations

Trim resistors for common output voltages

PMQ7250-1 PMQ7250-2

Output Voltage Trimming

Resistor values are in Ω, Vout is desired output voltage:

Formula: PMQ7250-1 Formula: PMQ7250-2

Rtrim = 10500

-3480 = Resistor Value Rtrim = 10500 -1000 = Resistor Value

Vout-3.018 Vout-5.021

Example: Trim to 5V Example: Trim to 12V

Rtrim = 3037.8

-3480 = 1817Ω Rtrim = 10500 -1000 = 504Ω

5 -3.018 12 -5.021

V out Resistor (kΩ) Vout Resistor (kΩ)

3V open cct 5V open cct

4V 7.212K 6V 9.72K

5V 1.817K 7V 4.3K

6V 0.041K 8V 2.525K

9V 1.64K

10V 1.11K

11V 0.756K

12V 0.505K

13V 0.316K

14V 0.169K

15V 0.0522K

1 2 3 4 5 6

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Powersolve PMQ7250 Series Instrukcja Użytkownika Strona 2