TLD5190QV Datasheet, PDF (42/58 Pages) Infineon Technologies AG – H-Bridge DC/DC Controller for High Power LED Lighting

H-Bridge DC/DC Controller
TLD5190QV
Protection and Diagnostic Functions
10.4
Input current Monitoring
The IINMON pin provides a linear indication of the current flowing through the input. The following Equation (15)
is applicable:
V _IINMON = I _IN ⋅ R _IN ⋅ 20
(15)
Note: If the R_IN value is choosen in a way that the current limitiation is much bigger than the nominal input current
during the application the current measurement becomes inaccurate. Best results for an accurate current
measurement via the V_IINMON pin is to set the current limit only slightly above the specific application related
nominal input current.
10.5
Output current Monitoring
The IOUTMON pin provides a linear indication of the current flowing through the LEDs. The following
Equation (16) is applicable:
V _IOUTMON = 200 mV + I _OUT ⋅ R _FB ⋅ 8
(16)
Data Sheet
42
Rev. 1.0, 2016-05-20