L6206 datasheet(21/53 Pages) STMICROELECTRONICS

Il numero della parte	L6206

Spiegazioni elettronici	APPLICATION NOTE

PDF	53 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

Logo

21 / 53 page

21/53

AN1762 APPLICATION NOTE

Figure 21. Typical disable and delay time as a function of CEN, for several values of REN.

3.13 Adjusting the Over Current Detection trip point (L6206 ONLY)

The L6206 allows the user to set the Over Current Detection threshold separately for the two full bridges con-

necting two resistors (RCL) to pins PROGCLA and PROGCLB. The OCD threshold (ISOVER) follows the equa-

tions:

–ISOVER = 5.6A ±30% at -25 °C < Tj < 125 °C if RCL = 0 Ω (PROGCL connected to GND)

–ISOVER =

±10% at -25 °C < Tj < 125 °C if 5K Ω < RCL < 40k Ω

Figure 22 shows the OCD threshold versus RCL value in the range from 5kΩ to 40kΩ.

11 0

1 0 0

0. 1

C EN [ nF]

11 0

1 0 0

10 0

1 . 10

C EN [ nF]

R EN = 220 k

Ω

R EN = 100 k

Ω

R EN = 47 k

Ω

R EN = 33 k

Ω

R EN = 10 k

Ω

22100

----------------

L6206 Scheda tecnica(PDF) 21 Page - STMicroelectronics