L6207 datasheet(21/53 Pages) STMICROELECTRONICS

Nome de Peças	L6207

Descrição Electrónicos	APPLICATION NOTE

PDF	53 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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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

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L6207 Folha de dados(PDF) 21 Page - STMicroelectronics