PM6600 datasheet(5/43 Pages) STMICROELECTRONICS

5 / 43 page

PM6600

Pin settings

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Pin settings

2.1

Connections

2.2

Pin description

Figure 2.

Pin connection (through top view)

Table 2.

Pin functions

N°

Function

1COMP

Error amplifier output. A simple RC series between this pin and ground is

needed to compensate the loop of the boost regulator.

RILIM

Output generators current limit setting. The output current of the ROWs can

be programmed connecting a resistor to SGND.

BILIM

Boost converter current limit setting. The internal MOSFET current limit can

be programmed connecting a resistor to SGND.

4FSW

Switching frequency selection and external sync input. A resistor to SGND

is used to set the desired switching frequency. The pin can also be used as

external synchronization input. See Section 7.3 on page 25 for details.

5MODE

Current generators fault management selector. It allows to detect and

manage LEDs failures. See Section 9.2 on page 36 for details.

AVCC

+5 V analog supply. Connect to LDO5 through a simple RC filter.

7LDO5

Internal +5 V LDO output and power section supply. Bypass to SGND with a

µF ceramic capacitor.

VIN

Input voltage. Connect to the main supply rail.

PM6600 Datasheet(PDF) 5 Page - STMicroelectronics