PM6600 데이터 시트보기 (PDF) - ON Semiconductor

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PM6600

6-rows 30 mA LEDs driver with boost regulator for LCD panels backlight

ON Semiconductor 

PM6600

2

Pin settings

2.1

Connections

Figure 2. Pin connection (through top view)

Pin settings

2.2

Pin description

Table 2. Pin functions

N°

Pin

Function

1

COMP

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

needed to compensate the loop of the boost regulator.

2

RILIM

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

be programmed connecting a resistor to SGND.

3

BILIM

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

be programmed connecting a resistor to SGND.

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

4

FSW

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

external synchronization input. See section 1.3 for details.

5

MODE

Current generators fault management selector. It allows to detect and

manage LEDs failures. See section 3.2 for details.

6

AVCC

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

7

LDO5

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

1 µF ceramic capacitor.

8

VIN

Input voltage. Connect to the main supply rail.

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