Datasheet

Evaluate: MAX17061

Brightness Control and Level

The MAX17061 can be configured to one of any 256

steps of brightness control. To set the brightness, slide

the Brightness Control track bar to the desired posi-

tion, from 0 to 255. The track-bar position is then dis-

played in the Brightness Level group box.

Device Control

The MAX17061’s device control register controls the

operating mode of the backlight controller and backlight

on/off states. The MAX17061 operating modes can be

configured according to the bit settings shown in Table 1.

Fault/Status Detection

The MAX17061’s fault/status read-only register monitors

the backlight controller’s operating state. This register

detects the backlight on/off state, whether one or two

LED output channels are shut down, overcurrent condi-

tions, and thermal faults. When a fault is detected, the

corresponding bit is changed from logic 0 to logic 1 and

the font color is changed to red. Refer to the MAX17061

IC data sheet for more information regarding the

fault/status register.

Manufacturer/Silicon Revision Detection

The ID Register group box provides the manufacturer

and silicon revision information for the MAX17061 IC.

This information is read upon initial startup.

Simple I

C/SMBus Commands

There are two methods for communicating with the

MAX17061, through the normal user interface (Figure

1), or through the SMBus commands available by

selecting the Interface Diagnostic Window menu item

MAX17061 Evaluation Kit/Evaluation System

4 _______________________________________________________________________________________

Figure 1. MAX17061 EV Kit Software Main Window

Table 1. Operating Modes Selected by

Device Control Register

PWM_MD PWM_SEL OPERATING MODE

X 1 PWM mode

1 0 SMBus mode

0 0 SMBus mode with DPST

X = Don’t care.