LM3560

SNOSB43B – SEPTEMBER 2011 – REVISED AUGUST 2013

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ENABLE REGISTER (Address 0x10)

Bits [1:0] of the Enable Register controls the on/off state of Torch mode, Flash mode, and Privacy Indicate mode.

Bit 2 selects the peak current setting for Privacy Indicate mode (max or min torch current). Bits [4:3] turn on/off

the main current sources (LED1 and LED2). Bit [5] sets the level or edge control for the STROBE input. Bits 7

and 6 control the Indicator current source (see Table 4).

Table 4. Enable Register Descriptions

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

(EN Blink)

(EN Message

(STROBE

(LED2

(LED1

(Privacy

(EN1)

(EN0)

Indicator)

Level/Edge)

ENABLE)

Enable)

Mode Peak

Current

Setting)

0 = Message

0 = Message

0 = (Level Sensitive)

0 = LED2 off

0 = LED1 off

0 = 31.25mA

Enable Bits

Indicator

Indicator is

When STROBE goes

1 = LED2 on

1 = LED1 on

(default)

00 = Current Sources are

Blinking

disabled

high, the Flash current

(default)

(default)

1 = 250 mA

Shutdown (default)

Function is

(Default)

will turn on and remain

01 = Privacy Indicator Mode

1= Message

on for the duration the

10 = Torch Mode

(default)

Indicator is

STROBE pin is held high

11 = Flash Mode (bits reset

1 = Message

enabled.

or when the Flash

at timeout)

Indicator

Timeout occurs,

Blinking

whichever comes first.

Function is

(default)

enabled. The

1 = (Edge Triggered)

message

When STROBE goes

indicator blinks

high, the Flash current

the pattern

will turn on and remain

programmed in

on for the duration of the

the Indicator

Flash Time-out.

Register and

Indicator

Blinking

Register

(1)

Bit 7 Enables/Disables the Message Indicator Blinking Function. With this bit set to 0 and Bit 6 set to 1, the Message Indicator turns on

constantly at the programmed current as set in Indicator Register bits [2:0].

PRIVACY REGISTER (Address 0x11)

The Privacy Register contains the bits that control which current source is used for the privacy indicator (LED1 or

LED2 or both), whether the privacy indicator turns off or remains on after the flash pulse terminates, and the duty

cycle settings (between 10% and 80%) for setting the average privacy LED current (see Table 5 ).

Table 5. Privacy Register

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2 (PD2)

Bit 1 (PD1)

Bit 0 (PD0)

(Blink 2)

(Blink 1)

(LED2 Privacy)

(LED1 Privacy)

(Privacy

Terminate)

0 = LED2 is off

0 = LED1 is off

0 = Privacy

Privacy mode current levels (% of minimum or

00 = No Blinking

for privacy

for privacy

mode turns

maximum torch current, depending on bit [2] of

01 = 128 ms Blink Period

mode (Default)

mode

back on at the

Enable Register)

(Default)

1 = LED2 is on

1 = LED1 is on

end of the flash

000 = 10% (Default)

10 = 256 ms Blink Period

for privacy

for privacy

pulse

001 = 20%

11 = 512 ms Blink Period

mode

mode (Default)

1 = Privacy

010 = 30%

mode remains

011 = 40%

off at the end of 100 = 50%

the flash pulse

101 = 60%

(Default)

110 = 70%

111 = 80%

30

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