LM36010 Datasheet, PDF(20/37 Page) Texas Instruments – Synchronous-Boost, Single-LED Flash Driver With 1.5-A High-Side Current Source

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LM36010 Datasheet, PDF (20/37 Pages) Texas Instruments – Synchronous-Boost, Single-LED Flash Driver With 1.5-A High-Side Current Source

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LM36010

SNVSAN4A â APRIL 2017 â REVISED JULY 2017

7.6 Register Descriptions

Enable Register

Configuration Register

LED Flash Brightness Register

LED Torch Brightness Register

Flags Register

Device ID Register

INTERNAL HEX ADDRESS

0x01

0x02

0x03

0x04

0x05

0x06

www.ti.com

POWER ON/RESET VALUE

LM36010

0x20

0x15

0x00

0x01

7.6.1 Enable Register (0x01)

Bit 7

Bit 6

Boost Mode Boost

0 = Normal

Frequency

(Default)

Select

1 = Pass Mode 0 = 2 MHz

Only

(Default)

1 = 4 MHz

Bit 5

Bit 4

Boost Current IVFM Enable

Limit Setting 0 = Disabled

0 = 1.9 A

(Default)

1 = 2.8 A

1 = Enabled

(Default)

Bit 3

Strobe Type

0 = Level

Triggered

(Default)

1 = Edge

Triggered

Bit 2

Bit 1

Bit 0

Strobe Enable Mode Bits: M1, M0

0 = Disabled 00 = Standby (Default)

(Default )

01 = IR Drive

1 = Enabled 10 = Torch

11 = Flash

NOTE

Edge strobe mode is not valid in IR MODE. Switching between level and edge strobe

types while the device is enabled is not recommended.

In edge or level strobe mode, TI recommends that the trigger pulse width be set greater

than 1 ms to ensure proper turn-on of the device.

7.6.2 Configuration Register (0x02)

Bit 7

Bit 6

IVFM Levels (IVFM-D)

000 = 2.9 V (Default)

001 = 3 V

010 = 3.1 V

011 = 3.2 V

100 = 3.3 V

101 = 3.4 V

110 = 3.5 V

111 = 3.6 V

Bit 5

Bit 4

Bit 3

Flash Time-out Duration

0000 = 40 ms

0001 = 80 ms

0010 = 120 ms

0011 = 160 ms

0100 = 200 ms

0101 = 240 ms

0110 = 280 ms

0111 = 320 ms

1000 = 360 ms

1001 = 400 ms

1010 = 600 ms (Default)

1011 = 800 ms

1100 = 1000 ms

1101 = 1200 ms

1110 = 1400 ms

1111 = 1600 ms

Bit 2

Bit 1

Bit 0

Torch Ramp

0 = No Ramp

1 = 1 ms

(default)

NOTE

On the LM36010, special care must be taken with regards to thermal management when

using time-out values greater than 500 ms. Depending on the PCB layout, input voltage,

and output current, it is possible to have the internal thermal shutdown circuit trip prior to

reaching the desired flash time-out value.

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