LM3556TMXSLASHNOPB datasheet(22/38 Pages) TI2

22 / 38 page

tBLANK

tPERIOD

ITORCH

tBLANK

tPULSE

tPERIOD

tPULSE

tPERIOD

LM3556

SNVS796D – AUGUST 2011 – REVISED OCTOBER 2015

www.ti.com

7.6.1.5 Indicator Blinking Register (0x04)

Table 6. Indicator Blinking Register Description

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

NBLANK

Pulse Time (tPULSE)

0000 = 0 (default)

0001 = 1

0001 = 32 ms

0010 = 2

0010 = 64 ms

0011 = 3

0011 = 92 ms

0100 = 4

0100 = 128 ms

0101 = 5

0101 = 160 ms

0110 = 6

0110 = 196 ms

0111 = 7

0111 = 224 ms

1000 = 8

1000 = 256 ms

1001 = 9

1001 = 288 ms

1010 = 10

1010 = 320 ms

1011 = 11

1011 = 352 ms

1100 = 12

1100 = 384 ms

1101 = 13

1101 = 416 ms

1110 = 14

1110 = 448 ms

1111 = 15

1111 = 480 ms

7.6.1.6 Indicator Period Count Register (0x05)

Table 7. Indicator Period Count Register Description

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

RFU

NPERIOD

000 = 0 (default)

001 = 1

010 = 2

011 = 3

100 = 4

101 = 5

110 = 6

111 = 7

Figure 37. Indicator Usage

1. Number of periods (tPERIOD = tR + tF + tPULSE × 2)

2. Active Time (tACTIVE = tPERIOD × NPERIOD)

3. Blank Time (tBLANK = tACTIVE × NBLANK)

Figure 38. Single Pulse With Dead Time

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