LM3560 Datasheet, PDF (28/42 Pages) Texas Instruments – LM3560 Synchronous Boost Flash Driver w/ Dual 1A High-Side Current Sources (2A Total Flash Current)

INDICATOR BLINKING REGISTER (Address 0x13)
The Indicator Blinking Register contains the bits which control
the following:
1. Number of periods (t_PERIOD = t_R + t_F + 2 x t_PULSE )
2. Active Time (t_ACTIVE = t_PERIOD × PERIOD# )
3. Blank Time (t_BLANK = t_ACTIVE × BLANK#)
(see Figure 20)
TABLE 6. Indicator Blinking Register
Bit 7 (N/A)
Not used
Bit 6 (M3) Bit 5 (M2)
BLANK#
0000 = 0 (default)
0001 = 1
0010 = 2
0011 = 3
0100 = 4
0101 = 5
0110 = 6
0111 = 7
1000 = 8
1001 = 9
1010 = 10
1011 = 11
1100 = 12
1101 = 13
1110 = 14
1111 = 15
Bit 4 (M1)
Bit 3 (PW4) Bit 2 (PW3)
Pulse Time (t_PULSE)
0000 = 0 (default)
0001 = 32 ms
0010 = 64 ms
0011 = 92 ms
0100 = 128 ms
0101 = 160 ms
0110 = 196 ms
0111 = 224 ms
1000 = 256 ms
1001 = 288 ms
1010 = 320 ms
1011 = 352 ms
1100 = 384 ms
1101 = 416 ms
1110 = 448 ms
1111 = 480 ms
Bit 1 (PW2)
Bit 0 (PW1)
FIGURE 20. Message Indicator Timing Diagram
30113812
PRIVACY PWM PERIOD REGISTER (Address 0x14)
The Privacy PWM Register contains the bits to control the
PWM period for the privacy indicate mode (see Table 7).
TABLE 7. Privacy PWM Period Register
Bits 7-3
(Not Used)
Bit 2
(P3)
Bit 1
(P2)
000 = 5.12 ms (default)
001 = 2.56 ms
010 = 1.28 ms
011 = 640 µs
1XX = 320 µs
Bit 0
(P1)
27
www.national.com