LM3559TLX/NOPB National Semiconductor, LM3559TLX/NOPB Datasheet - Page 33

• Manufacturer Part Number: LM3559TLX/NOPB
• Description: LM3559
• Manufacturer: National Semiconductor
• Series: -r

Specifications of LM3559TLX/NOPB

• Constant Current: Yes
• Constant Voltage: -
• Topology: High Side, PWM, Step-Up (Boost)
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Type - Secondary: White LED
• Frequency: 1.8MHz ~ 2.2MHz
• Voltage - Supply: 2.5 V ~ 5.5 V
• Voltage - Output: -
• Mounting Type: Surface Mount
• Package / Case: 16-UFBGA
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Bit 7
(Not
Used)
N/A
ADC DELAY REGISTER
The ADC Delay Register programs the delay from when the
EOC bit goes low to when a conversion is initiated. This delay
INPUT VOLTAGE MONITOR REGISTER
The VIN Monitor Register contains the Enable bit for the VIN
Monitor, the threshold select for the VIN Monitor, the enable
PRIVACY REGISTER
The Privacy Register contains the bits to control which current
source is used for the privacy indicator (LED1 or LED2 or
both), whether the privacy indicator turns off or remains on
N/A
Bit 7
(Blink 2)
00 = No Blinking
01 = 128 ms Blink Period
(default)
10 = 256 ms Blink Period
11 = 512 ms Blink Period
(Not used)
Bit 7
Bit 6
(Not used)
Bit 6
(Blink 1)
(Not used)
Bit 6
Bit 5 (No Delay)
0 = Delay is set by bits [4:0]
(default)
1 = no delay from when the EOC
goes low to when the conversion is
started.
00= 2.9V (default)
01 = 3.0V
10 = 3.1V
11 = 3.2V
Threhold 1)
Bit 5
(LED2
Privacy)
0 = LED2 is off
for privacy
mode
(default)
1 = LED2 is on
for privacy
mode
(VIN Flash
Monitor
Bit 5
TABLE 13. VIN Monitor Register
TABLE 12. ADC Delay Register
Threhold 0)
Bit 4
(LED1
Privacy)
0 = LED1 is off
for privacy
mode
1 = LED1 is on
for privacy
mode
(default)
(VIN Flash
TABLE 14. Privacy Register
Monitor
Bit 4
Bit 4 (D1)
Bits [4:0] programs the delay from when the EOC bit goes low to when
a conversion is started (250 µs/step).
00000 = 250 µs (default)
:
:
:
:
11111 = 8ms
33
0 = VIN Flash
1 = VIN Flash
(VIN Flash
Bit 3
(Privacy
Terminate)
0 = Privacy
mode turns
back on at the
end of the
flash pulse
1 = Privacy
mode turns off
at the end of
the flash pulse
(default)
Monitor is
Monitor is
(default)
Monitor
Enable)
disabled
enabled
Bit 3
applies to both Manual Mode and Automatic Mode. Bit 5 is
the No-Delay bit and can set the delay to effectively 0. (See
Table
bit for the VIN Flash Monitor, and the threshold select for the
VIN Flash Monitor (see
after the flash pulse terminates, and the duty cycle settings
(between 10% and 80%) for setting the privacy LED current
(see
Table
12,
Bit 3 (D2)
Figure
00 = 2.9V (default)
01= 3.0V
10 = 3.1V
11 = 3.2V
(VIN Monitor
Threshold 1)
14).
Bit 2 (PD2)
Privacy mode current levels (% of minimum
torch current)
000 = 10% (default)
001 = 20%
010 = 30%
011 = 40%
100 = 50%
101 = 60%
110 = 70%
111 = 80%
Bit 2
13, and
Table
Bit 2 (D3)
Figure
Threshold 0)
(VIN Monitor
Bit 1 (PD1)
13).
Bit 1
14.)
Bit 1 (D4)
disabled (default)
0 = VIN Monitor
1 = VIN Monitor
(VIN Monitor
Bit 0 (PD0)
Enable)
enabled
Bit 0
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Bit 0 (D5)