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Electrical Characteristics
(Circuit of Figure 4, V VIN = 5V, V EN = 5V, default register settings of Table 5, T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C)
PARAMETER
CONDITIONS AND NOTES
MIN
TYP
MAX
UNIT
DC ELECTRICAL CHARACTERISTICS
VIN operating supply voltage
VIN operating supply current
VIN shutdown supply current
VDD regulation voltage
Run mode; all LED strings driven
Sleep mode; SDA, SCL, AD0, AD1, PWM, PHI, GSC at
GND or VDD
4.5
2.35
5
7
20
2.5
5.5
20
25
2.65
V
mA
μA
V
Input high voltage
SDA, SCL, AD0, AD1, PWM, PHI,
GSC
Input low voltage
SDA, SCL, AD0, AD1, PWM, PHI,
GSC
Input high voltage EN
Input low voltage EN
0.7 x
VDD
1.2
0.3 x
VDD
0.8
V
V
V
V
Output low voltage SDA
Output low voltage FLTB
Sinking 6mA
Sinking 6mA
0.4
0.6
V
V
I LED regulation voltage
FBI_ feedback input current
FBO_ feedback output current
FBO_ feedback output current step
size
FBI_ input disable threshold
LED string sink current STR0 to
STR15
I ILED = 10μA
V FBO_ = 0 to 1.8V
FBI_ = GND; T A = +25°C
(Note 10)
R ILED = 34.8kΩ ±0.1%; I STRn = 0x20; V STRn = 1V;
T A = +25°C
R ILED = 34.8kΩ ±0.1%; I STRn = 0x3F; V STRn = 1V;
T A = +25°C (Note 10)
340
0
0
2.5
28.5
355
3
140
30
58.9
370
140
55
3.6
31.5
mV
μA
μA
μA
mV
mA
mA
LED string sink current matching
STR0 to STR15
LED string sink current maximum
STR0 to STR15
R ILED = 34.8kΩ ±0.1%; I STRn = 0x20; V STRn = 1V;
R ILED = 20.5kΩ; I STRn = 0x3F (Note 8, Note 9, Note 10)
100
3
%
mA
Short circuit fault detection
threshold
Thermal cutoff temperature
T A = +25°C
(Note 10)
2.5
3.5
135
4.5
V
°C
Input leakage
10
μA
PARAMETER
CONDITIONS AND NOTES
MIN
TYP
MAX
UNIT
AC ELECTRICAL CHARACTERISTICS
OSC initial accuracy
PHI frequency
OSCTRL = 0x04 (f OSC =20MHz); T A =25°C
18
40
20
22
10000
MHz
Hz
10
Atmel LED Driver-MSL3162
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