Datasheet

15Atmel LED Drivers-MSL2160/MSL2161
Electrical Characteristics
Typical Application Circuit, V
VIN
= 12V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are T
A
= +25°C
PARAMETER SYMBOL CONDITIONS AND NOTES MIN TYP MAX UNIT
DC ELECTRICAL CHARACTERISTICS
VIN Operating Supply Voltage 10.8 12 13.2 V
VIN Operating Supply Current
All LED strings on 50%
duty cycle
15 30
mA
All LED strings on 100%
duty cycle
30 70
VIN Shutdown Supply Current EN = GND 500 µA
VIN Sleep Supply Current
SLEEP = 1, SDA, SCL,
ADDR, PWM, PHI and GSC
at GND or VDD
2.75 mA
VCC Regulation Voltage 4.5 5.0 5.5 V
VDD Regulation Voltage 2.4 2.5 2.6 V
EN Input High Voltage 1.8 V
EN Input Low Voltage 0.9 V
PWM, PHI, GSC, Input High Voltage 0.7 x V
VDD
V
PWM, PHI, GSC, Input Low Voltage
0.3 x
V
VDD
V
PHI, GSC Output High Voltage I
SOURCE
= 5mA V
VDD
– 0.4
PHI, GSC, FLTB Output Low Voltage I
SINK
= 6mA 0.4 V
FBO1 - FBO3 Feedback Output Current FBOn DAC = 0xFF, V
FBOn
= 0 208 306 360 µA
FBO1 - FBO3 Feedback Output Current Step
INCRSTEP[0:1] = 00,
DECRSTEP[0:1] = 00
1.2 μA
D0 - D15 Short Circuit Fault
Detection Threshold
8 V
G0 - G15 Open Circuit Fault
Detection Threshold
8 V
G0 - G15 Maximum Gate Drive Current 0.7 mA
G0 - G15 Maximum Gate Drive Voltage V
VIN
– 2.5 V
S0 - S15 Regulation Voltage ISTR = 0xFF 475 500 525 mV
S0 - S15 Voltage Accuracy
ISTR = 0x7F, T
A
= +25°C -1.5 +1.5
%
ISTR = 0x7F -4 +4
S0 - S15 Regulation Voltage Matching
ISTR = 0x7F, T
A
= +25°C, 1
st
string to all others
-0.5 +0.5
%
ISTR = 0x7F, string to average
of all strings
-1.5 +1.5
Thermal Shutdown Temperature
Temperature rising, hysteresis
= 15°C (Note 1)
135 °C
Atmel LED Drivers-MSL2160/MSL2161
16-string, White and RGB LED Drivers with Adaptive Configuration,
EEPROM, and SPI/I
2
C/SMBus Serial Interface