Datasheet

8 Atmel LED Drivers-MSL3163/MSL3164
Electrical Characteristics
(Typical Application Circuit, VIN = 5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at VIN = 5V, T
A
= +25°C).
PARAMETER SYMBOL CONDITIONS AND NOTES MIN TYP MAX UNIT
DC ELECTRICAL CHARACTERISTICS
VIN Operating Supply Voltage VIN 4.75 5 5.5 V
VIN Operating Supply Current I
VIN
EN = VIN, SLEEP = 0, R
ILED
=
12.7kΩ,
PHI = 240Hz,
GSC = 983.04kHz,
POWERCTRL = 0x4F,
ISTR = 0xFF,
OSCCTRL = 0x04, GSCINTEN =
0, PHIINTEN = 0,
STRnEN = 1
PWMn
=
0x7FF
18 28
mA
PWMn
=
0xFFF
24 35
VIN Shutdown Supply Current I
SHDN
EN = GND, SDA, SCL, AD0, AD1, PWM,
PHI and GSC = GND
10 µA
VIN Sleep Current I
SLEEP
EN = 1, SLEEP = 1, SDA, SCL, AD0, AD1,
PWM, PHI and GSC = GND or VDD
1.5 mA
VDD Regulation Voltage VDD 2.4 2.5 2.6 V
Input High Voltage: SDA, SCL, PWM,
PHI, GSC, MOSI, CSB
V
IH
0.7 x
VDD
V
Input Low Voltage: SDA, SCL, PWM, PHI,
GSC, MOSI, CSB
V
IL
0.3 x
VDD
V
Input High Voltage: EN 1.22 V
Input Low Voltage: EN 0.8 V
Output High Voltage: PHI, GSC, MISO V
OH
I
SOURCE
= 5mA
VIN –
0.4
V
Output Low Voltage: PHI, GSC, SDA,
MISO, FLTB
V
OL
I
SINK
= 5mA 0.4 V
ILED Regulation Voltage R
ILED
= 12.7kΩ 350 mV
FBI Feedback Input Current 0 365 μA
FBO Feedback Output Current Range V
FBO
≤ VIN – 0.5V 0 365 μA
FBO Feedback Output Current Step Size 1.1 μA
FBI Input Disable Threshold 50 mV
STR0 thru STR15 Sink Current R
ILED
= 12.7kΩ, ISTR = 0xFF, V
STRn
= 1V 55 60 67 mA
STR0 thru STR15 Sink Current Maximum R
ILED
= 7.68kΩ, ISTR = 0xFF (Note 1) 100 mA
STR0 thru STR15 Current Load
Regulation
R
ILED
= 12.7kΩ; ISTR = 0xFF,
FLDBKEN = 0, V
STRn
= 1V to 5V
0.033 %/V
STR0 thru STR15 Current Matching R
ILED
= 12.7kΩ, ISTR = 0x7F, V
STRn
= 1V -5 5 %
STR0 thru STR15 Minimum Headroom V
STR
R
ILED
= 12.7kΩ; ISTR = 0xFF 0.5 V
STR0 thru STR15 Short Circuit Fault
Detection Threshold
SC
REF
3.5 V
STR0 thru STR15 Current Slew Rate
Current rising (Note 2) 608
mA/µs
Current falling (Note 2) 10868
Thermal Shutdown Temperature (Note 2) 135 °C