Integrated 8-Channel LED Driver with
Switch-Mode Boost and SEPIC Controller
ELECTRICAL CHARACTERISTICS (LED DRIVER)
(V+ = +3V to +5.5V, V AGND = V PGND = 0V; all voltages are measured with respect to PGND, unless otherwise noted. T A = T J = -40°C
to +125°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
Operating Supply Voltage
SYMBOL
V+
CONDITIONS
MIN
3.0
TYP
MAX
5.5
UNITS
V
Output Voltage
V OUT_
36
V
Standby Current (Interface Idle, All
Output Ports High Impedance)
Standby Current
(Interface Active, All Output Ports
High Impedance)
R SET = 360 ? , DIN, LE, CLK = PGND or V+,
OE = V+, DOUT unconnected
R SET = 360 ? , f CLK = 5MHz, OE = V+,
DIN, LE = PGND or V+, DOUT unconnected
3.6
3.8
4.5
4.8
mA
mA
Supply Current
(Interface Idle, All Output Ports
Active Low)
I+
R SET = 360 ? , OE = PGND, DIN,
LE = V+, DOUT unconnected
17
30
mA
INTERFACE (DIN, CLK, DOUT, LE, OE )
Input-Voltage High
(DIN, CLK, LE, OE )
Input-Voltage Low
(DIN, CLK, LE, OE )
Hysteresis Voltage
(DIN, CLK, LE, OE )
V IH
V IL
V HYST
0.7
x V+
0.8
0.3
x V+
V
V
V
Input Leakage Current
(DIN, CLK)
I LEAK
-1
+1
μA
OE Pullup Current to V+
LE Pulldown Current to PGND
I OE
I LE
V+ = 5.5V, OE = PGND
V+ = 5.5V, LE = V+
0.25
0.25
1.5
1.5
25.0
25.0
μA
μA
Output-Voltage High (DOUT)
Output-Voltage Low (DOUT)
V OH
V OL
I SOURCE = 4mA
I SINK = 4mA
V+
- 0.5V
0.5
V
V
OUT_ Output Current
I OUT_
0 o C ≤ T A ≤ +125°C, V OUT = 1V to 2.5V, R SET =
360 ?
T A = -40°C, V OUT = 1V to 2.5V,
R SET = 360 ?
46.5
43
50
53.5
57
mA
OUT_ Leakage Current
OE = V+
1
μA
4
_______________________________________________________________________________________
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