SC620_09 Datasheet, PDF (3/18 Pages) Semtech Corporation – Octal LED Driver,General Purpose Current Sink With Serial Interface

SC620
Absolute Maximum Ratings
IN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
Pin Voltage — All Other Pins (V) . . . . . . . . . -0.3 to V + 0.3
IN
ESD Protection Level⁽¹⁾ (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recommended Operating Conditions
Ambient Temperature Range (°C). . . . . . . . . . . . -40 to +85
Thermal Information
Thermal Resistance, Junction to Ambient⁽²⁾ (°C/W) . . . . 39
Operating Junction Temperature (°C) . . . . . . . . -40 to +150
Storage Temperature Range (°C) . . . . . . . . . . . -65 to +150
Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES:
(1) Tested according to JEDEC standard JESD22-A114-B.
(2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Electrical Characteristics
Unless otherwise noted, T = +25°C for Typ, -40ºC to 85°C for Min and Max, V = 2.7V to 5.5V, C = 1μF, ΔV ≤ 1.5V
A
IN
IN
F
Parameter
Symbol
Condition
Min
Maximum LED Current Setting⁽¹⁾
LED Current Setting Accuracy⁽¹⁾
Load Regulation
LED Current Matching Accuracy⁽¹⁾
Dropout Voltage
Shutdown Current
Current Step Size
Quiescent Current
I
LEDn
ΔI_LEDn
I = 15mA, V = 3.4V,
LEDn
F
-7
V = 2V, T = 25ºC
ILEDn
A
5mA < I ≤ 25mA,
ΔI_LEDn/ ΔV_F
LEDn
T = 25ºC
-2
A
I
I = 15mA, T = 25ºC
-5
LED-to-LED
LEDn
A
V
I = 25mA
DO
LEDn
I
EN = GND
SHDN
Normal Mode⁽³⁾
I
STEP
Low-Current Mode⁽⁴⁾
Standby: EN = V ,
IN
LED1-8 disabled⁽²⁾
I
Q
EN = V , I = 1.968mA⁽⁴⁾
IN LED1-8
EN = V , I = 25mA(3)
IN LED1-8
Typ
25
0.1
500
31.25
720
4.5
Max Units
mA
+7
%
2
%/V
+5
%
150
mV
1
μA
μA
μA
60
μA
μA
mA
3