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參數(shù)資料
| 型號： | SP7615 |
| 英文描述： | Four Channel Constant Current LED Driver |
| 中文描述： | 4通道恒定電流LED驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 2/10頁 |
| 文件大?。?/td> | 244K |
| 代理商： | SP7615 |
2
Date: 08/31/05
SP7615 Four Channel Constant Current LED Driver Copyright 2005 Sipex Corporation
4.5V < V
CC
<16V , V
EN
= 5V, V
LED1
=V
LED2
=V
LED3
=V
LED4
=1.0V, R
SET
=10k
or I
SET
=126
μ
A, -40 < T
A
< 85oC,
Unless otherwise noted. Typical numbers are for T
A
= 25oC.
ISET and EN Voltage to GND..................................... 6V
Output Current per LED (I
OUT
) ............................. 150mA
Power Dissipation per Package
8-pin DFN at TA = 85oC ......................… 1.1W
Junction Temperature ..........................................+150oC
Storage Temperature ........................... -55oC to +150oC
ESD Level. ....................................................... 2kV HBM
DFN Thermal Resistance......................................59oC/W
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
ABSOLUTE MAXIMUM RATINGS
Note 1. ENABLE "ON" is V
EN
for which I
LED
>
80mA
Note 2. ENABLE "OFF" is V
EN
for which I
LED
< 1uA@ V
LED1
> 1.0V
Vcc, V
LED1
, V
LED2
, V
LED3,
V
LED4
Voltage to GND 0.3V to 16V
ELECTRICAL CHARACTERISTICS
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
Supply Voltage
4.5
5
16
V
Quiescent Supply Current
20
39
mA
I
LED1
= I
LED2
= I
LED3
= I
LED4
=126mA
Output/I
SET
Current Multiplication Ratio
700
1000
1200
LED Current (per diode)
126
mA
LED to LED Current Matching
-5
5
%
LED Current Line Voltage Regulation
0.15
0.6
%/V
I
OUT
change per volt V
CC
change
LED Current Load Voltage Regulation
2
4
%/V
0.4V < V
LED
< 5V, I
LED
= 25mA
9
%/V
1.0V < V
LED
< 5V, I
LED
= 126mA
LED Current Thermal Regulation
0.1
%/oC
I
LED
= 126mA
I
SET
Pin Voltage
1.17
1.26
1.39
V
I
SET
= 1
μ
A
Thermal Shutdown Threshold
150
oC
Thermal Shutdown Hysteresis
20
oC
Current in OFF Mode
1
μ
A
V
EN
= ZeroV
Min. ENABLE “ON Voltage”
(Note1)
1.6
V
Max. ENABLE “OFF Voltage”
(Note 2)
0.4
V
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