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PDF DD313-4 Data sheet ( Hoja de datos )
| Número de pieza | DD313-4 | |
| Descripción | 40V Adjustable Current Sink Linear LED Driver | |
| Fabricantes | SiTi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DD313-4 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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DD313-4
Version
: PRE.002
Issue Date : 2015/11/23
File Name : SP-DD313-4-PRE.002.doc
Total Pages : 15
40V Adjustable Current Sink Linear LED Driver
新竹市科學園區展業一路 9 號 4 樓之 3
SILICON TOUCH TECHNOLOGY INC.
9-4F-3, Prosperity Road I, Science Based Industrial Park,
Hsin-Chu, Taiwan 300, R.O.C.
Tel：886-3-5645656 Fax：886-3-5645626
1 page  
DD313-4
Electrical Characteristics
At Vcc = 4.5 to 40 V, TA = -40C to 85C. Typical values at Vcc = 24 V and TA = 25C, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN TYP MAX
Driver Characteristic
Leakage output current
IOL IOUT = 40V, driver off
0.36
Constant current error
(device-to-device)
Line regulation
Load regulation
Temperature drift
IOL1
IOL2
IOL3
IOL4
IOUT, 100% PWM duty, VOUT = 1.0 V, REXT
= 33 (~ 20 mA)
IOUT, 100% PWM duty, VOUT =1.0 V, REXT =
33 (~ 20 mA)
IOUT, 100% PWM duty, VOUT = 1.0 ~ 10V,
REXT = 33 (~ 20 mA)
Junction temperature < 125C
Current Sensing
-5
3
0.01
0.01
5
Current sensing voltage VSENSE
650
Regulated Supply
PSRR
VPSRR DC to 1MHz (VCC = 24 V), IOUT = 20mA
-64
PSRR
VPSRR DC to 1MHz (VCC = 36 V), IOUT = 20mA
-64
Turn on time
tON
500
Temperature Sensor
Thermal alarm threshold TALM Junction temperature (TJ)
100 115 130
Thermal shutdown
threshold
TSHD Junction temperature (TJ)
150 165 175
Thermal error hysteresis THYS Junction temperature (TJ)
5 10 20
Pull-high resistor
PWM Function
RPH
Connected between internal supply (4.4 V)
and PWM IN pin
4.0
LED Open Detection
LED open detection
threshold
VLO
0.3
Pull-high resistor
Open drain current
ALARM Function
RPH
Connected between internal supply (4.4 V)
and ALARM OUT pin
IOD Vout = 0.4 V
90
2.3
Supply Current
100% PWM duty, REXT = 33 (~ 20 mA)
1.1
Supply current
ICC 100% PWM duty, REXT = 13 (~ 50 mA)
100% PWM duty, REXT = 6.5 (~ 100 mA)
1.1
1.1
UNIT
µA
%
%/V
%/V
%
mV
dB
(A/V)
µs
C
C
C
KΩ
V
KΩ
mA
mA
40V Adjustable Current Sink Linear LED Driver
Version:PRE.002
未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.
Page 4
5 Page 
DD313-4
Power Dissipation Calculation
The device power dissipation must be lower than the power dissipation rate of the
device package material as illustrated in Figure 7 to ensure a correct operation. The
equation below calculates the power dissipation of a device.
Where:
VCC = device supply voltage
ICC = device supply current
VOUT = IOUT voltage when driving LED current
IMAX = LED current adjusted by REXT resistor
DPWM = average duty ratio defined by scaled PWM duty
Figure 7. Power dissipation vs. temperature
40V Adjustable Current Sink Linear LED Driver
Version:PRE.002
未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.
Page 10
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet DD313-4.PDF ] | |
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