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RT8489 Scheda tecnica(PDF) 5 Page - Richtek Technology Corporation

Il numero della parte RT8489
Spiegazioni elettronici  High Voltage 4-CH LED Driver Controller
PDF  16 Pages
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Produttore elettronici  RICHTEK [Richtek Technology Corporation]
Homepage  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8489 Scheda tecnica(HTML) 5 Page - Richtek Technology Corporation

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RT8489
5
DS8489-00 November 2012
www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Overall
Supply Current
IVCC
VVC ≤ 0.4V (Switching off)
--
5
8
mA
Shutdown Current
ISHDN
VEN ≤ 1.2V
--
5
--
μA
Logic-High
VIH
2
--
--
EN Input Voltage
Logic-Low
VIL
--
--
0.5
V
EN Input Current
IEN
VEN ≤ 3.3V
--
2
--
μA
LED Current Programming
SENSE1-SENSE4 Threshold
6V > VGATEx > 2V
214
225
236
mV
SENSE Voltage CH to CH Matching
(MAX)
(MIN)
(avg)
VV
2V
−
×
--
1.5
3
%
Analog Dimming ACTL Input Current IACTL
VACTL ≤ 6V
--
--
10
μA
LED Current Off Threshold at ACTL
VACTL_OFF
--
0.4
--
V
Absolute Maximum Ratings (Note 1)
VCC ---------------------------------------------------------------------------------------------------------------------------
−0.3V to 32V
ISENSE
DC------------------------------------------------------------------------------------------------------------------------------
−0.3V to 2V
< 20ns ------------------------------------------------------------------------------------------------------------------------
−0.3V to 6V
GBIAS-------------------------------------------------------------------------------------------------------------------------
−0.3V to 14V
SENSE1 to SENSE4
DC------------------------------------------------------------------------------------------------------------------------------
−0.3V to 1V
< 20ns ------------------------------------------------------------------------------------------------------------------------
−0.3V to 6V
LED1 - LED4 (Note 5) ----------------------------------------------------------------------------------------------------
−0.3V to 20V
DCTL, ACTL, EN, OVP ---------------------------------------------------------------------------------------------------
−0.3V to 10V
Power Dissipation, PD@TA= 25
°C
SOP-24 ----------------------------------------------------------------------------------------------------------------------- 1.3W
Package Thermal Resistance (Note 2)
SOP-24,
θJA ----------------------------------------------------------------------------------------------------------------- 77°C/W
Junction Temperature ------------------------------------------------------------------------------------------------------ 150
°C
Storage Temperature Range ---------------------------------------------------------------------------------------------
−65°C to 150°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------- 260
°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ----------------------------------------------------------------------------------------------- 2kV
MM (Machine Model) ------------------------------------------------------------------------------------------------------ 200V
(VIN = 12V, No Load, TA = 25
°C, unless otherwise specified)
Recommended Operating Conditions
(Note 4)
Supply Voltage, VIN ------------------------------------------------------------------------------------------------------- 7V to 28V
Junction Temperature Range ---------------------------------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range ---------------------------------------------------------------------------------------------
−40°C to 85°C



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