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TCA62724FMG Fiches technique(PDF) 9 Page - Marktech Corporate

No de pièce TCA62724FMG
Description  Three-Channel Constant-Current LED Driver
Download  14 Pages
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Fabricant  MARKTECH [Marktech Corporate]
Site Internet  http://www.marktechopto.com
Logo MARKTECH - Marktech Corporate

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TCA62724FMG(O,S,EL
2010-06-24
9
Absolute Maximum Ratings (Ta = 25°C)
Characteristic
Symbol
Ratings *1
Unit
Suppl y
vol t age
VIN
−0.3 ~ +6.0
V
Ou tput
vol t ag e
VOUT
−0.3 ~ +6.0
V
Input
volt age
(SDA/SCL/
SHDN / RESET Terminal)
Vin
−0.3 ~ VIN+0.3 *2
V
0.36 (free air)
Po w e r
dissip a tion
PD
0.79(on PCB) *3,4
W
340 (free air)
T herm a l
resistan c e
Rth (j-a)
158 (on PCB) *3
°C/W
Operatin g temperature
Topr
−40 ~ +85
°C
S t o r age
te mpe r a t u r e
Tstg
−55 ~ +150
°C
Maximum junction temperature
Tj
150
°C
Note1: Voltage is ground referenced.
Note2: Do not exceed 6.0V.
Note3: PCB condition 40 mm x 40 mm x 1.6 mm, Cu = 10 %
Note4: The power dissipation decreases the reciprocal of the saturated thermal resistance (1/ Rth(j-a)) for each
degree (1°C) that the ambient temperature is exceeded (Ta = 25°C).
Recommended Operating Condition
Characteristic
Symbol
Condition
Min
Typ.
Max
Unit
Suppl y
voltage
VIN
-
2.8
3.6
5.5
V
Constan t curren t ou tput
IOUT
OUT0 to OUT2
5
-
150
mA/ch
RE X T
r e sistance
REXT
-
3.7
-
109
kΩ
Electrical Characteristics (unless otherwise specified, Ta = 25°C, VIN = 3.6V)
Characteristic
Symbol
Condition
Min
Typ
Max
Unit
Supply voltage
VIN
-
2.8
3.6
5.5
V
Supply current (IC operation)
IIN (On)
REXT = 27.6 kΩ, VIN = 3.6 V
-
-
700
μA
Supply current (IC standby)
IIN (Off)
SHDN
= L
-
-
10
μA
High level
VIH
0.7VIN
-
VIN+0.15V
Input voltage
Low level
VIL
Measuring terminal is
SDA, SCL, SHDN , RESET
−0.15
-
0.3VIN
V
High level
IIH
−1.0
-
1.0
Input current
Low level
IIL
Measuring terminal is
SCL, SHDN , RESET
−1.0
-
1.0
μA
Gain
(I OU T /I RE X T )
GAIN
REXT=11kΩ
359
460
560
A/A
REXT te rminal volt ag e
VREXT
VIN=3.6V, REXT=11kΩ
1.09
1.17
1.25
V
Output leakage current
IOZ
SHDN
=“L”, VOUT=5.5V
-
-
0.1
μA
Const a nt
cu rren t
a ccu ra c y be t w een bi t s
dIOUT
VIN = 3.6 V, REXT = 11 kΩ
-
±1
±7.5
%
PWM
frequenc y
fPWM
-
-
3.0
-
kHz
Time from SHDN release to
st art
of
oper at i o n
tRE
-
-
-
5
ms


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