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BD6142AMUV
● Electrical Characteristics – continued (Unless otherwise specified, VIN=12V, Ta = +25 ℃ )
Datasheet
Parameter Symbol
Limits
Min. Typ. Max.
Unit
Conditions
[Switching Regulator]
LED Control voltage
VLED
0.64
0.80
0.96
V
Switching frequency accuracy
Duty cycle limit
LX Nch FET RON
Fsw
Duty
RON
1.00
91.0
-
1.25
95.0
0.48
1.50
99.0
0.58
MHz
%
?
FSET=56k ?
CH1-8=0.3V, FSET=56k ?
ILX=80mA
[Protection]
Over Current Limit
Over voltage limit Input
Output Short Protect
OVP leak current
CH Terminal
Over Voltage Protect accuracy
Ocp
OVP
OVPfault
OVIL
VSC
1.5
1.16
0.02
-
-15
2.5
1.20
0.05
0.1
0
-
1.24
0.08
1.0
+15
A
V
V
μA
%
*1
Detect voltage of OVP
Detect voltage of OVP
VSC=5V
[Current driver]
LED maximum current
ILMAX
-
-
30
mA
LED current accuracy
ILACCU
-
-
±2.5
%
ILED=20mA (36k ? )
(Max LED current – Min LED
LED current matching
ILMAT
-
-
2.5
%
current)/ Ideal current (20mA)
ILED=20mA
? Each LED current/Average
LED current matching2
ILMAT2
-
-
1.5
%
(CH1- 8)
? ILED=20mA
LED current limiter
ISET voltage
LED current accuracy2
ILOCP
Iset
ILACCU2
-
-
-
0
0.733
±3.0
0.1
-
-
mA
V
%
Current limit value at ISET
Resistance 1k ? setting
ILED=20mA, ABC=0.733V
*1
This parameter is tested with DC measurement.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
3/30
TSZ02201-0G3G0C400340-1-2
03.Dec.2012 Rev.001
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