BD18340FV-M Datasheet, PDF (6/39 Pages) Rohm – Constant Current Controller for Automotive LED Lamps

BD18340FV-M BD18341FV-M
Datasheet
Electrical Characteristics2
(Unless otherwise specified Ta = -40 to +125°C, VIN = 13V, CVREG = 1.0µF, Transistor PNP = 2SAR573D)
Parameter
Symbol
Min
Limit
Typ
Max
Unit
Conditions
[ CRTIMER ]
CRT Terminal Charge Current
ICRT
36
40
44
μA
CRT Terminal Charge Voltage
CRT Terminal
Discharge Voltage 1
CRT Terminal
Discharge Voltage 2
CRT Terminal Charge Resistor
CR Timer Discharge Constant
DISC Terminal ON Resistor 1
VCRT_CHA
VCRT_DIS1
VCRT_DIS2
RCHA
VCRT_CHA /
VCRT_DIS1
RDISC1
0.72
1.80
2.10
28.5
0.38
20
0.80
2.00
2.40
30.0
0.40
50
0.88
2.20
3.00
31.5
0.42
100
V
V
V
When VCRT > VCRT_DIS2,
RD1 -> RD2
kΩ
RCHA=
(VCRT_DIS1- VCRT_CHA)/ ICRT
V/V
Ω IDISC = 10mA
DISC Terminal ON Resistor 2
RDISC2
2.5
5.0
PWMOUT Terminal
Output High Voltage
VPWMOUTH
4.0
-
PWMOUT Terminal
Output Low Voltage
VPWMOUTL
-
-
PWMOUT Terminal
Sink Current Capability
IPWMOUT
-
-
_SINK
PWMOUT Terminal
Source Current Capability
IPWMOUT
_SOURCE
-0.5
-
CRT Terminal Leakage Current
ICRT_LEAK
-
-
[ LED Open Detection ]
LED Open Detection Voltage
VOPD
1.1
1.2
OP Terminal
Input Current
IOP
19
21
[ Disable LED Open Detection Function at Reduced-Voltage]
OPM Terminal Source Current
IOPM
VIN Terminal Disable LED Open
Detection Voltage
at Reduced-Voltage
OPM Terminal
Input Voltage Range
VIN_OPM
VOPM_R
[ Disable LED Open Detection Time Setting ]
38
VOPM
× 5.9
1.0
40
VOPM
× 6.0
-
Input Threshold Voltage
VDH
0.9
1.0
10
kΩ IDISC = 100μA
5.5
V IPWMOUT = -100μA
0.5
V IPWMOUT = 100μA
0.5
mA
-
mA
10
μA VCRT = 70V
1.3
V VOPD = VIN - VOP
23
μA VOP = VIN - 0.5V
42
VOPM
× 6.1
2.2
μA
V VIN terminal Voltage
V
1.1
V
D Terminal Source Current
IDSOURCE
100
230
400
μA
D Terminal ON Resistor
RD
-
-
950
Ω ID_EXT = 100μA
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TSZ02201-0T1T0C700180-1-2
2016.04.21 Rev.002