BD9394FP Datasheet, PDF (4/31 Pages) Rohm – White LED Driver for large LCD Panels (DCDC Converter type)

BD9394FP, BD9394EFV
Datasheet
●Electrical Characteristics (Unless otherwise noted, Ta = 25^oC, VCC=24V)
Parameter
Symbol
Min.
Limit
Typ.
Max.
[DC/DC Protection Block]
Overvoltage protection detection
voltage
VOVP
2.7
Overvoltage protection detection
hysteresis voltage
VOVP_HYS
50
Short circuit protection detection
voltage
VSCP
0.04
3.00
100
0.10
3.3
200
0.25
[LED Driver Block]
LED pin current accuracy 1
dILED1
-2
-
2
LED pin current accuracy 2
dILED2
LED pin Leakage Current
LED open detection voltage
ILLED
VOPEN
LED short detection voltage
VSHORT
LSP pin resistive divider upper side
resistance
LSP pin resistive divider lower side
resistance
NADIM pin Input Current
[STB Block]
RULSP
RDLSP
ILNADIM
STB pin high-level voltage
STBH
STB pin low-level voltage
STBL
STB pin pull-down resistance
RSTB
[PWM Block]
PWM pin high-level voltage
PWMH
PWM pin low-level voltage
PWML
PWM pin pull-down resistance
RPWM
[Failure Indication Block (Open Drain)]
AUTO pin source current
IAUTO
AUTO pin Detection Voltage
VAUTO
Abnormal Detection Timer
tCP
-3
-2.5
0.05
4
1000
500
-2.5
-
-
0.2
5
2000
1000
-
3
2.5
0.285
6
3000
1500
2.5
2
-
35
-0.3
-
0.8
500
1000 1500
2
-
35
-0.3
-
0.8
180
300
420
-2
-1
-0.5
3.6
4.0
4.4
20
Unit
Condition
V VOVP=SWEEP UP
mV VOVP=SWEEP DOWN
V VOVP=SWEEP DOWN
%
ILED=100mA,
(VNADIM=2.62V,RISET=75kΩ)
%
ILED=100mA,
(VNADIM=7V,RISET=75kΩ)
uA VLED=60V
V VLED=SWEEP DOWN
V
VLED=SWEEP UP,
VLSP=OPEN
kΩ VLSP=0V
kΩ VLSP=3V
uA VNADIM=5V
V STB=SWEEP UP
V STB=SWEEP DOWN
kΩ VSTB=3.0V
V PWM=SWEEP UP
V PWM= SWEEP DOWN
kΩ PWM=3.0V
µA VAUTO=2V
V VAUTO=SWEEP UP
ms RT=75kΩ
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TSZ22111・15・001
4/28
TSZ02201-0F1F0C100180-1-2
09.Nov.2012 Rev.002