BD9422EFV_15 Datasheet, PDF (4/30 Pages) Rohm – White LED Driver for large LCD panel

BD9422EFV
Datasheet
●1.2 Electrical Characteristics 2(Unless otherwise specified, Ta=25°C，VCC=24V)
Parameter
Symbol
Min.
Limit
Typ.
Max.
【UVLO block】
Operation power source voltage (VCC) VUVLO_VCC 7.0
7.5
8.0
Hysteresis voltage (VCC)
VUHYS_VCC 150
300
600
UVLO Release voltage
VUVLO_U
2.40
2.50
2.60
UVLO detection voltage
VUVLOD_U 2.15
2.30
2.45
UVLO terminal input resistance
RUVLO
395
610
825
【Filter block】
CP detection voltage
CP source current
VCP
ICP
1.9
2.0
2.1
-1.2
-1.0
-0.8
【LED driver block】
S terminal voltage
LED current rise time
LED current fall time
OPEN detection voltage
VSLED
ILEDtr
ILEDtf
VOPEN
196
200
204
294.6
300
305.4
392.8
400
407.2
491
500
509
-
400
760
-
100
280
0.12
0.20
0.28
SHORT detection voltage
VSHORT
5.7
6.0
6.3
SHORT MASK voltage
VREF terminal input current
LSP terminal input current
VSHTMASK 2.85
3.0
3.15
IVREF
-2
0
2
ILSP
-2
0
2
【STB block】
STB terminal HIGH voltage
STB terminal LOW voltage
STB terminal Pull Down resistance
STBH
STBL
RSTB
2.0
-
VCC
-0.3
-
0.8
0.5
1.0
1.5
【PWM IN block】
PWM terminal HIGH voltage
PWMH
PWM terminal LOW voltage
PWML
PWM terminal Pull Down resistance
RPWM
【FAIL_MODE,FAIL_RST,SUMPWM block】
2.0
-
20
-0.3
-
0.8
200
300
400
Input terminal High voltage
Input terminal Low voltage
Input terminal Pull Down resistance
【FAIL block（OPEN DRAIN）】
FAIL LOW output voltage
VINH
VINL
RVIN
VOL
2.0
-
20
-0.3
-
0.8
60
100
140
0.25
0.5
1.0
Unit
Condition
V VCC=SWEEP UP
mV VCC=SWEEP DOWN
V VUVLO=SWEEP UP
V VUVLO=SWEEP DOWN
kΩ VUVLO=3V
V CP=SWEEP UP
μA VCP=0V
mV VREF=1.0V
mV VREF=1.5V
mV VREF=2.0V
mV VREF=2.5V
ns VREF=0.3V,RS=2Ω
ns VREF=0.3V,RS=2Ω
V VLED=SWEEP DOWN
V
VLED=SWEEPUP,
VLSP=1.2V
V
μA VVREF=3V
μA VLSP=3V
V
V
MΩ STB=3V
V
V
kΩ PWM=3V
V
V
kΩ VIN=3V
V IOL=1mA
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TSZ22111・15・001
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TSZ02201-0F1F0C100210-1-2
1.Sep.2015 Rev.006