BD9397EFV_15 Datasheet, PDF (3/31 Pages) Rohm – White LED Driver for large LCD panel

BD9397EFV
Datasheet
●1.1 Electrical Characteristics 1(Unless otherwise specified, Ta=25°C，VCC=24V)
Parameter
Symbol
Min.
Limit
Typ.
Max.
【Whole device】
Operating circuit current
ICC
-
9
16
Stand-by circuit current
ISTB
-
12
20
【REG9V block】
REG9V output voltage
Maximum REG9V output current
REG9V
IREG9V
8.9
9.0
9.1
20
-
-
【Switching block】
N terminal source resistance
RONH
-
2.5
3.5
N terminal sink resistance
RONL
-
3.0
4.2
【Over current protection (OCP) block】
Over current protection voltage
VOCP
0.40
0.45
0.50
【Soft-start block】
SS terminal source current
ISS
-1.4
-1.0
-0.6
SS terminal release voltage
VSS
2.9
3.0
3.1
【Error amplifier block】
LED control voltage
VLED
0.66
0.7
0.74
FB sink current
IFBSINK
55
100
155
FB source current
IFBSOURCE -155
-100
-55
LED_LV terminal input current
【CT oscillator block】
ILED_LV
-2
0
2
Oscillation frequency
FCT
440
500
560
MAX DUTY
DMAX
78
84
91
【Over voltage protection (OVP) block】
OVP detection voltage
VOVP
2.34
2.43
2.52
OVP hysteresis voltage
VOVPHYS
10
50
100
OVP feedback voltage
FBOVP
【Short current protection (SCP) block】
0.93
1.05
1.17
Short circuit protection voltage
【M_LED block】
Diode forward voltage
Forward voltage offset each ch
REG9V pull up resistance
VSCPmL
VSCPmH
0.12
0.20
0.28
0.74
0.79
0.84
VFLED
VFOFFSET
RM_DET
1120
-
60
1340
-
100
1560
20
140
Unit
Condition
mA
STB=3V,LED1-6=ON,
RT=30kΩ
μA STB=0V
V IO=0mA
mA
Ω ION=-10mA
Ω ION=10mA
V VCS=SWEEP UP
μA
V SS=SWEEP UP
V LED_LV=0.7V
μA LED=2.0V, VFB=1.0V
μA LED=0V, VFB=1.0V
uA VLED_LV=3V
kHz RT=30kΩ
%
V VOVP=SWEEP UP
mV VOVP=SWEEP DOWN
V
PMW1-6=0V,SS=2.8V,
VLED_LV=0.7V
V
VOVP=SWEEP DOWN,
FAILMODE=0V
V
VOVP=SWEEP DOWN,
FAILMODE=3V
mV VLED=0V
mV VLED=0V
kΩ
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TSZ22111・15・001
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TSZ02201-0F1F0C100330-1-2
1.Sep.2015 Rev.006