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BD9397EFV Datasheet, PDF (3/30 Pages) Rohm – White LED Driver for large LCD panel | |||
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BD9397EFV
Datasheet
â1.1 Electrical Characteristics 1(Unless otherwise specified, Ta=25°Cï¼VCC=24V)
Parameter
Symbol
Min.
Limit
Typ.
Max.
ãWhole deviceã
Operating circuit current
ICC
-
9
16
Stand-by circuit current
ãREG9V blockã
REG9V output voltage
Maximum REG9V output current
ãSwitching blockã
ISTB
REG9V
IREG9V
-
12
20
8.9
9.0
9.1
20
-
-
N terminal source resistance
RONH
-
2.5
3.5
N terminal sink resistance
RONL
ãOver current protection (OCP) blockã
-
3.0
4.2
Over current protection voltage
ãSoft-start blockã
VOCP
0.40
0.45
0.50
SS terminal source current
ISS
-1.4
-1.0
-0.6
SS terminal release voltage
ãError amplifier blockã
VSS
2.9
3.0
3.1
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
ãCT oscillator blockã
ILED_LV
-2
0
2
Oscillation frequency
FCT
440
500
560
MAX DUTY
DMAX
ãOver voltage protection (OVP) blockã
78
84
91
OVP detection voltage
VOVP
2.34
2.43
2.52
OVP hysteresis voltage
VOVPHYS
10
50
100
OVP feedback voltage
FBOVP
0.93
1.05
1.17
ãShort current protection (SCP) blockã
Short circuit protection voltage
VSCP
ãM_LED blockã
Diode forward voltage
VFLED
Forward voltage offset each ch
VFOFFSET
REG9V pull up resistance
RM_DET
0.12
1120
-
60
0.20
1340
-
100
0.28
1560
20
140
Unit
Condition
mA
STB=3V,LED1-6=ON,
RT=30kâ¦
μA STB=0V
V IO=0mA
mA
⦠ION=-10mA
⦠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=30kâ¦
%
V VOVP=SWEEP UP
mV VOVP=SWEEP DOWN
V
PMW1-6=0V,SS=2.8V,
VLED_LV=0.7V
V VOVP=SWEEP DOWN
mV VLED=0V
mV VLED=0V
kâ¦
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TSZ02201-0F1F0C100330-1-2
9.Jan.2014 Rev.001
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