BD93942F Datasheet, PDF (3/30 Pages) Rohm – White LED Driver for large LCD Panels (DCDC Converter type)

BD93942F
Marking diagram and physical dimension
SOP16
BD93942F
LOT No.
Datasheet
Figure 4. Physical Dimension
Electrical Characteristics (Unless otherwise noted, Ta = 25^oC, VCC=24V)
Parameter
Symbol
Min.
Limit
Typ.
[Whole Device]
Circuit current while in operation
ICC
-
3.7
Circuit current while in standby
[REG58 Block]
REG58 Output Voltage
REG58 available current
[UVLO Block]
UVLO release voltage
UVLO hysteresis voltage
[DC/DC Block]
ISTB
-
40
REG58
5.742
5.8
IREG58
15
-
VUVLO_VCC 6.5
7.5
VUHYS_VCC 150
300
Error amp. Reference voltage
VLED
0.425 0.450
Oscillation frequency
Max. duty cycle per output of N pin
On resistance on N pin source side
On resistance on N pin sink side
SSFB pin source current
(at soft start)
SSFB sink current
SSFB source current
Over current detection voltage
fsw
DMAX
RONH
RONL
ISSSO
IFBSI
IFBSO
VCS
142.5
83
-
-
-13.0
50
-150
0.40
150.0
90
4
3
-10.0
100
-100
0.45
Max.
7.4
80
5.858
-
8.5
600
0.475
157.5
97
8
6
-7.0
150
-50
0.50
Unit
Condition
mA
STB=3V,PWM=3V,
RT=100kΩ
μA STB=0V
V IO=0mA
mA
V VCC=SWEEP UP
mV VCC=SWEEP DOWN
V
ISET=50kΩ, ADIM=2.5V
ILED=150mA
kHz RT=100kΩ
% RT=100kΩ
Ω ION=-10mA
Ω ION=10mA
uA SSFB=2V
μA LED=2.0V,SSFB=1.0V
μA LED=0V, SSFB=1.0V
V CS=SWEEP UP
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