BD94121F Datasheet, PDF (3/28 Pages) Rohm – PFC Direct current resonance type White LED Driver for Large LCD

BD9412F
Absolute Maximum Ratings (Ta = 25°C)
Parameter
Symbol
Rating
Unit
Supply Voltage
STB, PWM2DC, N2, N1
Terminal Voltage
RT, FB, IS, VS, PWMCMP, CP,
PWMIN, ADIM, SS, FAIL,
COMPSD Terminal Voltage
Power Dissipation
VCC
20
V
VSTB,VPWM2DC,VN2,VN1
20
V
VRT,VFB,VIS,VVS,VPWMCMP,
VCP,VPWMIN,VADIM,VSS,
5.5
V
VFAIL,VCOMPSD
Pd
0.69 ^{(Note 1)}
W
Operating Temperature Range
Topr
-40 to +85
°C
Junction Temperature
Tjmax
150
°C
Storage Temperature Range
Tstg
-55 to +150
°C
(Note 1) Derating in done 5.5 mW/°C for operating above Ta≥25°C (Mount on 1-layer 70.0mm x 70.0mm x 1.6mm board)
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions (Ta= -40°C to +85°C)
Parameter
Symbol
Power Supply Voltage
VCC
PWMIN Input Frequency Range
fPWMIN
Oscillation Frequency
fOUT
PWM2DC Input Voltage Range
fPWM2DC
ADIM Input Voltage Range
VADIM
ADIM Range with Linearity IS
VADIMLIN
Range
Unit
9.0 to 18.0
V
60 to 500
Hz
30 to 300
kHz
0.09 to 30
kHz
0 to 5
V
0.5 to 2.1
V
External Components Recommended Range (Ta= -40°C to +85°C)
Parameter
Symbol
Range
Unit
RT Connection Resistance
RRT
20 to 200
kΩ
CP Connection Capacitance
CCP
0.01 to 2.2 ^{(Note 2)}
µF
ADIM Connection Capacitance
CADIM
0.22 to 10 ^{(Note 2)}
µF
SS Connection Capacitance
CSS
0.01 to 0.1 ^{(Note 2)}
µF
(Note 2) Please set connection capacitance above Min value of Recommended Range according to temperature characteristic and DC bias characteristic.
Pin Configuration
(TOP VIEW)
Physical Dimension and Marking Diagram
(Max 11.55 (include.BURR))
Product Name
BD94121F
BD94121F
Figure. 3 Pin Configuration
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© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
Lot No.
(UNIT : mm)
PKG : SOP18
Drawing No. : EX115-5001
SOP18(Unit:mm)
Figure. 4 Physical Dimension and Marking Diagram
3/24
TSZ02201-0F5F0C100100-1-2
22.Feb.2016 Rev.001