BD9300 Datasheet, PDF (1/3 Pages) Rohm – 1-channel DC/DC converter controller

Regulators
BD9300/F/FV
1-channel DC/DC converter controller
BD9300/F/FV
BD9300/F/FV is an output open collector type of 1-channel DC/DC converter controller. Step-up, step-down and inverting
DC/DC converter can be composed. Input voltage range is wide (3.6V to 35V) and this IC can be used widely for various
applications. Pin layout is nearly the same as BA9700 and it is easy to replace it.
zApplications
TV, power supply for liquid crystal TV, Backlight
DSC, DVC, Printer, DVD, DVD recorder, Other consumer products
zExternal dimensions (Unit : mm)
• BD9300
19.4 ± 0.3
14
8
zFeatures
1) 1-channel PWM control DC/DC converter controller.
2) High voltage input : 3.6 to 35V.
3) Reference voltage accuracy :±1%.
4) Oscillating frequency changeable : 20 to 800kHz.
5) Built-in UVLO (Under voltage lock out) circuit and SCP
(Short circuit protection) circuit.
6) Current at stand-by mode : 0µA (typ.)
7) Switching external synchronization available. (slave operation)
1
7
7.62
0.3 ± 0.1
2.54
0.5 ± 0.1 _{0 ~ 15}
DIP14
• BD9300F
8.7±0.2
14
8
zAbsolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Supply voltage
VCC
36
V
BD9300
Power dissipation BD9300F
Pd
BD9300FV
950 ^∗1
450 ^∗2
mW
400 ^∗3
Operating temperature range
Topr
−40 to +85
°C
Storage temperature range
Tstg
−55 to +125
°C
∗1 Derating : 9.5mW/°C for operation above Ta=25°C.
∗2 Derating : 4.5mW/°C for operation above Ta=25°C.
∗3 Derating : 4.0mW/°C for operation above Ta=25°C.
zRecommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ. Max.
Supply voltage
VCC
3.6
12
35
1
7
0.15±0.1
1.27
0.1
0.4±0.1
SOP14
• BD9300FV
5.0 ± 0.2
14 8
1
7
0.15 ± 0.1
0.1
0.65 _{0.22 ± 0.1}
SSOP-B14
Unit
V
Rev.A
1/2