an30888b Panasonic Corporation of North America, an30888b Datasheet - Page 6
an30888b
Manufacturer Part Number
an30888b
Description
High Brightness Led Driver Ic
Manufacturer
Panasonic Corporation of North America
Datasheet
1.AN30888B.pdf
(31 pages)
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AN30888B
Notes)
Application Circuit Example (Block Diagram) (continued)
V
IN
Buck Mode
VFB_SEL
This application circuit is an example. The operation of mass production set is not guaranteed. Perform enough evaluation and verification on
the design of mass production set.
Use external resistor with ±1% accuracy at CS pin.
Use ceramic type capacitor (Typ. 1 μF, Min. 0.5 μF) at VREG pin.
Use schottky diode at VOUT.
This block diagram is for explaining functions. The part of the block diagram may be omitted, or it may be simplified.
PWM
ENB
VIN
1
12
10
2
UVLO
EN
Reference
voltage
BGR
1.262 V
VREG
CONTROL
3.65 V
SDG00005AEB
1 μF
9
4
7
6
SW
CS
GNDP
OVP
D
V
R
I
PK
CS
FB
L
2.2 μF
V
OUT
I
LED
6
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