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PDF AP3033 Data sheet ( Hoja de datos )
| Número de pieza | AP3033 | |
| Descripción | WHITE LED STEP-UP CONVERTER | |
| Fabricantes | BCD Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AP3033 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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WHITE LED STEP-UP CONVERTER
General Description
Features
Preliminary Datasheet
AP3033
The AP3033 is an inductor-based DC/DC boost con- · Up to 92% Efficiency
verter designed to drive LED arrays. 1.3A switching
current allows AP3033 to be used in different 7' to 10'
LCD panel backlights (3S8P LED arrays typically).
·
(VIN=9V, IOUT=160mA)
Up to 88% Efficiency
(VIN=5V, IOUT=160mA)
A constant frequency 1MHz PWM control scheme is · Fast 1MHz Switching Frequency
employed in this IC, which means tiny external com- · Wide Input Voltage Range: 3V to 16V
ponents can be used. Specifically, 1mm tall 10µH · Low 200mV Feedback Voltage
inductor and 10µF output capacitor for the typical · Output Over Voltage Protection
application is sufficient.
· Cycle by Cycle Current Limit: 1.3A
The over output voltage protection is equipped in
AP3033, which protects the IC under open load condi-
tion. The AP3033 includes UVLO, soft-start, standby
·
·
·
High Frequency PWM Dimming
Built-in Soft-start
Built-in Thermal Shutdown Function
mode, current limit and OTSD to protect the circuit.
· Under Voltage Lockout
The AP3033 is available in standard TSOT-23-6 pack-
age. Applications
· 7' to 10' LCD Panels
· Digital Photo Frame
· GPS Receiver
· Netbook
· PDVD
Jan. 2010 Rev. 1. 0
TSOT-23-6
Figure 1. Package Type of AP3033
BCD Semiconductor Manufacturing Limited
1
1 page  
Preliminary Datasheet
WHITE LED STEP-UP CONVERTER
Electrical Characteristics
(VIN=5.0V, VCTRL =5.0V, TA=25oC, unless otherwise specified.)
AP3033
Parameter
Operating Voltage
Symbol
VIN
Conditions
Min Typ Max
3.0 16
Quiescent Current
Shutdown Quiescent Current
Feedback Voltage (Note 2)
IQ
ISHDN
VFB
VFB=VIN, no switching
VCTRL=0V
IOUT=20mA, 3 LEDs,
TA=-40oC to 85oC
4.0 5.0 6.0
50
188 200 212
FB Pin Bias Current
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch VCE Saturation Voltage
Switch Leakage Current
CTRL Pin Voltage
CTRL Pin Bias Current
OVP Voltage
Soft-start Time
Standby Time
Thermal Shutdown
IFB
f
DMAX
ILIMIT
VCESAT
VCTRL
ICTRL
VOVP
tSS
tSTB
TOTSD
D=60%
ISW=0.6A
VSW=38V
35 100
0.75 1
1.3
90 93
1.2 1.3
350
0.01 5
1.2
60
17
80
0.45
150
Note 2: The bold type specifications of full temperature range are guaranteed by design (GBD).
Unit
V
mA
µA
mV
nA
MHz
%
A
mV
µA
V
µA
V
µs
ms
oC
Jan. 2010 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
5
5 Page 
WHITE LED STEP-UP CONVERTER
Typical Application
Preliminary Datasheet
AP3033
VIN
5V
CIN
10 µF
On /Off
L 10 µH
D
VIN SW
OV
AP3033
CTRL
GND
FB
VOUT
COUT
10µF
3S8P
R ISET
Figure 17. Typical Application of AP3033 (3S8P WLEDs)
Jan. 2010 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AP3033.PDF ] | |
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