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PDF AP3152 Data sheet ( Hoja de datos )
| Número de pieza | AP3152 | |
| Descripción | 120mA HIGH EFFICIENCY WHITE LED DRIVER | |
| Fabricantes | Diodes Incorporated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AP3152 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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AP3152
120mA HIGH EFFICIENCY WHITE LED DRIVER
Features
General Description
• Up to 88% Max power efficiency
• Wide input voltage range: 2.7V ~ 5.5V
• 1x, 1.5x, and 2x charge-pump modes
• Drive up to 4 white LEDs
• 120mA maximum output current through 4 channels
• Programmable switching frequency, default 1.2MHz
• Up Spread Spectrum Control with 10% frequency
deviation
• 1-wire Serial Digital Interface (SDI) or
PWM for dimming control
• Soft-start during power-up and mode
switching
• Soft-stop during shutdown
• Short-circuit protection
• Over-voltage protection and under-voltage lockout
• Low quiescent current < 1µA
• Industry-leading low profile package
• Lead Free package: DFN3030-12
• DFN3030-12: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish / RoHS Compliant (Note 1)
The AP3152 is a high efficiency charge-pump white LED driver
with 1x, 1.5x, 2x operating modes. The AP3152 operates on
power supplies from 2.7v to 5.5v. It drives up to four channels of
white LEDs while the intensity of each channel is configured by
varying the respective current levels. Each channel can supply up
to 30mA current. Up to four channels can be ganged together to
provide maximum load current of 120mA.
The Serial Digital Interface (SDI) provides the capability to
configure the current for each LED channel. Some of other key
features, such as Up Spread Spectrum Control, different
charge-pump switching frequencies (0.6MHz/1.2MHz/1.8MHz),
and PWM dimming control, can also be programmed through the
interface.
The AP3152 has built-in soft-start circuit to minimize the inrush
current during power-up and mode switching. Various protections
such as short-circuit, over-voltage, under-voltage, and thermal
shutdown are integrated to ensure system reliability. The
quiescent current of AP3152 during shutdown is less than 1µA.
Applications
• Mobile Phone
• PDA (Personal Digital Assistant)
• White LED Backlighting
• Camera Flash LED Lighting
• LCD Modules
• Portable Devices
Ordering Information
AP 3152 X X X
Package
F : DFN3030-12
Lead Free
G : Green
Packing
-7 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
AP3152F
Package Code
F
Packaging
(Note 2)
DFN3030-12
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
Note:
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP3152 Rev. 1
1 of 11
www.diodes.com
SEPTEMBER 2007
© Diodes Incorporated
1 page  
www.DataSheet4U.com
AP3152
120mA HIGH EFFICIENCY WHITE LED DRIVER
Electrical Characteristics
CIN = COUT = C1 = C2 = 1.0µF; TA = 25°C, VIN = 3.5V. Unless otherwise stated.
Symbol
Description
Conditions
Min Typ.
IQ
ISHDN
IDX
ID-Match
TSS
FCLK
FSSP
VSDI(L)
VSDI(H)
TSLO
TSHI
fPWM
TPWM
TPLO
TPHI
TOFF
TSEP
ISDI
PD
θJA
θJC
Quiescent Current
Shutdown Current
ISINK Current Accuracy1
Current Matching2
Soft-start Time
Switching Clock Frequency
Spread Spectrum
SDI Threshold Low
SDI Threshold High
SDI Low Time
SDI High Time
PWM Frequency (Range 1)
PWM Frequency (Range 2)
PWM Signal Period
PWM Signal Low (LED off)
PWM Signal High (LED on)
Chip Disable (held low)
Interval between SDI
sequences (held high)
SDI Input Leakage
Maximum Power
Dissipation1
Thermal Resistance1 –
Junction to Ambient
Maximum Thermal
Resistance1 – Junction to
case
1X Mode
Fosc=1.2MHz,
SDI=HIGH, no load
SDI = 0
ISINK = 20mA
VF: D1=D2=D3=D4
Enabled
VIN = 2.7V
VIN = 5.5V
PWM
No PWM
PWM
No PWM
DFN3030-12
(Note 6)
DFN3030-12
(Note 6)
-1
-10
1.6
0.05
0.05
0.2
20
1/
fPWM-Max
1
1
-1
1.2
1
0.6/1.2/1.8
+10
65
512
65
512
0.85
160
21
Note:
4. Determined by the average current levels of all active channels.
5. Defined as the deviation of any sink current from the average of all active current channels
6. Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout.
Max
1
10
5
0.4
50
50
1.5
30
1/
fPWM-Min
TPWM – 1
TPWM – 1
100
800
100
800
1
Units
mA
µA
%
%
ms
MHz
%
V
V
µs
µs
KHz
KHz
µs
µs
µs
ms
µs
ms
µs
µA
W
°C/W
°C/W
AP3152 Rev. 1
5 of 11
www.diodes.com
SEPTEMBER 2007
© Diodes Incorporated
5 Page 
www.DataSheet4U.com
AP3152
120mA HIGH EFFICIENCY WHITE LED DRIVER
Package Information ( unit: mm )
0.10 C
0.08 C
B
R0.3
2.9 / 3.1
2.3 / 2.5
Seating plane
C
A
2x- 0.25 B
0.45typ
0.18/0.28
Bottom View
0.10 M C A B
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
AP3152 Rev. 1
11 of 11
www.diodes.com
SEPTEMBER 2007
© Diodes Incorporated
11 Page | ||
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| PDF Descargar | [ Datasheet AP3152.PDF ] | |
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