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AX2006 PDF даташит

Спецификация AX2006 изготовлена ​​​​«AXElite» и имеет функцию, называемую «0.6A Step-down High Brightness LED Driver».

Детали детали

Номер произв AX2006
Описание 0.6A Step-down High Brightness LED Driver
Производители AXElite
логотип AXElite логотип 

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AX2006 Даташит, Описание, Даташиты
AX2006
32V, 0.6A Step-down High Brightness
LED Driver with 5000:1 Dimming
GENERAL DESCRIPTION
The AX2006 is a continuous conduction mode inductive step-down converter, designed
for driving single or multiple series connected LED efficiently from a voltage source higher
than the total LED chain voltage. The device operates from an input supply between 8V and
32V and provides an externally adjustable output current of up to 0.6A. Depending upon the
supply voltage and external components, the AX2006 can provide more than 15 watts of
output power. The AX2006 includes the power switch and a high-side output current sensing
circuit, which uses an external resistor to set the nominal average output current, and a
dedicated DIM input accepts a wide range of pulsed dimming. Applying a voltage of 0.3V or
lower to the DIM pin turns the output off and switches the device into a low current standby
state.
The AX2006 is available in SOT89-5L package.
FEATURES
- Simple low parts count
- Wide input voltage range: 8V to 32V
- Up to 0.6A output current
- Single pin on/off and brightness control using PWM
- Up to 1MHz switching frequency
- Typical 5% output current accuracy
- High-Side Current Sense
- Hysteretic Control: No Compensation
- Adjustable Constant LED Current









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AX2006 Даташит, Описание, Даташиты
AX2006
BLOCK DIAGRAM
VIN V25
CSN
70µ
CS
- COMPARATOR
+
130mV
2.5V -
+
UVLO
COMPARATOR
DIM
DIM
BUFFER
SW
GATE
DRIVER
Driver
GND
PIN ASSIGNMENT
The package of AX2006 is SOT89-5L; the pin assignment is given by:
VIN (Top View) CSN
5 GND 4
Name
SW
GND
Description
Switch Output. SW is the output of
the internal driver switch.
Signal and power ground. Connect
directly to ground plane.
AX2006
12 3
Logic level dimming input. Drive
DIM
DIM low to turn off the current
regulator. Drive DIM high to enable
the current regulator.
SW GND DIM
SOT89-5L
CSN Current sense input
VIN
Input Supply Pin. Must be locally
bypassed.
ORDER/MARKING INFORMATION
Order Information
AX2006 XX X
Package Type
F5: SOT89-5L
Packing
Blank : Tube
A : Taping
Top Marking
20 0 6
YWX
Part number
ID code: internal
WW: 01~26 (A~Z)
27~52 (a~z)
Year: A=2010
1=2011
2/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Dec.23, 2009









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AX2006 Даташит, Описание, Даташиты
AX2006
ABSOLUTE MAXIMUM RATINGS (at TA=25°C)
Characteristics
Symbol
Rating
Unit
Supply Voltage
VIN
-0.3 to 40
V
Driver output Voltage
SW
-0.3 to 40
V
Current sense input (Respect to VIN)
CSN +0.3 to (-6.0) V
Logic level dimming input
DIM -0.3 to +6 V
Switch output current
ISW 0.8 A
Power Dissipation
PDMAX 1.5 W
Operation Junction Temperature Range
TJ -40 to 125 °C
Storage Temperature
TSTG -55 to 150 °C
Thermal Resistance from Junction to case
θJC 15 °C/W
Thermal Resistance from Junction to ambient
θJA 50 °C/W
Note: θJA is measured with the PCB copper are (need connect to tap) of approximately 1 in2 (Multi-layer).
ELECTRICAL CHARACTERISTICS
The following specifications apply for VIN = 12V, TA=25°C, unless specified otherwise.
Characteristics
Symbol Conditions Min Typ Max Units
Input voltage
VIN 8 - 32 V
Under voltage lock out
VUVLO VIN rising
- 7-V
UVLO Hysterisis
VUVLO_hys VIN falling
- 1000 - mV
Max. Switching Frequency
FSW
- - 1 MHZ
Current Sense
Mean current sense threshold voltage VCSN VINVCSN
120 130 140 mV
Sense threshold hysteresis
VCSN_hys
- ±15 - %
CSN Pin Input Current
ICSN VINVCSN = 50mV - 0.5 - μA
DIM Input
DIM input voltage High
VDIM_H
2.0 - - V
DIM input voltage Low
VDIM_L
- - 0.3 V
Max. DIM Frequency
fDIM fOSC = 500kHz
Duty cycle
dimming
range
of
low
frequency
DPWM_LF
fDIM = 100Hz
Brightness control range
- - 50
0.02% - 1
- 5000:1 -
kHZ
3/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Dec.23, 2009










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