A8169E6R-020 [AITSEMI]
STEP-UP DC/DC CONVERTER;
| 型号： | A8169E6R-020 |
| 厂家： | 
AiT Semiconductor |
| 描述： | STEP-UP DC/DC CONVERTER |
| 文件： | 总7页 (文件大小：286K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A8169-020
LED BACKLIGHT DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
STEP-UP DC/DC CONVERTER
DESCRIPTION
FEATURES
The A8169-020 Series is a fixed frequency,
constant current step-up DC/DC converter ideal for
driving LEDs used in high-definition screen
backlight LED driver etc. The highest output voltage
is 24V, the input voltage of 3.6V can drive 3 series,
17 in parallel, a total of 51 LED. The internal circuit
integrated overvoltage protection circuit and
temperature protection circuit, and the brightness of
the LEDs can be controlled with a PWM signal. The
internal circuit integrates a large pipes of 0.2 ohms.
Input voltage range: 3.0V~6.0V
Output voltage range: up to 24V
Oscillation frequency: 1.2MHz±20%
Efficiency: 88%
Control mode: PWM control
Stand-by Current: ISTB=1.0μA(MAX)
Load capacitor: 10μF,ceramic
Available in SOT-26 Package
APPLICATION
The A8169-020 is available in SOT-26 package.
HD screen LED driver
ORDERING INFORMATION
TYPICAL APPLICATION
Package Type
Part Number
A8169E6R-020
A8169E6VR-020
SOT-26
E6
SPQ: 3,000pcs/Reel
V: Halogen free Package
R: Tape & Reel
Note
AiT provides all RoHS products
The application of single section lithium electricity power supply
Caution: The value of the resistance named RLED: RLED=VFB/(ILED*n);
VFB is the voltage of the FB pin; ILED is the current of LED and equal
to 20mA usually. n is the number of LEDs in the circuit in parallel.
REV2.0
- JAN 2013 RELEASED, SEP 2017 UPDATED -
- 1 -
A8169-020
LED BACKLIGHT DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
STEP-UP DC/DC CONVERTER
PIN DESCRIPTION
Top View
Pin #
Symbol
LX
Function
1
2
3
4
5
6
SWITCH
Ground
VSS
FB
Voltage Feedback
Chip Enable
CE
OVP
VIN
Over voltage protect
Power Input
ABSOLUTE MAXIMUM RATINGS
VIN, VIN Pin Voltage
Vss-0.3V～Vss+7V
VOUT, OUT Pin Voltage
VLX, LX Pin Voltage
Vss-0.3V～Vss+26V
Vss-0.3V～Vss+26V
Vss-0.3V～Vss+7V
Vss-0.3V～Vss+7V
2500mA
VFB, FB Pin Voltage
VCE, CE Pin Voltage
ILX, LX Pin Current
VOVP, OVP Pin Voltage
PD, Power Dissipation
TOPR, Operating Temperature Range
TSTG, Storage Temperature Range
Vss-0.3V～Vss+26V
250mW
SOT-26
-40°C ~ 85°C
-55°C~ 125°C
Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and
operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
REV2.0
- JAN 2013 RELEASED, SEP 2017 UPDATED -
- 2 -
A8169-020
LED BACKLIGHT DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
STEP-UP DC/DC CONVERTER
ELECTRICAL CHARACTERISTICS
TA=25℃
Parameter
FB Control Voltage
Output Voltage Range
LX Operating Voltage Range
Operating Voltage Range
Stand-by Current
Supply Current 1
Supply Current 2
Oscillation Frequency
Maximum Duty Cycle
Efficiency
Symbol
VFB
Conditions
Min.
0.19
VIN
Typ.
0.20
Max.
0.21
24
Unit
V
Circuits
1
1
1
1
3
2
3
2
2
1
4
2
2
3
2
2
3
3
3
3
VOUT
VLX
V
24
V
VIN
3.0
6.0
1
V
ISTB
VCE=0V, VLX=5V
μA
IDD1
800
250
1.2
92
μA
IDD2
VIN=VLX, VFB=0.4V
fOSC
1.0
86
1.4
98
MHz
%
MAXDTY VCONT=0.4V
EFFI
ILIM
VIN=3.6V;RLED=20Ω
88
%
Current Limit
VIN=3.6V
2500
24
mA
V
OVP Overvoltage Limit
LX On Resistance
LX Leak Current
CE ‘H’ Voltage
OVPOVL
VIN=3.6V, VLX=0.4V
0.2
0
Ω
ILXL
VCEH
VCEL
ICEH
ICEL
1
μA
V
1
CE ‘L’ Voltage
0.6
0.1
V
CE ‘H’ Current
VIN=VLX, VFB=0.4V
VCE=0V, VLX=5V
VIN=VLX, VFB=0.4V
VCE=0V, VLX=5V
μA
μA
μA
μA
CE ‘L’ Current
-0.1
0.1
FB ’H’ Current
IFBH
IFBL
FB ’L’ Current
-0.1
REV2.0
- JAN 2013 RELEASED, SEP 2017 UPDATED -
- 3 -
A8169-020
LED BACKLIGHT DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
STEP-UP DC/DC CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
1.
FB dimming characteristic curve
VIN=3.6, LED: 3*17
2.
VFB vs. Temperature
IN= 4.0V, LED=3*7
V
TEST CIRCUIT
Circuit 1
Circuit 2
Circuit 3
Circuit 4
Caution: The value of the resistance named RLED: RLED=VFB/(ILED*n) ; VFB is the voltage of the FB pin;
ILED is the current of LED and equal to 20mA usually. n is the number of LEDs in the circuit in parallel.
REV2.0
- JAN 2013 RELEASED, SEP 2017 UPDATED -
- 4 -
A8169-020
LED BACKLIGHT DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
STEP-UP DC/DC CONVERTER
BLOCK DIAGRAM
REV2.0
- JAN 2013 RELEASED, SEP 2017 UPDATED -
- 5 -
A8169-020
LED BACKLIGHT DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
STEP-UP DC/DC CONVERTER
PACKAGE INFORMATION
Dimension in SOT-26 Package (Unit: mm)
Millimeters
Inches
Symbol
Min
Max
Min
Max
A
A1
A2
b
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
1.250
0.100
1.150
0.500
0.200
3.020
1.700
2.950
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
0.049
0.004
0.045
0.020
0.008
0.119
0.067
0.116
c
D
E
E1
e
0.950(BSC)
0.037(BSC)
e1
L
1.800
0.300
0°
2.000
0.600
8°
0.071
0.012
0°
0.079
0.024
8°
θ
REV2.0
- JAN 2013 RELEASED, SEP 2017 UPDATED -
- 6 -
A8169-020
LED BACKLIGHT DRIVER
AiT Semiconductor Inc.
www.ait-ic.com
STEP-UP DC/DC CONVERTER
IMPORTANT NOTICE
AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to
discontinue any integrated circuit product or service without notice, and advises its customers to obtain the
latest version of relevant information to verify, before placing orders, that the information being relied on is
current.
AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to
be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT
products in such applications is understood to be fully at the risk of the customer. As used herein may involve
potential risks of death, personal injury, or server property, or environmental damage. In order to minimize
risks associated with the customer's applications, the customer should provide adequate design and
operating safeguards.
AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT
warrants the performance of its products of the specifications applicable at the time of sale.
REV2.0
- JAN 2013 RELEASED, SEP 2017 UPDATED -
- 7 -
相关型号：
©2020 ICPDF网 联系我们和版权申明