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参数资料
| 型号： | A6265KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC LED CTLR HI CURRENT 16-TSSOP |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，SEPIC，降压（降压），升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 车载 |
| 频率： | 可调节/可选择 |
| 电源电压： | 6.5 V ~ 50 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 150°C |
| 其它名称： | 620-1394-6 |
A6265
Automotive High Current LED Controller
Features and Benefits
? AEC Q100 Grade 0 Automotive Qualified
? Constant current LED drive
? 6.5 to 50 V supply
? Boost or buck-boost modes
? Drives between 2 and 10 LEDs in series
? Programmable switching frequency 100 to 700 kHz
? Open LED overvoltage indication and protection
? Single and multiple LED short indication
? LED short to ground and supply protection
? PWM dimming control
? 10 μ A shutdown current including LED leakage
Applications:
? Automotive high power LED lighting systems
? Fog lights, reversing lights, daytime running lights
? Headlights
Package: 16-pin TSSOP with exposed
thermal pad (suffix LP)
Not to scale
Description
The A6265 is a DC-to-DC converter controller, providing a
programmable constant current output for driving high power
LEDs in series. Driving the LEDs in series ensures identical
currents and uniform brightness. For automotive applications,
optimum performance is achieved when driving between
2 and 10 LEDs at currents up to 1 A.
The A6265 provides a cost-effective solution using an external
logic-level MOSFET and minimum additional external
components. The maximum LED current is set with a single
external sense resistor and can be modified using a current
reference input. Direct PWM control is possible via the Enable
input, which also provides a shutdown mode.
This DC-DC converter can be configured as a ground-referenced
boost converter or as a supply-referenced boost converter
providing buck-boost capability. The buck-boost topology used
ensures that there is no leakage path through the LEDs when
in shutdown and no inrush current at power-up.
Integrated diagnostics and two fault outputs give indication of
undervoltage, chip overtemperature, output open circuit, LED
short circuit and LED undercurrent, and can be configured to
provide short to supply and short to ground protection for the
LED connections. A unique feature is the ability to detect one
or more shorted LEDs.
The device is provided in a 16-pin TSSOP package with exposed
thermal pad (suffix LP). It is lead (Pb) free, with 100% matte
tin leadframe plating.
Typical Application Diagrams
V BAT 12 V or 24 V (50 V max)
Power net
VIN
V BAT 12 V or 24 V (50 V max)
Power net
VIN
Buck Boost Mode
V BAT (min) Maximum
(V) Quantity of
LEDs
Fault
Flags
VREG
FF1
FF2
LN
LP
Boost Mode
V BAT (min) Maximum
(V) Quantity of
LEDs
Fault
Flags
VREG
FF1
FF2
LN
LP
7 10
8 11
9 13
Enable
EN
A6265
LF
SG
7 12
8 13
9 15
Enable
EN
A6265
LF
SG
V f of each LED = 3.5 V,
D(max) = 85%
IREF
CKOUT
OSC
GND
SP
SN
LA
V f of each LED = 3.5 V,
D(max) = 85%
IREF
CKOUT
OSC
GND
SP
SN
LA
A6265-DS, Rev. 6
Buck-Boost Mode
(Supply-referenced boost)
Boost Mode
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A6266 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A6266 is a boost converter controller, providing a programmable constant current output for driving high power LEDs in series. |
| A6266KLPTR-T | 功能描述:IC LED CTLR AUTO HI CURR 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| A6267 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A6267 is a DC-to-DC converter controller, providing a programmable constant current output for driving high power LEDs in series. |
| A6267KLPTR-T | 功能描述:IC LED CTLR AUTO HI CURR 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| A6268 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A6268 is a DC-to-DC converter controller, providing a programmable constant current output for driving high power LEDs in series. |
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