- 您现在的位置：买卖IC网 > Datasheet目录307 > A8512ELBTR-T (Allegro Microsystems Inc)IC LED DVR WHT/RGB BKLGT 24SOIC Datasheet资料下载
参数资料
| 型号： | A8512ELBTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR WHT/RGB BKLGT 24SOIC |
| 标准包装： | 3,000 |
| 拓扑： | 高端，低端，PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 300kHz ~ 1MHz |
| 电源电压： | 8 V ~ 24 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
A8512
LED Backlight Driver for LCD Monitors and Televisions
Characteristic Performance
95
94
93
92
91
90
89
88
87
Efficiency versus Battery Voltage
for Various LED Configurations
FET = IRFR120N, V IN = 12 V, f SW = 500 kHz
L = 22 μ H, Load = W92050C LEDs at 112 mA per string
95
94
93
92
91
90
89
88
87
Efficiency versus Battery Voltage
for Various LED Configurations
FET = FQB17N08L, V IN = 12 V, f SW = 500 kHz
L = 22 μ H, Load = W92050C LEDs at 112 mA per strin
86
85
84
83
82
81
80
3 strings 18 LEDs per string
V OUT ≈ 60 V, P OUT ≈ 20.2 W
2 strings 18 LEDs per string
V OUT ≈ 60 V, P OUT ≈ 13.4 W
3 strings 14 LEDs per string
V OUT ≈ 47 V, P OUT ≈ 15.8 W
2 strings 14 LEDs per string
V OUT ≈ 47 V, P OUT ≈ 10.5 W
86
85
84
83
82
81
80
3 strings 18 LEDs per string
V OUT ≈ 60 V, P OUT ≈ 20.2 W
2 strings 18 LEDs per string
V OUT ≈ 60 V, P OUT ≈ 13.4 W
3 strings 14 LEDs per string
V OUT ≈ 47 V, P OUT ≈ 15.8 W
2 strings 14 LEDs per string
V OUT ≈ 47 V, P OUT ≈ 10.5 W
10
11
12
13
14
15
16
17
18
19
20
21
22
23
10
11
12
13
14
15
16
17
18
19
20
21
22
V BAT (V)
Efficiency of the boost converter stage is affected by the selection of
power MOSFET, switching frequency, input/output voltages, and output
power. The external MOSFET used for the above chart is the IRFR120N,
which has a relatively high R DS(on) = 0.21 Ω . This causes higher
conduction loss, especially at lower input voltage.
V BAT (V)
The power MOSFET is replaced with FQB17N08L, which has a lower
R DS(on) = 0.115 Ω . This results in less conduction loss at lower input
voltage, however, the switching loss becomes more significant at higher
input voltage.
Switching Frequency versus FSET Resistor Value
f SW (MHz) = 52 / R FSET (k Ω )
1100
1000
900
800
700
600
500
400
300
50
60
70
80
90 100 110
120
130
140
150
R FSET (k Ω )
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
7
相关PDF资料 |
PDF描述 |
|---|---|
| A8513KLPTR-T | IC LED DRVR AUTO BCKLGHT 16TSSOP |
| A8514KLPTR-T | IC LED DVR WHT 4X80MA 16-ETSSOP |
| A8515GLPTR-T | IC LED DVR WHT/RGB BKLGT 16TSSOP |
| A8516ELPTR-T | IC LED DVR BACKLIGHT MON 24TSSOP |
| A8740EEETR-T | IC PHOTOFLASH CAP CHARGER 8DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A8512ELPTR-T | 功能描述:IC LED DVR WHT/RGB BKLGT 24TSSOP 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 |
| A8513 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver |
| A8513KLPTR-1-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver |
| A8513KLPTR-2-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver |
| A8513KLPTR-3-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver |
发布紧急采购，3分钟左右您将得到回复。