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| 型号： | A4401KL-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC QUASI FLYBACK CONVERTER 8SOIC |
| 标准包装： | 98 |
| 显示器类型： | 真空荧光 (VF) |
| 电流 - 电源： | 2.3mA |
| 电源电压： | 7 V ~ 40 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
A4401
Automotive Quasi-Resonant Flyback Control IC
Features and Benefits
? Multiple output regulator
? 7 to 40 V input supply
? Low EMI conducted and radiated emissions
? Adaptive quasi-resonant turn on/off control
? Minimal number of external components
? Enable input which can be driven with respect to the
battery voltage
Package: 8-pin narrow SOIC (suffix L)
Description
This device provides all the necessary control functions to
provide the power rails for driving a vacuum fluorescent
display (VFD) using minimal external components. The power
supply is based on a quasi-resonant, discontinuous flyback
converter, operating near the critical conduction boundary. A
novel adaptive turn-on control scheme is used to optimize the
turn-on and turn-off phase of the MOSFET, to reduce EMI
emissions while minimizing switching losses.
The converter is self-oscillating, operating at switching
frequencies depending on the input voltage, load, and external
components. An onboard linear regulator that is powered
directly from the battery provides the housekeeping supply,
avoiding the need for complex bias supplies.
Internal diagnostics provide comprehensive protection
against overloads, input undervoltage, and overtemperature
conditions.
The A4401 is supplied in an 8-pin narrow SOIC package
(suffix L), which is lead (Pb) free, with 100% matte-tin
leadframe plating.
Approximate Scale 1:1
Typical Application
+V BAT
VIN
LX
VFD
A4401
GD
0V
A4401-DS, Rev. 2
ECU
EN
GND
COMP
ISS
VA
0V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A4401KLTR-T | 功能描述:IC QUASI FLYBACK CONVERTER 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 显示器驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 显示器类型:真空荧光 (VF) 配置:5 x 7（矩阵） 接口:串行 数字或字符:- 电流 - 电源:3.5mA 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 供应商设备封装:16-QSOP 包装:带卷 (TR) |
| A4402 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Constant On-Time Buck Converter with Integrated Linear Regulator |
| A4402_1 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Constant On-Time Buck Converter with Integrated Linear Regulator |
| A4402_12 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A4402 is a dual-output regulator, combining in a single package a constant on-time buck regulator and a linear regulator (LDO)a??each with adjustable output voltages. |
| A4402ELPTR-T | 功能描述:IC REG DL BUCK/LINEAR 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
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