- 您现在的位置：买卖IC网 > PDF目录1842 > MAX5022EUA+ (Maxim Integrated Products)IC REG CTRLR FLYBK ISO PWM 8UMAX PDF资料下载
参数资料
| 型号： | MAX5022EUA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/11页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK ISO PWM 8UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 290kHz |
| 占空比： | 76% |
| 电源电压： | 11 V ~ 28 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
Current-Mode PWM Controllers for Isolated
Power Supplies
T1
R S
C2
V OUT
C3
-36VDC TO -72VDC IN
Figure 4. -48VDC Input to +5V Output
V CC
OPTO
GND
MAX5022
V IN
NDRV
CS
WARNING! DANGEROUS AND LETHAL VOLTAGES
ARE PRESENT IN OFF-LINE CIRCUITS! USE
EXTREME CAUTION IN THE CONSTRUCTION,
TESTING, AND USE OF OFF-LINE CIRCUITS.
Isolated Telecom Power Supply
Figure 4 shows a -48VDC telecom power supply capa-
ble of generating an isolated +5V output.
Layout Recommendations
All printed circuit board traces carrying switching cur-
rents must be kept as short as possible, and the cur-
rent loops they form must be minimized. The pins of the
SOT23 package have been placed to allow simple
interfacing to the external MOSFET. The order of these
pins directly corresponds to the order of a TO-220 or
similar package MOSFET.
For universal AC input design all applicable safety reg-
ulations must be followed. Off-line power supplies may
require UL, VDE, and other similar agency approvals.
These agencies can be contacted for the latest layout
and component rules.
Typically there are two sources of noise emission in a
switching power supply: high di/dt loops and high dv/dt
surfaces. For example, traces that carry the drain cur-
rent often form high di/dt loops. Similarly the heatsink of
the MOSFET presents a dv/dt source, thus the surface
area of the heatsink must be minimized as much
as possible.
To achieve best performance, a star ground connection
is recommended to avoid ground loops. For example,
the ground returns for the power-line input filter, power
MOSFET switch, and sense resistor should be routed
separately through wide copper traces to meet at a sin-
gle system ground connection.
Chip Information
TRANSISTOR COUNT: 519
PROCESS: BiCMOS
8
_______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5023LASA+ | IC REG LDO 5V .15A 8-SOIC |
| MAX5026EUT+T | IC REG BOOST ADJ 40MA SOT23-6 |
| MAX5033BASA+T | IC REG BUCK 5V 0.5A 8SOIC |
| MAX5035CASA+T | IC REG BUCK 12V 1A 8SOIC |
| MAX5038EAI33+ | IC REG CTRLR BUCK PWM CM 28-SSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5022EUA+ | 功能描述:电流型 PWM 控制器 for Isolated Power Supplies RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5022EUA+T | 功能描述:电流型 PWM 控制器 for Isolated Power Supplies RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5022EUA-T | 功能描述:电流型 PWM 控制器 for Isolated Power Supplies RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX5022EUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX5022EUT+ | 制造商:Maxim Integrated Products 功能描述:CURRENT MODE PWM CNTRLR 250MA 6PIN SOT-23 - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。