参数资料
| 型号： | MAX256ASA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC DRVR H-BRIDGE 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 半桥 |
| 输入类型： | 非反相 |
| 输出数： | 2 |
| 导通状态电阻： | 500 毫欧 |
| 电流 - 输出 / 通道： | 600mA |
| 电流 - 峰值输出： | 1A |
| 电源电压： | 3 V ~ 5.5 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 Width）裸露焊盘 |
| 供应商设备封装： | 8-SOICN 裸露焊盘 |
| 包装： | 带卷 (TR) |
ATION
EVALU
AVAILA
19-3748; Rev 1; 3/12
KIT
BLE
3W Primary-Side Transformer H-Bridge Driver
for Isolated Supplies
General Description
The MAX256 is an integrated primary-side controller
and H-bridge driver for isolated power-supply circuits.
The device contains an on-board oscillator, protection
circuitry and internal FET drivers to provide up to 3W of
power to the primary winding of a transformer. The
MAX256 can be operated using the internal program-
mable oscillator or can be driven by an external clock
for improved EMI performance. Regardless of the clock
source being used, an internal flip-flop stage guaran-
tees a fixed 50% duty cycle to prevent DC current flow
in the transformer.
The MAX256 operates from a single-supply voltage of
+5V or +3.3V, and includes undervoltage lockout for
controlled startup. The device prevents cross-conduc-
tion of the H-bridge MOSFETs by implementing break-
before-make switching. Thermal shutdown circuitry
provides additional protection against damage due to
overtemperature conditions.
Features
o Provides Up to 3W to the Transformer in Isolated
Power Supplies
o Single Supply +5V or +3.3V Operation
o Internal Resistor-Programmable Oscillator Mode
o External Clock Mode with Watchdog
o Disable Mode
o Undervoltage Lockout
o Thermal Shutdown
Ordering Information
The MAX256 is available in the 8-pin thermally-enhanced
SO package. The device is specified for the automotive
(-40°C to +125°C) temperature range.
PART
MAX256ASA+
MAX256ASA/V+T
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
8 SO-EP*
8 SO-EP*
Applications
*EP = Exposed paddle.
*/V denotes an automotive qualified part.
Isolated Power Supplies
Industrial Process
Control
Isolated Communications
Links
Medical Equipment
Telecommunications
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Application Circuit
+5V
Pin Configuration
4.7 μ F
470nF
MODE
MAX256
ST1
1:2.6CT
+5V ISOLATED
0.1 μ F
CK_RS 1
V CC 2
+
MAX256
8
7
ST1
GND
47k ?
CK_RS
ST2
V CC 3
MODE 4
*EP
6
5
GND
ST2
GND
SO-EP
*CONNECT EXPOSED PAD TO GND.
+5V TO ISOLATED +5V TYPICAL APPLICATION
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX256EVKIT | 功能描述:功率驱动器IC 3W Primary-Side Transformer H-Bridge Driver for Isolated Supplies RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX256EVKIT+ | 功能描述:功率驱动器IC MAX256 Evaluation Kit RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX-256-X | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Optoelectronic |
| MAX2572EGM | 制造商:Maxim Integrated Products 功能描述:HIGHLY INTEGRATED QUADRATURE TRANSMITTERS - Rail/Tube |
| MAX2582ELM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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