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MAX1864TEEE 电缆调制解调器供应元器件配套！

价格

起批量

￥10.20

1-99PCS

￥10.10

100-999PCS

￥10.00

>=1000PCS

商品货号

2711958

物流

至

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标准价 :: ¥10.00 - ¥10.20

支付方式

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订购数量 :

起售量 (PCS)	标准价	采购量	是否有货
1	¥10.20	- +	有货
≥1	¥10.20
≥100	¥10.10
≥1000	¥10.00

总价

￥10.20

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￥5,000.00

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商品详情包装及参数评价售后保障

用于xDSL/电缆调制解调器的三/五路输出电源

概述

The MAX1864/MAX1865 power-supply controllers are designed to address cost-conscious applications such as cable modem Consumer Premise Equipment (CPE), xDSL CPE, and set-top boxes. Operating off a low-cost, unregulated DC supply (such as a wall adapter output), the MAX1864 generates three positive outputs, and the MAX1865 generates four positive outputs and one negative output to provide a cost-effective system power supply.

The MAX1864 includes a current-mode synchronous step-down controller and two positive regulator gain blocks. The MAX1865 has one additional positive gain block and one negative regulator gain block. The main synchronous step-down controller generates a high-current output that is preset to 3.3V or adjustable from 1.236V to 0.8 x VIN with an external resistive-divider. The 100kHz/200kHz operating frequency allows the use of low-cost aluminum-electrolytic capacitors and low-cost power magnetics. Additionally, the MAX1864/MAX1865 step-down controllers sense the voltage across the low-side MOSFET's on-resistance to efficiently provide the current-limit signal, eliminating the need for costly current-sense resistors.

The MAX1864/MAX1865 generate additional supply rails at low cost. The positive regulator gain blocks use an external PNP pass transistor to generate low-voltage rails directly from the main step-down converter (such as 2.5V or 1.8V from the main 3.3V output) or higher voltages using coupled windings from the step-down converter (such as 5V, 12V, or 15V). The MAX1865's negative gain block uses an external NPN pass transistor in conjunction with a coupled winding to generate -5V, -12V, or -15V.

All output voltages are externally adjustable, providing maximum flexibility. Additionally, the MAX1864/MAX1865 feature soft-start for the step-down converter and all the positive linear regulators, and have a power-good output that monitors all of the output voltages.

关键特性

4.5V to 28V Input Voltage Range
Master DC-DC Step-Down Converter
- Preset 3.3V or Adjustable (1.236V to 0.8 x VIN) Output Voltage
- Fixed-Frequency (100kHz/200kHz) PWM Controller
- No Current-Sense Resistor
- Adjustable Current Limit
- 95% Efficient
Two (MAX1864)/Four (MAX1865) Analog Gain Blocks
- Positive Analog Blocks Drive Low-Cost PNP Pass Transistors to Build Positive Linear Regulators
- Negative Analog Block (MAX1865) Drives a Low-Cost NPN Pass Transistor to Build a Negative Linear Regulator
Power-Good Indicator
Soft-Start Ramp for All Positive Regulators
应用/使用
- 机顶盒
- 无线本地环路(WLL)
- xDSL、电缆和ISDN调制解调器

规格参数
型号	MAX1864TEEE	品牌	MAXIM
类型	其他IC	封装	SSOP16
批号	15+

包装参数
体积(m²)
产品重量(kg)

与商品描述相符

非常不满
不满意
一般
满意
非常满意

联系方式

注意：1 . 使用电话联系可有效保证您的号码隐私不被泄露
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3 . 成交后在会员中心确认可获得积分

联系人：黄冬梅

电话：13502856648

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MAX1864TEEE 电缆调制解调器 供应元器件配套！

用于xDSL/电缆调制解调器的三/五路输出电源

概述

关键特性

应用/使用

MAX1864TEEE 电缆调制解调器供应元器件配套！