参数资料
型号: MAX5070AASA+T
厂商: Maxim Integrated Products
文件页数: 10/22页
文件大小: 0K
描述: IC REG CTRLR FLYBK DIV ISO 8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
占空比: 97.5%
电源电压: 10.8 V ~ 25 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
High-Performance, Single-Ended, Current-Mode
PWM Controllers
Pin Descriptions (continued)
MAX5071A/MAX5071B/MAX5071C
PIN
MAX5071A/
MAX5071B
MAX5071C
NAME
FUNCTION
COMP is level-shifted and connected to the inverting input of the PWM comparator. Pull
1
1
COMP
up COMP to VREF through a resistor and connect an optocoupler from COMP to GND for
proper operation.
2
SYNC
Bidirectional Synchronization Input. When synchronizing with other
MAX5071A/MAX5071Bs, the higher frequency part synchronizes all other devices.
ADV_CLK is an 85ns clock output pulse preceding the rising edge of OUT (see Figure 4).
2
ADV_CLK
Use the pulse to drive the secondary-side synchronous rectifiers through a pulse
transformer or an optocoupler (see Figure 8).
3
4
5
6
7
8
3
4
5
6
7
8
CS
R T /C T
GND
OUT
V CC
V REF
Input to the PWM Comparator and Overcurrent Protection Comparator. The current-
sense signal is compared to the voltage at COMP.
Timing Resistor and Capacitor Connection. A resistor R T from R T /C T to VREF and
capacitor C T from R T /C T to GND set the oscillator frequency.
Power-Supply Ground. Place the V CC and VREF bypass capacitors close to the IC to
minimize ground loops.
MOSFET Driver Output. OUT connects to the gate of the external n-channel MOSFET.
Power-Supply Input for MAX5071. Bypass V CC to GND with a 0.1μF ceramic capacitor or
a parallel combination of a 0.1μF and a higher value ceramic capacitor.
5V Reference Output. Bypass VREF to GND with a 0.1μF ceramic capacitor or a parallel
combination of a 0.1μF and a higher value ceramic capacitor.
10
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MAX5070AAUA 功能描述:电流型 PWM 控制器 Single-Ended 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
MAX5070AAUA+ 功能描述:电流型 PWM 控制器 Single-Ended 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
MAX5070AAUA+T 功能描述:电流型 PWM 控制器 Single-Ended 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
MAX5070AAUA-T 功能描述:电流型 PWM 控制器 Single-Ended 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
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