参数资料
型号: MAX5071AASA+
厂商: Maxim Integrated Products
文件页数: 9/22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: 100
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: 管件
High-Performance, Single-Ended, Current-Mode
PWM Controllers
Typical Operating Characteristics (continued)
(V CC = 15V, T A = +25°C, unless otherwise noted.)
SUPPLY CURRENT (I CC )
MAX5070A/MAX5071A
OUT SOURCE AND SINK CURRENTS
MAX5070 toc20
V CC = 15V
10
vs. OSCILLATOR FREQUENCY (C T = 100pF)
100
MAXIMUM DUTY CYCLE vs. R T
C OUT = 10nF
V OUT
10V/div
9
8
7
6
5
T A = +85 ° C
T A = +125 ° C
T A = +25 ° C
90
80
70
60
50
C T = 1nF
C T = 560pF
C T = 220pF
C T = 100pF
I OUT
2A/div
4
3
2
T A = -40 ° C
40
30
20
20Ons/div
20 120 220 320 420 520 620 720 820 920 1020
100
1k
10k
100k
FREQUENCY (kHz)
R T ( ? )
Pin Descriptions
MAX5070A/MAX5070B
PIN
1
2
3
4
5
6
7
8
NAME
COMP
FB
CS
R T /C T
GND
OUT
V CC
VREF
FUNCTION
Error-Amplifier Output. COMP can be used for soft-start.
Error-Amplifier Inverting Input
Input to the PWM Comparator and Overcurrent Protection Comparator. The current-sense signal is
compared to a signal proportional to the error-amplifier output voltage.
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 MAX5070. 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.
_______________________________________________________________________________________
9
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MAX5071AASA+ 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
MAX5071AASA+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
MAX5071AASA-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
MAX5071AAUA 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
MAX5071AAUA+ 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