参数资料
型号: MAX8744AETJ+T
厂商: Maxim Integrated Products
文件页数: 11/36页
文件大小: 0K
描述: IC CNTRLR PWR SUP QUAD 32TQFN
标准包装: 2,500
应用: 控制器,笔记本电脑电源系统
输入电压: 6 V ~ 26 V
输出数: 4
输出电压: 3.3V,5V,1 V ~ 26 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = 12V, SKIP = GND, FSEL = REF, T A = +25°C, unless otherwise noted.)
SMPS DELAYED STARTUP SEQUENCE
SMPS DELAYED STARTUP SEQUENCE
SOFT-START WAVEFORM
MAX8744A toc16
(ON3 = REF)
MAX8744A toc17
(ON5 = REF)
MAX8744A toc18
3.3V
0
5V
0
0
A
B
C
3.3V
0
5V
0
0
A
B
C
3.3V
0
5V
0
0
A
B
C
12V
3.3V
3.3V
0
5A
0
D
E
0
0
D
E
0
0
D
E
400 μ s/div
1ms/div
1ms/div
A. ON3 AND ON5, 5V/div
B. 5V OUTPUT (V OUT5 ), 5V/div
C. PGOOD5, 5V/div
D. AUX LDO OUTPUT
(V OUTA ), 10V/div
E. L5 INDUCTOR CURRENT,
5A/div
A. ON5, 5V/div
B. 5V OUTPUT (V OUT5 ), 5V/div
C. PGOOD5, 5V/div
ON3 = REF
D. 3.3V OUTPUT (V OUT3 ),
5V/div
E. PGOOD3, 5V/div
A. ON3, 5V/div
B. 5V OUTPUT (V OUT5 ), 5V/div
C. PGOOD5, 5V/div
ON5 = REF
D. 3.3V OUTPUT (V OUT3 ),
5V/div
E. PGOOD3, 5V/div
3.3V
SMPS SHUTDOWN WAVEFORM
MAX8744A toc19
5A
OUT5 LOAD TRANSIENT
MAX8744A toc20
3A
OUT3 LOAD TRANSIENT
MAX8744A toc21
5V
0
0
3.3V
0
5V
0
A
B
C
D
E
1A
5.1V
5.0V
4.9V
5A
1A
12V
A
B
C
D
1A
3.35V
3.30V
3.25V
3A
1A
12V
A
B
C
D
0
0
1ms/div
20 μ s/div
20 μ s/div
A. SHDN, 5V/div
B. 5V OUTPUT (V OUT5 ), 5V/div
C. PGOOD5, 5V/div
D. 3.3V OUTPUT (V OUT3 ),
5V/div
E. PGOOD3, 5V/div
A. I OUT5 = 1A TO 5A, 5A/div
B. V OUT5 , 50mV/div
C. INDUCTOR CURRENT,
5A/div
D. LX5, 10V/div
A. I OUT3 = 1A TO 3A, 5A/div
B. V OUT3 , 50mV/div
C. INDUCTOR CURRENT,
5A/div
D. LX3, 10V/div
NO LOAD
______________________________________________________________________________________
11
相关PDF资料
PDF描述
MAX8745ETJ+ IC CNTRLR PWR SUP QUAD 32TQFN
MAX8751ETJ+T IC CNTRLR CCFL INV 32-TQFN
MAX8752ETA+T IC DC-DC CONV TFT LCD 8-TDFN
MAX8753ETI+T IC DC-DC CONV TFT LCD 28TQFN
MAX8756ETI+T IC CNTRL DUAL PS 28-TQFN
相关代理商/技术参数
参数描述
MAX8744AEVKIT+ 制造商:Maxim Integrated Products 功能描述:MAX8744A EVAL KIT - Rail/Tube
MAX8744ETJ+ 功能描述:电流型 PWM 控制器 Quad-Out Main Power Supply Controller 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
MAX8744ETJ+T 功能描述:电流和电力监控器、调节器 Quad-Out Main Power Supply Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel
MAX8744EVKIT 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY QUAD OUTPUT MAIN - Rail/Tube
MAX8744EVKIT+ 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY QUAD OUTPUT MAIN - Rail/Tube