参数资料
型号: MAX8756ETI+T
厂商: Maxim Integrated Products
文件页数: 9/30页
文件大小: 0K
描述: IC CNTRL DUAL PS 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 控制器,笔记本电脑电源系统
输入电压: 4 V ~ 26 V
输出数: 2
输出电压: 1.5V,1.8V,1 V ~ 2.3 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(4x4)
包装: 带卷 (TR)
Interleaved High-Efficiency, Dual Power-Supply
Controllers for Notebook Computers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, MAX8717, V IN = 12V, V DD = V CC = 5V, SKIP_ = GND, FSEL = REF, T A = +25°C, unless otherwise noted.)
STARTUP WAVEFORMS
MAX8716/17/57 toc18
SHUTDOWN WAVEFORMS
MAX8716/17/57 toc19
STARTUP WAVEFORMS
MAX8716/17/57 toc20
12V
0
0
2V
0
A
B
C
D
E
5V
0
5V
5V
2V
5V
A
B
C
D
3.3V
0
0
0
5V
A
B
C
0
F
0
0
400 μ s/div
0
0
1ms/div
E
F
0
0
1ms/div
D
E
A. LX2, 20V/div
B. ON2, 10V/div
C. PGOOD2, 10V/div
D. REF, 2V/div
E. OUT2, 2V/div
F. I LX2 , 2.5AV/div
A. DL2, 10V/div
B. ON2, 10V/div
C. PGOOD2, 10V/div
D. REF, 2V/div
E. OUT2, 2V/div
F. I LX2 , 2.5AV/div
A. ON1/ON2, 5V/div
B. PGOOD1, 10V/div
C. PGOOD2, 10V/div
D. OUT2, 2V/div
E. OUT1, 2V/div
1.0 Ω LOAD ON OUT2
1.0k Ω LOAD ON OUT2
SKIP2 = GND
V CC UVLO WAVEFORMS
MAX8716/17/57 toc21
STEADY-STATE WAVEFORMS
MAX8716/17/57 toc22
DROPOUT WAVEFORMS
MAX8716/17/57 toc23
5V
5V
A
5V
12V
A
4.9V
5V
A
B
5V
B
0
B
C
0
5V
C
5V
C
0
D
3.3V
D
3.3V
D
12V
5V
0
4ms/div
E
0
2 μ s/div
E
0
2 μ s/div
E
A. V CC , 2V/div
B. OUT2, 2V/div
D. DL2, 5V/div
E. I LX2 , 2.5AV/div
A. OUT2, 50mV/div
B. LX2, 10V/div
D. OUT1, 50mV/div
E. LX1, 10V/div
A. OUT2, 50mV/div
B. LX2, 10V/div
D. OUT1, 50mV/div
E. LX1, 10V/div
C. PGOOD2, 5V/div
100 Ω LOAD ON OUT2
SKIP2 = V CC
C. V IN , 50mV/div
1.0A LOAD ON OUT1, 1.0A LOAD ON OUT2
SKIP1 = V CC , SKIP2 = V CC
C. V IN , 50mV/div
1.0A LOAD ON OUT1, 1.0A LOAD ON OUT2
SKIP1 = V CC , SKIP2 = V CC
_______________________________________________________________________________________
9
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