参数资料
型号: MAX8756ETI+T
厂商: Maxim Integrated Products
文件页数: 10/30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.)
OUT1 LOAD TRANSIENT
MAX8716/17/57 toc24
SKIP1 TRANSITION
MAX8716/17/57 toc25
SKIP1 TRANSITION
MAX8716/17/57 toc26
0
A
0
A
0
A
12V
12V
3.3V
B
0
B
0
B
3A
0
C
3.3V
C
3.3V
C
2.5A
2.5A
12V
D
0
D
0
D
0
20 μ s/div
20 μ s/div
20 μ s/div
A. CONTROL, 5V/div
B. OUT1, 50mV/div
C. I LX1 , 3A/div
D. LX1, 10V/div
A. SKIP1, 5V/div
B. LX1, 10V/div
C. OUT1, 50mV/div
D. I LX1 , 2.5A/div
A. SKIP1, 5V/div
B. LX1, 10V/div
C. OUT1, 50mV/div
D. I LX1 , 2.5A/div
SKIP1 = V CC
SKIP1 TRANSITION
MAX8716/17/57 toc27
28
30mA LOAD ON OUT1
MAX8756 NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE (FORCED-PWM MODE)
10
30mA LOAD ON OUT1
MAX8756 NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE (IDLE MODE)
0
A
24
ON1 = ON2 = V CC
12V
0
B
20
16
I BIAS
1
I BIAS
0.1
3.3V
2.5A
0
C
D
12
8
4
I IN
SKIP1 = SKIP2 = V CC
ON1 = ON2 = V CC
0.01
I IN
SKIP_ = GND
I IN
SKIP_ = REF
0
0.001
20 μ s/div
0
4
8
12
16
20
24
0
4
8
12
16
20
24
A. SKIP1, 5V/div
C. OUT1, 50mV/div
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
B. LX1, 10V/div
30mA LOAD ON OUT1
D. I LX1 , 2.5A/div
2.0
1.8
1.6
MAX8756 OUT2 IDLE MODE CURRENT
vs. INPUT VOLTAGE
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
SKIP2 = GND
SKIP2 = REF
0
4
8
12
16
20
24
INPUT VOLTAGE (V)
10
______________________________________________________________________________________
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