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| 型号： | MAX8717ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/30页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR PWR SUP 28-TQFN |
| 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： | 3.3V，5V，1 V ~ 5.5 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（5x5） |
| 包装： | 带卷 (TR) |
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Interleaved High-Efficiency, Dual Power-Supply
Controllers for Notebook Computers
ABSOLUTE MAXIMUM RATINGS (Note 1)
V DD , V CC , CSL1, CSH1, CSL2, CSH2 to AGND ......-0.3V to +6V
ON1, ON2, SKIP1 , SKIP2 , PGOOD1,
PGOOD2 to AGND ...............................................-0.3V to +6V
FB1, FB2, ILIM1, ILIM2, FSEL to AGND ...................-0.3V to +6V
REF to AGND..............................................-0.3V to (V CC + 0.3V)
BST1, BST2 to AGND .............................................-0.3V to +36V
LX1 to BST1..............................................................-6V to +0.3V
LX2 to BST2..............................................................-6V to +0.3V
DH1 to LX1 ..............................................-0.3V to (V BST1 + 0.3V)
DH2 to LX2 ..............................................-0.3V to (V BST2 + 0.3V)
DL1, DL2 to PGND .....................................-0.3V to (V DD + 0.3V)
REF Short Circuit to AGND.........................................Continuous
REF Current ......................................................................+10mA
Continuous Power Dissipation (T A = +70°C)
24-Pin Thin QFN 4mm x 4mm (derate 20.8mW/°C
above +70°C)..........................................................1666.7mW
28-Pin Thin QFN 5mm x 5mm (derate 21.3mW/°C
above +70°C)..........................................................1702.1mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
AGND to PGND .....................................................-0.3V to +0.3V
Note 1: For the 24-pin TQFN version, AGND and PGND refer to a single pin designated GND.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V IN = 12V, FSEL = REF, SKIP_ = 0, V ON_ = V ILIM_ = V CC = V DD = 5V , T A = 0°C to +85°C , unless otherwise noted.
Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT SUPPLIES
Input Voltage Range
V IN
V BIAS
V CC , V DD
4.5
26
5.5
V
V CC Undervoltage-Lockout
Threshold
Quiescent Supply Current (V CC )
V UVLO
I CC
200mV typical
hysteresis
CSL_ and FB_ forced
above their regulation
V CC rising
V CC falling
MAX8716, MAX8717,
MAX8757
3.9
3.7
4.15
3.95
0.8
4.4
4.2
1.3
V
mA
points
MAX8756
1
1.8
Quiescent Supply Current (V DD )
Shutdown Supply Current (V CC )
Shutdown Supply Current (V DD )
I DD
CSL_ and FB_ forced above their regulation
points
ON1 = ON2 = GND
ON1 = ON2 = GND
<1
<1
<1
5
5
5
μA
μA
μA
MAIN SMPS CONTROLLERS
PWM1 Output Voltage in
Fixed Mode
PWM2 Output Voltage in
Fixed Mode
V OUT1
V OUT2
V IN = 6V to 26V,
SKIP1 = V CC ,
zero to full load
V IN = 6V to 26V,
SKIP2 = V CC ,
zero to full load
MAX8716, MAX8717,
MAX8757
MAX8756
MAX8716, MAX8717,
MAX8757
MAX8756
3.265
1.484
4.94
1.778
3.30
1.50
5.00
1.800
3.365
1.530
5.09
1.832
V
V
Feedback Voltage in Adjustable
Mode (Note 2)
Output-Voltage-Adjust Range
V FB_
V IN = 6V to 26V, FB1 or FB2,
duty factor = 20% to 80%
V IN = 6V to 26V, FB1 or FB2,
duty factor = 50%
MAX8716, MAX8717,
MAX8757
Either SMPS
0.990
0.995
1.0
1.005
1.005
1.020
1.015
5.5
V
V
MAX8756
1.0
2.3
2
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