参数资料
| 型号： | MAX8756ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/30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) |
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Interleaved High-Efficiency, Dual Power-Supply
Controllers for Notebook Computers
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V IN = 12V, FSEL = REF, SKIP_ = 0, V ON_ = V ILIM_ = V CC = V DD = 5V, T A = -40°C to +85°C, unless otherwise
noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
FSEL = GND
MAX8716, MAX8717,
MAX8757
MAX8756
170
215
230
285
Operating Frequency
f OSC
FSEL = REF (Note 3)
FSEL = V CC
MAX8716, MAX8717,
MAX8757
270
425
330
575
kHz
FSEL = GND
MAX8756
340
97.5
460
Maximum Duty Factor
D MAX
FSEL = REF (Note 3)
97.5
%
FSEL = V CC
97.5
Minimum On-Time
t ON(MIN)
(Note 4)
200
ns
CURRENT LIMIT
ILIM_ Adjustment Range
0.5
V REF
V
Current-Limit Threshold (Fixed)
V LIMIT _
V CSH _ - V CSL _, ILIM_ = V CC (Note 3)
44
56
mV
Current-Limit Threshold
(Adjustable)
V LIMIT _
V CSH _ - V CSL _
V ILIM _ = 2.00V
V ILIM _ = 1.00V
188
93
212
107
mV
REFERENCE (REF)
Reference Voltage
V REF
V CC = 4.5V to 5.5V, I REF = 0
1.98
2.02
V
FAULT DETECTION
Output Overvoltage Trip Threshold
Output Undervoltage-Protection
Trip Threshold
PGOOD_ Lower Trip Threshold
PGOOD_ Output Low Voltage
MAX8716/MAX8717/MAX8756 only
With respect to error-comparator threshold
With respect to error-comparator threshold,
hysteresis = 1%
I SINK = 4mA
11
65
-12.5
19
75
-8.0
0.4
%
%
%
V
GATE DRIVERS
DH_ Gate-Driver On-Resistance
DL_ Gate-Driver On-Resistance
(Note 5)
R DH
R DL
BST_ - LX_ forced to 5V (Note 5)
DL_, high state
DL_, low state
5
5
3
Ω
Ω
INPUTS AND OUTPUTS
ON_ Input Voltage
Rising edge, hysteresis = 225mV
1.2
2.2
V
Tri-Level Input Logic
SKIP1 , SKIP2 , FSEL
High
REF
V CC -
0.2
1.7
2.3
V
GND 0.5
Note 2: When the inductor is in continuous conduction, the output voltage will have a DC regulation level lower than the error-com-
parator threshold by 50% of the ripple. In discontinuous conduction, the output voltage will have a DC regulation level higher
than the error-comparator threshold by 50% of the ripple.
Note 3: Default setting for the MAX8716.
Note 4: Specifications are guaranteed by design, not production tested.
Note 5: Production testing limitations due to package handling require relaxed maximum on-resistance specifications for the thin QFN
package.
Note 6: Specifications from 0°C to -40°C are guaranteed by design, not production tested.
6
_______________________________________________________________________________________
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| MAX8758ETG+T | 功能描述:LCD 驱动器 Step-Up Regulator RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX8758ETJ | 功能描述:LCD 驱动器 Step-Up Regulator RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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