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MAX15046CAEE+

更新时间： 2024-11-14 19:47:11
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理开关光电二极管输出元件
页数 文件大小 规格书
23页 2142K
描述
Switching Controller, Voltage-mode, 25A, 1100kHz Switching Freq-Max, BICMOS, PDSO16, QSOP-16

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MAX15046CAEE+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：HLSSOP, SSOP16,.25
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：5.6
其他特性：OUTPUT IS ADJUSTABLE FROM 0.6V TO 34V; ALSO OPERATES WITH 4.5V TO 5.5V SUPPLY模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：40 V最小输入电压：4.5 V
标称输入电压：24 VJESD-30 代码：R-PDSO-G16
长度：4.89 mm湿度敏感等级：1
功能数量：1端子数量：16
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：25 A封装主体材料：PLASTIC/EPOXY
封装代码：HLSSOP封装等效代码：SSOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：1.65 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BUCK
最大切换频率：1100 kHz技术：BICMOS
温度等级：AUTOMOTIVE端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

MAX15046CAEE+ 数据手册

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EVALUATION KIT AVAILABLE  
MAX15046  
40V, High-Performance, Synchronous  
Buck Controller  
General Description  
Features  
The MAX15046 synchronous step-down controller oper-  
ates from a 4.5V to 40V input voltage range and gener-  
ates an adjustable output voltage from 85% of the input  
voltage down to 0.6V, supporting loads up to 25A. The  
device allows monotonic startup into a prebiased bus  
without discharging the output and features adaptive  
internal digital soft-start.  
● Input Voltage Ranges from 4.5V to 40V or 5V ±10%  
● Adjustable Outputs from 0.85 x V Down to 0.6V  
IN  
● Adjustable Switching Frequency (100kHz to 1MHz)  
with ±10% (1MHz) Accuracy  
● Adaptive Internal Digital Soft-Start  
● Up to 25A Output Capability  
The MAX15046 offers the ability to adjust the switching fre-  
quency from 100kHz to 1MHz with an external resistor. The  
MAX15046’s adaptive synchronous rectification eliminates  
the need for an external freewheeling Schottky diode.  
The device also utilizes the external low-side MOSFET’s  
on-resistance as a current-sense element, eliminating the  
need for a current-sense resistor. This protects the DC-DC  
components from damage during output overloaded con-  
ditions or output short-circuit faults without requiring a  
current-sense resistor. Hiccup-mode current limit reduc-  
es power dissipation during short-circuit conditions. The  
MAX15046 includes a power-good output and an enable  
input with precise turn-on/turn-off threshold, which can be  
used for input supply monitoring and power sequencing.  
● Cycle-by-Cycle Valley-Mode Current Limit with  
Adjustable, Temperature-Compensated Threshold  
(30mV to 300mV)  
● Monotonic Startup into Prebiased Output  
● ±1% Accurate Voltage Reference  
● 90% Maximum Duty Cycle (MAX15046C)  
● 3A Peak Gate Drivers  
● Hiccup-Mode Short-Circuit Protection  
● Overtemperature Shutdown  
● Power-Good (PGOOD) Output and Enable Input  
(EN) with ±5% Accurate Threshold  
● Thermally Enhanced 16-Pin QSOP Package  
Additional protection features include sink-mode current  
limit and thermal shutdown. Sink-mode current limit pre-  
vents reverse inductor current from reaching dangerous  
levels when the device is sinking current from the output.  
Applications  
●
Industrial Power Supplies (PLC, Industrial Computers,  
Fieldbus Components, Fieldbus Couplers)  
● Telecom Power Supplies  
● Base Stations  
The MAX15046A/MAX15046B feature soft-stop opera-  
tion. Soft-stop operation is disabled in the MAX15046C.  
The MAX15046 is available in a 16-pin QSOP or 16-pin  
QSOP-EP package and operates over the -40°C to  
+125°C temperature range.  
Ordering Information and Pin Configurations appear at end  
of data sheet.  
Typical Operating Circuit  
4.5V TO 40V  
V
IN  
C1  
CSP  
IN  
Q1  
MAX15046  
DH  
LX  
V
CC  
L1  
0.6V TO 0.85V x V  
IN  
PGOOD  
V
OUT  
ON  
C2  
C3  
OFF  
EN  
BST  
DL  
Q2  
LIM  
D1  
R4  
COMP  
FB  
DRV  
PGND  
GND  
C4  
C5  
R3  
C7  
R5  
C6  
RT  
R1  
R3  
R2  
19-4719; Rev 3; 6/14  
1234567...23

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