参数资料
型号: MAX8745ETJ+
厂商: Maxim Integrated Products
文件页数: 15/36页
文件大小: 0K
描述: IC CNTRLR PWR SUP QUAD 32TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
应用: 控制器,笔记本电脑电源系统
输入电压: 6 V ~ 26 V
输出数: 4
输出电压: 3.3V,5V,1 V ~ 26 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 管件
High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
Pin Description (continued)
PIN
31
32
EP
NAME
FBA
OUTA
EP
FUNCTION
Auxiliary LDO Feedback Input. Connect a resistive voltage-divider from OUTA to analog ground to
adjust the auxiliary linear-regulator output voltage. FBA regulates at 1V.
Adjustable Auxiliary Linear-Regulator Output. Bypass OUTA to GND with 1μF or greater capacitor
(1μF/25mA). When DRVA < OUTA, the secondary feedback control triggers the DL5 for 1μs forcing
the controller to recharge the auxiliary storage capacitor. When DRVA exceeds 25V, the
MAX8744/MAX8745 enable a 10mA shunt on OUTA, preventing the storage capacitor from rising to
unsafe levels due to the transformer’s leakage inductance. Pulling ONA high enables the linear-
regulator driver and the secondary feedback control.
Exposed Pad. Connect the exposed backside pad to analog ground.
Table 1. Component Selection for Standard Applications
300kHz
500kHz
COMPONENT
INPUT VOLTAGE
C IN_ , Input Capacitor
5V OUTPUT
C OUT5 , Output Capacitor
L5/T5 Inductor/Transformer
N H5 High-Side MOSFET
N L5 Low-Side MOSFET
3V OUTPUT
C OUT3 , Output Capacitor
L3, Inductor
N H3 High-Side MOSFET
N L3 Low-Side MOSFET
5V AT 5A
3.3V AT 6A
V IN = 7V TO 24V
(3) 10μF, 25V
Taiyo Yuden TMK432BJ106KM
2x 100μF, 6V, 35m Ω
SANYO 6TPE100MAZB
6.8μH, 6.4A, 18m Ω (max) 1:2
Sumida 4749-T132
Fairchild Semiconductor
FDS6612A
International Rectifier
IRF7807V
Fairchild Semiconductor
FDS6670S
International Rectifier
IRF7807VD1
2x 150μF, 4V, 35m Ω
SANYO 4TPE150MAZB
5.7μH, 9A, 8.5m Ω
TDK RLF12560T-5R6N9R2
Fairchild Semiconductor
FDS6612A
International Rectifier
IRF7807V
Fairchild Semiconductor
FDS6670S
International Rectifier
IRF7807VD1
5V AT 3A
3.3V AT 5A
V IN = 7V TO 24V
(3) 10μF, 25V
Taiyo Yuden TMK432BJ106KM
2x 100μF, 6V, 35m Ω
SANYO 6TPE100MAZB
Fairchild Semiconductor
FDS6612A
International Rectifier
IRF7807V
Fairchild Semiconductor
FDS6670S
International Rectifier
IRF7807VD1
2x 100μF, 6V, 35m Ω
SANYO 6TPE100MAZB
3.9μH, 6.5A, 15m Ω
Sumida CDRH124-3R9NC
Fairchild Semiconductor
FDS6612A
International Rectifier
IRF7807V
Fairchild Semiconductor
FDS6670S
International Rectifier
IRF7807VD1
______________________________________________________________________________________
15
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MAX8745ETJ+ 功能描述:电流和电力监控器、调节器 Quad-Out Main Power Supply Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel
MAX8745ETJ+T 功能描述:电流和电力监控器、调节器 Quad-Out Main Power Supply Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel
MAX874C/D 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数(典型值):100 PPM / C 串联 VREF - 输入电压(最大值): 串联 VREF - 输入电压(最小值): 分流电流(最大值):60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
MAX874CPA 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数(典型值):100 PPM / C 串联 VREF - 输入电压(最大值): 串联 VREF - 输入电压(最小值): 分流电流(最大值):60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel
MAX874CPA+ 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数(典型值):100 PPM / C 串联 VREF - 输入电压(最大值): 串联 VREF - 输入电压(最小值): 分流电流(最大值):60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel