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| 型号： | MAX8744ETJ+ |
| 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 |
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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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8744ETJ+ | 功能描述:电流型 PWM 控制器 Quad-Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX8744ETJ+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 |
| MAX8744EVKIT | 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY QUAD OUTPUT MAIN - Rail/Tube |
| MAX8744EVKIT+ | 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY QUAD OUTPUT MAIN - Rail/Tube |
| 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 |
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