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TPS5124DBT PDF预览

TPS5124DBT

更新时间: 2024-11-22 22:34:27
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
16页 263K
描述
DUAL CHANNEL SYNCHRONOUS STEP DOWN PWM CONTROLLER

TPS5124DBT 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP,针数:30
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.84Is Samacsys:N
模拟集成电路 - 其他类型:DUAL SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:15 V
最小输入电压:6.5 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G30JESD-609代码:e4
长度:7.8 mm湿度敏感等级:2
功能数量:1端子数量:30
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:1.5 A最大输出电压:12 V
最小输出电压:0.9 V封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.2 mm
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:500 kHz温度等级:INDUSTRIAL
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4.4 mm
Base Number Matches:1

TPS5124DBT 数据手册

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ꢀꢁ ꢂ ꢃꢄ ꢅꢆ  
SLUS571 − SEPTEMBER 2003  
FEATURES  
DESCRIPTION  
D
High Efficiency − No Current Sense Resistor  
The TPS5124 is dual independent high efficiency  
synchronous step-down controller. It supports a  
low-voltage/high-current power supply applica−  
tions that use either a 5-V or 12-V bus voltage.  
Since both controllers of the TPS5124 operate  
180 degree out-of-phase, the input current ripple  
is minimized resulting in a smaller input  
capacitance and reduced power supply cost.  
Required, R Overcurrent Detection with  
DS(on)  
Temperature Compensation  
D
D
Adjustable Output Voltage Down to 0.9 V  
Voltage-Mode PWM Control: Maximum  
500-kHz Operation  
D
180° Out-of-Phase Control  
Individual Standby and Soft-Start for Each  
Channel − Easy Power Sequencing  
D
The current protection circuit detects the  
drain-to-source voltage drop across the high-side  
and low-side power MOSFET while it is  
conducting. Also, the current protection circuit has  
a temperature coefficient to compensate for the  
D
D
D
D
Overvoltage and Undervoltage Protection  
Built-In Boot-Strap Diode  
Built-In 5-V Linear Regulator  
Accurate 1% 0.85-V Reference  
R
variation of the MOSFET. This  
DS(on)  
resistor-less current protection and built-in boost  
diode simplify the system design and reduces the  
external parts count. Other features such as  
undervoltage lockout, overvoltage, undervoltage,  
and programmable short-circuit protection  
promote system reliability.  
APPLICATIONS  
D
D
D
D
Consumer Game Systems  
DSP Applications  
Digital Set-Top Box  
VGA and Sound Cards  
V
IN  
TPS5124  
1
2
30  
29  
28  
27  
V
INV1  
FB1  
LH1  
OUT1_U  
LL1  
O1  
V
O1  
3
4
5
6
7
SS1  
N/C  
OUT1_D  
OUTGND1  
TRIP1  
26  
CT  
25  
24  
23  
22  
21  
N/C  
V
GND  
VCC  
TRIP2  
IN  
8
9
REF  
STBY1  
V
VREF5  
VLSD  
IN  
10  
11  
12  
13  
14  
15  
STBY2  
SCP  
N/C  
20  
19  
18  
17  
16  
OUTGND2  
OUT2_D  
LL2  
SS2  
V
O2  
FB2  
OUT2_D  
LH2  
V
INV2  
O2  
V
UDG−03123  
IN  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
ꢁꢒ ꢓ ꢈꢉ ꢌ ꢀꢗ ꢓ ꢎ ꢈ ꢊꢀꢊ ꢘꢙ ꢚ ꢛ ꢜꢝ ꢞꢟ ꢘꢛꢙ ꢘꢠ ꢡꢢ ꢜ ꢜ ꢣꢙꢟ ꢞꢠ ꢛꢚ ꢤꢢꢥ ꢦꢘꢡ ꢞꢟ ꢘꢛꢙ ꢧꢞ ꢟꢣ ꢨ  
ꢁꢜ ꢛ ꢧꢢꢡ ꢟ ꢠ ꢡ ꢛꢙ ꢚꢛ ꢜ ꢝ ꢟ ꢛ ꢠ ꢤꢣ ꢡ ꢘꢚ ꢘꢡꢞ ꢟꢘ ꢛꢙꢠ ꢤꢣ ꢜ ꢟꢩ ꢣ ꢟꢣ ꢜ ꢝꢠ ꢛꢚ ꢀꢣꢪ ꢞꢠ ꢗꢙꢠ ꢟꢜ ꢢꢝ ꢣꢙꢟ ꢠ  
ꢠ ꢟ ꢞ ꢙꢧ ꢞ ꢜꢧ ꢫ ꢞ ꢜꢜ ꢞ ꢙ ꢟꢬꢨ ꢁꢜ ꢛ ꢧꢢꢡ ꢟꢘꢛꢙ ꢤꢜ ꢛꢡ ꢣꢠ ꢠꢘ ꢙꢭ ꢧꢛꢣ ꢠ ꢙꢛꢟ ꢙꢣ ꢡꢣ ꢠꢠ ꢞꢜ ꢘꢦ ꢬ ꢘꢙꢡ ꢦꢢꢧ ꢣ  
ꢟ ꢣ ꢠ ꢟꢘ ꢙꢭ ꢛꢚ ꢞ ꢦꢦ ꢤꢞ ꢜ ꢞ ꢝ ꢣ ꢟ ꢣ ꢜ ꢠ ꢨ  
Copyright 2003, Texas Instruments Incorporated  
1
www.ti.com  

TPS5124DBT 替代型号

型号 品牌 替代类型 描述 数据表
TPS5124DBTR TI

完全替代

TPS5124 Dual Channel Synchronous Step-Down PWM Controller 30-TSSOP -40 to 85

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