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TPS5102_08

更新时间： 2024-02-24 19:03:37
品牌 Logo 应用领域
德州仪器 - TI 电脑功效控制器PC
页数 文件大小 规格书
34页 1188K
描述
DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER

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中文翻译

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TPS5102_08 数据手册

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TPS5102  
DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER  
SLVS239 - SEPTEMBER 1999  
DBT PACKAGE  
(TOP VIEW)  
Dual, Step-Down for Notebook System  
Power  
4.5 V to 25 V Input Voltage Range  
Adjustable Output Voltage  
95% Efficiency Achievable  
INV1  
FB1  
LH1  
1
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
OUT1_u  
LL1  
2
SOFTSTART1  
PWM_SKIP  
3
OUT1_d  
OUTGND1  
TRIP1  
4
PWM/Skip Mode Control Maintains High  
Efficiency Under Light Load Conditions  
C
5
T
R
T
GND  
REF  
6
Fixed-Frequency Operation  
Resistorless Current Protection  
Fixed High-Side Driver Voltage  
VCC_CNTP  
TRIP2  
7
8
STBY1  
STBY2  
VREF5  
9
Low Quiescent Current (0.6 mA, <1 µA for  
Standby)  
REG5V_IN  
OUTGND2  
10  
11  
V
CC  
COMP 12  
SOFTSTART2 13  
FB2 14  
19 OUT2_d  
18 LL2  
Small 30-Pin TSSOP  
EVM Available (TPS5102EVM-135)  
17 OUT2_u  
15  
16  
INV2  
LH2  
description  
TheTPS5102isadual, highefficiencycontrollerdesignedfornotebooksystempowerrequirements. Underlight  
load conditions, high efficiency is maintained as the controller switches from the PWM mode to the lower  
frequency Skip mode.  
These two operating modes, along with the synchronous-rectifier drivers, dead-time, and very low quiescent  
current, allow power to be conserved and the battery life extended, under all load conditions.  
The resistor-less current protection and fixed high-side driver voltage simplify the system design and reduce  
the external parts count. The wide input voltage range and adjustable output voltages allow flexibility for using  
the TPS5102 in notebook power supply applications.  
5 V  
R3  
+
C1  
Q1  
Q2  
R7  
GND  
L1  
R5  
C7  
C3  
U1  
R8  
D1  
Vo1  
TPS5102DBT  
+
C10  
C12  
C4  
C8  
R2  
R9  
R10  
C2  
C5  
C13  
+
C11  
Q3  
Q4  
C6  
R4  
Vo2  
R11  
D2  
L2  
C9  
R1  
R6  
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.  
Copyright 1999, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...34

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