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TMP814

更新时间: 2024-09-13 12:21:59
品牌 Logo 应用领域
德州仪器 - TI 驱动器风扇电机
页数 文件大小 规格书
12页 534K
描述
VARIABLE SPEED SINGLE-PHASE FULL-WAVE FAN MOTOR PRE-DRIVER

TMP814 数据手册

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TMP814  
www.ti.com ........................................................................................................................................................................................................ SLDS151MAY 2009  
VARIABLE SPEED SINGLE-PHASE FULL-WAVE FAN MOTOR PRE-DRIVER  
1
FEATURES  
PW PACKAGE  
(TOP VIEW)  
Pre-Driver for Single-Phase Full-Wave Drive  
PNP-NMOS is Used as an External Power  
TR, Enabling High-Efficiency  
Low-Consumption Drive by Means of the  
Low-Saturation Output and Single-Phase  
Full-Wave Drive (PMOS-NMOS Also  
Applicable)  
1
2
3
4
5
6
7
8
9
10  
20  
OUT2P  
OUT2N  
VCC  
OUT1P  
OUT1N  
VOVER  
SGND  
6VREG  
ROFF  
CT  
19  
18  
17  
16  
15  
14  
13  
12  
11  
VLIM  
SENSE  
RMI  
VTH  
CPWM  
FG  
RD  
IN+  
HB  
External PWM Input Enabling Variable Speed  
Control  
IN–  
Separately-Excited Upper Direct PWM (f =  
25 kHz) Control Method, Enabling Highly  
Silent Speed Control  
DESCRIPTION/  
ORDERING INFORMATION  
Compatible with 12-V, 24-V, and 48-V Power  
Supplies  
The TFAN212D004 is a single-phase bipolar variable  
speed fan motor predriver that works with an external  
PWM signal. A highly efficient, quiet and low power  
consumption motor driver circuit, with a large variable  
speed, can be implemented by adding a small  
number of external components.  
Current Limiter Circuit Incorporated  
Chopper Type Current Limit at Start  
Reactive Current Cut Circuit Incorporated  
Reactive Current Before Phase Change is  
Cut to Enable Silent and Low-Consumption  
Drive  
This device is optimal for driving large scale fan  
motors (with large air volume and large current) such  
as those used in servers and consumer products.  
Minimum Speed Setting Pin  
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Minimum Speed Can Be Set With External  
Resistor. Start Assistance Circuit Enables  
Start at Extremely Low Speed.  
Constant-Voltage Output Pin for Hall Bias  
Lock Protection and Automatic Reset  
Functions Incorporated  
FG (Rotation Speed Detection) and RD (Lock  
Detection) Output  
ORDERING INFORMATION(1)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TMP814PWR  
TOP-SIDE MARKING  
-30°C to 95°C  
TSSOP – PW  
Reel of 2000  
TMP814  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/package.  
1
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2009, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

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