参数资料
| 型号： | TDA21301 |
| 厂商： | Infineon Technologies |
| 文件页数： | 13/25页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM MULTI CPU TSSOP-28 |
| 产品变化通告： | Product Discontinuation 30/Jul/2007 |
| 标准包装： | 2,500 |
| 应用： | PWM控制器，CPU 内核 |
| 输入电压： | 4.5 V ~ 5.5 V |
| 输出数： | 4 |
| 输出电压： | 0.8375 V ~ 1.6 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | P-TSSOP-28 |
| 包装： | 带卷 (TR) |
| 其它名称： | SP000013699 TDA21301T |
Fault Detection
TDA21301 detects V CORE for over voltage protection and power good signal indication. The “ hiccup
mode “ operation of over-current and short circuit protection is adopted to reduce the short circuit
current. The inrush current during the start up is suppressed by the soft start function which can be
programmed by external capacitor at soft start pin through clamping the pulse width.
Phase Setting and Converter Start Up
The TDA21301 interfaces with companion CoreControl TM MOSFET drivers, TDA21106, TDA21107 (
Single Channel ) and TDA21102, TDA21103 ( Dual Channel ), for correct converter power sequence.
The tri-state PWM outputs sense the interface voltage during IC POR period ( both VCC and DVD trip ).
The channel is enabled if the voltage at the pin is 1.2V less than VCC. Tie the PWM outputs to VCC and
the current sense pins to GND or leave them floating if the channel is unused. For 3 Phase application,
connect PWM4 high.
Current Sensing Setting
TDA21301 senses the inductor current flowing through its DCR in each phase when synchronous
MOSFETs are conducting for channel balance and droop tuning. The differential sensing GM amplifier
converts the voltage accross the capacitor of the RC network which is qually the voltage drop at the
inductor’s DCR to current signal into internal current balance circuit.
+
V L (S)
I L
-
V + = V CCSP = I L ×DCR , V ? = I X × R CSN
I L ×DCR
Because V + = V ? ? so, I X =
R CSN
+ V CCSP (S) -
Ix
Basic Theory
R CSP +
=V L (s)× =I L (s)×
V CCSP (s)=V L (s)×
1
sC CSP
1
sC CSP
1 sL+DCR
sR CSP C CSP +1 sR CSP C CSP +1
so, sR CSP C CSP +1= +1
We target to have V CCSP (s)=I L (s)×DCR, then I L (s)×DCR=I L (s)×
sL
DCR
sL+DCR
sR CSP C CSP +1
We can conclude now V CCSP (s)=I L (s)×DCR if R CSP C CSP =
L
DCR
CoreControl TM
Page 13 of 25
DS-CoreControl-TDA21301
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA21301ZT | 制造商:Infineon Technologies AG 功能描述:Multi Phase PWM Controller 28-Pin TSSOP T/R |
| TDA21302 | 功能描述:IC CTRLR PWM MULTI CPU PDSO-32 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| TDA2140 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:LINEAR INTEGRATED CIRCUIT |
| TDA2148 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:AM AMPLIFIER FOR FRENCH SOUND IF STANDARD |
| TDA2151 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:LINEAR INTEGRATED CIRCUIT |
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