参数资料
| 型号： | TDA21301 |
| 厂商： | Infineon Technologies |
| 文件页数： | 12/25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 |
Current Balance
TDA21301 senses the inductor current directly via a RC network to emulate the voltage drop across the
inductor’s DCR in each phase when the synchronous MOSFETs are conducting for channel balance
droop tuning and over current protection. 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. The current balance circuit sums and averages the
current signals and then generates the balancing signals injected to pulse signal modulator. If some of
the channel current is higher than average, the balancing signal shall decrease the pulse width at that
channel to keep the current balance.
Single GM amplifier with time sharing technique has been used for reducing the offset errors and the
linearity variation between different GM amplifiers. Thus with this technique it can greatly improve the
accuracy of the sensed channel current with small voltage drop at the inductor’s DCR.
Load Droop
The sensed channel current signals are summed. This summed current shall be sent to ADJ pin where
there is a resistor connecting to ground. So the summed current and this resistor establish the droop
voltage which is used to regulate the output of the DAC to form a output voltage droop proportional to
the load current. The droop or so-called “ Active Voltage Positioning “ can reduce the output voltage
ripple during the load transient and the size of the LC filters.
V DAC - V ADJ
V ADJ = R ADJ x I SUM
Current Sum, I SUM
ADJ
R ADJ
CoreControl TM
Page 12 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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