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参数资料
| 型号： | L6730DTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | HTSSOP-20 |
| 文件页数： | 9/50页 |
| 文件大小： | 1486K |
| 代理商： | L6730DTR |
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L6730C - L6730D
Device description
17/50
The reference of the error amplifier is clamped with this voltage (Vss) until it reaches the
programmed value: 0.6V or 1.2V. During the soft-start phase the converter works in closed
loop. The L6730C can only source current during the soft-start phase in order to manage the
prebias start-up applications. The L6730D can always sink current and so it can be used to
supply the DDR Memory termination BUS. If an over current is detected during the soft-start
phase, the device provides a constant-current-protection. In this way, in case of short soft-start
time and/or small inductor value and/or high output capacitors value and thus, in case of high
ripple current during the soft-start, the converter can start-up in any case, limiting the current
(see section 4.5 Monitoring and protections) but not entering in HICCUP mode. The soft-start
phase ends when Vss reaches 3.5V. After that the over-current-protection triggers the HICCUP
mode (L6730C). With the L6730D there is the possibility to set the HICCUP mode or the
constant current mode after the soft-start acting on the multifunction pin CC/O/U. With the
L6730 the low-side MOSFET(s) management after soft-start phase depends on the S/O/U pin
state (see related section). If the sink-mode is enabled the converter can sink current after soft-
start (see figure 9) while, if the sink-mode is disabled the converter never sinks current (see
figure 10)..
Figure 8.
Sink-mode enabled: Inductor current during and after soft-start (L6730C).
VOUT
IL
VSS
VCC
相关PDF资料 |
PDF描述 |
|---|---|
| L6730D | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6730CQTR | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, QCC24 |
| L6730CTR | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6730 | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6730B | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6730TR | 功能描述:DC/DC 开关控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6731B | 功能描述:开关变换器、稳压器与控制器 Adj. Step-Down w/ Synch Rectification RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| L6731BTR | 功能描述:IC CTRLR ADJ STEP DOWN 16-TSSOP RoHS:是 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) |
| L6731D | 功能描述:DC/DC 开关控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6731DTR | 功能描述:DC/DC 开关控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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