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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： | 49/50页 |
| 文件大小： | 1486K |
| 代理商： | L6730DTR |
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Pin connections and functions
L6730C - L6730D
8/50
4
TMASK
By connecting this pin to VCCDR or ground it is possible to select two different
values for the leading edge blanking time on the peak-over-current-protection.
The device captures the analog value present at this pin at the start-up when
VCC meets the UVLO threshold.
5
GND
All the internal references are referred to this pin.
6FB
This pin is connected to the error amplifier inverting input. Connect it to Vout
through the compensation network. This pin is also used to sense the output
voltage in order to manage the over voltage conditions and the PGood signal.
7COMP
This pin is connected to the error amplifier output and is used to compensate
the voltage control loop.
8
SS/INH
The soft-start time is programmed connecting an external capacitor from this
pin and GND. The internal current generator forces a current of 10
A through
the capacitor. This pin is also used to inhibit the device: when the voltage at
this pin is lower than 0.5V the device is disabled.
9
EAREF
It is possible to set two internal references 0.6V / 1.2V or provide an external
reference from 0V to 2.5V:
–
VEAREF from 0% to 80% of VCCDR > External Reference
–
VEAREF from 80% to 95% of VCCDR > VREF=1.2V
–
VEAREF from 95% to 100% of VCCDR > VREF=0.6V
An internal clamp limits the maximum VEAREF at 2.5V (typ.). The device
captures the analog value present at this pin at the start-up when VCC meets
the UVLO threshold.
10
OSC
Connecting an external resistor from this pin to GND, the external frequency
can be increased according with the following equation:
Connecting a resistor from this pin to VCCDR (5V), the switching frequency can
be lowered according with the following equation:
If the pin is left open, the switching frequency is 400 KHz. Normally this pin is at
a voltage of 1.2V. In OVP the pin is pulled up to 4.5V (only in latched mode).
Don’t connect a capacitor from this pin to GND.
Table 3.
Pins connection
)
(
10
88
.
9
400
6
+
=
K
R
KHz
Fsw
OSC
)
(
10
01
.
3
400
7
=
K
R
KHz
Fsw
OSC
相关PDF资料 |
PDF描述 |
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| 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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