- 您现在的位置：买卖IC网 > PDF目录67754 > L6717 (STMICROELECTRONICS) DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, QCC48 PDF资料下载
参数资料
| 型号： | L6717 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, QCC48 |
| 封装： | 7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFPN-48 |
| 文件页数： | 56/56页 |
| 文件大小： | 1081K |
| 代理商： | L6717 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页当前第56页
L6717
Pins description and connection diagrams
Doc ID 17326 Rev 1
9/56
5
CORE
section
FB
CORE error amplifier inverting input.
Connect with a resistor RFB to VSEN and with an RF - CF to COMP. Droop current for
voltage positioning is sourced from this pin.
6VSEN
CORE output voltage monitor.
It manages OVP and UVP protections and PWRGOOD. Connect to the positive side
of the load for remote sensing. See Section 8 for details.
7FBG
CORE remote ground sense.
Connect to the negative side of the load for remote sensing. See Section 11 for proper
layout of this connection.
8LTB
LTB Technology input pin.
Connect through an RLTB - CLTB network to the regulated voltage (CORE section) to
detect load transient. See Section 12 for details.
9
NB
section
NB_COMP
NB error amplifier output.
Connect with an RF_NB - CF_NB to NB_FB.
The NB section and/or the device cannot be disabled by grounding this pin.
10
NB_FB
NB error amplifier inverting input.
Connect with a resistor RFB_NB to NB_VSEN and with an RF_NB - CF_NB to NB_COMP.
Droop current for voltage positioning is sourced from this pin.
11
NB_VSEN
NB output voltage monitor.
It manages OVP and UVP protections and PWRGOOD. Connect to the positive side
of the NB load to perform remote sensing. See Section 11 for proper layout of this
connection.
12
NB_FBG
NB remote ground sense.
Connect to the negative side of the load to perform remote sense. See Section 11 for
proper layout of this connection.
13
CORE
section
ILIM
CORE over current pin.
A current ILIM=DCR/RG*IOUT proportional to the current delivered by the CORE
Section is sourced from this pin. The OC threshold is programmed by connecting a
resistor RILIM to SGND. When the generated voltage crosses the OC_TOT threshold
(VOC_TOT = 2.5V Typ) the device latches with all MOSFETs OFF (to recover, cycle
VCC or the EN pin).
This pin is monitored for dynamic phase management.
Filter with proper capacitor to provide OC masking time; do not exceed 30
μsec. See
Section 8.4.1 for details.
14
OSC / EN /
FLT
OSC: It allows programming the switching frequency FSW of both sections. Switching
frequency can be increased according to the resistor ROSC connected to SGND with a
gain of 9.1kHz/A (see Section 9 for details). If floating, the switching frequency is
200kHz per phase.
EN: Pull-low (tie to GND) to disable the device. When set free, the device immediately
checks for the VID1 status to determine the SVI / PVI protocol to be adopted and
configures itself accordingly.
FLT: The pin is internally forced high (3.3V) in case of an OV / UV fault. To recover
from this condition, cycle VCC or the EN pin.
To enable/disable the IC drive OSC/EN/FAUT pin by an open drain circuit.
Table 2.
Pin description (continued)
Pin#
Name
Function
相关PDF资料 |
PDF描述 |
|---|---|
| L6728HTR | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| L6728H | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| L6728 | 1.5 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, DSO10 |
| L6728TR | 1.5 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, DSO10 |
| L6731BTR | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6717A | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717ATR | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller T/R 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Tape and Reel 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717TR | 功能描述:开关变换器、稳压器与控制器 High-Efficienc AM2r2 Hybrid Controller 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 |
| L6718TR | 功能描述:其他电源管理 Multiphase Dual PWM VR12 25MHz LTB RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| L6720 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
发布紧急采购，3分钟左右您将得到回复。