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参数资料
| 型号： | L6740L |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP48 |
| 封装： | 7 X 7 MM, 1 MM HEIGHT, HTQFP-48 |
| 文件页数： | 44/44页 |
| 文件大小： | 755K |
| 代理商： | L6740L |
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L6740L
Pins description and connection diagrams
7
Core
section
FBG
Remote ground sense.
Connect to the negative side of the load for remote sensing. See
Section 9 for proper layout of this connection.
8OS
Offset programming pin.
Internally set to 1.24 V. Connecting a ROS resistor to SGND allows to
set a current that is mirrored into FB pin in order to program a positive
offset according to the selected RFB.
Short to SGND to disable the function. See Section 6.4 for details.
9LTB
LTB TechnologyTM input pin.
Connect through an RLTB - CLTB network to the regulated voltage
(CORE section) to detect load transient. See Section 10 for details.
10
OVP / V_FIX
OVP. Overvoltage programming pin. Internally pulled-up to 3.3 V by
11
μA. Connect to SGND through a R
OVP resistor and filter with 10 nF
(typ) to set a fixed voltage according to the ROVP resistor. If floating it
will program 3.3 V threshold. See Section 7 for details.
V_FIX - Hardware override. Short to SGND to enter VFIX mode
(WARNING: this condition overrides any code programmed on the VIDx
lines). In this case, the device will use SVI inputs as static VIDs and
OVP threshold will be set to 1.8 V. See Section 5.4.5 for details.
11
Co
re
s
e
ction
LTB_GAIN
LTB TechnologyTM gain pin.
Connect to SGND through a resistor RLTBGAIN to program the LTB
Gain. See Section 10 for details.
12
PSI_L
Power saving indicator (SVI mode).
Open-drain input/output pin. See Section 5.4.3 for details.
13
Co
re
se
ctio
n
CS1+
Channel 1 current sense positive Input. Connect through an R-C filter to
the phase-side of the channel 1 inductor.
See Section 9 for proper layout of this connection.
14
CS1-
Channel 1 current sense negative input. Connect through a RG resistor
to the output-side of the channel inductor.
See Section 9 for proper layout of this connection.
15
CS2+
Channel 2 current sense positive input. Connect through an R-C filter to
the phase-side of the channel 2 inductor.
See Section 9 for proper layout of this connection.
16
CS2-
Channel 2 current sense negative input. Connect through a RG resistor
to the output-side of the channel inductor.
See Section 9 for proper layout of this connection.
17
CS3+
Channel 3 current sense positive input. Connect through an R-C filter to
the phase-side of the channel 3 inductor. When working at 2 phase,
directly connect to Vout_CORE.
See Section 9 for proper layout of this connection.
18
CS3-
Channel 3 current sense negative input. Connect through a RG resistor
to the output-side of the channel inductor. When working at 2 phase,
connect through RG to CS3+.
See Section 9 for proper layout of this connection.
Table 2.
Pin description (continued)
Pin#
Name
Function
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6740LTR | 功能描述:DC/DC 开关控制器 Hybrid 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 |
| L6741 | 功能描述:功率驱动器IC SnglPphase Dual MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6741TR | 功能描述:功率驱动器IC SnglPphase Dual MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6743 | 功能描述:功率驱动器IC SnglPphase Dual MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6743_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High current MOSFET driver |
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