參數(shù)資料
型號(hào)： L6731BTR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝： HTSSOP-16
文件頁(yè)數(shù)： 22/24頁(yè)
文件大?。?/td> 439K
代理商： L6731BTR
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L6731B
Pin connections and functions
7/24
8
OCL
A resistor connected from this pin to ground sets the valley- current-limit. The valley
current is sensed through the low-side MOSFET(s). The internal current generator
sources a current of 100A (IOCL) from this pin to ground through the external resistor
(ROCL). The over-current threshold is given by the following equation:
Connecting a capacitor from this pin to GND helps in reducing the noise injected from
VCC to the device, but can be a low impedance path for the high-frequency noise
related to the GND. Connect a capacitor only to a "clean" GND.
9
OCH
A resistor connected from this pin and the high-side MOSFET(s) drain sets the peak-
current-limit. The peak current is sensed through the high-side MOSFET(s). The
internal 100A current generator (IOCH) sinks a current from the drain through the
external resistor (ROCH). The over-current threshold is given by the following
equation:
10
PHASE
This pin is connected to the source of the high-side MOSFET(s) and provides the
return path for the high-side driver. This pin monitors the drop across both the upper
and lower MOSFET(s) for the current limit together with OCH and OCL.
11
HGATE
This pin is connected to the high-side MOSFET(s) gate.
12
BOOT
Through this pin is supplied the high-side driver. Connect a capacitor from this pin to
the PHASE pin and a diode from VCCDR to this pin (cathode versus BOOT).
13
PGND
This pin has to be connected closely to the low-side MOSFET(s) source in order to
reduce the noise injection into the device.
14
LGATE
This pin is connected to the low-side MOSFET(s) gate.
15
VCCDR
5V internally regulated voltage. It is used to supply the internal drivers. Filter it to
ground with at least 1F ceramic cap.
16
VCC
Supply voltage pin. The operative supply voltage range is from 4.5V to 14V.
Table 3.
Pin functions
IVALLEY
IOCL IOCL
2RDSONLS
---------------------------------
=
IPEAK
IOCH ROCH
RDSONHS
---------------------------------
=
相關(guān)PDF資料
PDF描述
L6731B 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6731D 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
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L9230 STEPPER MOTOR CONTROLLER, PDSO20
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6731D 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6731DTR 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6732 功能描述:DC/DC 開(kāi)關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6732_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6732_0906 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
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