參數(shù)資料
型號: L296HT
廠商: 意法半導(dǎo)體
英文描述: HIGH CURRENT SWITCHINGREGULATORS
中文描述: 大電流SWITCHINGREGULATORS
文件頁數(shù): 2/22頁
文件大小: 285K
代理商: L296HT
PIN FUNCTIONS
N
°
1
Name
Function
CROWBAR INPUT
Voltage Sense Input for Crowbar Overvoltage Protection. Normally connected to the
feedback input thus triggering the SCR when V
exceeds nominal by 20 %. May
also monitor the input and a voltage divider can be added to increase the threshold.
Connected to ground when SCR not used.
Regulator Output
Unrergulated Voltage Input. An internal Regulator Powers the L296s Internal Logic.
A resistor connected between this terminal and ground sets the current limiter
threshold. If this terminal is left unconnected the threshold is internally set (see
electrical characteristics).
Soft Start Time Constant. A capacitor is connected between this terminal and ground
to define the soft start time constant. This capacitor also determines the average
short circuit output current.
TTL – Level Remote Inhibit. A logic high level on this input disables the device.
Multiple L296s are synchronized by connecting the pin 7 inputs together and omitting
the oscillator RC network on all but one device.
Common Ground Terminal
A series RC network connected between this terminal and ground determines the
regulation loop gain characteristics.
The Feedback Terminal on the Regulation Loop. The output is connected directly to
this terminal for 5.1V operation ; it is connected via a divider for higher voltages.
A parallel RC networki connected to this terminal determines the switching frequency.
This pin must be connected to pin 7 input when the internal oscillator is used.
Input of the Reset Circuit. The threshold is roughly 5 V. It may be connected to the
feedback point or via a divider to the input.
A capacitor connected between this terminal and ground determines the reset signal
delay time.
Open collector reset signal output. This output is high when the supply is safe.
SCR gate drive output of the crowbar circuit.
2
3
4
OUTPUT
SUPPLY VOLTAGE
CURRENT LIMIT
5
SOFT START
6
7
INHIBIT INPUT
SYNC INPUT
8
9
GROUND
FREQUENCY
COMPENSATION
FEEDBACK INPUT
10
11
OSCILLATOR
12
RESET INPUT
13
RESET DELAY
14
15
RESET OUTPUT
CROWBAR OUTPUT
BLOCK DIAGRAM
L296 - L296P
2/22
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L296P 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5.1 to 40V Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
L296P 制造商:STMicroelectronics 功能描述:DC/DC Converter IC
L296PHT 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5.1 to 40V Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
L297 制造商:Panasonic Industrial Company 功能描述:INTEGRATED CIRC
L297/1 功能描述:馬達/運動/點火控制器和驅(qū)動器 Stepper Motor RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube