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參數資料
| 型號： | LM5115MMX |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Secondary Side Post Regulator Controller |
| 中文描述： | 次級端后穩(wěn)壓控制器 |
| 文件頁數： | 2/17頁 |
| 文件大?。?/td> | 725K |
| 代理商： | LM5115MMX |
Connection Diagram
20134902
16-Lead TSSOP, LLP
See NS Package Numbers MTC16 and SDA16A
Ordering Information
Ordering Number
LM5115MM
LM5115MMX
LM5115SD
LM5115SDX
Package Type
TSSOP-16
TSSOP-16
LLP-16
LLP-16
NSC Package Drawing
MTC16
MTC16
SDA16A
SDA16A
Supplied As
1000 shipped as Tape & Reel
3500 shipped as Tape & Reel
Available Soon
Available Soon
Pin Description
PIN
1
NAME
CS
DESCRIPTION
APPLICATION INFORMATION
Current Sense amplifier positive input
A low inductance current sense resistor is connected between
CS and VOUT. Current limiting occurs when the differential
voltage between CS and VOUT exceeds 45mV (typical).
Connected directly to the output voltage. The current sense
amplifier operates over a voltage range from 0V to 12V at the
VOUT pin.
Connect directly to the power ground pin (PGND).
For normal current limit operation, connect the CO pin to the
COMP pin. Leave this pin open to disable the current limit
function.
COMP pin pull-up is provided by an internal 300uA current
source.
Connected to the regulated output through the feedback resistor
divider and compensation components. The non-inverting input
of the error amplifier is internally connected to the SS pin.
An external capacitor and the equivalent impedance of an
internal resistor divider connected to the bandgap voltage
reference set the soft-start time. The steady state operating
voltage of the SS pin equal to 0.75V (typical).
An external capacitor connected to this pin sets the ramp slope
for the voltage mode PWM. The RAMP capacitor is charged
with a current that is proportional to current into the SYNC pin.
The capacitor is discharged at the end of every cycle by an
internal MOSFET.
2
VOUT
Current sense amplifier negative input
3
4
AGND
CO
Analog ground
Current limit output
5
COMP
Compensation. Error amplifier output
6
FB
Feedback. Error amplifier inverting input
7
SS
Soft-start control
8
RAMP
PWM Ramp signal
L
www.national.com
2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM5115MTC | 功能描述:開關變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM5115MTC/MEY8 | 制造商:Texas Instruments 功能描述: |
| LM5115MTC/NOPB | 功能描述:DC/DC 開關控制器 Secondary Side Switching Reg RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| LM5115MTCX | 功能描述:開關變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM5115MTCX/NOPB | 功能描述:開關變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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