參數(shù)資料
型號(hào)： LM5035AMH-1
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO28
封裝： TSSOP-28
文件頁數(shù)： 25/30頁
文件大?。?/td> 585K
代理商： LM5035AMH-1
Ordering Information
Order Number
Package Type
NSC Package Drawing
Supplied As
LM5035AMH
TSSOP-20EP
MXA20A
73 Units per Rail
LM5035AMHX
TSSOP-20EP
MXA20A
2500 Units on Tape and Reel
LM5035ASQ
LLP-24
SQA24B
1000 Units on Tape and Reel
LM5035ASQX
LLP-24
SQA24B
4500 Units on Tape and Reel
LM5035AMH-1
TSSOP-28EP
MXA28A
Rail of 48 Units
LM5035AMHX-1
TSSOP-28EP
MXA28A
2500 Units on Tape and Reel
Pin Descriptions for LM5035A and LM5035A–1
TSSOP 20 PIN
LM5035A
LLP PIN
LM5035A
TSSOP 28 PIN
LM5035A-1
Name
Description
Application Information
1
23
5
RAMP
Modulator ramp signal
An external RC circuit from VIN
sets the ramp slope. This pin is
discharged at the conclusion of
every cycle by an internal FET.
Discharge is initiated by either the
internal clock or the Volt Second
clamp comparator.
2
24
6
UVLO
Line Under-Voltage
Lockout
An external voltage divider from the
power source sets the shutdown
and standby comparator levels.
When UVLO reaches the 0.4V
threshold the VCC and REF
regulators are enabled. When
UVLO reaches the 1.25V
threshold, the SS pin is released
and the device enters the active
mode. Hysteresis is set by an
internal current sink that pulls 23 A
from the external resistor divider.
3
2
7
OVP
Line Over-Voltage
Protection
An external voltage divider from the
power source sets the shutdown
levels. The threshold is 1.25V.
Hysteresis is set by an internal
current source that sources 23A
into the external resistor divider.
4
3
8
COMP
Input to the Pulse Width
Modulator
An external opto-coupler
connected to the COMP pin
sources current into an internal
NPN current mirror. The PWM duty
cycle is maximum with zero input
current, while 1mA reduces the
duty cycle to zero. The current
mirror improves the frequency
response by reducing the AC
voltage across the opto-coupler
detector.
www.national.com
4
LM5035A/LM5035A-1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5035AMH-1/NOPB 功能描述:電壓模式 PWM 控制器 100V Hb Pwm W/Driver RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
LM5035AMHX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PWM Controller with Integrated Half-Bridge and SyncFET PWM Controller with Integrated Half-Bridge and SyncFET
LM5035AMHX/NOPB 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
LM5035AMHX-1 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PWM Controller with Integrated Half-Bridge and SyncFET PWM Controller with Integrated Half-Bridge and SyncFET
LM5035AMHX-1/NOPB 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor
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