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參數(shù)資料
| 型號： | LM5041 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Cascaded PWM Controller |
| 中文描述： | 級聯(lián)PWM控制器 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 343K |
| 代理商： | LM5041 |
Pin Description
(Continued)
PIN
9
NAME
PULL
DESCRIPTION
APPLICATION INFORMATION
Output of the push-pull gate driver. Output capability
of 1.5A peak.
Connect directly to analog ground.
Connect directly to power ground.
Current sense input to the PWM comparator (CM
control). There is a 50ns leading edge blanking on
this pin. Using separate dedicated comparators, if
CS exceeds 0.5V the outputs will go into cycle by
cycle current limit. If CS exceeds 0.6V the outputs
will be disabled and a soft-start commenced.
An external capacitor and an internal 10uA current
source, set the soft-start ramp. The controller will
enter a low power state if the SS pin is below the
shutdown threshold of 0.45V
An external resistor sets the overlap time or dead
time for the push-pull outputs. A resistor connected
between TIME and GND produces overlap. A
resistor connected between TIME and REF produces
dead time.
An external resistor sets the oscillator frequency.
This pin will also accept an external oscillator.
An external divider from the power converter source
sets the shutdown levels. Threshold of operation
equals 2.5V. Hysteresis is set by a switched internal
current source (20μA).
Output of the push-pull drivers
10
11
12
PGND
AGND
CS
Power ground
Analog ground
Current sense input
13
SS
Soft-start control
14
TIME
Push-Pull overlap and dead time control
15
RT / SYNC
Oscillator timing resistor pin and sync
16
UVLO
Line Under-Voltage Shutdown
L
www.national.com
3
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM5041A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Cascaded PWM Controller |
| LM5041AMTC | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| LM5041AMTC/NOPB | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| LM5041AMTC-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM5041A Cascaded PWM Controller |
| LM5041AMTCX | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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