參數(shù)資料
型號： LM5033
廠商： National Semiconductor Corporation
英文描述： 100V Push-Pull Voltage Mode PWM Controller
中文描述： 100V的推挽式電壓模式PWM控制器
文件頁數(shù)： 5/16頁
文件大?。?/td> 295K
代理商： LM5033
Electrical Characteristics
(Continued)
Specifications with standard typeface are for T
= 25C, and those with
boldface
type apply over full
Operating Junction
Temperature range
. V
IN
= 48V, V
CC
= 10V applied externally, R
T
= 26.7k
, unless otherwise stated. See (Note 4) and (Note
5).
Symbol
Oscillator (Pin 9)
Fs1
Fs2
Vsync
Parameter
Conditions
Min
Typ
Max
Units
Internal frequency
Internal frequency
Sync threshold
R
t
/Sync DC voltage
Rt = 26.7 k
Rt = 8.2 k
175
200
600
3.2
2.0
225
kHz
kHz
V
V
3.8
PWM Comparator Input (Pin 3)
t
PWM
Gain from pin 3 to
PWM comparator
Maximum duty cycle at
Out1, Out2
Minimum duty cycle at
Out1, Out2
Open Circuit Voltage
Short circuit current
Output Drivers (Pin 5, 6)
Deadtime (T
D
)
0.34
V/V
See PWM Comparator
text
Pin 3 = 0V.
100 x
(0.5T
S
-T
D
)/T
S
%
0
%
4.2
0.6
5.2
1.1
6.2
1.5
V
Pin 3 = 0V
mA
CLoad = 0
@
OUT1,
OUT2. Time measured
from 10% of falling
output to 10% of rising
output.
C
Load
= 1nF
C
Load
= 1nF
Iout = 50 mA (source)
Iout = 100 mA (sink)
85
135
185
ns
Rise Time
Fall Time
Output High Voltage
Output Low Voltage
Max. source current
Max. sink current
16
16
ns
ns
V
V
A
A
Vcc-0.75
Vcc-0.25
0.25
1.5
1.5
0.75
Thermal Shutdown
T
SD
Shutdown temperature
Shutdown temperature
hysteresis
165
15
C
C
Thermal Resistance
θ
JA
Junction to Ambient
SDC10A Package
38
C/W
Note 1:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device
is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2:
The maximum allowable power dissipation is a function of the maximum allowed junction temperature (T
J(max)
), the ambient temperature (T
A
), and the
junction-to-ambient thermal resistance (
θ
JA
). The maximum allowable power dissipation can be calculated from PD = (T
J(max)
- T
A
) /
θ
JA
. Excessive power dissipation
will cause the thermal shutdown to activate.
Note 3:
The human body model is a 100 pF capacitor discharged through a 1.5k
resistor into each pin.
Note 4:
Min and Max limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical
Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 5:
Typical specifications represent the most likely parametric norm at 25C operation.
L
www.national.com
5
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5033_05 制造商:NSC 制造商全稱:National Semiconductor 功能描述:100V Push-Pull Voltage Mode PWM Controller
LM5033MM 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 拓撲結(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
LM5033MM/MEY8 制造商:Texas Instruments 功能描述:
LM5033MM/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 拓撲結(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
LM5033MMX 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 拓撲結(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
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