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参数资料
| 型号： | LM5041BSDX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 685 kHz SWITCHING FREQ-MAX, DSO16 |
| 封装： | 5 X 5 MM, LLP-16 |
| 文件页数： | 12/16页 |
| 文件大小： | 426K |
| 代理商： | LM5041BSDX |
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Oscillator
Frequency1
RT = 26.7 k
180
175
200
220
225
kHz
Frequency2
RT = 7.87 k
515
600
685
kHz
Sync threshold
-
3
3.5
V
PWM Comparator
Delay to Output
COMP = 2V, CS stepped 0 to 0.4V
Time to onset of OUT transition low
-
25
-
ns
Max Duty Cycle
TS = Oscillator Period
-
(Ts-240ns)
/ Ts
-
%
Min Duty Cycle
COMP = 0V
-
0
%
COMP to PWM Comparator Gain
-
0.32
-
COMP Open Circuit Voltage
FB = 0V
4.1
4.8
5.5
V
COMP Short Circuit Current
FB = 0V, COMP = 0V
0.6
1
1.4
mA
Slope Compensation
Slope Comp Amplitude
Delta increase at PWM Comparator
to CS
-
110
-
mV
UVLO Shutdown
Under-Voltage Shutdown
2.44
2.5
2.56
V
Under-voltage Shutdown
Hysteresis Current Source
16
20
24
A
Buck Stage Outputs
Output High level
-
5 (V
REF)
-
V
Output High Saturation
I
OUT = 10 mA, REF = VOUT
-
0.5
1
V
Output Low Saturation
I
OUT = 10 mA
-
0.5
1
V
Rise Time
C
L = 100 pF
-
10
-
ns
Fall Time
C
L = 100 pF
-
10
-
ns
Push-Pull Outputs
Overlap Time
R
SET = 20 k Connected to GND,
50% to 50% Transitions
60
90
120
ns
Dead Time
R
SET = 20k Connected to REF,
50% to 50% Transitions
65
95
125
ns
Output High Saturation
I
OUT = 50 mA
V
CC - VOUT
-
0.25
0.5
V
Output Low Saturation
I
OUT = 100 mA
-
0.5
1
V
Rise Time
C
L = 1 nF
-
20
ns
Fall Time
C
L = 1 nF
-
20
-
ns
Thermal Shutdown
T
SD
Thermal Shutdown Temp.
-
165
-
°C
Thermal Shutdown Hysteresis
-
25
-
°C
Thermal Resistance
θ
JA
Thermal Resistance
Junction to Ambient
TSSOP Package
-
125
-
°C/W
LLP Package
-
32
-
°C/W
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but does not guarantee specific performance limits. For guaranteed specifications and conditions, see the Electrical Characteristics.
Note 2:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin. Test Method is per JESD-22-A114.
Note 3:
For detailed information on soldering plastic TSSOP and LLP packages, please refer to Application Note AN-1520: A Guide to Board Layout for Best
Thermal Resistance for Exposed Packages , Application Note AN-1187: Leadless Leadframe Package (LLP) , or go to www.national.com/packaging for more
information.
Note 4:
Device thermal limitations may limit usable range.
5
www.national.com
LM5041B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM5041EVAL | 功能描述:BOARD EVALUATION LM5041 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:PowerWise® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM5041EVAL/NOPB | 功能描述:电源管理IC开发工具 LM5041 EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LM5041MTC | 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| LM5041MTC | 制造商:Texas Instruments 功能描述:PWM CONTROLLER POWERWISE TSSOP16 |
| LM5041MTC/NOPB | 功能描述:电流型 PWM 控制器 Cascaded Pwm Controller RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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