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参数资料
| 型号： | LM5046MHX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 540 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | TSSOP-28 |
| 文件页数： | 31/32页 |
| 文件大小： | 888K |
| 代理商： | LM5046MHX |
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Symbol
Parameter
Conditions
Min
Typ
Max
Units
Comp Pin
V
PWM-OS
COMP current to RAMP offset
V
RAMP=0V
680
800
940
A
V
SS-OS
SS to RAMP offset
V
RAMP=0V
0.78
1.0
1.22
V
COMP current to RAMP gain
ΔRAMP/ΔI
COMP
2400
SS to RAMP gain
ΔSS/ΔRAMP
0.5
COMP current for SSSR charge
current enable
V
SS > 2V
690
800
915
A
COMP to output delay
120
ns
Minimum duty cycle
I
COMP = 1mA
0
%
Slope Compensation (SLOPE Pin)
I
SLOPE
Slope compensation current ramp
Peak of RAMP current
100
A
BOOST (BST Pin)
V
Bst uv
BST under-voltage threshold
V
BST-VHS rising
3.8
4.7
5.6
V
Hysteresis
0.5
V
HO1, HO2, LO1, LO2 Gate Drivers
V
OL
Low-state output voltage
I
HO/LO = 100mA
0.16
0.32
V
OH
High-state output voltage
I
HO/LO = 100mA
V
OHL = VCC-VLO
V
OHH = VBST-VHO
0.27
0.495
V
Rise Time
C-load = 1000pF
16
ns
Fall Time
C-load = 1000pF
11
ns
I
OHL
Peak Source Current
V
HO/LO = 0V
1.5
-
A
I
OLL
Peak Sink Current
V
HO/LO = VCC
2
-
A
SR1, SR2 Gate Drivers
V
OL
Low-state output voltage
I
SR1/SR2 = 10mA
0.05
0.10
V
OH
High-state output voltage
I
SR1/SR2 = 10mA,
V
OH = VREF-VSR
0.17
0.28
V
Rise Time
C-load = 1000pF
60
ns
Fall Time
C-load = 1000pF
20
ns
I
OHL
Peak Source Current
V
SR = 0V
0.1
-
A
I
OLL
Peak Sink Current
V
SR = VREF
0.4
-
A
Thermal
TSD
Thermal Shutdown Temp
160
°C
Thermal Shutdown Hysteresis
25
°C
RJA
Junction to Ambient
eTSSOP - 28/LLP-28
40
°C/W
RJC
Junction to Case
4
°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:
These pins are output pins and as such should not be connected to an external voltage source. The voltage range listed is the limits the internal circuitry
is designed to reliably tolerate in the application circuit.
Note 3:
The human body model is a 100pF capacitor discharged through a 1.5k
resistor into each pin.
Note 4:
The negative HS voltage must never be more negative than VCC-16V. For example, if VCC=12V, the negative transients at HS must not exceed -4V.
Note 5:
4 layer standard thermal test board. Cu thickness of layers (2oz, 1oz, 1oz, 2oz).
www.national.com
8
LM5046
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM5046MHX/NOPB | 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 |
| LM5046SQ | 制造商:TI 制造商全称:Texas Instruments 功能描述:LM5046 Phase-Shifted Full-Bridge PWM Controller with Integrated MOSFET Drivers |
| LM5046SQ/NOPB | 功能描述:电流型 PWM 控制器 Phase-Shifted Full- Bridge PWM Cntrlr 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 |
| LM5046SQX | 制造商:TI 制造商全称:Texas Instruments 功能描述:LM5046 Phase-Shifted Full-Bridge PWM Controller with Integrated MOSFET Drivers |
| LM5046SQX/NOPB | 功能描述:IC PWM CTRLR FULL BRIDG 28LLP RoHS:是 类别:集成电路 (IC) >> PMIC - AC-DC 转换器，离线开关 系列:PowerWise® 标准包装:1 系列:FPS™ 输出隔离:隔离 频率范围:61kHz ~ 73kHz 输入电压:8 V ~ 26 V 输出电压:650V 功率（瓦特）:12W 工作温度:-40°C ~ 115°C 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-MDIP 包装:Digi-Reel® 其它名称:FSL206MRBNFSDKR |
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