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参数资料
| 型号： | LM3423MHBSTEVAL/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 5/67页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL BOOST FOR LM3423 |
| 标准包装： | 1 |
| 系列： | PowerWise® |
| 电流 - 输出 / 通道： | 1A |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 35V |
| 特点： | 可调光 |
| 输入电压： | 4.5 ~ 35 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | LM3423 |
| 其它名称： | LM3423MHBSTEVAL |
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Electrical Characteristics
(1)
SNVS574E – JULY 2008 – REVISED MAY 2013
Specifications in standard type face are for T J = 25°C and those with boldface type apply over the full Operating
Temperature Range ( T J = ? 40°C to +150°C for LM3421Q0/LM3423Q0, T J = ? 40°C to +125°C for all others). Specifications
that differ between the two operating ranges will be identified in the Temp Range column as Q0 for T J = ? 40°C to +150°C
and as Q1 for T J = ? 40°C to +125°C. If no temperature range is indicated then the specification holds for both Q1 and Q0.
Minimum and Maximum limits are specified through test, design, or statistical correlation. Typical values represent the most
likely parametric norm at T J = +25°C, and are provided for reference purposes only. Unless otherwise stated the following
condition applies: V IN = +14V.
Symbol
Parameter
Conditions
Temp
Range
Min (2)
Typ (3)
Max (2)
Units
STARTUP REGULATOR
V CCREG
I CCLIM
I Q
I SD
V CC Regulation
V CC Current Limit
Quiescent Current
Shutdown Current
I CC = 0 mA
V CC = 0V
EN = 3.0V, Static
EN = 0V
Q1
Q0
6.30
20
6.90
25
2
0.1
7.35
3
3.5
1.0
V
mA
μA
V CC SUPPLY
V CCUV
V CCHYS
V CC UVLO Threshold
V CC UVLO Hysteresis
V CC Increasing
V CC Decreasing
3.70
4.17
4.08
0.1
4.50
V
EN THRESHOLDS
EN ST
EN Startup Threshold
EN Increasing
EN Decreasing
Q1
Q0
0.80
1.75
1.63
2.40
2.75
V
EN STHYS
EN Startup Hysteresis
0.1
R EN
EN Pulldown Resistance
EN = 1V
Q1
Q0
0.45
0.82
1.30
1.80
M ?
CSH THRESHOLDS
CSH High Fault
CSH Increasing
1.6
CSH Low Condition on LRDY
Pin (LM3423)
CSH increasing
1.0
V
OV THRESHOLDS
OVP CB
OVP OVLO Threshold
OVP Increasing
1.185
1.240
1.285
V
OVP HYS
OVP Hysteresis Source
Current
OVP Active (high)
Q1
Q0
20
23
25
26
μA
DPOL THRESHOLDS
DPOL THRES
DPOL Logic Threshold
DPOL Increasing
2.0
2.3
2.6
V
H
R DPOL
DPOL Pullup Resistance
500
1200
k ?
FAULT TIMER
V FLTTH
I FLT
Fault Threshold
Fault Pin Source Current
Q1
Q0
Q1
Q0
1.185
10.0
1.240
11.5
1.285
1.290
13.0
13.5
V
μA
(1)
(2)
(3)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Operating Ratings is not implied. The recommended Operating Ratings indicate
conditions at which the device is functional and the device should not be operated beyond such conditions. All voltages are with respect
to the potential at the AGND pin, unless otherwise specified.
All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are
100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC)
methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Typical numbers are at 25°C and represent the most likely norm.
Copyright ? 2008–2013, Texas Instruments Incorporated
5
Product Folder Links: LM3421 LM3421-Q1 LM3423 LM3423-Q1
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| LM3423MHX/NOPB | 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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