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参数资料
| 型号： | LM3445-120VFLBK/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 3/40页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LED DRIVER LM3445 |
| 标准包装： | 1 |
| 系列： | PowerWise® |
| 电流 - 输出 / 通道： | 365mA |
| 输出及类型： | 1，隔离 |
| 输出电压： | 20V |
| 特点： | 可调光，三端双向可控硅 |
| 输入电压： | 90 ~ 135VAC |
| 已供物品： | 板 |
| 已用 IC / 零件： | LM3445 |
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SNVS570L – JANUARY 2009 – REVISED MAY 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ABSOLUTE MAXIMUM RATINGS
BLDR to GND
V CC , GATE, FLTR1 to GND
ISNS to GND
ASNS, DIM, FLTR2, COFF to GND
COFF Input Current
Continuous Power Dissipation (3)
(1) (2)
-0.3V to +17V
-0.3V to +14V
-0.3V to +2.5V
-0.3V to +7.0V
100mA
Internally Limited
ESD Susceptibility, HBM
(4)
2 kV
Junction Temperature (T J-MAX )
Storage Temperature Range
Maximum Lead Temperature Range (Soldering)
150°C
-65°C to +150°C
260°C
(1)
(2)
(3)
(4)
Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which the
device is intended to be functional, but device parameter specifications may not be guaranteed. For ensured specifications and test
conditions, see the Electrical Characteristics. All voltages are with respect to the potential at the GND pin, unless otherwise specified.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at T J = 165°C (typ.) and
disengages at T J = 145°C (typ).
Human Body Model, applicable std. JESD22-A114-C.
OPERATING CONDITIONS
V CC
Junction Temperature
8.0V to 12V
? 40°C to +125°C
ELECTRICAL CHARACTERISTICS
Limits 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 +125°C). Minimum and Maximum limits are specified through test, design, or statistical correlation.
Typical values represent the most likely parametric norm at T J = +25oC, and are provided for reference purposes only.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
BLEEDER
R BLDR
Bleeder resistance to GND
I BLDR = 10mA
230
325
?
V CC SUPPLY
I VCC
V CC-UVLO
Operating supply current
Rising threshold
Falling threshold
6.0
2.00
7.4
6.4
2.85
7.7
mA
V
COFF
Hysterisis
1
V COFF
R COFF
t COFF
Time out threshold
Off timer sinking impedance
Restart timer
1.225
1.276
33
180
1.327
60
V
?
μs
CURRENT LIMIT
V ISNS
t ISNS
ISNS limit threshold
Leading edge blanking time
1.174
1.269
125
1.364
V
ns
Current limit reset delay
180
μs
ISNS limit to GATE delay
Copyright ? 2009–2013, Texas Instruments Incorporated
ISNS = 0 to 1.75V step
33
ns
3
Product Folder Links: LM3445
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