LM3402HVMM/NOPB National Semiconductor, LM3402HVMM/NOPB Datasheet - Page 13
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LM3402HVMM/NOPB
Manufacturer Part Number
LM3402HVMM/NOPB
Description
IC LED DRVR HP CONST CURR 8-MSOP
Manufacturer
National Semiconductor
Series
PowerWise®r
Type
High Power, Constant Currentr
Datasheet
1.LM3402MMNOPB.pdf
(28 pages)
Specifications of LM3402HVMM/NOPB
Constant Current
Yes
Topology
PWM, Step-Down (Buck)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive
Type - Secondary
High Brightness LED (HBLED), White LED
Frequency
1MHz
Voltage - Supply
6 V ~ 75 V
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
500mA
Internal Switch(s)
Yes
Efficiency
96%
For Use With
551600000-001A/NOPB - BOARD WEBENCH SO8/SOP LM3404/2551600003-001A - BOARD WEBENCH MSOP LM3402LM3402HVEVAL - BOARD EVALUATION FOR LM3402HV
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Other names
LM3402HVMM
LM3402HVMMTR
LM3402HVMMTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM3402HVMM/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
LOW POWER SHUTDOWN
The LM3402/02HV can be switched to a low power state (I
SD
MOSFET as shown in Figure 3. Low power MOSFETs like the
2N7000, 2N3904, or equivalent are recommended devices
for putting the LM3402/02HV into low power shutdown. Logic
gates can also be used to shut down the LM3402/02HV as
THERMAL SHUTDOWN
Internal thermal shutdown circuitry is provided to protect the
IC in the event that the maximum junction temperature is ex-
= 90 µA) by grounding the RON pin with a signal-level
FIGURE 3. Low Power Shutdown
IN-
13
long as the logic low voltage is below the over temperature
minimum threshold of 0.3V. Noise filter circuitry on the RON
pin can cause a few pulses with a longer on-time than normal
after RON is grounded or released. In these cases the OVP/
OCP comparator will ensure that the peak inductor or LED
current does not exceed 300 mV / R
ceeded. The threshold for thermal shutdown is 165°C with a
25°C hysteresis (both values typical). During thermal shut-
down the MOSFET and driver are disabled.
20192113
SNS
.
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