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LM3421MH
Led Driver, 2 Outputs, Boost, Buck, Flyback, SEPIC, 4.5V-75V in, 2MHz switch, 75V out, TSSOP-16
- Manufacturer:
- TEXAS INSTRUMENTS TEXAS INSTRUMENTS
- Manufacturer Part No:
- LM3421MH
- Order Code:
- 1643506
Product Information
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- :
- Boost, Buck, Buck-Boost, Flyback, SEPIC
- :
- 4.5V
- :
- 75V
- :
- 72V
- :
- 5A
- :
- 2MHz
- :
- 1Outputs
- :
- SMD
- :
- TSSOP
- :
- 16Pins
- :
- -40°C
- :
- 125°C
- :
- -
- :
- AEC-Q100
- :
- MSL 1 - Unlimited
Technical Docs (0)
Product Overview
The LM3421MH is a versatile high voltage N-channel Controller for constant current LED drivers. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. This flexibility, along with an input voltage rating of 75V, makes the LM3421 device ideal for illuminating LEDs in a large family of applications. Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible. The device uses predictive off-time (PRO) control, which is a combination of peak current-mode control and a predictive off-timer. This method of control eases the design of loop compensation while providing inherent input voltage feed-forward compensation. The devices include a high-voltage start-up regulator that operates over a wide input range of 4.5 to 75V. The internal PWM controller is designed for adjustable switching frequencies of up to 2MHz, thus enabling compact solutions.
- High-side adjustable current sense
- Input under-voltage and output over-voltage protection
- PWM and analogue dimming
- Cycle-by-cycle current limit
- Programmable switching frequency
- Zero current shutdown and thermal shutdown
- 2R, 1A Peak MOSFET gate drive
- Green product and no Sb/Br
Applications
LED Lighting, Automotive, Industrial
No Longer Stocked
$4.16
(
$4.58
Inc. GST)
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Multiple: 1 Minimum: 1
| Quantity | Price (Incl GST) | Your Price |
|---|---|---|
| 1+ | $4.16 ($4.58) | ( ) |
| 10+ | $3.75 ($4.13) | ( ) |
| 25+ | $3.55 ($3.91) | ( ) |
| 100+ | $2.92 ($3.21) | ( ) |
| 250+ | $2.62 ($2.88) | ( ) |
| 500+ | $2.52 ($2.77) | ( ) |
| 1000+ | $2.10 ($2.31) | ( ) |
| 2500+ | $2.09 ($2.30) | ( ) |
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