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ANALOG DEVICES LT3952AHFE#PBF
LED Driver, DC / DC, Boost, 3 MHz, TSSOP-EP-28, 3 to 42 V, -40 to 150°C, SMD
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- LT3952AHFE#PBF
- Order Code:
- 4018445
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- Technical Datasheet:
- LT3952AHFE#PBF Datasheet
- ECAD / MCAD
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Product Information
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- Boost
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- -
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- 3V
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- 42V
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- 60V
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- -
- :
- 3MHz
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- Surface Mount
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- TSSOP-EP
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- 28Pins
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- -40°C
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- 150°C
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- -
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- -
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- MSL 1 - Unlimited
Technical Documents (1)
Product Overview
LT3952 is a current mode step-up DC/DC converter. It is specifically designed to drive high power LEDs in multiple configurations. It combines input and output current regulation loops with output voltage regulation to operate as a flexible current/voltage source. Programmable switching frequency with optional spread-spectrum modulation provides EMI reduction, while still allowing optimization of the external components for efficiency or component size. The LED current is programmable with an external sense resistor, and can be adjusted from zero to full scale with a voltage at the CTRL pin. The external PWM input provides LED ON/OFF control and 4000:1 dimming ratio, and an internal PWM generator delivers the efficiency of PWM dimming to standalone or I/O limited applications. It is used in application such as display backlighting, automotive and avionic lighting, accurate current-limited voltage regulators etc.
- Wide input voltage range is 3V to 42V, programmable open-LED protection with OPENLED flag
- Maximum power switch current limit is 4.5A typical
- Current sense common mode input range is 0V to 60V
- PMOS switch driver for PWM and output disconnect
- LED short-circuit protection and SHORTLED flag
- Internal spread spectrum frequency modulation
- Constant-current and constant-voltage regulation
- Input current limit and monitor, programmable VIN undervoltage and overvoltage lockout
- Switching frequency is 215KHz typical at (RT = 470K)
- Operating junction temperature is -40°C to 150°C, package style is 28-lead plastic TSSOP
Footnotes
ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party
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85 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 4/21/25
85 deliver in 3-4 business days from our UK warehouse
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥1,719.02
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¥1,890.92
Inc. JCT)
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| 1+ | ¥1,719.02 (¥1,890.92) | ( ) |
| 10+ | ¥1,174.80 (¥1,292.28) | ( ) |
| 50+ | ¥945.57 (¥1,040.13) | ( ) |
| 100+ | ¥872.47 (¥959.72) | ( ) |
| 250+ | ¥862.73 (¥949.00) | ( ) |
| 500+ | ¥852.98 (¥938.28) | ( ) |
| 1000+ | ¥843.23 (¥927.55) | ( ) |
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