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LT3790EFE
IC REGULATOR
- Manufacturer
- Mfr. Part #LT3790EFE
- Package
- Datasheet
- In Stock7781
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Specifications
| Part Status | Obsolete |
| Output Type | Transistor Driver |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck-Boost |
| Number of Outputs | 2 |
| Output Phases | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.7V ~ 60V |
| Frequency - Switching | 200kHz ~ 700kHz |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Enable, Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 38-TSSOP-EP |
| Base Product Number | LT3790 |
Overview
Description
Key features include a constant current output with adjustable current levels, integrated PWM dimming, and an internal switch, allowing for simplified design and reduced component count. The LT3790EFE also supports both analog and digital dimming methods, providing flexibility for different lighting applications.
The device includes protections such as over-voltage, under-voltage, and thermal shutdown, ensuring reliability and longevity. Its compact package and excellent thermal performance make it ideal for space-constrained designs.
Overall, the LT3790EFE is a versatile and efficient solution for driving LED arrays in a variety of settings, enabling designers to achieve high performance while minimizing power consumption and heat generation.
Features
1. Wide Input Voltage Range: Operates from 4.5V to 60V, accommodating various power sources.
2. High Efficiency: Up to 95% efficiency, minimizing heat generation and improving reliability.
3. Integrated Switching MOSFETs: Reduces component count and PCB space requirements.
4. Constant Current Control: Ensures precise LED current regulation, enhancing brightness consistency.
5. Programmable Output Current: Allows customization of LED drive current through external resistors.
6. Wide Frequency Operation: Switching frequency can be adjusted from 200kHz to 1MHz, optimizing for size or efficiency.
7. Thermal Protection: Includes thermal shutdown and current limit features for safe operation.
8. Soft-Start Capability: Reduces inrush current during startup, protecting components.
9. Flexible Topology: Can be used in various configurations, including boost, buck, and buck-boost applications.
These features make the LT3790EFE suitable for a wide range of LED driving applications.
Package
Pinout
### Pin Count:
- 16 Pins
### Key Functions:
1. VIN: Input voltage supply for the IC.
2. SW: Switch node, connected to the inductor in boost or buck-boost configurations.
3. GND: Ground reference for the circuit.
4. CSN/ CSP: Current sense inputs for monitoring LED current.
5. ILIM: Input for setting the switch current limit.
6. COMP: Compensation node for stability in feedback loop.
7. Rset: Resistor input for setting the output current.
8. EN: Enable pin to turn the IC on/off.
9. FREQ: Frequency setting pin for adjusting the switching frequency.
10. VOUT: Output voltage for driving LEDs.
These pins facilitate various functions such as power supply input, current sensing, frequency adjustment, and output control, making the LT3790EFE versatile for LED driving applications.
Manufacturer
Application
Equivalent
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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