LT8714
RECOMMENDED FOR NEW DESIGNSBipolar Output Synchronous Controller with Seamless Four Quadrant Operation
- Part Models
- 4
- 1ku List Price
- Starting From $5.54
Overview
- Bipolar Output Cleanly Transitions Through 0V
- Output Can Source or Sink Current for Any Output Voltage
- CTRL Pin Externally Sets Output Voltage
- Wide Input Range: 4.5V to 80V
- Power Good Indication Pin (PG)
- Switching Frequency Up to 750kHz
- Can Be Synchronized to an External Clock
- High Gain EN Pin Accepts Slowly Varying Input Signals
- 20-Lead TSSOP Exposed Pad Package
The LT8714 is a synchronous PWM DC/DC controller designed for a four quadrant output converter. The output voltage cleanly transitions through zero volts with sourcing and sinking output current capability.
The LT8714 is ideal for regulating to positive, negative, or zero volts when configured for the novel four quadrant topology. Applications include four quadrant power supplies, high power bidirectional current sources, active loads, and high power, low frequency signal amplification. In addition, the LT8714 incorporates a power good feature to let the user know if VOUT is above or below its target regulation voltage.
The LT8714’s switching frequency range can be programmed between 100kHz and 750kHz via a resistor from the RT pin to GND. A SYNC pin is also provided if the user would like to synchronize the part to an external clock. Additional features such as current limiting and soft-start are included. The LT8714 is available in a 20‑lead TSSOP package.
Applications
- Four Quadrant Power Supplies
- Bidirectional Current Sources
- High Power, Low Frequency Signal Amplification
- Test and Measurement
- Electronic Window Tinting
Documentation
Data Sheet 1
User Guide 1
Design Note 1
Technical Articles 1
Product Selector Card 2
Analog Dialogue 1
Rarely Asked Question 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT8714EFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT8714EFE#TRPBF | 20-Lead TSSOP w/ EP | ||
| LT8714IFE#PBF | 20-Lead TSSOP w/ EP | ||
| LT8714IFE#TRPBF | 20-Lead TSSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LT8714EFE#PBF | PRODUCTION | |
| LT8714EFE#TRPBF | PRODUCTION | |
| LT8714IFE#PBF | PRODUCTION | |
| LT8714IFE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice 2
- LT8714 Demo Circuit - Synchronous Four Quadrant Converter with Power Good Indication (10-14V to -5V to 5V @ -5A to 5A)
- LT8714 Demo Circuit - Synchronous Four Quadrant Converter Using Uncoupled Inductors (10-14V to -5V to 5V @ -5A to 5A)
Models for the following parts are available in LTspice:
- LT8714
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LT8714EFE Demo Board | Synchronous 4-Quadrant Controller, 10V ≤ VIN ≤ 14V, -5V ≤ VOUT ≤ 5V @ 5A