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LINEAR TECHNOLOGY  LT8311MPFE#PBF  Special Function IC, Secondary Side Synchronous Rectifier Driver, 3.7 V to 30 V in, TSSOP-20

LINEAR TECHNOLOGY LT8311MPFE#PBF
LINEAR TECHNOLOGY LT8311MPFE#PBF
Manufacturer Part No:
LT8311MPFE#PBF
Order Code:
2426279
Technical Datasheet:
See all Technical Docs
LINEAR TECHNOLOGY LT8311MPFE#PBF
LINEAR TECHNOLOGY LT8311MPFE#PBF

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT8311MPFE#PBF is a Synchronous Rectifier Controller that is used on the secondary side of a forward converter to provide synchronous MOSFET control and output voltage feedback through an opto-coupler. The LT8311's unique preactive mode allows control of the secondary-side MOSFETs without requiring a traditional pulse transformer for primary- to secondary-side communication. In preactive mode, the output inductor current operates in discontinuous conduction mode (DCM) at light load. If forced continuous mode (FCM) operation is desired at light load, the LT8311 can, alternatively, be used in SYNC mode, where a pulse transformer is required to send synchronous control signals from the primary-side IC to the LT8311. The LT8311 offers a full featured opto-coupler controller, incorporating a 1.5% reference, a transconductance error amplifier and a 10mA opto-driver. Power good monitoring and output soft-start/overshoot control are also included.
  • Preactive mode - No pulse transformer required, DCM operation at light load
  • SYNC mode - FCM or DCM operation at light load, Achieves highest efficiency
  • 1.5% Feedback voltage reference
  • 10mA Opto-coupler driver
  • Output power good indicator
  • Integrated soft-start function
  • Green product and no Sb/Br

Product Information

IC Function:
Secondary Side Synchronous Rectifier Driver
Supply Voltage Min:
3.7V
Supply Voltage Max:
30V
IC Package Type:
TSSOP
No. of Pins:
20Pins
Operating Temperature Min:
-55°C
Operating Temperature Max:
150°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Signal Processing
  • Power Management
  • Automotive
  • Aerospace, Defence, Military

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.00027

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