LT8311IFE#PBF | Linear Technology
Synchronous rectifier controller with opto-coupler, TSSOP-20, Linear Technology LT8311IFE#PBF
NCNR (non cancelable / non returnable)
Voltage Monitoring, LT8311IFE#PBF, Linear Technology
The LT8311IFE#PBF is used on the secondary side of a forward converter to provide synchronous MOSFET control and output voltage feedback through an opto-coupler. The LT8311IFE#PBF’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 LT8311IFE#PBF 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 LT8311IFE#PBF. The LT8311IFE#PBF 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.
Features
- Output Power Good Indicator
- Integrated Soft-Start Function
Applications
- Offline and HV Car Battery Isolated Power Supplies
- Industrial, Automotive and Military Systems
| Filter | Property | Value |
|---|---|---|
| Input voltage | 30 V | |
| Enclosure | TSSOP-20 | |
| Assembly | SMD | |
| max. operating temperature | 150 °C | |
| Input voltage AC | 3.7-30 V | |
| min. operating temperature | -40 °C |
| Property | Value |
|---|---|
| MSL | MSL 1 |
| Original Packaging | Bar with 74 pieces |
| Customs tariff number | 85423990 |
| Property | Value |
|---|---|
| RoHS conform | Yes |
| Date of RoHS guidelines | 3/31/15 |
| SVHC free | Yes |