TEA1792TS Datasheet PDF - NXP Semiconductors
| Part Number | TEA1792TS | |
| Description | GreenChip synchronous rectifier controller | |
| Manufacturers | NXP Semiconductors | |
| Logo |  |
|
|
There is a preview and TEA1792TS download ( pdf file ) link at the bottom of this page. Total 13 Pages | ||
Preview 1 page No Preview Available !
TEA1792TS
GreenChip synchronous rectifier controller
Rev. 3 — 29 January 2014
Product data sheet
1. General description
The TEA1792TS is a member of the new generation of Synchronous Rectifier (SR)
controller ICs for switched mode power supplies. Its high level of integration allows the
design of a cost-effective power supply with a very low number of external components.
The TEA1792TS is a controller IC dedicated to synchronous rectification on the
secondary side of discontinuous conduction mode and quasi-resonant flyback converters.
The TEA1792TS is fabricated in a Silicon-On-Insulator (SOI) process.
2. Features and benefits
2.1 Distinctive features
Accurate synchronous rectification functionality
Wide supply voltage range (8.5 V to 38 V)
High level of integration, resulting in a very low external component count
High driver output voltage of 10 V to drive all MOSFET brands to the lowest RDSon
Selectable regulation level for driver stage
2.2 Green features
Low current consumption
High system efficiency from no load to full load
2.3 Protection features
UnderVoltage Protection (UVP)
3. Applications
The TEA1792TS is intended for adapters. The device can also be used in all other
discontinuous conduction mode systems and quasi-resonant flyback systems that
demand a highly efficient and cost-effective solution.
|
| |
 
NXP Semiconductors
TEA1792TS
GreenChip synchronous rectifier controller
VSRSENSE
0V
Vdeact(drv) (-12 mV typ.)
Vreg(drv) (-42 mV/-30 mV typ.)
Vact(drv) (-220 mV typ.)
primary
current
0A
secondary
current
0A
VDRIVER
Fig 3. Synchronous rectification signals
0V
aaa-000137
The level of the driver regulation voltage Vreg(drv) can be selected using the SELREG pin.
When this SELREG pin is grounded, the typical Vreg(drv) equals 42 mV. When the
SELREG pin is left open, the Vreg(drv) level equals 30 mV.
Internally, the SELREG pin has a pull-up current source of 10 A. When this pin is short
circuited to ground, the pin selects the lowest Vreg(drv). If the pin is left open, the highest
Vreg(drv) value is selected.
If the secondary stroke of the flyback converter is shorter than tact(sr)(min) short time (1.8 s
typical), the driver output is disabled. This action guarantees stable operation for very low
duty cycles. When the secondary stroke increases above tact(sr)(min), long time (2.1 s
typical), the driver output is again enabled.
7.4 Supply management
All internal reference voltages are derived from a temperature compensated, on-chip
band gap circuit.
7.5 Driver
The driver circuit to the external power MOSFET gate has a typical source capability of
400 mA and a typical sink capability of 2.7 A. These capabilities permit fast switch-on and
switch-off of the power MOSFET for efficient operation. The source stage is coupled to the
timer (see Figure 1). When the timer has finished, the source capability is reduced to a
small current (5 mA typical) capable of keeping the driver output voltage at its level.
TEA1792TS
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 29 January 2014
© NXP B.V. 2014. All rights reserved.
5 of 13
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TEA1792TS electronic component. |
| Information | Total 13 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ TEA1792TS.PDF Datasheet ] | |
Share Link :
Electronic Components Distributor
|
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. |
| SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
| Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
| Part Number | Description | MFRS |
| TEA1792TS | The function is GreenChip synchronous rectifier controller. NXP Semiconductors | |
Semiconductors commonly used in industry:
1N4148 |
BAW56 |
1N5400 |
NE555 | | ||
Quick jump to:
TEA1
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA | ||