TEA1791AT/N1,118 NXP Semiconductors, TEA1791AT/N1,118 Datasheet - Page 7

IC CTLR SYNC RECTIFIER 8SOIC

TEA1791AT/N1,118

Manufacturer Part Number
TEA1791AT/N1,118
Description
IC CTLR SYNC RECTIFIER 8SOIC
Manufacturer
NXP Semiconductors
Series
GreenChip™r
Datasheet

Specifications of TEA1791AT/N1,118

Package / Case
*
Mounting Type
*
Voltage - Supply
8.5 V ~ 38 V
Operating Temperature
-20°C ~ 150°C
Mode
Discontinuous Conduction (DCM)
Input / Supply Voltage (max)
38 V
Input / Supply Voltage (min)
8.5 V
Supply Current
0.95 mA
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
- 40 C
Output Current
3 A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency - Switching
-
Current - Startup
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
935290157118

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TEA1791AT/N1,118
Manufacturer:
NXP/恩智浦
Quantity:
20 000
NXP Semiconductors
11. Application information
TEA1791AT
Product data sheet
A switched mode power supply with the TEA1791AT consists of a primary side
discontinuous conduction mode flyback controller, a transformer, and an output stage with
a feedback circuit. A MOSFET (Q
stage. This MOSFET is controlled by the TEA1791AT.
The timing for the synchronous rectifier switch is derived from the voltage sensed on the
SRSENSE pin. The resistor in the SRSENSE connection is needed to protect the
TEA1791AT from excessive voltages. The R
Higher values might impair correct timing and lower values may not provide sufficient
protection.
Fig 4.
Fig 5.
V
in
CONTROLLER
V
Application diagram high side rectification
Application diagram low side rectification
in
PRIMARY
CONTROLLER
SIDE
PRIMARY
All information provided in this document is subject to legal disclaimers.
SIDE
Rev. 01 — 7 June 2010
Q prim
TR
Q prim
Q sec
TR
sec
R SRSENSE
) is used for low conduction losses in the output
SRSENSE
DRIVER
GreenChip synchronous rectifier controller
V
SRSENSE
CC
TEA1791AT
GND
TEA1791AT
resistor should typically be 1 kΩ.
DRIVER
V
GND
CC
Q sec
SRSENSE
TEA1791AT
R SRSENSE
014aaa897
© NXP B.V. 2010. All rights reserved.
C out
V
out
014aaa896
C out
V
out
7 of 13

Related parts for TEA1791AT/N1,118