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參數資料
| 型號： | TPS55010RTET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, PQCC16 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, WQFN-16 |
| 文件頁數： | 1/40頁 |
| 文件大小： | 1417K |
| 代理商： | TPS55010RTET |
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0
10
20
30
40
50
60
70
80
90
100
0.00
0.05
0.10
0.15
0.20
0.25
0.30
Output Current (A)
Efficiency
(%)
VIN = 5V
VOUT = 5V
FSW = 350kHz
G040
PH
VIN
GND
BOOT
VSENSE
COMP
TPS55010
EN
RT/CLK
SS
FAULT
C
ss
R
t
C
boot
T1
C
IN
3 V
to
5.5 V
+
V
O
_
1:2.5
C
O
C
PRI
R
LS
R
HS
5 V
200mA
SLVSAV0A
– APRIL 2011 – REVISED JUNE 2011
2.95V To 6V Input, 2W, Isolated DC/DC Converter with Integrated FETs
Check for Samples: TPS55010
1
FEATURES
DESCRIPTION
The TPS55010 is a transformer driver designed to
23
Isolated Fly-Buck
Topology
provide isolated power for isolated interfaces, such as
Primary Side Feedback
RS-485 and RS-232, from 3.3V or 5V input supply.
100 kHz to 2000 kHz Switching Frequency
The device uses fixed frequency current mode control
Synchronizes to External Clock
and half bridge power stage with primary side
Adjustable Slow Start
feedback to regulate the output voltage for power
Adjustable Input Voltage UVLO
levels
up
to
2W.
The
switching
frequency
is
Open Drain Fault Output
adjustable from 100 kHz to 2000 kHz so solution size,
efficiency and noise can be optimized. The switching
Cycle-by-Cycle Current Limit
frequency is set with a resistor or is synchronized to
Thermal Shutdown Protection
external clock using the RT/CLK pin. To minimize
3 mm x 3 mm 16 Pin QFN Package
inrush currents, a small capacitor can be connected
to the SS pin. The EN pin can be used as an enable
APPLICATIONS
pin or to increase the default input UVLO voltage
from 2.6V.
Noise Immunity in PLCs, Data Acquisition and
Measurement Equipment
With the same transformer the TPS55010 can
Isolated RS-232 and RS-485 Communication
provide a solution for different input and output
Channels
voltage combinations by adjusting the primary side
voltage. Off the shelf transformers are available to
Powers Line Drivers, ISO Amplifiers, Sensors,
provide single positive, or dual positive and negative
CAN Transceivers
output voltages.
Floating Supplies for IGBT Gate Drivers
Promotes Safety in Medical Equipment
The TPS55010 is available in a 3 mm x 3 mm 16 pin
QFN package with thermal pad.
Figure 1. SIMPLIFIED SCHEMATIC
Figure 2. Efficiency vs Load Current
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
Fly-Buck is a trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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