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TPS40490 датащи(PDF) 1 Page - Texas Instruments

номер детали TPS40490
подробное описание детали  5-V to 60-V WIDE-INPUT SYNCHRONOUS PWM BUCK CONTROLLER
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

TPS40490 датащи(HTML) 1 Page - Texas Instruments

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PGND
8
LDRVL
9
LDRVH
10
SW
11
HDRVL
12
HDRVH
13
BOOT
14
VIN
22
VDR
23
VDR_EXT
24
V3V
25
COMP
26
FB
27
SS
28
PAD
29
U1
TPS40490
0.1 F
C22
1nF
C3
1.0 F
C1
OUT
47nF
C14
68nF
C28
10000pF
C21
FB
1.2
R9
V3p3
2.2
R10
1.2
R12
2.2
R13
SW
20K
R27A
1.05K
R27B
FB
2200pF
C27
130
R27C
47uF
Co1
47uF
Co2
47uF
Co3
47uF
Co4
OUT
2.2 F
Ci1
2.2 F
Ci2
200K
R21A
10K
R21B
0
R27PM
V3p3
15K
R26
30pF
C26b
J6
JCOMP
0.1 F
C24A
VDR_EXT
4.7 F
C24
VDR_EXT
GND
GND
1.0uF
C25
GND
1
2
1 H
L1
J2
GND
J1
J3
GND
J4
GND
GND
47uF
Co5
47uF
Co6
2.2 F
Ci4
2.2 F
Ci3
200K
R20A
10K
R20B
1.0uF
C23
1nF
C26
SW
VIN
COMP
0.1 F
Co7
VIN
VIN
VIN
GND
0
R14
Q1
BSC123N08NS3G
Q2
BSC123N08NS3G
220uF
C2
NC
20
R1
OUT
D2
BAT43XV2
R2
DNI
C4
DNI
3.3V
D1
GND
TPS40490
www.ti.com
SLVSCB4 – OCTOBER 2013
5-V to 60-V WIDE-INPUT SYNCHRONOUS PWM BUCK CONTROLLER
Check for Samples: TPS40490
1
FEATURES
Wide-Input Voltage Range from 5 V to 60 V
Programmable Closed Loop Soft-Start
600-mV Reference Voltage With ±1% Accuracy
Supports Pre-Biased Outputs
and External Modulation Capabilities
Thermal Shutdown at 160°C With Hysteresis
Programmable UVLO and Hysteresis
Power Good Detector
Voltage Mode Control With Feed Forward and
Integrated Diode for Bootstrap Supply With
High Gain Bandwidth Error Amplifier
UVLO
100-kHz to 5.4-MHz Programmable Frequency
28-Pin 5-mm × 5-mm QFN (RHD) Package
Smart Low and High Side Driver
APPLICATIONS
Factory Selectable Gate Drive Voltage VDR
With External Drive Capability and UVLO
POL Modules
Protection
Wide Input Voltage, High-Power Density
Matched Low and High Side Propagation
DC/DC Converters for Industrial, Networking
Delay
and Telecomm Equipment
Programmable Fixed Delay Dead-time
Notebook and Tablet Computers
Low-Side FET Sensing Overcurrent Protection
Envelope Tracking Systems
and High-Side FET Sensing Short-Circuit
Protection
TYPICAL APPLICATION (Non-Isolated 24V-12V Supply)
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2013, 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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