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TPS40200-HT Datasheet Preview

TPS40200-HT Datasheet

Wide Input Range Non-Synchronous Controller

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TPS40200-HT
www.ti.com
SGLS400C – OCTOBER 2009 – REVISED DECEMBER 2012
WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER
Check for Samples: TPS40200-HT
FEATURES
1
• Input Voltage Range 5.5 V to 52 V
• Output Voltage (700 mV to 87% VIN)
• 200-mA Internal P-Channel FET Driver
• Voltage Feed-Forward Compensation
• Undervoltage Lockout
• Programmable Fixed-Frequency
(35 kHz to 500 kHz) Operation
• Programmable Short-Circuit Protection
• Hiccup Overcurrent Fault Recovery
• Programmable Closed-Loop Soft Start
• 700-mV 1% Reference Voltage
• External Synchronization
APPLICATIONS
• Down-Hole Drilling
• High Temperature Environments
SUPPORTS EXTREME TEMPERATURE
APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Extreme (–55°C/210°C)
Temperature Range (1)
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
• Texas Instruments high temperature products
utilize highly optimized silicon (die) solutions
with design and process enhancements to
maximize performance over extended
temperatures.
(1) Custom temperature ranges available
D OR HKJ PACKAGE
(TOP VIEW)
HKQ PACKAGE
(TOP VIEW)
RC
1
SS 2
COMP 3
FB 4
8 VDD
7 ISNS
6 GDRV
5 GND
8
VDD
ISNS
GDRV
GND
5
1
RC
SS
COMP
FB
4
HKQ as formed or HKJ mounted dead bug
DESCRIPTION
The TPS40200 is a flexible nonsynchronous controller with a built-in 200-mA driver for P-channel FETs. The
circuit operates with inputs up to 52 V, with a power-saving feature that turns off driver current once the external
FET has been fully turned on. This feature extends the flexibility of the device, allowing it to operate with an input
voltage up to 52 V, without dissipating excessive power. The circuit operates with voltage-mode feedback and
has feed-forward input-voltage compensation that responds instantly to input-voltage change. The integral 700-
mV reference is trimmed to 2%, providing the means to accurately control low voltages. Clock frequency, soft
start, and overcurrent limit each are easily programmed by a single, external component. The part has
undervoltage lockout, and can be easily synchronized to other controllers or a system clock to satisfy sequencing
and/or noise-reduction requirements.
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009–2012, Texas Instruments Incorporated




etcTI

TPS40200-HT Datasheet Preview

TPS40200-HT Datasheet

Wide Input Range Non-Synchronous Controller

No Preview Available !

TPS40200-HT
SGLS400C – OCTOBER 2009 – REVISED DECEMBER 2012
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
TYPICAL APPLICATION
VIN
R5
C3
C4
R3
C5
TPS40200
1 RC VDD 8
2 SS ISNS 7
3 COMP GDRV 6
4 FB
R4 R1 R2
GND 5
C6
C1
RSENSE
Q1 L1
VOUT
C2
D1
Figure 1. 12-V to 5-V Buck Converter
With 94% Efficiency
100
90
80
V =8V
IN
V = 12 V
IN
V = 16 V
IN
70
60
VOUT = 5 V
50
0
0.5
1
1.5
2
2.5
3
Load Current - A
Figure 2. Typical Efficiency of Application Circuit 1
(Described in Application 1)
BARE DIE INFORMATION(1)(2)
DIE THICKNESS
15 mils.
BACKSIDE FINISH
Silicon with backgrind
BACKSIDE
POTENTIAL
GND
(1) Bond pad over active circuitry
(2) Bond recommendation: Use Au or Cu wire bond
BOND PAD
METALLIZATION COMPOSITION
Cu/Ni/Pd
BOND PAD
THICKNESS
15 µm
½
1350 mm
½
TPS40200HTA0
52 mm
0.0
0.0
|
52 mm
2
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Copyright © 2009–2012, Texas Instruments Incorporated
Product Folder Links: TPS40200-HT


Part Number TPS40200-HT
Description Wide Input Range Non-Synchronous Controller
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