TPS40200_16 Datasheet, PDF (1/46 Pages) Texas Instruments – Wide Input Range Non-Synchronous Voltage Mode Controller

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TPS40200
SLUS659G – FEBRUARY 2006 – REVISED NOVEMBER 2014
TPS40200 Wide Input Range Non-Synchronous Voltage Mode Controller
1 Features
•1 Input Voltage Range 4.5 V to 52 V
• Output Voltage (700 mV to 90% V_IN)
• 200-mA Internal P-channel FET Driver
• Voltage Feed-Forward Compensation
• Undervoltage Lockout
• Programmable Fixed-Frequency (between 35 kHz
and 500 kHz) Operation
• Programmable Short-Circuit Protection
• Hiccup Overcurrent Fault Recovery
• Programmable Closed-Loop Soft-Start
• 700 mV 1% Reference Voltage
• External Synchronization
• Small 8-Pin SOIC (D) and VSON (DRB) Packages
2 Applications
• Industrial Control
• Distributed Power Systems
• DSL/Cable Modems
• Scanners
• Telecom
3 Description
The TPS40200 is a flexible, non-synchronous
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. The TPS40200 is available in an
8-pin SOIC and an 8-pin VSON package and
supports many of the features of more complex
controllers. Clock frequency, soft-start, and
overcurrent limits are each 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS40200
VSON (8)
SOIC (8)
3.00 mm x 3.00 mm
4.90 mm x 3.90 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
V_IN
TPS40200
1 _RC
VDD 8
Efficiency vs Output Current
100
V_OUT = 5 V
90
80
2 SS
ISNS 7
3 COMP GDRV 6
4 FB
GND 5
V_OUT
70
60
50
0
V_IN (V)
16
12
8
0.5
1.0
1.5
2.0
2.5
Load Current (A)
UDG-11201
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.