TPS40200-HT Datasheet, PDF (1/45 Pages) Texas Instruments – WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER

TPS40200-HT
www.ti.com
SGLS400B – OCTOBER 2009 – REVISED MAY 2010
WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER
Check for Samples: TPS40200-HT
FEATURES
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• Input Voltage Range 5.5 V to 52 V
• Output Voltage (700 mV to 87% V_IN)
• 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.
D OR HKJ PACKAGE
(TOP VIEW)
RC
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SS
2
COMP
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FB
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8 VDD
7 ISNS
6 GDRV
5 GND
(1) Custom temperature ranges available
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.
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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.
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