TPS40200-Q1_16 Datasheet, PDF (1/40 Pages) Texas Instruments – Wide-Input-Range Nonsynchronous Voltage-Mode Controller

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TPS40200-Q1
SLUS739F – SEPTEMBER 2006 – REVISED JANUARY 2016
TPS40200-Q1 Wide-Input-Range Nonsynchronous Voltage-Mode Controller
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
– Device HBM ESD Classification Level 1B
– Device CDM ESD Classification Level C6
• 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 (UVLO)
• 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
• Small 8-Pin SOIC (D) Package
2 Applications
• Automotive Controls
• Automotive Power Supplies
• Distributed Power Systems
3 Description
The TPS40200-Q1 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 turned on
fully. 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-Q1 is available in an 8-pin SOIC package
and supports many of the features of more complex
controllers. Clock frequency, soft start, and
overcurrent limit are each easily programmed by a
single, external component. The device has
undervoltage lockout (UVLO) 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-Q1
SOIC (8)
3.91 mm × 4.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
V_IN
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
R_SENSE
Q1 L1
V_OUT
C2
D1
Typical Efficiency of Application Circuit
100
V_OUT = 5 V
90
80
70
60
50
0
V_IN (V)
16
12
8
0.5
1.0
1.5
2.0
2.5
Load Current (A)
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.