TPS40210_0804

Manufacturer Part NumberTPS40210_0804
Description4.5-V TO 52-V INPUT CURRENT MODE BOOST CONTROLLER
ManufacturerTI [Texas Instruments]
TPS40210_0804 datasheet
 
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4.5-V TO 52-V INPUT CURRENT MODE BOOST CONTROLLER
FEATURES
1
For Boost, Flyback, SEPIC, LED Drive Apps
Wide Input Operating Voltage: 4.5 V to 52 V
Adjustable Oscillator Frequency
Fixed Frequency Current Mode Control
Internal Slope Compensation
Integrated Low-Side Driver
Programmable Closed Loop Soft Start
Overcurrent Protection
External Synchronization Capable
Reference700-mV (TPS40210), 263-mV
(TPS40211)
Low Current Disable Function
APPLICATIONS
LED Lighting
Industrial Control Systems
Battery Powered Systems
V
IN
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.
CONTENTS
Device Ratings
Electrical Characteristics
Typical Characteristics
Terminal Information
Application Information
Additional References
Design Examples
DESCRIPTION
The TPS40210 and TPS40211 are wide-input voltage
(4.5 V to 52 V), non-synchronous boost controllers.
They are suitable for topologies which require a
grounded source N-channel FET including boost,
flyback, SEPIC and various LED Driver applications.
The device features include programmable soft start,
overcurrent protection with automatic retry and
programmable oscillator frequency. Current mode
control provides improved transient response and
simplified loop compensation. The main difference
between the two parts is the reference voltage to
which the error amplifier regulates the FB pin.
TPS40210
1
RC
VDD
10
2
SS
BP
9
3
DIS/EN
GDRV
8
4
COMP
ISNS
7
R
SENSE
5
FB
6
GND
TPS40210, TPS40211
SLUS772A – MARCH 2008 – REVISED APRIL 2008
2
3
5
10
12
25
26
V
OUT
UDG-07110
Copyright © 2008, Texas Instruments Incorporated

TPS40210_0804 Summary of contents

  • Page 1

    TO 52-V INPUT CURRENT MODE BOOST CONTROLLER FEATURES 1 For Boost, Flyback, SEPIC, LED Drive Apps Wide Input Operating Voltage: 4 Adjustable Oscillator Frequency Fixed Frequency Current Mode Control Internal Slope Compensation Integrated Low-Side ...

  • Page 2

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the ...

  • Page 3

    ELECTRICAL CHARACTERISTICS T = – 125 all parameters at zero power dissipation (unless otherwise noted) J VDD dc PARAMETER VOLTAGE REFERENCE Feedback voltage range V FB INPUT SUPPLY V Input voltage ...

  • Page 4

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... ELECTRICAL CHARACTERISTICS (continued – 125 all parameters at zero power dissipation (unless otherwise noted) J VDD dc PARAMETER CURRENT SENSE ...

  • Page 5

    FREQUENCY vs TIMING RESISTANCE 1200 68 pF 33pF 100 800 100pF 600 220 pF 400 200 470 pF 0 100 200 300 400 500 600 R - Timing Resistance - kW T Figure 1. QUIESCENT CURRENT vs JUNCTION TEMPERATURE ...

  • Page 6

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... TYPICAL CHARACTERISTICS (continued) REFERENCE VOLTAGE CHANGE vs JUNCTION TEMPERATURE 0 0.2 0.0 -0.2 -0.4 4 -0.8 -40 -25 - ...

  • Page 7

    TYPICAL CHARACTERISTICS (continued) OVERCURRENT THRESHOLD vs INPUT VOLTAGE 155 154 153 152 151 150 149 148 147 146 145 – Input Voltage – V VDD Figure 9. OSCILLATOR AMPLITUDE vs JUNCTION TEMPERATURE ...

  • Page 8

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... TYPICAL CHARACTERISTICS (continued) FB BIAS CURRENT vs JUNCTION TEMPERATURE 180 160 140 120 100 -40 -25 - – Junction Temperature ...

  • Page 9

    TYPICAL CHARACTERISTICS (continued) REGULATOR VOLTAGE vs JUNCTION TEMPERATURE 8.8 8.6 I LOAD 8.4 8.2 8.0 7.8 I LOAD 7.6 7.4 -40 -25 - – Junction Temperature – ° Figure 17. Copyright © ...

  • Page 10

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... TERMINAL I/O DESCRIPTION NAME NO. COMP 4 O Error amplifier output. Connect control loop compensation network between COMP pin and FB pin. Disable pin. Pulling this pin high, places the ...

  • Page 11

    DIS/EN 3 COMP Soft Start and Overcurrent OC Fault Enable E UVLO Copyright © 2008, Texas Instruments Incorporated FUNCTIONAL BLOCK DIAGRAM + + LDO E/A 700 mV SS Ref Oscillator and Slope ...

  • Page 12

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... Minimum On-Time and Off Time Considerations The TPS40210 has a minimum off time of approximately 200 ns and a minimum on time of 300 ns. These two constraints place limitations ...

  • Page 13

    Setting the Oscillator Frequency The oscillator frequency is determined by a resistor and capacitor connected to the RC pin of the TPS40210. The capacitor is charged to a level of approximately V discharged by a transistor internal to the ...

  • Page 14

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... Amplitude > 20 Duty Cycle < 50% Frequency > Controller Frequency Figure 21. Diode Connected Synchronization Current Sense and Overcurrent The tps40210 and TPS40211 are current ...

  • Page 15

    L V ´ ´ ISNS ´ ´ ´ SW OUT(oc) If the converter is operating in continuous conduction mode R V ISNS R = ISNS I I æ ö æ ö ...

  • Page 16

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... when operating in continuous mode at 50% duty cycle or greater. For design purposes, some margin should be applied to the actual value of the current sense resistor ...

  • Page 17

    V ) and rise from there. The point at which the output voltage starts to rise ( point where the V ramp passes the point where it is commanding more output ...

  • Page 18

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... Also take note Its value varies depending on input conditions. For example, a converter operating from a BP slowly rising input initializes fairly low ...

  • Page 19

    ´ ´ DCHG SS(dchg æ ç ´ ´ CHG SS(chg ç è CHG DCHG RSTRT min Copyright © ...

  • Page 20

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... BP Regulator The TPS40210/11 has an on board linear regulator the supplies power for the internal circuitry of the controller, including the gate driver. This regulator has a nominal output ...

  • Page 21

    Control Loop Considerations There are two methods to design a suitable control loop for the TPS4021x. The first and preferred if equipment is available is to use a frequency response analyzer to measure the open loop modulator and power ...

  • Page 22

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... ( ) ´ 19 OUT 0.13 L ´ ´ R OUT ...

  • Page 23

    ´ ´ The error amplifier GBWP will usually be higher, but is ensured by design least 1.5 MHz. If the gain required in Equation 25 multiplied ...

  • Page 24

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... TPS40211 The only difference between the TPS40210 and the TPS40211 is the reference voltage that the error amplifier uses to regulate the output voltage. The TPS40211 uses a 250-mV reference ...

  • Page 25

    Related Devices The following devices have characteristics similar to the TPS40210 and may be of interest. DEVICE TPS6100X Single- and Dual-Cell Boost Converter with Strart-up into Full Load TPS6101X High Efficiency 1-Cell and 2-Cell Bost Converters TPS6300X High Effiency ...

  • Page 26

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... 12-V to 24-V Non-Synchronous Boost Regulator The following example illustrates the design process and component selection for a 12-V to 24-V non-synchronous boost regulator using the TPS40210 controller. + Figure ...

  • Page 27

    TPS40210 Design Example Specifications (continued) PARAMETER SYSTEM CHARACTERISTICS f Switching frequency SW Peak efficiency PK Full load efficiency T Operating temperature range OP MECHANICAL DIMENSIONS W Width L Length h Height Step-By-Step Design Procedure Duty Cycle Estimation The duty ...

  • Page 28

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... I OUT(max » + Lpeak RIPPLE(Vinmin MAX A 10- H inductor with a minimum RMS current rating of 6.13 A and ...

  • Page 29

    ripple C > 60mV 600kHz ´ ´ ripple 60mV IN ripple ESR < 1.02 A ´ ´ ( ...

  • Page 30

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... P FET R < 6.13 2 ´ I ´ D RMS A target MOSFET R of 9.8 mΩ is calculated to ...

  • Page 31

    K 0.356 = = = COMP K 2. set the mid-band gain of the error amplifier ´ COMP 18.7 kΩ selected. Place ...

  • Page 32

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... TEST DATA GAIN AND PHASE vs FREQUENCY 80 60 Phase Gain -20 -40 -60 -80 100 1000 – Frequency – Figure 31. ...

  • Page 33

    List of Materials REFERENCE DESCRIPTION DESIGNATOR C1 100 F, aluminum capacitor, SM, ± 20 2200 pF, ceramic capacitor X7R, 20% C3 100 pF, ...

  • Page 34

    TPS40210, TPS40211 SLUS772A – MARCH 2008 – REVISED APRIL 2008......................................................................................................................................................... 12-V Input, 700-mA LED Driver 35-V LED String Application Schematic V IN C21 C1 C2 Loop Response Injection R4 R23 R13 LEDC R6 PWM Dimming Figure 36. 12-V ...

  • Page 35

    List of Materials REFERENCE TYPE DESIGNATOR C1,C2 C3 Capacitor C10 C11 C13 C14 C21 D1 D2 Diode D3 L1 Inductor Q1 MOSFET Resistor R11 R13 R15 R24 R23 ...

  • Page 36

    PACKAGING INFORMATION (1) Orderable Device Status TPS40210DGQ ACTIVE TPS40210DGQR ACTIVE TPS40210DRCR ACTIVE TPS40210DRCT ACTIVE TPS40211DGQ ACTIVE TPS40211DGQR ACTIVE TPS40211DRCR ACTIVE TPS40211DRCT ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: ...

  • Page 37

    TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TPS40210DGQR MSOP- DGQ Power PAD TPS40210DRCR SON DRC TPS40210DRCT SON DRC TPS40211DGQR MSOP- DGQ Power PAD PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter ...

  • Page 38

    Device Package Type TPS40210DGQR MSOP-PowerPAD TPS40210DRCR SON TPS40210DRCT SON TPS40211DGQR MSOP-PowerPAD PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DGQ 10 2500 DRC 10 3000 DRC 10 250 DGQ 10 2500 Pack Materials-Page 2 ...

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    Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...