SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 D Qualified for Automotive Applications D Customer-Specific Configuration Control D D D D D D D D Can Be Supported Along With Major-Change Approval Low-Cost Single-Channel High-Speed MOSFET Driver 15-µA Max ICC (TPS2828, TPS2829) 25-ns Max Rise/Fall Times and 40-ns Max Propagation Delay . . . 1-nF Load 2-A Peak Output Current 4-V to 14-V Driver Supply-Voltage Range, Internal Regulator Extends Range to 40 V (TPS2816, TPS2817, TPS2818, TPS2819) 5-pin SOT-23 Package −40°C to 125°C Ambient-Temperature Operating Range Highly Resistant to Latch-Ups description TPS2816, TPS2817 TPS2818, TPS2819 DBV PACKAGE (TOP VIEW) VDD 1 GND 2 IN 3 5 VCC 4 OUT TPS2828, TPS2829 DBV PACKAGE (TOP VIEW) NC 1 GND 2 IN 3 5 VCC 4 OUT NC − No internal connection The TPS28xx single-channel high-speed MOSFET drivers are capable of delivering peak currents of up to 2 A into highly capacitive loads. High switching speeds (tr and tf = 14 ns typ) are obtained with the use of BiCMOS outputs. Typical threshold switching voltages are two-thirds and one-third of VCC. The design inherently minimizes shoot-through current. A regulator is provided on TPS2816 through TPS2819 devices to allow operation with supply inputs between 14 V and 40 V. The regulator output can be used to power other circuits, provided power dissipation does not exceed package limitations. If the regulator is not required, VDD (the regulator input) should be connected to VCC. The TPS2816 and TPS2817 input circuits include an active pullup circuit to eliminate the need for an external resistor when using open-collector PWM controllers. The TPS2818 and TPS2819 are identical to the TPS2816 and TPS2817, except that the active pullup circuit is omitted. The TPS2828 and TPS2829 are identical to the TPS2818 and TPS2819, except that the internal voltage regulator is omitted, allowing quiescent current to drop to less than 15 µA when the inputs are high or low. The TPS28xx series devices are available in 5-pin SOT-23 (DBV) packages and operate over an ambient temperature range of −40_C to 125_C. 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. Copyright E 2005, Texas Instruments Incorporated !"#$ % &'!!($ #% )'*+&#$ ,#$(!,'&$% &!" $ %)(&&#$% )(! $.( $(!"% (/#% %$!'"($% %$#,#!, 0#!!#$1- !,'&$ )!&(%%2 ,(% $ (&(%%#!+1 &+',( $(%$2 #++ )#!#"($(!%- POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 ORDERING INFORMAITON PACKAGED DEVICES TA FUNCTION −40°C 125°C −40 C to 125 C SOT-23−5 (DBV) CHIP FORM (Y) Inverting driver with active pullup input TPS2816DBV PREVIEW Noninverting driver with active pullup input TPS2817DBV PREVIEW Inverting driver TPS2818DBV PREVIEW Noninverting driver TPS2819DBV PREVIEW Inverting driver, no regulator TPS2828DBV PREVIEW The DBV package is available taped and reeled only. functional block diagram TPS2816, TPS2818 VDD TPS2817, TPS2819 VCC VREG VDD Active Pullup (TPS2816 Only) VREG VCC Active Pullup (TPS2817 Only) OUT IN OUT IN GND GND TPS2829 TPS2828 VCC VCC OUT IN IN GND OUT GND OUTPUT STAGE DIAGRAM INPUT STAGE DIAGRAM VCC VCC Predrive IN To Drive Stage OUT 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 80°C POWER RATING DBV 437 mW 3.5 mW/°C 280 mW 227 mW These dissipation ratings are based upon EIA specification JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages, in tests conducted in a zero-airflow, wind-tunnel environment. absolute maximum ratings over operating temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 15 V Regulator supply voltage range, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC −0.3 V to 42 V Input voltage range, IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VCC +0.5 V Output voltage range (pin 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC +0.5 V Continuous regulator output current, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA Continuous output current, OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 150°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C Lead temperature 1,6 mm (1/16 in) from case for 10 s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: All voltages are with respect to device GND terminal. recommended operating conditions MIN MAX Regulator input voltage range, VDD, TPS2816 through TPS2819 8 40 V Supply voltage, VCC 4 14 V −0.3 0 VCC 20 mA −40 125 _C Input voltage, IN Continuous regulator output current, ICC Operating junction temperature, TJ POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT V 3 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 TPS28xx electrical characteristics over recommended operating ambient temperature range, VCC = 10 V, VDD tied to VCC, CL = 1 nF (unless otherwise specified) inputs PARAMETER TEST CONDITIONS MIN VCC = 5 V VCC = 10 V Positive-going input threshold voltage VCC = 14 V VCC = 5 V VCC = 10 V VCC = 14 V Negative-going input threshold voltage Input current, TPS2816/17 MAX 3.3 4 6.6 7 9.3 10 1 1.7 2 3.3 2.5 4.6 Input voltage hysteresis Input current, TPS2818/19/28/29 TYP† UNIT V V 1.3 V Input = 0 V or VCC 0.2 µA Input = 0 V 650 Input = VCC µA A 15 Input capacitance † Typical values are for TA = 25°C, unless otherwise noted. 5 10 MIN TYP† MAX 9.75 9.9 8 9.1 pF outputs PARAMETER TEST CONDITIONS IO = −1 mA IO = −100 mA High-level output voltage IO = 1 mA Low-level output voltage UNIT V 0.18 0.25 1 2 MIN TYP† MAX 10 11.5 13 V 10 V IO = 100 mA V † Typical values are for TA = 25°C, unless otherwise noted. regulator, TPS2816 through TPS2819 PARAMETER TEST CONDITIONS Output voltage 14 ≤ VDD ≤ 40 V, 0 ≤ IO ≤ 20 mA Output voltage in dropout IO = 10 mA, VDD = 10 V 8 UNIT † Typical values are for TA = 25°C, unless otherwise noted. supply current PARAMETER TYP† MAX IN = high = 10 V 150 250 IN = low = 0 V 650 1000 25 50 0.1 15 TEST CONDITIONS TPS2816, TPS2817 TPS2818, TPS2819 Supply current into VCC TPS2828, TPS2829 Supply current into VDD IN = high or low, High = 10 V, Low = 0 V TPS2816, TPS2817 VDD = 20 V, IN = high = 10 V or low = 0 V 650 1000 TPS2818, TPS2819 VDD = 20 V, IN = high = 10 V or low = 0 V 50 150 † Typical values are for TA = 25°C, unless otherwise noted. 4 MIN POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT µA µA SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 TPS28xxY electrical characteristics at TA = 25_C, VCC = 10 V, VDD tied to VCC, CL = 1 nF (unless otherwise specified) inputs PARAMETER TEST CONDITIONS Positive-going input threshold voltage Negative-going input threshold voltage MIN VCC = 5 V VCC = 10 V 3.3 VCC = 14 V VCC = 5 V 9.3 VCC = 10 V VCC = 14 V 3.3 Input current, TPS2816/17 MAX 6.6 UNIT V 1.7 V 4.6 Input voltage hysteresis Input current, TPS2818/19/28/29 TYP 1.3 V Input = 0 V or VCC 0.2 µA Input = 0 V 650 Input = VCC µA A 15 Input resistance Input capacitance 1000 MΩ 5 pF outputs PARAMETER TEST CONDITIONS MIN IO = −1 mA IO = −100 mA High-level output voltage MAX UNIT 9.9 V 9.1 IO = 1 mA Low-level output voltage TYP 0.18 IO = 100 mA V 1 regulator, TPS2816 through TPS2819 PARAMETER TEST CONDITIONS Output voltage 14 ≤ VDD ≤ 40 V, 0 ≤ IO ≤ 20 mA Output voltage in dropout IO = 10 mA, VDD = 10 V MIN TYP MAX UNIT 11.5 V 9 V supply current PARAMETER TEST CONDITIONS TPS2816, TPS2817 Supply current into VCC TPS2818, TPS2819 TPS2828, TPS2829 Supply current into VDD MIN TYP IN = high = 10 V 150 IN = low = 0 V 650 IN = high or low, High = 10 V, Low = 0 V 25 VDD = 20 V, IN = high = 10 V or low = 0 V 650 TPS2818, TPS2819 VDD = 20 V, IN = high = 10 V or low = 0 V 50 • DALLAS, TEXAS 75265 UNIT µA 0.1 TPS2816, TPS2817 POST OFFICE BOX 655303 MAX µA 5 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 switching characteristics for all devices over recommended operating ambient temperature range, VCC = 10 V, VDD tied to VCC, CL = 1 nF (unless otherwise specified) PARAMETER TEST CONDITIONS MIN TYP VCC = 14 V tr tf tPHL tPLH 14 Propagation delay time, high-to-low-level output 35 VCC = 14 V 25 14 35 VCC = 14 V 40 24 50 VCC = 14 V 40 24 VCC = 10 V 50% 0V tf 90% OUT 50% 10% tr 90% 50% 10% tPHL tPLH Figure 1. Typical Timing Diagram (TPS2816) 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 45 50 PARAMETER MEASUREMENT INFORMATION 50% 45 VCC = 5 V VCC = 5 V IN 30 VCC = 5 V VCC = 10 V Propagation delay time, low-to-high-level output 30 VCC = 5 V VCC = 10 V Fall time UNIT 25 VCC = 10 V Rise time MAX 0V ns ns ns ns SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 PARAMETER MEASUREMENT INFORMATION TPS2816 1 5 Regulator 0.1 µF 10 V + 4.7 µF 2 3 4 Output Input 50 Ω 1 nF Figure 2. Switching-Time Test Setup TPS2816 VCC 0−10 Vdc Current Loop OUT 10 V 0.1 µF + 4.7 µF Figure 3. Shoot-Through Current Test Setup POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 TYPICAL CHARACTERISTICS Table of Graphs FIGURE 8 Rise time vs Supply voltage 4 Fall time vs Supply voltage 5 Propagation time (L → H) vs Supply voltage 6 Propagation time (H → L) vs Supply voltage 7 Rise time vs Ambient temperature 8 Fall time vs Ambient temperature 9 Propagation time (L → H) vs Supply voltage 10 Propagation time (H → L) vs Ambient temperature 11 Supply current (VCC) vs Supply voltage 12 Supply current (VCC) vs Load capacitance 13 Supply current (VCC) vs Ambient temperature 14 Input threshold voltage vs Supply voltage 15 Regulator output voltage vs Regulator supply voltage 16 Regulator quiescent current vs Regulator supply voltage 17 Shoot-through current vs Input voltage (L → H) 18 Shoot-through current vs Input voltage (H → L) 19 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 TYPICAL CHARACTERISTICS FALL TIME vs SUPPLY VOLTAGE RISE TIME vs SUPPLY VOLTAGE 30 35 TA = 25°C TA = 25°C 30 25 CL = 2200 pF CL = 2200 pF t f − Fall Time − ns t r − Rise Time − ns 25 20 15 CL = 1000 pF 20 15 10 CL = 1000 pF 10 5 5 CL = 0 CL = 0 0 0 4 6 12 8 10 VCC − Supply Voltage − V 4 14 6 12 8 10 VCC − Supply Voltage − V Figure 5 Figure 4 PROPAGATION DELAY TIME, LOW-TO-HIGH-LEVEL OUTPUT vs SUPPLY VOLTAGE PROPAGATION DELAY TIME, HIGH-TO-LOW-LEVEL OUTPUT vs SUPPLY VOLTAGE 40 40 TA = 25°C TA = 25°C 35 35 t PHL− Propagation Delay Time, High-to-Low-Level Output − ns t PLH − Propagation Delay Time, Low-to-High-Level Output − ns 14 30 25 CL = 2200 pF 20 15 CL = 1000 pF 10 CL = 0 5 CL = 2200 pF 30 25 20 CL = 1000 pF 15 10 CL = 0 5 0 0 4 6 12 8 10 VCC − Supply Voltage − V 14 4 Figure 6 6 12 8 10 VCC − Supply Voltage − V 14 Figure 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 TYPICAL CHARACTERISTICS RISE TIME vs AMBIENT TEMPERATURE FALL TIME vs AMBIENT TEMPERATURE 19 VCC = 10 V Load = 1000 pF f = 100 kHz 19 18 17 17 t f − Fall Time − ns t r − Rise Time − ns 18 20 VCC = 10 V Load = 1000 pF f = 100 kHz 16 15 16 15 14 13 12 14 11 13 −50 −25 0 25 50 75 Ambient Temperature − °C 100 10 −50 125 −25 Figure 8 125 PROPAGATION DELAY TIME, HIGH-TO-LOW-LEVEL OUTPUT vs AMBIENT TEMPERATURE 19 20 VCC = 10 V Load = 1000 pF f = 100 kHz 19 t PHL− Propagation Delay Time, High-to-Low-Level Output − ns t PLH − Propagation Delay Time, Low-to-High-Level Output − ns 100 Figure 9 PROPAGATION DELAY TIME, LOW-TO-HIGH-LEVEL OUTPUT vs SUPPLY VOLTAGE 18 75 0 25 50 Ambient Temperature − °C 17 16 15 18 VCC = 10 V Load = 1000 pF f = 100 kHz 17 16 15 14 13 12 14 11 13 −50 −25 0 25 50 75 100 TA − Ambient Temperature − °C 125 10 −50 Figure 10 10 −25 0 25 50 75 100 TA − Ambient Temperature − °C Figure 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 125 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs SUPPLY VOLTAGE SUPPLY CURRENT vs LOAD CAPACITANCE 16 4 Load = 1000 pF Duty Cycle = 50% VCC = 10 V f = 100 kHz Duty Cycle = 50% 3.5 f = 1 MHz 12 I CC − Supply Current − mA I CC − Supply Current − mA 14 10 8 f = 500 kHz 6 4 f = 40 kHz 2 f = 100 kHz 3 2.5 2 1.5 1 0.5 0 0 4 6 12 8 10 VCC − Supply Voltage − V 0 14 1000 Figure 12 Figure 13 SUPPLY CURRENT vs AMBIENT TEMPERATURE INPUT THRESHOLD VOLTAGE vs SUPPLY VOLTAGE 3 9 VCC = 10 V Load = 1000 pF f = 100 kHz Duty Cycle = 50% 8 VIT − Input Threshold Voltage − V I CC − Supply Current − mA 2000 CL − Load Capacitance − pF 2.5 2 1.5 7 Positive Going 6 5 4 Negative Going 3 2 1 1 −50 0 −25 0 25 50 75 100 125 4 TA − Ambient Temperature − °C Figure 14 6 12 8 10 VCC − Supply Voltage − V 14 Figure 15 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 11 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 TYPICAL CHARACTERISTICS REGULATOR QUIESCENT CURRENT vs REGULATOR SUPPLY VOLTAGE 12 670 11 665 Regulator Quiescent Current − µ A Regulator Output Voltage − V REGULATOR OUTPUT VOLTAGE vs REGULATOR SUPPLY VOLTAGE 10 9 8 7 6 Load = 10 kΩ 5 4 TPS2816,17 only No Load 660 655 650 645 640 635 630 625 4 8 12 16 20 24 28 32 36 620 40 4 8 VDD − Regulator Supply Voltage − V 12 28 24 32 36 40 Figure 17 SHOOT-THROUGH CURRENT vs INPUT VOLTAGE LOW-TO-HIGH SHOOT-THROUGH CURRENT vs INPUT VOLTAGE HIGH-TO-LOW 7 7 VCC = 10 V No Load TA = 25°C VCC = 10 V No Load TA = 25°C 6 Shoot-Through Current − mA 6 Shoot-Through Current − mA 20 VDD − Regulator Supply Voltage − V Figure 16 5 4 3 2 1 5 4 3 2 1 0 0 0 2 4 6 VI − Input Voltage − V 8 10 0 2 4 Figure 19 POST OFFICE BOX 655303 6 VI − Input Voltage − V Figure 18 12 16 • DALLAS, TEXAS 75265 8 10 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 APPLICATION INFORMATION MOSFETs are voltage-driven devices that require very little steady-state drive current. However, the large input capacitance (200 pF to 3000 pF or greater) of these devices requires large current surges to reduce the turn-on and turn-off times. The TPS2816 series of high-speed drivers can supply up to 2 A to a MOSFET, greatly reducing the switching times. The fast rise times and fall times and short propagation delays allow for operation in today’s high-frequency switching converters. In addition, MOSFETs have a limited gate-bias voltage range, usually less than 20 V. The TPS2816 series of drivers extends this operating range by incorporating an on-board series regulator with an input range up to 40 V. This regulator can be used to power the drivers, the PWM chip, and other circuitry, providing the power dissipation rating is not exceeded. When using these devices, care should be exercised in the proper placement of the driver, the switching MOSFET, and the bypass capacitor. Because of the large input capacitance of the MOSFET, the driver should be placed close to the gate to eliminate the possibility of oscillations caused by trace inductance ringing with the gate capacitance of the MOSFET. When the driver output path is longer than approximately 2 in, a resistor in the range of 10 Ω should be placed in series with the gate drive as close as possible to the MOSFET. A ceramic bypass capacitor also is recommended to provide a source for the high-speed current transients that the MOSFET requires. This capacitor should be placed between VCC and GND of the driver (see Figures 20 and 21). TPS2816 VCC 1 Regulator 5 Load 2 0.1 µF 3 Input 4 Figure 20. VCC < 14 V TPS2816 VDD 1 Regulator 5 + 0.1 µF Input 2 Load 4.7 µF 3 4 Figure 21. VCC > 14 V POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 13 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 APPLICATION INFORMATION The on-board series regulator supplies approximately 20 mA of current at 11.5 V, some of which can be used for external circuitry, if the power dissipation rating for the driver is not exceeded. When using the onboard series regulator, an electrolytic output capacitor of 4.7 µF or larger is recommended. Although not required, a 0.1-µF ceramic capacitor on the input of the regulator can help suppress transient currents (see Figure 22). When not used, the regulator should be connected to VCC. Grounding VDD results in destruction of the regulator. 34 VDC 0.1 µF + 0.1 µF VCC 4.7 µF TPS2816 PWM Controller 1 Regulator 5 0.1 µF 2 VO Out 3 4 10 µF GND Figure 22. Boost Application The TPS2816 and TPS2818 drivers include active pullup circuits on the inputs to eliminate the need for external pullup resistors when using controllers with open-collector outputs (such as the TL5001). The TPS2817 and TPS2819 drivers have standard CMOS inputs, providing a total device operating current of less than 50 µA. All devices switch at standard CMOS logic levels of approximately two-thirds VCC with positive-going input levels, and approximately one-third VCC with negative-going input levels. Being CMOS drivers, these devices draw relatively large amounts of current (approximately 5 mA) when the inputs are in the range of one-half of the supply voltage. In normal operation, the driver input is in this range for a very short time. Care should be taken to avoid use of very low slew-rate inputs, used under normal operating conditions. Although not destructive to the device, slew rates slower than 0.1 V/µs are not recommended. The BiCMOS output stage provides high instantaneous drive current to rapidly toggle the power switch and very low drop to each rail to ensure proper operation at voltage extremes. Low-voltage circuits (less than 14 V) that require very low quiescent currents can use the TPS2828 and TPS2829 drivers. These drivers use typically 0.2 µA of quiescent current (with inputs high or low). They do not have the internal regulator or the active pullup circuit, but all other specifications are the same as for the rest of the family. 2.5-V/3.3-V, 3-A application Figure 23 illustrates the use of the TPS2817 with a TL5001 PWM controller and a TPS1110 in a simple step-down converter application. The converter operates at 275 kHz and delivers either 2.5 V or 3.3 V (determined by the value of R6) at 3 A (5 A peak) from a 5-V supply. The bill of materials is provided in Table 1. 14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 APPLICATION INFORMATION Q1 TPS1110D 4.5 V to 7 V L1 VO 3 A Continuous 5 A Peak + C7 C8 R5 U1 TPS2817DBV 1 C5 Regulator + + CR1 5 C9 C10 C12 C13 2 GND 3 4 R4 GND U2 TL5001CD 2 R1 + 5 SCP VCC R6 GND DTC 6 C9 1 OUT C2 COMP 3 FB 4 C3 R7 C11 C6 8 RT 7 R3 R2 C4 Figure 23. Step-Down Application NOTE: If the parasitics of the external circuit cause the voltage to violate the Absolute Maximum Rating for the output pins, Schottky diodes should be added from ground to output and from output to VCC. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 15 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 APPLICATION INFORMATION Table 1. Bill of Materials REF DES PART NO. DESCRIPTION MFR U1 TPS2817DBV IC, MOSFET driver, single noninverting TI U2 TL5001CD IC, PWM controller TI Q1 TPS1110D MOSFET, p-channel, 6 A, 7 V, 75 mΩ TI C1, C2, C5, C8 Capacitor, ceramic, 0.1 µF, 50 V, X7R, 1206 C3 Capacitor, ceramic, 0.033 µF, 50 V, X7R, 1206 C4 Capacitor, ceramic, 2200 pF, 50 V, X7R, 0805 C6 ECS-T1CY105R Capacitor, tantalum, 1.0 µF, 16 V, A case Panasonic C7 10SC47M Capacitor, OS-Con, 47 µF, 10 V Sanyo C9 C10, C12 Capacitor, ceramic, 1000 pF, 50 V, X7R, 0805 Capacitor, OS-Con, 220 µF, 10 V 10SA220M C11 Capacitor, ceramic, 0.022 µF, 50 V, X7R, 0805 C13 Capacitor, ceramic, 47 µF, 50 V, X7R Sanyo CR1 50WQ03F Diode, Schottky, D-pak, 5 A, 30 V IR L1 SML3723 Inductor, 27 µH, ±20%, 3 A Nova Magnetics R1 Resistor, CF, 47 kΩ, 1/10 W, 5%, 0805 R2 Resistor, CF, 1.5 kΩ, 1/10 W, 5%, 0805 R3 Resistor, MF, 30.1 kΩ, 1/10 W, 1%, 0805 R4 Resistor, MF, 1.00 kΩ, 1/10 W, 1%, 0805 R5 Resistor, CF, 47 Ω, 1/10 W, 5%, 0805 R6 (3.3-V) Resistor, MF, 2.32 kΩ, 1/10 W, 1%, 0805 R6 (2.5-V) Resistor, MF, 1.50 kΩ, 1/10 W, 1%, 0805 R7 Resistor, CF, 100 Ω, 1/10 W, 5%, 0805 As shown in Figures 24 and 25, the TPS2817 turns on the TPS1110 power switch in less than 20 ns and off in 25 ns. Q1 Gate Q1 Drain 2 V/div Q1 Drain 2 V/div Q1 Gate 12.5 ns/div Figure 24. Q1 Turn-On Waveform 16 POST OFFICE BOX 655303 2 V/div 2 V/div 12.5 ns/div Figure 25. Q1 Turn-Off Waveform • DALLAS, TEXAS 75265 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 APPLICATION INFORMATION The efficiency for various output currents, with a 5.25-V input, is shown in Figure 26. For a 3.3-V output, the efficiency is greater than 90% for loads up to 2 A − exceptional for a simple, inexpensive design. 95 VO = 3.3 V 90 Efficiency − % VI = 5.25 V TA = 25°C 85 VO = 2.5 V 80 75 70 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Load Current − A Figure 26. Converter Efficiency POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 17 SPRS289A − AUGUST 2005 − REVISED OCTOBER 2005 MECHANICAL DATA DBV (R-PDSO-G5) PLASTIC SMALL-OUTLINE PACKAGE 0,40 0,20 0,95 5 0,25 M 4 1,80 1,50 1 0,15 NOM 3,00 2,50 3 Gage Plane 3,10 2,70 0,25 0°−ā 8° Seating Plane 1,30 1,00 0,10 0,05 MIN 4073253-4/B 11/96 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions include mold flash or protrusion. 18 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 27-Feb-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing TPS2829QDBVRQ1 ACTIVE SOT-23 DBV Pins Package Eco Plan (2) Qty 5 3000 Green (RoHS & no Sb/Br) Lead/Ball Finish CU NIPDAU MSL Peak Temp (3) Level-1-260C-UNLIM (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. 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