TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 D D D D D D D D D D PW PACKAGE (TOP VIEW) Low Voltage Operation . . . 2.5 V to 7 V Low Power . . . 3. 5 mA (f = 500 kHz, Duty = 50%) Internal Undervoltage Lockout Protection Internal Short Circuit Protection Wide Operating Frequency . . . 50 kHz to 1 MHz Internal Precision Reference . . . 1.25 V ±1% (25°C) On/Off Switch for CH1/3 Pair and Ch2 (see Function Table) 0 to 100% Dead Time Control Totem Pole Output Stage Smal l Package . . . 16 Pin TSSOP IN-2 E/O2 VCC OUT2 OUT3 OUT1 GND SCP 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 E/O3 IN-3 IN-1 E/O1 CT/RT DTC2 DTC1/3 VREF description The TPS5100 is a triple PWM control circuit, primarily designed to compose the power supply for LCD display. Each PWM channel has own error amplifier, PWM comparator, dead-time control and output driver. The trimmed voltage reference, oscillator, undervoltage lockout and short circuit protection are common for all channels. This device includes two boost exclusive circuits (ch1,3) and a buck-boost exclusive circuit (ch2). The operating frequency is set with external resister and capacitor, and dead time is continuously adjustable form 0% to 100% duty cycle with resistive divider network. Soft start function can be implemented by adding a capacitor to dead time divider network. Two dead time control inputs are assigned for ch1,3 pair and ch2 individually and each dead time control input can be used to control on/off operation. TPS5100 can operate from 2.5 V supply voltage and ch1,3 pair and ch2 operate with reverse phase switching each other to achieve efficient operation in low power and battery powered system. The TPS5100 is characterized for operation from –20°C to 85°C. FUNCTION TABLE CONDITION OUTPUT CH-1 CH-2 CH-3 ON H DTC1/3 >. 0.3 V, DTC2 > 0.3 V ON H ON L DTC1/3 > 0.3 V, DTC2 <. 0.2 V ON H OFF H ON H DTC1/3 < 0.2 V, DTC2 > 0.3 V OFF L ON L OFF L DTC1/3 < 0.2 V, DTC2 < 0.2 V OFF L OFF H OFF L AVAILABLE OPTIONS PACKAGE TA TSSOP (PW) – 20°C to 85°C TPS5100PW 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 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 functional block diagram Boost VCC 1V 0.4 V VCC Vref CT/RT GND OSC UVLO Vref V01 To Internal Circuitry VCC PWM/C E/01 V01 Vref IN–1 + _ + – + E/C1 OUT1 VT2 1.15 V V03 Vref IN–3 Vref E/A1 + _ EN1 E/03 – + + _ E/A3 VT5 1.25 V E/C3 DIS LATCH – + VCC 2 µA SPC/C SCP EN1 DTC1/3 + _ DIS VT1, 0.25 V VCC EN2 EN1 – + DTC2 + _ DIS PWM/C + – + R OUT3 R IN–2 + _ E/02 E/A2 VCC VT4, 0.7 V + _ VT3, 0.25 V –VO2 Buck-Boost – + Vref PWM/C – + – E/C2 NOTE A: All voltages and currents listed are nominal. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 VCC EN2 OUT2 –VO2 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 electrical characteristics over recommended operating free-air temperature range, VCC = 3.3 V (unless otherwise noted) (see Note 1) PARAMETER VREF VREF(dev) Reference voltage REGIN Input regulation REGL Output regulation Reference voltage change with TA TEST CONDITIONS IREF = –1 mA, IREF = –1 mA, TA = 25°C See Note 2 MIN TYP MAX UNIT 1.237 1.250 1.263 V 15 25 mV 2 5 mV 1 5 mV IREF = –1 mA, VCC = 2.5 V to 7 V IREF = –0.1 mA to –1 mA IOS Short-circuit output current VREF = 0 –2 –10 –30 mA NOTES: 1. Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. 2. The deviation parameter VREF(dev) is defined as the difference between the maximum and minimum values obtained over the recommended free-air temperature range (–20°C to 85°C). undervoltage lockout section PARAMETER VTH VTL TEST CONDITIONS Upper threshold voltage TA = 25°C TA = 25°C Lower threshold voltage Vhys Hysteresis (VTH – VTL) TA = 25°C NOTE 1: Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. MIN TYP MAX UNIT 2.2 2.3 2.4 V 2 2.1 2.2 V 0.1 0.2 0.3 V protection control section PARAMETER ISCP VT2 VT3 VR TEST CONDITIONS MIN TYP MAX UNIT –1.4 –2 –2.6 µA CH-1, 3 1.10 1.15 1.20 CH-2 0.20 0.25 0.30 0.8 1.5 1.20 1.25 1.30 V MIN TYP MAX UNIT 400 500 600 kHz 1% 2% Input terminal source current Input threshold voltage Latch reset threshold voltage TA = 25°C VT5 Threshold voltage NOTE 1: Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. V V oscillator section PARAMETER TEST CONDITIONS fOSC Frequency CT = 130 pF, fdV Frequency change with VCC VCC = 2.5 V, CT = 130 pF, RT = 7 kΩ TA = 25°C, RT = 7 kΩ fdT ICT/RT Frequency change with TA CT = 130 pF, RT = 7 kΩ Output source current –180 VOSCH VOSCL H level output voltage L level output voltage 5% 10% –200 –220 µA 0.95 1 1.05 V 0.35 0.40 0.45 V MIN TYP MAX UNIT NOTE 1: Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. dead time control section PARAMETER IBDT1/3 IBDT2 VT1 VT0(DTC1/3) VT100(DTC1/3) VT0(DTC2) TEST CONDITIONS VDTC1/3 = 0.35 V to 1.05 V VDTC2 = 0.35 V to 1.05 V Input bias current Comparator threshold voltage Input threshold voltage (DTC1/3) (see Note 3) Duty = 0% Duty = 100% fOSC = 500 kHz 200 ±2 ±20 0.2 0.25 0.3 0.3 0.4 0.5 0.9 1 1.1 0.4 0.5 1 1.1 Duty = 0% 0.3 Input threshold voltage (DTC2) (see NOte 3) fOSC = 500 kHz VT100(DTC2) Duty = 100% 0.9 NOTES: 1: Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. 3. These specifications are not production tested. They are specified as ensured values on circuit design. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 nA V V V 3 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 electrical characteristics over recommended operating free-air temperature range, VCC = 3.3 V (unless otherwise noted) (see Note 1) (continued) error amplifier section PARAMETER VIO Input offset voltage TEST CONDITIONS CH1, 3, IIB Input bias current VIR Input voltage range AVD B1 Open-loop voltage amplification MAX Av = 1 VI = –.95 V to 1.55 V ±10 ±20 CH2, VI = 0.4 V to 1 V ±10 ±20 CH1, 3, CH2 15 0.95 1.55 0.4 1 RFB = 200 kΩ Unity-gain bandwidth VID = 0.1 01V IO = 60 µA IO = 0.2 mA IOM+ IOM– Output sink current VID = 0.1 V, VID = 0.1 V, VO = 0.2 V VO = 1.2 V VT4 Input bias voltage CH2, AV = 1, AV = 1 Output source current TYP CH1, 3, Output voltage swing VOM+ VOM– MIN CH2, TA = 25°C UNIT mV nA V 60 dB 1 MHz 1.2 0.2 V 0.2 1 mA –60 –100 µA 678 700 722 665 700 735 MIN TYP MAX 2.9 3.05 1.9 2.2 2.6 0.2 0.4 0.3 0.6 mV NOTE 1: Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. output section PARAMETER TEST CONDITIONS VOH High level output voltage High-level IO = 20 mA (CH2) IO = –40 mA (CH1, 3) VOL Low level output voltage Low-level IO = 20 mA (CH1, 3) IO = 40 mA (CH2) tr tf Rise time CL = 1000 pF 0.2 Fall time IO = 1000 pF NOTE 1: Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. UNIT V V 130 ns 50 ns total device PARAMETER ICC ICCA Supply current TEST CONDITIONS Output OFF state Average supply current FOSC = 500 kHz, Duty = 50%, No load NOTE 1: Typical values of all parameters except for VREF(dev) and fdT are specified at TA = 25°C. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MIN TYP MAX 2.5 4 UNIT mA 3.5 5 mA TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 TYPICAL CHARACTERISTICS REFERENCE VOLTAGE vs FREE-AIR TEMPERATURE INPUT THRESHOLD VOLTAGE (UVLO) vs FREE-AIR TEMPERATURE 1.27 2.5 VCC = 3.3 V IO = –1 mA VIT – Input Threshold Voltage (UVLO) – V VCC = 3.3 V Vref – Reference Voltage – V 1.26 1.25 1.24 1.23 1.22 –50 0 50 100 2.4 2.3 2.2 2.1 2 –50 150 0 TA – Free-Air Temperature – °C 50 100 150 TA – Free-Air Temperature – °C Figure 1 Figure 2 SUPPLY CURRENT vs FREE-AIR TEMPERATURE SOURCE CURRENT vs FREE-AIR TEMPERATURE 5 –1.8 VCC = 3.3 V VCC = 3.3 V I S – Source Current – µ A I CC – Supply Current – mA 4 ICC 3 ICCA 2 –2 –2.2 –2.4 1 0 –50 0 50 100 150 –2.6 –50 TA – Free-Air Temperature – °C 0 50 100 150 TA – Free-Air Temperature – °C Figure 3 Figure 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 TYPICAL CHARACTERISTICS OSCILLATOR FREQUENCY vs TIMING CAPACITOR OSCILLATOR FREQUENCY vs FREE-AIR TEMPERATURE 505 VCC = 3.3 V RT = 6.8 kΩ TA = 25°C f OSC – Oscillator Frequency – kHz f OSC – Oscillator Frequency – kHz 10k 1k 100 10 10 100 1000 VCC = 3.3 V RT = 6.8 kΩ CT = 130 pF 500 495 490 485 480 –50 10000 0 Figure 5 Figure 6 SOURCE CURRENT vs FREE-AIR TEMPERATURE –190 I S – Source Current – µ A VCC = 3.3 V –195 ICT/IRT –200 –205 –210 –50 0 50 100 TA – Free-Air Temperature – °C Figure 7 6 50 100 TA – Free-Air Temperature – °C CT – Timing Capacitor – pF POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 150 150 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 TYPICAL CHARACTERISTICS INPUT THRESHOLD VOLTAGE (DTC) vs TIMING CAPACITOR INPUT THRESHOLD VOLTAGE (DTC) vs TIMING CAPACITOR 0.42 VCC = 3.3 V RT = 6.8 kΩ TA = 25°C V IT – Input Threshold Voltage – V V IT – Input Threshold Voltage – V 1.04 1.02 0 0.98 10 100 1000 VCC = 3.3 V RT = 6.8 kΩ TA = 25°C 0.4 0.38 0.36 10 10000 100 fOSC – Oscillator Frequency – kHz Figure 8 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 3.5 0.4 VCC = 3.3 V 3 VO – Output Voltage – V VO – Output Voltage – V VCC = 3.3 V IO = 20 mA 2.5 IO = 40 mA 2 0 10000 Figure 9 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 1.5 –50 1000 fOSC – Oscillator Frequency – kHz 50 100 150 0.3 IO = 40 mA 0.2 IO = 20 mA 0.1 0 –50 TA – Free-Air Temperature – °C 0 50 100 150 TA – Free-Air Temperature – °C Figure 10 Figure 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 TYPICAL CHARACTERISTICS MAXIMUM PEAK OUTPUT VOLTAGE vs OUTPUT SOURCE CURRENT OUTPUT VOLTAGE vs SUPPLY VOLTAGE 8 IO = 60 µA TA = 25°C VCC = 3.3 V TA = 25°C VO – Output Voltage – V VOM – Maximum Peak Output Voltage – V 3 2 1 0 –50 0 50 100 6 4 2 0 150 0 2 IOM – Output Source Current – µA Figure 12 8 REFERENCE VOLTAGE vs SUPPLY VOLTAGE 1.4 200 TA = 25°C VCC = 3.3 V TA = 25°C 1.2 Vref – PWM Reference Voltage – V VO – Output Voltage – mV 6 Figure 13 OUTPUT VOLTAGE vs OUTPUT CURRENT 150 100 50 0 0 0.5 1 1.5 2 1 Fall 0.8 Rise 0.6 0.4 0.2 0 0 IO – Output Current – mA 0.5 1 1.5 Figure 15 POST OFFICE BOX 655303 2 VCC – Supply Voltage – V Figure 14 8 4 VCC – Supply Voltage – V • DALLAS, TEXAS 75265 2.5 3 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 TYPICAL CHARACTERISTICS OPEN-LOOP GAIN vs FREQUENCY PHASE SHIFT vs FREQUENCY 80 0 VCC = 3.3 V TA = 25°C Rf = 390 kΩ 60 VCC = 3.3 V Inv-Amp Rf = 390 kΩ TA = 25°C Phase Shift – degrees Open-Loop Gain – dB –45 40 20 0 –135 –180 –20 –40 0.01 –90 0.1 1 10 100 1000 10k –225 0.01 0.1 1 10 100 f – Frequency – kHz f – Frequency – kHz Figure 16 Figure 17 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1000 10k 9 TPS5100 TRIPLE-CHANNEL PWM CONTROL CIRCUITS SLVS169 – JANUARY 2000 MECHANICAL DATA PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PIN SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° 0,75 0,50 A Seating Plane 0,15 0,05 1,20 MAX 0,10 PINS ** 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064 / E 08/96 NOTES: A. B. C. D. 10 All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. 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