高輝度白色 LED ドライバ　2ｍｍ x 2mm QFN と SOT-23 パッケージ

Transcription

1 TPS VIN 5V L1 10 µ H D1 C1 4.7 µ F TPS61165 C2 1 µ F VIN SW ON/OFF DIMMING CONTROL FB 350 ma 220 nf COMP GND Rset 0.57 Ω L1: TOKO #A 915 _Y-100M C1: Murata GRM 188R61A475 K C2: Murata GRM 188R61E105K D1: ONsemi MBR0540T1 LED : OSRAM LW-W 5SM 1.

2 (1) T A OPEN LED PROTECTION PACKAGE (2) PACKAGE MARKING TPS61165DRV CCQ 40 C 85 C 38 V (typical) TPS61165DBV DAK (1) VALUE Supply Voltages on VIN (2) V V I Voltages on (2) V Voltage on FB and COMP (2) V Voltage on SW (2) V P D Continuous Power Dissipation T J Operating Junction Temperature Range C T STG Storage Temperature Range C DERATING BOARD PACKAGE R θjc R θja FACTOR ABOVE T A <25 C T A =70 C T A =85 C TA = 25C Low-K DRV (1) 20 C/W 140 C/W 7.1mW/ C 715mW 395mW 285mW High-K DRV (2) 20 C/W 65 C/W 15.4mW/ C 1540mW 845mW 615mW High-K DBV (2) n/a 210 C/W 4.7mW/ C 470mW 258mW 188mW MIN TYP MAX V I Input voltage range, VIN V O Output voltage range VIN 38 V L Inductor (1) µh f dim PWM dimming frequency khz C IN Input capacitor 1 µf C O Output capacitor 1 10 µf T A Operating ambient temperature C T J Operating junction temperature C 2

3 MIN TYP MAX SUPPLY CURRENT V I Input voltage range, VIN 3 18 V I Q Operating quiescent current into VIN Device PWM switching no load 2.3 ma I SD Shutdown current CRTL=GND, VIN = 4.2 V 1 µa UVLO Under-voltage lockout threshold VIN falling V V hys Under-voltage lockout hysterisis 70 mv ENABLE AND REFERENCE CONTROL V (h) logic high voltage VIN =3Vto18V 1.2 V V (l) logic low voltage VIN =3Vto18V 0.4 V R () pull down resistor kω t off pulse width to shutdown high to low 2.5 ms t es_det Easy Scale detection time (1) pin low 260 µs t es_delay Easy Scale detection delay 100 µs t es_win Easy Scale detection window time Measured from high 1 ms VOLTAGE AND CURRENT CONTROL V REF Voltage feedback regulation voltage mv V (REF_PWM) Voltage feedback regulation voltage under V FB =50mV brightness control V FB =20mV mv I FB Voltage feedback input bias current V FB = 200 mv 2 µa f S Oscillator frequency MHz D max Maximum duty cycle V FB = 100 mv 90% 93% t min_on Minimum on pulse width 40 ns I sink Comp pin sink current 100 µa I source Comp pin source current 100 µa G ea Error amplifier transconductance umho R ea Error amplifier output resistance 6 MΩ f ea Error amplifier crossover frequency 5 pf connected to COMP 500 khz POWER SWITCH R DS(ON) N-channel MOSFET on-resistance VIN = 3.6 V VIN = 3.0 V 0.7 Ω I LN_NFET N-channel leakage current V SW =35V,T A =25 C 1 µa OC and OLP I LIM N-Channel MOSFET current limit D = D max A I LIM_Start Start up current limit D = D max 0.7 A t Half_LIM Time step for half current limit 5 ms V ovp Open LED protection threshold Measured on the SW pin V V (FB_OVP) Open LED protection threshold on FB Measured on the FB pin, percentage of Vref, Vref = 200 mv and 20 mv 50% t REF V REF filter time constant 180 µs t step V REF ramp up time Each step, Measured as number of cycles of the 1.2 MHz clock 213 µs EasyScale TIMING t start Start time of program stream 2 µs t EOS End time of program stream µs t H_LB High time low bit Logic µs t L_LB Low time low bit Logic 0 2 t H_LB 360 µs 3

4 MIN TYP MAX t H_HB High time high bit Logic 1 2 t L_HB 360 µs t L_HB Low time high bit Logic µs V ACKNL Acknowledge output voltage low Open drain, Rpullup =15 kω to VIN 0.4 V t valackn Acknowledge valid time See (2) 2 µs t ACKN Duration of acknowledge condition See (2) 512 µs THERMAL SHUTDOWN T shutdown Thermal shutdown threshold 160 C T hysteresis Thermal shutdown threshold hysteresis 15 C TOP VIEW TOP VIEW FB VIN VIN 1 6 FB COMP Thermal Pad SW COMP GND GND SW 6-PIN SOT-23 6-PIN 2mm x 2mm x 0.8mm QFN NAME DRV DBV I/O NO. NO. VIN 6 1 I SW 4 3 I GND 3 4 O FB 1 6 I COMP 2 5 O 5 2 I Thermal Pad 4

5 D1 C2 Rset 1 FB SW 4 L1 Reference Control Error Amplifer OLP Vin 6 COMP C3 2 PWM Control C1 5 Soft Start-up Ramp Generator + Current Sensor Oscillator GND 3 Efficiency 3 LEDs (VOUT = 12V); VIN = 3, 5, 8.5V; L = 10 µh Efficiency 6 LEDs (VOUT = 24V); VIN = 5, 8.5, 12V; L = 10 µh Current limit T A =25 C Current limit Easyscale step PWM dimming linearity VIN = 3.6 V; PWM Freq = 10 khz and 32 khz Output ripple at PWM dimming 3 LEDs; VIN = 5 V; I LOAD = 350 ma; PWM 32 khz Switching waveform 3 LEDs; VIN = 5 V; I LOAD = 3500 ma; L = 10 µh Start-up 3 LEDs; VIN = 5 V; I LOAD = 350 ma; L = 10 µh Open LED protection 8 LEDs; VIN = 3.6 V; I LOAD =20mA 5

6 100 3LEDs(VOUT=12V) EFFICIENCY vs OUTPUT CURRENT VIN = 8.5 V LEDs ( VOUT = 24 V ) EFFICIENCY vs OUTPUT CURRENT VIN =12V Efficiency - % VIN =3V VIN =5V Efficiency - % VIN =5V VIN = 8.5 V Output Current - ma Output Current - ma 2 SWITCH CURRENT LIMIT vs DUTY CYCLE SWITCH CURRENT LIMIT vs TEMPERATURE Switch Current Limit - A Switch Current Limit - ma Duty Cycle - % Temperature - C 4 6

7 200 FB VOLTAGE vs EASYSCALE STEP 200 FB VOLTAGE vs PWM DUTY CYCLE 180 PWM 10 khz,32khz FB Voltage - mv Easy Scale Step 6 FB Voltage - mv PWM Duty Cycle - % 7 OUTPUT RIPPLE at PWM DIMMING SWITCHING WAVEFORM PWM 5 V/div SW 5 V/div VOUT 50 mv/div AC VOUT 200 mv/div AC ILED 200 ma/div I 500 ma/div L t-20µ s/div t-400 ns/div V/div START-UP OPEN LED 5 V/div OPEN LED PROTECTION VOUT 5 V/div FB 200 mv/div VOUT 10 V/div COMP 500 mv/div I 200 ma/div L I 500 ma/div L t-2ms/div t-100 µ s/div

8 µ µ I LED = V FB R SET (1) 8

9 µ µ V FB = Duty 200 mv (2) VBG 200 mv Error Amplifer 13. FB Insert battery PWM signal high low PWM mode Startup delay FB ramp 200mV x duty cycle Shutdown delay FB t Insert battery Enter ES mode Enter ES mode Timing window Programming code Programming code high low ES mode FB ES detect time ES detect delay Startup delay FB ramp Programmed value (if not programmed, 200mV default ) Shutdown delay 50mV IC Shutdown Startup delay FB ramp 50mV 12. 9

10 FB voltage D4 D3 D2 D1 D0 (mv)

11 DATA IN Device Address DATABYTE Start DA7 0 DA6 1 DA5 1 DA4 1 DA3 0 DA2 0 DA1 1 DA0 0 EOS Start RFA A1 A0 D4 D3 D2 D1 D0 EOS DATA OUT ACK 14. BYTE BIT TRANSMISSION NAME NUMBER DIRECTION 7 DA7 0 MSB device address 6 DA6 1 5 DA5 1 Device Address 4 DA4 1 Byte IN 3 DA hex 2 DA2 0 1 DA1 1 0 DA0 0 LSB device address Data byte 7 (MSB) RFA Request for acknowledge. If high, acknowledge is applied by device 6 A1 0 Address bit 1 5 A0 0 Address bit 0 4 D4 Data bit 4 IN 3 D3 Data bit 3 2 D2 Data bit 2 1 D1 Data bit 1 0 (LSB) D0 Data bit 0 Acknowledge condition active 0, this condition will only be applied in case RFA bit is ACK OUT set. Open drain output, Line needs to be pulled high by the host with a pullup resistor. This feature can only be used if the master has an open drain output stage. In case of a push pull output stage Acknowledge condition may not be requested! 2. 11

12 Easy Scale Timing, without acknowledge RFA = 0 t Start Address Byte t Start DATA Byte DATA IN Static High Static High DA7 0 DA0 0 T EOS RFA 0 D0 1 T EOS Easy Scale Timing, with acknowledge RFA = 1 t Start Address Byte t Start DATA Byte DATA IN Static High Static High DA7 0 DA0 0 T EOS RFA 1 D0 1 t valack DATA OUT Controller needs to Pullup Data Line via a resistor to detect ACKN ACKN t ACKN Acknowledge true, Data Line pulled down by device Acknowledge false, nopull down t Low t High t LOW t High Low Bit (Logic 0) High Bit (Logic 1) 15. µ µ µ µ 12

13 I P 1 = 1 L F + ) [ 1 s ( V + V V V ] out f in in I out_max = Vin ( I lim I /2) P η Vout η µ µ (3) (4) I in_dc = Vout Iout Vin η (5) ± µ µ µ µ PART NUMBER L DCR MAX SATURATION CURRENT SIZE (µh) (mω) (A) (L W H mm) VENDOR A915_Y-100M TOKO VLCF5020T-100M1R TDK CDRH4D22/HP Sumida LQH43PN100MR Murata 3. 13

14 ( V out V in ) I out C out = (6) V out Fs V ripple µ µ µ µ V ripple_esr =I out R ESR (7) Rset C1 Vin LEDs Out FB COMP Vin L1 C3 GND SW GND Place enough VIAs around thermal pad to enhance thermal performance LEDs IN C2 Minimize the area of this trace

15 P D(max) = 125 C T A RθJA (8) θ θ ADDITIONAL TYPICAL APPLICATIONS VIN 5V L1 10 µ H D1 C1 4.7 µ F TPS C2 1 µ F VIN SW ON/OFF FB 10 kω C3 220 nf COMP GND 100 kω 80 kω Rset 0.64 Ω L1: TOKO #A915 _Y-100M C1:Murata GRM188R61A475K C2:Murata GRM188R61E105K D1: ONsemi MBR0540 T1 LED : OSRAM LW -W 5SM 0.1 µ F PWM Signal:1.8V;200 Hz LED current =1.8V x(1-d) / (8x Rset) 17. VIN 3 Vto6V L1 10 µ H D1 C1 4.7 µ F TPS61165 C2 1 µ F 3s9p 27LEDs VIN SW ON /OFF DIMMING CONTROL FB C3 220 nf COMP GND Rset 1.1 Ω L1: TOKO # A915_ Y-100 M C 1: Murata GRM188 R61A475 K C 2: Murata GRM188 R61E105 K D1: ONsemi MBR0540T

16 VIN 12 V L1 10 µ H D1 C1 4.7 µ F TPS C2 1 µ F VIN SW ON/OFF DIMMING CONTROL FB 350 ma C3 220 nf COMP GND Rset 0.57 Ω L1: TOKO #A915_Y-100M C1:Murata GRM188R61A475K C2:Murata GRM188R61E105K D1: ONsemi MBR0540T1 LED: OSRAM LW-W5SM 19. VIN 9V to 15V L1 10 µ H C4 1 µ F D1 VOUT=12 V C1 4.7 µ F TPS L2 10 µ H C2 1 µ F VIN SW ON/OFF DIMMING CONTROL FB 180 ma C3 220 nf COMP GND Rset 1.1 Ω L1, L2:TOKO #A915_Y-100M C1: Murata GRM188 R61A475K C2: Murata GRM188 R61E105K C4: Murata GRM188 R61H105K D1: ONsemi MBR0540T1 *L1,L2 can be replaced by 1:1 transformer

17 Orderable Device (1) Status Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish TPS61165DBVR ACTIVE SOT-23 DBV Green (RoHS & no Sb/Br) TPS61165DBVT ACTIVE SOT-23 DBV Green (RoHS & no Sb/Br) TPS61165DRVR ACTIVE SON DRV Green (RoHS & no Sb/Br) TPS61165DRVRG4 ACTIVE SON DRV Green (RoHS & no Sb/Br) TPS61165DRVT ACTIVE SON DRV Green (RoHS & no Sb/Br) TPS61165DRVTG4 ACTIVE SON DRV Green (RoHS & no Sb/Br) MSL Peak Temp (3) Samples (Requires Login) CU NIPDAU Level-1-260C-UNLIM Request Free Samples CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office CU NIPDAU CU NIPDAU Level-2-260C-1 YEAR Request Free Samples Level-2-260C-1 YEAR Request Free Samples CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office 17

18 REEL DIMENSIONS TAPE DIMENSIONS K0 P1 Reel Diameter Cavity A0 B0 W A0 B0 K0 W P1 Dimension designed to accommodate the component width Dimension designed to accommodate the component length Dimension designed to accommodate the component thickness Overall width of the carrier tape Pitch between successive cavity centers Reel Width (W1) QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE Sprocket Holes Q1 Q2 Q1 Q2 Q3 Q4 Q3 Q4 User Direction of Feed Pocket Quadrants *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W (mm) Pin1 Quadrant TPS61165DBVR SOT-23 DBV Q3 TPS61165DBVT SOT-23 DBV Q3 TPS61165DRVR SON DRV Q2 TPS61165DRVR SON DRV Q2 TPS61165DRVT SON DRV Q2 TPS61165DRVT SON DRV Q2 18

19 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS61165DBVR SOT-23 DBV TPS61165DBVT SOT-23 DBV TPS61165DRVR SON DRV TPS61165DRVR SON DRV TPS61165DRVT SON DRV TPS61165DRVT SON DRV

20 A. B. C. D. E. 20

21 A. B. C. D. 21

22 22

23 A. B. C. D. E. F. (SLVS790A) 23

24 IMPORTANT NOTICE