THV3058_Rev.1.00_E THV3058 3CH (Buck/Boost) 2CH CP 1CH HVLDO Controller Description Features THV3058 is a controller IC for multi-channel power supply system with 3 channel PWM DC/DC converters(CH-1 Boost/CH-2, CH-3 Buck) and 2 channel charge pump circuits. THV3058 contains internal soft start, under voltage protection, over voltage protection and over current protection, which helps reducing the number of external component count and increasing reliability. Built-in positive and negative charge pump circuits(VGL/VGH) achieve enhanced performance. Ceramic capacitors are available for output, that provides space-saving and low cost system. THV3058 is ideal for TFT-LCD bias power supply system. • QFN 36 pin package • Input Voltage range : 9 ~ 15V • Push Pull output for direct Power MOS driving • Optimized for ceramic output capacitor • Complete PWM mode controller • Positive/Negative charge pumps (PFM mode controller) • Switching Frequency : 500kHz • Under Voltage Protection (Timer Latch ) • DC/DC Over Voltage Protection (CH-2, CH-3 : Timer Latch ) • DC/DC Over Current Protection • UVLO function • CH-1 Boost Converter • CH-2 Buck Converter (Reference Voltage:0.85V) • CH-3 Buck Converter (Output Voltage : 3.3V) • High Voltage LDO Application Pin Assignment Copyright©2010 THine Electronics, Inc. 1/21 VCC LSW_OUT OUT_HLDO INV_HLDO FB2 INV2 SYSUVLO CS2 OUT_L2 36 35 34 33 32 31 30 29 28 ･ TFT-LCD Bias power supply OUT1 1 27 OUT_H2 CS1 2 26 LL2 VREG5 3 25 BST2 VGH_OK 4 24 OUT_VGH INV1 5 23 V_VGH FB1 6 (TOP VIEW) 22 V_VGL PC3 7 37GNDEXP 21 OUT_VGL SGND 8 20 PGND_CP VO3_IN 9 19 NON_VGL QFN 36PIN 17 18 INV_VGH CS3 16 14 PGND TEST2 13 TEST1 12 BST3 15 11 LL3 VREF 10 OUT3 Exposed Pad THine Electronics, Inc. THV3058_Rev.1.00_E Output Channel Description Output Channel CH-1 CH-2 Description PWM Boost converter PWM Buck converter (NMOS transistor drive for synchronous rectifier / available for diode rectification) CH-3 PWM Buck converter fixed 3.3V VGH Positive charge pump VGL Negative charge pump HVLDO High voltage LDO LSW_OUT Output for the external load switch. VGH_OK Output for VGH Power Good Signal. Copyright©2010 THine Electronics, Inc. 2/21 THine Electronics, Inc. THV3058_Rev.1.00_E Block Diagram THV 3058 TFT Multi Channel controller Vin=12V VCC VREG5 5 V REG UVLO SYSUVLO TSD VO1 VO1 VLS Max Duty INV1 + SS VREG5 SS_OK1 VREF FB1 OUT1 + Comp - op + - STOP OSC CS1 SS_OK2 PGND + TEST1 OVP1 UVP1 + V_ VGL LSW_ OUT SS TEST2 SS_OK_LSW PG_ VGL VO3_IN VO3 VREG5 VO3 =3.3V - BST3 + Comp - gm + VREF STOP OSC OUT3 Max Duty PC3 + + VO2 LL3 OVP3 CS3 + - UVP3 VREG5 VO2 INV2 + SS FB2 BST2 + Comp - op SS_OK2 0.85V STOP OSC UVLO OUT_H2 Max Duty + + LL2 OVP2 OUT_L2 UVP2 CS2 + - VGH V_ VGH VLS INV_ VGH + OUT_VGH VREF VGL + VGH STOP 5 msec Delay OSC PG_ VGH SS_OK_LSW V_ VGL NON_ VGL VO1 VGL OUT_VGL + STOP SS_OK1 VREF OSC + PG_ VGL V_ VGH PGND_CP VREF STOP + UVLO OUT_HLDO VCC VREF - Timer Latch Vref cur_ limit INV_HLDO UVP1, 2, 3 OVP2, 3 SGND Error Detection PG_VGL, VGH OSC Copyright©2010 THine Electronics, Inc. PG_VGH 3/21 P_GOOD VGH_OK THine Electronics, Inc. THV3058_Rev.1.00_E Pin Description Pin# Symbol 1 OUT1 2 29 14 Function Description CH-1 output Boost driver pin for CH-1 external device. Output range is 0~5V. CS1 CS2 CS3 CH-1, CH-2, CH-3 over current sense Connect CS1 to sence registance connected Low side NMOS source. Connect CS2 to sence registance connected Low side NMOS source or diode anode. Connect CS3 to sence registance connected diode anode. 3 VREG5 5V regulator output 5V regulator output pin. Power supply for low voltage output. Connect an external capacitor(Typ:4.7μF) between this pin. 4 VGH_OK VGH power good signal Open drain output. Connect an approximately 100k ohm pull-up resistor. When VGH has generated normally, the output is fixed to High level. 5 31 INV1 INV2 CH-1,CH-2 error amplifier inverting input CH-1, CH-2 error amp inverting inputs. The voltage on INV1 is 1.2V, and INV2 is 0.85V, in the normal operation. 6 32 FB1 FB2 CH-1,CH-2 error amplifier output CH-1, CH-2 error amplifier outputs for phase compensation by connecting resistors and capacitors between FB1,2 and INV1,2. 7 PC3 CH-3 phase compensation Connect a capacitor between this pin for phase compensation. 8 SGND Signal Ground Ground for control circuit. 9 VO_3IN CH-3 output voltage feedback CH-3 output voltage feedback pin. 26 11 LL2 LL3 CH-2, CH-3 node connection to inductor CH-2, CH-3 node connection to inductor. 10 OUT3 CH-3 output Driver pin for CH-3 High side transistor. 25 12 BST2 BST3 CH-2, CH-3 High side capacitor connection CH-2, CH-3 power supply for High side driver output. Bootstrap diodes are built-in. 13 20 PGND PGND_CP Power Ground Ground for power supply 15 VREF Reference voltage Reference voltage(1.2V). Connect an external capacitor(0.01μF) between this pin for stability. Maximum load current is 1mA. 16 17 TEST1 TEST2 Test pin Connect to Ground or open in normal use.. 18 INV_VGH VGH comparator inverting input VGH comparator inverting input 19 NON_VGL VGL comparator non-inverting input VGL comparator non-inverting input 21 OUT_VGL VGL (charge pump -)output VGL drive output for negative voltage charge pump. V_VGL is used as input power supply. In PFM mode, this pin can be used as PMOS gate drive. 22 V_VGL VGL output voltage supply VGL output voltage supply. 23 V_VGH VGH output voltage supply VGH output voltage supply. 24 OUT_VGH VGH (charge pump +)output VGH drive output for positive voltage charge pump. V_VGH is used as power supply. In PFM mode, this pin can be used as NMOS gate drive. Copyright©2010 THine Electronics, Inc. 4/21 THine Electronics, Inc. THV3058_Rev.1.00_E Pin# Symbol Function Description 27 OUT_H2 CH-2 High side drive output CH-2 High side NMOS transistor drive for synchronous rectifier. 28 OUT_L2 CH-2 Low side driver output CH-2 Low side NMOS transistor drive for synchronous rectifier. Available even without Low side NMOS transistor. 30 SYSUVLO System UVLO input SYSUVLO pin shuts down the IC, when the power supply voltage (Vin) is lower than the predetermined voltage. The threshold voltage is 3.5V, the release voltage is 5.46V. by internal setting. The threshold voltage also can be set optionally by changing the external resistance value. 33 INV_HLDO HVLDO amplifier inverting input HVLDO inverting input. The voltage on this pin is 1.2V in the normal operation. 34 OUT_HLD O HVLDO output HVLDO output. Connect to an external capacitor(Typ:2.2μF). 35 LSW_OUT Output for CH-1 switch control Gate control pin for CH-1 external switch. Soft start function is built-in. 36 VCC Power supply Power supply for control. Copyright©2010 THine Electronics, Inc. 5/21 THine Electronics, Inc. THV3058_Rev.1.00_E Absolute Maximum Ratings Parameter Symbol Rating Unit Vcc 18 V CS1, CS2, CS3, INV1, INV2, FB1, FB2, VO3_IN, TEST1, TEST2, INV_VGH, NON_VGL, SYSUVLO, INV_HLDO, VL_in 6.5 V OUT1, VREG5, VGH_OK, PC3, VREF, OUT_L2, BST2-LL2, OUT_H2-LL2, BST3-LL3, OUT3-LL3 VL_out 6.5 V OUT_VGL, OUT_VGH, OUT_HLDO, LSW_OUT VH_out1 20 V LL2, LL3 VH_out2 18 V OUT_H2, BST2, OUT3, BST3 VH_out3 24.5 V V_VGL, V_VGH VH_cc 20 V Power Dissipation Pd 2556 (Ta<25°C) mW Junction Temperature Tj 150 °C Operating Ambient Temperature Range Ta -40 ~ +85 °C Tstg -55 ~ +150 °C Power Supply Voltage VCC Storage Temperature Range Power Dissipation Power Dissipation Pd (mW) 3000 2500 2000 1500 1000 500 0 -40 -20 0 20 40 60 80 100 120 140 160 Ambient Temperature Ta (℃) Copyright©2010 THine Electronics, Inc. 6/21 THine Electronics, Inc. THV3058_Rev.1.00_E Recommended Operating Conditions Parameter Min Typ Max Unit VCC voltage (Input Power Supply Voltage) 9 - 15 V V_VGH, V_VGL voltage 9 - 17 V OUT_HLDO, LSW_OUT voltage -0.1 - 17 V VGH_OK, SYSUVLO voltage -0.1 - 5.5 V - 0.01 - μF 2.2 4.7 - μF 1 2.2 - μF External capacitance for VREF pin External capacitance for VREG5 pin External capacitance for OUT_HLDO pin Copyright©2010 THine Electronics, Inc. 7/21 THine Electronics, Inc. THV3058_Rev.1.00_E Electrical Characteristics Parameter (Unless otherwise specified, VCC=12V, Ta=25°C ) Symbol Conditions Min Typ Max Unit Reference Voltage Vref Cvref = 0.01μF 1.188 1.200 1.212 V Reference Voltage (ch-2) Vref(ch-2) Vref x 0.85/1.2 0.84 0.85 0.86 V Line Regulation Vref (line) Iref = -100μA, VCC = 9 ~ 15V - 2 5 mV Load Regulation Vref (load) Iref = -100μA ~ -1mA - 2 5 mV Output Voltage Vreg5 (range) Io = -1mA - 5.0 - V Load Regulation Vreg5(load) Io = -0.1mA ~ -5mA - - 100 mV Line Regulation Vreg5(line) Io = -1mA, VCC = 9 ~ 15V - - 20 mV 430 500 570 kHz Reference Voltage Block 5V Regulator Block Oscilator Circuit Block Oscillation Frequency Fosc DTC Circuit Block Maximum Duty Cycle(ch-1) Dmax (ch-1) - 86 - % Maximum Duty Cycle(ch-2, 3) Dmax (ch-2, 3) - 84 - % Duty Cycle(VGH) D(VGH) - 50 - % Duty Cycle(VGL) D(VGL) - 18 - % Error Amplifier Block Vio1 Based on VREF pin voltage Vio2 Buffer connection Based on the value : VREF x 0.85/1.2 -10 - 10 mV gm(ch-3) PC3 = 2.5V -340 -520 -760 μS Threshold Voltage(VGH) Vthc(VGH) INV_VGH pin - 1.2 - V Threshold Voltage(VGL) Vthc(VGL) NON_VGL pin - 0 - V -20 - 20 mV V Offset voltage gm (ch-3) Charge Pump Block Offset Voltage(VGH, VGL) Vioc (VGH,VGL) VGH Power Good INV_VGH Threshold Voltage Vpgvgh INV_VGH pin - 1.02 - Output Resistance Ropgvgh VGH_OK = Low, Io = 1mA - 0.9 1.6 kΩ Off Leak Current Ioffpgvgh VGH_OK = 5V - 1 μA Copyright©2010 THine Electronics, Inc. 8/21 - THine Electronics, Inc. THV3058_Rev.1.00_E Parameter Symbol Conditions Min Typ Max Unit Reference Voltage Vref(hvldo) INV_HLDO pin - 1.2 - V Offset voltage Vhvldo(off) Ildo = -1mA -20 - 20 mV Load regulation Vhvldo (load) VO_1IN = 16V, OUT_HLDO = 15V Ildo = -0.1m ~ -20mA - 16.5 45 mV High side output voltage range Vhldo (hrange) Ildo = -10mA V_VGH -0.5 V_VGH -0.2 - V Low side output voltage range Vhldo (lrange) Ildo = -10mA 5.5 - - V Dropout voltage Vdrop (hldo) Ildo = -10mA,VO_1IN = 16V, INV_HLDO = 0V - 60 120 mV Ro(1sw_out) Io = 1mA - 1.2 - kΩ OUT1 H level Output Resistance Roh(ch-1) Ioh = -50mA - 17 - Ω OUT1 L level Output Resistance Rol(ch-1) Iol = 50mA - 11 - Ω OUT_H2 H level Output Resistance Roh(ch-2h) Ioh = -50mA - 17 - Ω OUT_H2 L level Output Resistance Rol(ch-2h) Iol = 50mA - 13 - Ω OUT_L2 H level Output Resistance Roh(ch-2l) Ioh = -50mA - 22 - Ω OUT_L2 L level Output Resistance Rol(ch-2l) Iol = 50mA - 6 - Ω OUT3 H level Output Resistance Roh(ch-3) Ioh = -50mA - 17 - Ω OUT3 L level Output Resistance Rol(ch-3) Iol = 50mA - 13 - Ω OUT_VGH H level Output Resistance Roh(vgh) V_VGH = 15V, Ioh = -50mA - 3.5 - Ω OUT_VGH L level Output Resistance Rol(vgh) V_VGH = 15V, Iol = 50mA - 3.5 - Ω OUT_VGL H level Output Resistance Roh(vgl) V_VGL = 15V, Ioh = -50mA - 11 - Ω OUT_VGL L level Output Resistance Rol(vgl) V_VGL = 15V, Iol = 50mA - 5 - Ω Vo3 VO3_IN pin 3.23 3.30 3.37 V Threshold Voltage (ch-1) Vuvp(ch-1) INV1 pin - 1.02 - V Threshold Voltage (ch-2) Vuvp(ch-2) INV2 pin - 0.64 - V Threshold Voltage (ch-3) Vuvp(ch-3) VO3_IN pin - 2.64 - V Threshold Voltage (VGH) Vuvp(vgh) INV_VGH pin - 1.02 - V Threshold Voltage (VGL) Vuvp(vgl) NON_VGL pin - 0.18 - V High Voltage LDO Block Switch Control Block LSW_OUT Output Resistance Output Block Output Voltage VO3 Output Voltage Under Voltage Protection Block Copyright©2010 THine Electronics, Inc. 9/21 THine Electronics, Inc. THV3058_Rev.1.00_E Parameter Symbol Conditions Min Typ Max Unit Timer Latch Block Timer (UVP) Timer(uvp) - 12.2 - ms Timer (OVP) Timer(ovp) - 2.44 - ms Soft Start Time(ch-1,3) ss1,3 - 10 - ms Soft Start Time(ch-2) ss2 - 7 - ms Soft Start Time(LSW) ss_lsw - 10 - ms VGH Delay Time vgh_delay - 5 - ms Soft Start Block Over Voltage Protection Block Threshold Voltage (ch-1) Vovp(ch-1) INV1 pin - 1.5 - V Threshold Voltage (ch-2) Vovp(ch-2) INV2 pin - 1.06 - V Threshold Voltage (ch-3) Vovp(ch-3) VO3_IN pin - 4.13 - V Threshold Voltage(ch-1) CS1(Vth) CS1 pin - 100 - mV Threshold Voltage(ch-2) CS2(Vth) CS2 pin - -100 - mV Threshold Voltage(ch-3) CS3(Vth) CS3 pin - -175 - mV Release Voltage Vuvlo VCC pin 5.0 5.46 6.0 V Hysteresis Voltage Vuvlo(hys) VCC pin 1.4 1.96 2.5 V Release Voltage Vsysuvlo SYSUVLO pin 1.44 1.56 1.68 V Hysteresis Voltage Vsysuvlo SYSUVLO pin 0.41 0.56 0.71 V Over Current Protection System UVLO Block System UVLO External Setting (hys) Overall Icc(op) Output Swing On(VCC pin) - 3.1 - mA Icc Output Swing Off - 2.1 - mA Average Current Consumption Copyright©2010 THine Electronics, Inc. 10/21 THine Electronics, Inc. THV3058_Rev.1.00_E Functional Description ● System UVLO UVLO stops the device operation if the input power supply voltage drops below a preset voltage. The threshold voltage is 3.5V, the release voltage is 5.46V by internal setting. When input power supply voltage(Vin) rises above 5.46V, the device goes into soft start mode and output voltage(Vo) increases gradually up to the regular voltage. If the input power supply voltage(Vin) drops below 3.5V, UVLO stops switching operation immediately and accompanies output voltage drop (see Figure 1). 5.46V Vin 3.50V switching Operating Stop Operating Stop Vo Figure 1.UVLO Operation The UVLO threshold voltage also can be set optionally by changing the external resistance value (see Figure 2). The UVLO threshold voltage are given by the following formulas. Please use lower the external resistance value than the internal resistance value. Release Voltage of System UVLO ＝ R1 + R2 1.56 × ------------------R2 Detection Voltage of System UVLO ＝ R1 + R2 1.0 × ------------------R2 Vin VCC R1 500k SYSUVLO R2 UVLO COMP 200k Figure 2. System UVLO Setting Circuit Copyright©2010 THine Electronics, Inc. 11/21 THine Electronics, Inc. THV3058_Rev.1.00_E ● DC/DC Converter CH-1, CH-2, CH-3 CH-1, CH-2 and CH-3 are PWM controllers. CH-1 is for Boost, CH2 is synchronous rectifier Buck and CH-3 is fixed 3.3V for Buck. Implementing over current protection circuit. The maximum duty cycle of CH-1 is internally limited to 86%, CH-2, CH-3 to 84%. ● Charge Pump Circuit VGH, VGL VGH is positive charge pump circuit, and VGL is negative one. These also operate in PFM mode. The pulse duty of VGH is fixed 50%, VGL is fixed 18%. ● High Voltage LDO Figure 3 shows the circuit of High Voltage LDO. Connect to an external output capacitor (Typ:2.2μF). High voltage LDO has built-in auto-recovery current limit function. The threshold current is 250mA. The output voltage is given by the following formula. Vhldo = VREF × ⎛ 1 + R1 ------⎞ = 1.2 × ⎛ 1 + R1 ------⎞ ⎝ ⎠ ⎝ R2 R2⎠ V_VGH VREF + Vhldo OUT_ HLDO cur_limit R1 INV_ HLDO 2.2uF R2 Figure 3. High Voltage LDO Circuit ● VGH_OK VGH_OK pin is open drain output of NMOS pull-down transistor. When the power supply is turned On, VGH_OK pin is Gnd level. When the voltage on VGH reaches 85% of normal output voltage, NMOS transistor is turned Off. Copyright©2010 THine Electronics, Inc. 12/21 THine Electronics, Inc. THV3058_Rev.1.00_E ● Soft Start To prevent excessive rise of output voltage during start-up. THV3058 have soft start circuits within CH-1, CH-2, CH-3 and load switch circuit. The output voltages of these internal soft start circuits rise according to each internal start-up sequences, and then make the output of DC/DC converter and the output after load switch rise up. Soft start operation is completed when these outputs have reached each regular voltages. Soft start time of CH-2 is 7msec and CH-1, CH-3 and load switch are set to 10msec (See Figure 4). ● Start-up Sequence Figure 4 shows the waveform of start-up sequence. CH-1 and CH-3 are operate after CH-2 is generated completely. VGL starts after the start-up of CH-1 is completed. VGH starts with 5msec delay, after VLS signal is generated. VGH 7msec 10msec 10msec 5msec VO1 VLS HVLDO VO3=3.3V VGH_OK VO2 VGL Figure 4. Start-up Sequence Waveforms ● Thermal Shut Down(TSD) THV3058 has the built-in Thermal Shut Down circuit to prevent damages caused by excessive heat. When the junction temperature reaches 175°C, TSD circuit stops switching operation and the regulator VREG5 operation. The release temperature is 160°C. ● Voltage Reference Circuit Voltage reference circuit generates temperature-compensated voltage(= 1.2V) for use as the internal reference volteage. Also, an external load current can be obtained from the power supply at VREF pin, up to 1mA, maximum. Please connect a capacitor of 0.01μF between VREF pin and SGND for stability. Copyright©2010 THine Electronics, Inc. 13/21 THine Electronics, Inc. THV3058_Rev.1.00_E ● Under Voltage Protection(UVP) UVP circuit shuts down the power supply, when the under voltage condition continues for longer time than a predetermined time. The internal comparator monitors the output voltage feedback pin. When the output voltage drops under a predetermined voltage, the timer latch circuit is activated (See Figure 5). When under voltage condition continues for more than 12.2msec, the device stops switching operation and goes into latch state. The timer will be reset, if UVLO operates before the device goes into the latch state. In case of VGH and VGL, UVP is operated in 3msec after the startup. Please set the startup time of charge pumps within 15msec to prevent abnormal operation. Output Voltage Detection - AMP or COMP + VREF UVP COMP + SCP Timer Latch Vth Figure 5. Under Voltage Detection Circuit ● Over Voltage Protection(OVP) OVP shuts down the power supply, when the output voltage of CH-1, CH-2 and CH-3 exceeds a predetermined voltage. When the voltage of INV1 pin exceeds 1.5V on CH-1, INV2 pin exceeds 1.06V on CH-2 and ,VO3_IN pin exceeds 4.13V on CH-3, controller turns off an external MOS transistor and stops switching operation, respectively (See Figure 6). As to CH-2 and CH-3, when abnormal output is detected, timer latch circuit is activated. When abnormal output continues 2.44msec, the device stops switching operation and goes into the latch state. Output Voltage Dtection AMP PWM COMP - OUT + SS VREF OVP COMP + Vth Figure 6. Over Voltage Detection Circuit Copyright©2010 THine Electronics, Inc. 14/21 THine Electronics, Inc. THV3058_Rev.1.00_E ● Over Current Protection(OCP) CH-1, CH-2 and CH-3 have built-in over current protection circuit. Over current detection circuit monitors the load current. When load current exceeds a predetermined current, the external MOS transistor is turned off and the device stops switching operation for 128usec(See Figure 7, 8, 9). The maximam current are given by the following formulas. Vin Vcs1 Vin 0.1 × = × [A] Vo1 Rcs1 Vo1 Rcs1 Vcs2 0.1 = = [A] Rcs2 Rcs2 Vcs3 0.175 = = [A] Rcs3 Rcs3 I max1 = I max2 I max3 If the over current is detected continuously, the switching pulse is generated at 128usec interval and that causes output voltage drop. When the output voltage drops below the predetermined voltage for more than 12.2msec, SCP stops switching operation and the device goes into latch state. Vin VREG5 Vin BST2 PWM COMP VO1 OUT_H2 PWM COMP Output current Io1 OUT1 CS1 + - PGND Rcs1 Vcs1=0.1V VO2 LL2 Output current Io2 OUT_L2 + - Detection current Vcs3=0.10V Figure.7 CH-1 Over Current Detection Circuit CS2 PGND Rcs2 Detection current Figure.8 CH-2 Over Current Detection Circuit Vin VREG5 BST3 PWM COMP OUT3 VO3=3.3V LL3 + - Vcs3=0.175V Output current Io3 CS3 PGND Rcs3 Detection current Figure.9 CH-3 Over Current Detection Circuit Copyright©2010 THine Electronics, Inc. 15/21 THine Electronics, Inc. THV3058_Rev.1.00_E ● Output Voltage Setting Figure 10 shows CH-1 and CH-2 output voltage setting model. The voltage on INV1 pin is equal to the voltage on VREF pin due to the effect of feed-back. The voltage on INV_1 pin is the divided voltage of Vout by R1 and R2. So, R2 Vout1 × ------------------- = VREF R1 + R2 Vout1 Therefore, Vout1 = VREF × ⎛⎝ 1 + R1 ------⎞⎠ R2 R1 R3 C1 Since VREF =1.2V, then Vout1 = 1.2 × ⎛ 1 + R1 ------⎞ ⎝ R2⎠ R2 Similarly the output voltage of CH-2 is described as follows. R4 Vout2 = 0.85 × ⎛⎝ 1 + ------⎞⎠ R5 Vout2 R4 R6 C3 FB1 C2 Error AMP1 INV1 PWM Comp. - VREF =1.2V + FB2 C4 Error AMP2 PWM Comp. - R5 INV2 VREF =0.85V + Figure 10. Output Voltage Setting Copyright©2010 THine Electronics, Inc. 16/21 THine Electronics, Inc. THV3058_Rev.1.00_E Description of charge pumps. As to VGH, the voltage on INV_VGH pin is controlled to be equal to the voltage of VREF (See Figure 11). The voltage on INV_VGH pin is the divided voltage of VGH by R9 and R10. So VGH = VREF × ⎛ 1 + R7 ------⎞ = 1.2 × ⎛ 1 + R7 ------⎞ ⎝ ⎝ R8⎠ R8⎠ VGH R7 INV_VGH COMP VREF =1.2V R8 + Output Circuit Figure 11. Output Setting for VGH As to VGL, the voltage on NON_VGL pin is controlled to be zero (See Figure 12, Figure 13). The current through NON_VGL is negligible. Therefore R9 R9 VGL = – ( VREF ) × --------- = – 1.2 × --------R10 R10 VGL R9 NON_VGL COMP + - Output Circuit R9 R10 R10 VGL VREF =1.2V 0V Figure 12. Output Setting for VGL Copyright©2010 THine Electronics, Inc. VREF （1.2V） Figure 13. Output Setting for Inverting Mode 17/21 THine Electronics, Inc. THV3058_Rev.1.00_E Temperature Characteristics VREF (ch-2) vs Ambient Temperature VREF vs Ambient Temperature 1.220 0.870 1.215 0.865 Max. 1.218V Vref(ch-2) [V] Vref [V] 1.210 1.205 1.200 1.195 0.855 0.850 0.845 0.840 1.190 Min. 1.182V Min. 0.835V 0.835 1.185 0.830 1.180 -40 -20 0 20 40 60 Ambient Temperature[℃] -40 80 Max. 590kHz 540 Vo3 [V] 520 500 480 460 440 420 Min. 410kHz 400 -40 -20 0 20 40 60 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 3.24 3.22 3.20 20 40 60 80 60 80 60 80 Max. 3.39V Min. 3.21V -40 80 -20 0 20 40 Ambient Temperature[℃] Ambient Temperature[℃] SS2 vs Ambient Temperature SS1, SS3, SS_LSW vs Ambient Temperature 12.0 8.5 Max. 11.9ms 11.5 Max. 8.4ms 8.0 11.0 7.5 10.5 SS2 [ms] SS1, SS3, SS_LSW [ms] 0 Ambient Temperature[℃] 600 580 560 -20 Vo3 vs Ambient Temperature Oscillation Frequency vs Ambient Temperature Fosc [kHz] Max. 0.865V 0.860 10.0 9.5 7.0 6.5 9.0 Min. 5.8ms 6.0 8.5 Min. 8.1ms 5.5 8.0 -40 -20 0 20 40 60 Ambient Temperature[℃] Copyright©2010 THine Electronics, Inc. -40 80 -20 0 20 40 Ambient Temperature[℃] 18/21 THine Electronics, Inc. THV3058_Rev.1.00_E CS1(Vth) vs Ambient Temperature 6.5 6.3 6.1 5.9 5.7 5.5 5.3 5.1 4.9 4.7 4.5 Max. 6.5V CS1(Vth) [mV] Vuvlo [V] UVLO vs Ambient Temperature Min. 4.5V -40 -20 0 20 40 60 80 150 140 130 120 110 100 90 80 70 60 50 Max. 140mV Min. 60mV -40 Ambient Temperature[℃] -20 0 20 40 60 80 Ambient Temperature[℃] CS3(Vth) vs Ambient Temperature CS2(Vth) vs Ambient Temperature -50 -120 Max. -60mV Max. -120mV -140 -80 CS3(Vth) [mV] CS2(Vth) [mV] -60 -70 -90 -100 -110 -120 -130 -140 -160 -180 -200 Min. -230mV -220 Min. -140mV -240 -150 -40 -20 0 20 40 60 80 Ambient Temperature[℃] Copyright©2010 THine Electronics, Inc. 19/21 -40 -20 0 20 40 60 Ambient Temperature[℃] THine Electronics, Inc. 80 THV3058_Rev.1.00_E Package Outline QFN36 pin 0.90MAX 5.0 +/-0.1 0.4 +/-0.05 0.2TYP 0.7MAX Note) The Back Side of Exposed Pad must be connected to GND, in order to improve thermal properties. Copyright©2010 THine Electronics, Inc. 20/21 R : 0.2 0.18 +/-0.05 3.7 +/-0.1 0.45 5.0 +/-0.1 3.7 +/-0.1 Pitch : 0.4 Unit : mm THine Electronics, Inc. THV3058_Rev.1.00_E Notices and Requests 1. The product specifications described in this material are subject to change without prior notice. 2. The circuit diagrams described in this material are examples of the application which may not always apply to the customer's design. We are not responsible for possible errors and omissions in this material. Please note if errors or omissions should be found in this material, we may not be able to correct them immediately. 3. This material contains our copy right, know-how or other proprietary. Copying or disclosing to third parties the contents of this material without our prior permission is prohibited. 4. Note that if infringement of any third party's industrial ownership should occur by using this product, we will be exempted from the responsibility unless it directly relates to the production process or functions of the product. 5. This product is presumed to be used for general electric equipment, not for the applications which require very high reliability (including medical equipment directly concerning people's life, aerospace equipment, or nuclear control equipment). Also, when using this product for the equipment concerned with the control and safety of the transportation means, the traffic signal equipment, or various Types of safety equipment, please do it after applying appropriate measures to the product. 6. Despite our utmost efforts to improve the quality and reliability of the product, faults will occur with a certain small probability, which is inevitable to a semi-conductor product. Therefore, you are encouraged to have sufficiently redundant or error preventive design applied to the use of the product so as not to have our product cause any social or public damage. 7. Please note that this product is not designed to be radiation-proof. 8. Customers are asked, if required, to judge by themselves if this product falls under the category of strategic goods under the Foreign Exchange and Foreign Trade Control Law. 9. The product or peripheral parts may be damaged by a surge in voltage over the absolute maximum ratings or malfunction, if pins of the product are shorted by such as foreign substance. The damages may cause a smoking and ignition. Therefore, you are encouraged to implement safety measures by adding protection devices, such as fuses. THine Electronics, Inc. E-mail : [email protected] Copyright©2010 THine Electronics, Inc. 21/21 THine Electronics, Inc.