TEA1732LTS/1H

TEA1732LTS GreenChip SMPS control IC Rev. 1 — 18 March 2014 Product data sheet 1. General description The TEA1732LTS is a low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies. The TEA1732LTS operates in peak current and frequency control mode. Frequency jitter has been implemented to reduce ElectroMagnetic Interference (EMI). Slope compensation is integrated for Continuous Conduction Mode (CCM) operation. The TEA1732LTS IC features OverPower Protection (OPP). The controller accepts an overpower situation for a limited amount of time. Mains undervoltage protection (brownout), output OverVoltage Protection (OVP), and OverTemperature Protection (OTP) can be implemented using a minimal number of external components. At low-power levels, the primary peak current is set to 25 % of the maximum peak current. The switching frequency is reduced to limit the switching losses. The combination of fixed frequency operation at high output power and frequency reduction at low output power provides high efficiency over the total load range. The TEA1732LTS makes the design of low-cost, highly efficient and reliable supplies for power requirements up to 75 W easier by requiring a minimum number of external components. 2. Features and benefits           SMPS controller IC enabling low-cost applications Large input voltage range (12 V to 30 V) Integrated OverVoltage Protection (OVP) on the VCC pin Accurate OverVoltage Protection (OVP) via the ISENSE pin Very low supply current during start-up and restart (10 A typical) Low supply current during normal operation (0.58 mA typical without load) Internal overpower time-out Overpower protection or high/low line compensation Fixed switching frequency with frequency jitter to reduce EMI Frequency reduction with fixed minimum peak current to maintain high efficiency at low output power levels  Frequency increase at peak power operation  Slope compensation for CCM operation  Integrated soft-start TEA1732LTS NXP Semiconductors GreenChip SMPS control IC     Low and adjustable OverCurrent Protection (OCP) trip level Mains undervoltage protection (brownout) External OverTemperature Protection (OTP) IC overtemperature protection 3. Applications  All applications that require an efficient and cost-effective power supply solution up to 75 W. 4. Ordering information Table 1. Ordering information Type number Package TEA1732LTS/1 Name Description Version TSOP6 plastic surface-mounted package; 6 leads SOT457 5. Block diagram UHVWDUW 9&&VWDUW 6 9 9&& P$ 9&&VWRS 9 ODWFKUHVHW ODWFK  293DX[ '5,9(5  5 ,6(16( 273 EURZQRXW įPD[SURW RYHUORDG 4 0,1,080 9FWUO,SHDN 9VRIWVWDUW ,LQ SURWORZ 4 5 29(532:(5 &203(16$7,21 &75/ SURWORZ &2817 72 9  $  3527(&7 FORFN 273 ODWFK 6 VWRS  6/23( &203(16$7,21 SRZHUGRZQ SURWORZ VRIWVWDUW N 9&&VWDUW 5 2&3 9 02'8/$7,21 įPD[ 6 293DX[ /(%  &2817 72 $1$/2* &21752/ UHVWDUW %/$1. UHVWDUW 9 9FWUO,SHDN įPD[SURW VHW VWRS įPD[ 6 4 GULYHU GULYHU 9FWUO,SHDN P9 PVHF GHOD\ '59 7(03(5$785( 3527(&7,21 5 VHW 26&,//$725 įPD[ &2817 293 72 IUHTXHQF\UHGXFWLRQ 9 RYHUORDG SRZHUGRZQ 9 9FFVLQN *1' 9 9FFVLQN 5(67$57 &21752/ 4  ODWFKUHVHW OLQ EURZQRXW 0$,16 '(7(&7,21 293 ODWFK ',*,7$/&21752/ DDD Fig 1. TEA1732LTS block diagram TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 2 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 6. Pinning information 6.1 Pinning 9&&   '5,9(5 ,& *1'  3527(&7   ,6(16(  &75/ DDD Fig 2. TEA1732LTS pin configuration 6.2 Pin description Table 2. Pin description Symbol Pin Description VCC 1 supply voltage GND 2 ground PROTECT 3 protection and mains detect input CTRL 4 control input ISENSE 5 current sense and accurate OVP input DRIVER 6 gate driver output 7. Functional description 7.1 General control The TEA1732LTS contains a controller for a flyback circuit. A typical configuration is shown in Figure 3. TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 3 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC ' ' & 6 5 & 5 9&& *1' 5 3527(&7    ,&    5 ,6(16( &75/ ' & 7 '5,9(5 = 5 2 2 5 & 5 ' ' 5 DDD Fig 3. TEA1732LTS typical configuration 7.2 Start-up and UnderVoltage LockOut (UVLO) Initially, the capacitor on the VCC pin, C3, is charged from the high-voltage mains via resistor R1. As long as VCC is below Vstartup, the IC current consumption is low (10 A typical). When VCC reaches Vstartup, the IC first waits for the mains voltage to exceed the brownin level, and the PROTECT pin to reach the Vdet(PROTECT)(L) voltage. When both conditions are met, the IC starts switching. An internal soft-start time of 3.5 ms allows the ISENSE peak voltage to increase gradually to prevent audible noise. In a typical application, the auxiliary winding of the transformer takes over the supply voltage. If a protection is triggered, the controller stops switching. Depending on the protection triggered, it either causes a restart or latches the converter to an off-state. The brownout and maximum duty cycle protections cause a save restart. The OPP, UVLO, OVP, external OTP and internal OTP protections latch the converter to an off-state. A restart protection disables the switching of the IC. The supply voltage of the IC drops to the UVLO level. When the UVLO level is reached, the IC switches to Power-down mode, where it consumes a low supply current (10 A typical). The VCC capacitor is recharged via R1 until the VCC start-up level is reached. A delayed restart is performed to lower the average input power during a fault condition. Depending on the cause of the restart protection, the restart sequence that discharges and recharges the VCC capacitor is performed once or repeated three times, before switching recommences (See Figure 4). When a latched protection is triggered, the TEA1732LTS immediately enters Power-down mode. The VCC pin is clamped to a voltage just above the latch protection reset voltage (Vrst(latch) + 0.9 V). TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 4 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC EURZQLQ UHFWLILHG PDLQV 9VWDUWXS 9WK89/2 9&& 9GHW3527(&7 3527(&7 ,6(16( VRIWVWDUW RXWSXWYROWDJH PD[LPXPORDG RXWSXWORDG VWDUWLQJ FRQYHUWHU FKDUJLQJ9&& FDSDFLWRU Fig 4. QRUPDO RSHUDWLRQ UHVWDUW GHOD\ UHVWDUW RYHUSRZHU WLPHRXW DDD Start-up sequence, normal operation and restart sequence When the voltage on pin VCC drops below the Vth(UVLO) level during normal operation, the controller stops switching. The TEA1732LTS waits for the rectified mains to charge the VCC pin using resistor R1. 7.3 Supply management All internal reference voltages are derived from a temperature compensated on-chip band gap circuit. Internal reference currents are derived from a trimmed and temperature compensated current reference circuit. 7.4 External overtemperature protection and mains detect input (pin PROTECT) The PROTECT input combines the functions of the external OverTemperature Protection (OTP) and the mains voltage detection. An internal clock separates the period of measuring the mains voltage and the period of detecting external OverTemperature Protection (OTP). In a typical application, the PROTECT pin is connected to the mains via a resistor. It is connected to ground via a negative temperature coefficient (NTC) thermistor and a diode. When measuring the mains voltage, the PROTECT pin is regulated to 0.25 V so that the external diode does not conduct any current. The current into the PROTECT pin is measured and stored. Once the measured current is above the brownin level, the system is allowed to start switching. If the mains voltage is continuously below the brownout level for at least 32 ms, a brownout is detected. The system immediately stops switching and performs a restart. The VCC capacitor is discharged to the UVLO level and then charged to Vstartup once before switching recommences (See Figure 5). TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 5 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC EURZQLQ UHFWLILHG PDLQV YROWDJH EURZRXW PV !PV '5,9(5 3527(&7 9VWDUWXS 9&& 9WK89/2 DDD Fig 5. Mains detection When detecting the external temperature, a current of 84 A (typical) out of the PROTECT pin flows through the external capacitor and the NTC thermistor. If the PROTECT voltage at the end of the measuring period is below Vdet(PROTECT) for four consecutive measuring cycles, the IC detects overtemperature and activates a latched protection. The offset due to the current from the mains is canceled internally by remembering the sinking current Iin when measuring the mains voltage (See Figure 6). The remembered current is also used as the input of high/low line compensation. 9GHW3527(&7 93527(&7 9FODPS3527(&7 OLQ $ O3527(&7 OLQ,23527(&7 ODWFKHG SURWHFWLRQ Fig 6. DDD External overtemperature protection An internal clamp of 4.1 V (typical) protects this pin from excessive voltages. 7.5 Duty cycle control (pin CTRL) Pin CTRL regulates the output power of the converter. This pin is connected to an internal voltage source of 5.4 V via an internal resistor (typical resistance: 7 k). The CTRL pin voltage sets the peak current which is measured using the ISENSE pin (see Section 7.8). At low output power, the switching frequency is reduced (see Section 7.11). The maximum duty cycle is limited to 80 % (typical). After eight consecutive converter strokes at maximum duty cycle the restart protection is activated. In a restart, the VCC capacitor is quickly discharged to the Vth(UVLO) level and recharged to the start-up level from the high-voltage mains, before switching recommences. This occurs when the mains input voltage is removed. 7.6 Slope compensation (pin CTRL) A slope compensation circuit is integrated for CCM. The slope compensation guarantees stable operation for duty cycles exceeding 50 %. TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 6 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 7.7 Overpower timer A temporary overload situation is allowed. If Vctrl(Ipeak) (see Figure 1) set by pin CTRL exceeds 400 mV, an internal timer is started. If the overload situation continues to exist for more than 180 ms (typical), an OverPower Protection (OPP) is triggered (see Figure 7). 2XWSXWORDG 2XWSXWYROWDJH P9 9,6(16( 7LPHRXWOHYHO ,QWHUQDOWLPHU KLJKORDG QRUPDO ORDG KLJKORDG SURWHFWLRQ DDD Fig 7. Overpower delay The TEA1732LTS enters the overpower restart mode when the overload time-out is reached. In overpower restart mode, the VCC capacitor is discharged to UVLO level and then charged to the start-up level three times before the converter switches again. 7.8 Current mode control (pin ISENSE) Current mode control is used because it ensures a good line regulation. Pin ISENSE senses the primary current across external resistor R6 and compares it with an internal control voltage. The internal control voltage is proportional to the CTRL pin voltage (see Figure 8). TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 7 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 9FWUOOSHDN IUHTXHQF\ LQFUHDVH 9     IUHTXHQF\ UHGXFWLRQ     9&75/9 DDD Fig 8. Peak current control Leading edge blanking prevents false triggering due to capacitive discharge when switching on the external power switch (see Figure 9). tleb Vsense(max) VISENSE t 014aaa932 Fig 9. Leading edge blanking 7.9 Overvoltage protection (pin ISENSE) Accurate overvoltage protection can be realized at the ISENSE pin by sensing the auxiliary voltage. During the primary stroke, diode D4 (see Figure 3) is blocked so that the converter still works under current mode control. During the secondary stroke, the ISENSE voltage represents the output voltage via the resistor divider R5 and R3 (see Figure 3). The ISENSE voltage is sampled 2 s after the gate signal drops to avoid the ringing of the transformer. If the sampled voltage exceeds Vovp(ISENSE) for four consecutive switching cycles, the IC triggers the latched protection. 7.10 Overvoltage protection (pin VCC) An OverVoltage Protection (OVP) circuit is connected to the VCC pin. When the VCC exceeds Vth(OVP) (30 V typical) for four consecutive switching cycles, the IC triggers the latched protection. When VCC drops below Vth(OVP) before count = 4 is reached, the counter is reset to zero. TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 8 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 7.11 Peak power, high-power and low-power operation During high-power operation, with the converter running at a 65 kHz (typical) fixed frequency, the power is controlled by varying the peak current. A peak power mode is implemented to supply a short overload situation. In peak power mode, both frequency and peak current are increased. In low-power operation switching losses are reduced by lowering the switching frequency. The switching frequency of the converter is reduced while the peak current is set to 25 % of the maximum peak current (see Figure 8 and Figure 10). SHDNSRZHU  IRVF N+] KLJKSRZHU  ORZSRZHU     9&75/9 DDD Fig 10. Frequency control 7.12 Overpower or high/low line compensation The overpower compensation function can be used to realize a maximum output power which is nearly constant over the full input mains. The overpower compensation circuit measures the input current on the PROTECT pin and outputs a proportionally dependent current on the ISENSE pin. The DC voltage across resistor R3 (see Figure 3) limits the maximum peak current on the current sense resistor (see Figure 11). At low output power levels, the overpower compensation circuit is switched off. TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 9 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC ORSF,6(16( —$    ,3527(&7—$ DDD Fig 11. Overpower compensation 7.13 Driver (pin DRIVER) The driver circuit to the gate of the power MOSFET has a current sourcing capability of typically 300 mA and a current sink capability of typically 750 mA. This enables a fast turn-on and turn-off of the power MOSFET for efficient operation. 7.14 OverTemperature Protection (OTP) If the junction temperature exceeds the thermal shutdown limit, integrated overtemperature protection ensures that the IC stops switching. OTP is a latched protection. It can be reset by removing the voltage on pin VCC. TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 10 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 8. Limiting values Table 3. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit supply voltage continuous 0.4 +30 V t < 100 ms - 35 V current limited 0.4 +5 V 0.4 +5.5 V Voltages VCC VPROTECT voltage on pin PROTECT VCTRL voltage on pin CTRL VISENSE voltage on pin ISENSE current limited to 2 mA 0.7 +5 V current on pin VCC  < 10 % - 0.4 A 1 +1 mA Currents IVCC II(PROTECT) input current on pin PROTECT ICTRL current on pin CTRL 3 0 mA IISENSE current on pin ISENSE 10 +0.5 mA IDRIVER current on pin DRIVER  < 10 % 0.4 +1 A Ptot total power dissipation Tamb < 75 C - 0.29 W Tstg storage temperature 55 +150 C Tj junction temperature 40 +150 C - 4000 V - 750 V General ESD VESD electrostatic discharge voltage class 1 human body model changed device model [1] [1] Equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor. 9. Thermal characteristics Table 4. TEA1732LTS Product data sheet Thermal characteristics Symbol Parameter Conditions Typ Unit Rth(j-a) thermal resistance from junction to ambient in free air; single layer JEDEC test board 259 K/W Rth(j-c) thermal resistance from junction to case in free air; JEDEC test board 152 K/W All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 11 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 10. Characteristics Table 5. Characteristics Tamb = 25 C; VCC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Supply voltage management (pin VCC) Vstartup start-up voltage 19.3 21.5 23.8 V Vth(UVLO) undervoltage lockout threshold voltage 11.2 12.5 13.8 V Vclamp(VCC) clamp voltage on pin VCC activated during latched protection; ICC = 100 A - Vrst(latch) + 0.9 - V activated during latched protection, ICC = 1 mA - - Vrst(latch) + 3.5 V ICC(restart) restart supply current 1 2.5 - mA Vhys hysteresis voltage Vstartup - Vth(UVLO) 6.6 9.1 11.6 V ICC(startup) start-up supply current VCC < Vstartup 5 10 15 A ICC(oper) operating supply current no-load on pin DRIVER;  = 2 %; excluding optocurrent - 0.58 - mA no-load on pin DRIVER;  = 25 %, excluding optocurrent - 0.62 - mA 3.5 4.5 5.5 V 1.95 2 2.05 V VPROTECT = Vdet(PROTECT) 89 84 79 A II(PROTECT) = 6 A; mains detect period; Cmax(PROTECT) = 10 pF 205 260 315 mV 3.5 4.1 4.7 V Vrst(latch) latched reset voltage Protection input (pin PROTECT) Vdet(PROTECT) detection voltage on pin PROTECT IO(PROTECT) output current on pin PROTECT Vclamp(PROTECT) clamp voltage on pin PROTECT II(PROTECT) = 200 A [1] Mains detect (pin PROTECT) Imains(bi) mains brownin current 5.58 6 6.42 A Imains(bo) mains brownout current 4.93 5.3 5.67 A for minimum flyback peak current 1.5 1.8 2.1 V for maximum flyback peak current 3.4 3.9 4.3 V 5 7 9 k VCTRL = 1.4 V 0.7 0.5 0.3 mA VCTRL = 3.7 V 0.28 0.2 0.12 mA Peak current control (pin CTRL) VCTRL voltage on pin CTRL Rint(CTRL) internal resistance on pin CTRL IO(CTRL) output current on pin CTRL TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 12 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC Table 5. Characteristics …continued Tamb = 25 C; VCC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Pulse width modulator fosc oscillator frequency peak power 73 80 87 kHz high power 60.5 65 69.5 kHz fmod modulation frequency 195 260 325 Hz fmod modulation frequency high power variation 3 4 5 kHz max maximum duty cycle 77 80 83 % Ncy(dmax) number of switching cycles with maximum duty cycle 7 - 8 Vstart(red)f frequency reduction start voltage pin CTRL dropping to low power 1.5 1.8 2.1 V Vstart(incr)f frequency increase start voltage pin CTRL 2.8 3.1 3.4 V VM(f)max maximum frequency peak voltage pin CTRL 3.6 3.9 4.2 V V(zero) zero duty cycle voltage pin CTRL 1.15 1.45 1.75 V 140 180 220 ms 0.47 0.50 0.53 V Overpower protection tto(opp) overpower protection time-out time Current sense and overpower compensation (pin ISENSE) V/t = 0 V/s Vsense(max) maximum sense voltage tPD(sense) sense propagation delay 130 155 180 ns Vth(sense)opp overpower protection sense threshold voltage 370 400 430 mV VISENSE/t slope compensation voltage on pin ISENSE - 20 - mV/s tleb leading edge blanking time 275 325 375 ns Iopc(ISENSE) overpower IPROTECT = 10 A; compensation current Vsense(max) > 400 mV on pin ISENSE IPROTECT = 18 A; Vsense(max) > 400 mV 1 1.88 3 A 5 5.88 7 A 2.7 3.5 4.2 ms - 0.3 0.25 A high-power mode Soft start (pin ISENSE) tstart(soft) soft start time Driver (pin DRIVER) Isource(DRIVER) source current on pin VDRIVER = 2 V DRIVER TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 13 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC Table 5. Characteristics …continued Tamb = 25 C; VCC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Isink(DRIVER) sink current on pin DRIVER VDRIVER = 2 V 0.25 0.3 - A VDRIVER = 10 V 0.6 0.75 - A VO(DRIVER)max maximum output voltage on pin DRIVER 9 10.5 12 V Overvoltage protection (pins VCC and ISENSE) Vovp(VCC) overvoltage protection voltage on pin VCC 29 30 31 V Vovp(ISENSE) overvoltage protection voltage on pin ISENSE 2.4 2.5 2.6 V tblank(ovp)ISENSE overvoltage protection blanking time on pin ISENSE 1.7 2.1 2.5 s Ncy(ovp) number of overvoltage protection cycles 4 4 4 130 140 150 Temperature protection Tpl(IC) [1] IC protection level temperature C The clamp voltage on the PROTECT pin is lowered when the IC is in Power-down mode. (latched or restart protection) TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 14 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 11. Application information A power supply with the TEA1732LTS is a flyback converter operating in continuous conduction mode (see Figure 12). Capacitor C3 buffers the IC supply voltage, which is powered via resistor R1 for start-up and via the auxiliary winding during normal operation. Sense resistor R6 converts the current through MOSFET S1 into a voltage on pin ISENSE. The value of resistor R6 defines the maximum primary peak current through MOSFET S1. Capacitor C2 is added to reduce noise on the CTRL pin. Resistor R4 is required to limit the current spikes to pin DRIVER because of parasitic inductance of current sense resistor R6. Resistor R4 also dampens possible oscillations of MOSFET S1. Adding a bead on the gate pin of MOSFET S1 can be required to prevent local oscillations of the MOSFET. ' & —) ' 6 5 5 0ȍ 9&& *1' 5 0ȍ 3527(&7    ,&    '5,9(5 & —) = Nȍ &75/ 2 & Q) 5 Nȍ 7 5 ,6(16( ' & ȍ 5 Nȍ 2 5 ȍ ' ' 5 ȍ DDD Fig 12. TEA1732LTS application diagram TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 15 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 12. Package outline 3ODVWLFVXUIDFHPRXQWHGSDFNDJH7623OHDGV ' 627 % $ ( \ +(  ; Y 0 $   4 SLQ LQGH[ $ $ F    /S H ES Z 0 % GHWDLO;   PP VFDOH ',0(16,216PPDUHWKHRULJLQDOGLPHQVLRQV 81,7 $ $ ES F ' ( H +( /S 4 Y Z \ PP                       287/,1( 9(56,21 5()(5(1&(6 ,(& -('(& -(,7$  6& 627 (8523($1 352-(&7,21 ,668('$7(   Fig 13. Package outline SOT457 (TSOP6) TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 16 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 13. Revision history Table 6. Revision history Document ID Release date Data sheet status Change notice Supersedes TEA1732LTS v.1 20140318 Product data sheet - - TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 17 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC 14. Legal information 14.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘short data sheet’ is explained in section “Definitions”. [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. 14.2 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between NXP Semiconductors and its customer, unless NXP Semiconductors and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the NXP Semiconductors product is deemed to offer functions and qualities beyond those described in the Product data sheet. 14.3 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors. In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors. Right to make changes — NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. TEA1732LTS Product data sheet Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors and its suppliers accept no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NXP Semiconductors hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NXP Semiconductors products by customer. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 18 of 20 TEA1732LTS NXP Semiconductors GreenChip SMPS control IC Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Non-automotive qualified products — Unless this data sheet expressly states that this specific NXP Semiconductors product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. NXP Semiconductors accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without NXP Semiconductors’ warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond NXP Semiconductors’ specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NXP Semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NXP Semiconductors’ standard warranty and NXP Semiconductors’ product specifications. Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. 14.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. GreenChip — is a trademark of NXP Semiconductors N.V. 15. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com TEA1732LTS Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 18 March 2014 © NXP Semiconductors N.V. 2014. All rights reserved. 19 of 20 NXP Semiconductors TEA1732LTS GreenChip SMPS control IC 16. Contents 1 2 3 4 5 6 6.1 6.2 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 8 9 10 11 12 13 14 14.1 14.2 14.3 14.4 15 16 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 Functional description . . . . . . . . . . . . . . . . . . . 3 General control . . . . . . . . . . . . . . . . . . . . . . . . . 3 Start-up and UnderVoltage LockOut (UVLO) . . 4 Supply management. . . . . . . . . . . . . . . . . . . . . 5 External overtemperature protection and mains detect input (pin PROTECT). . . . . . . . . . . . . . . 5 Duty cycle control (pin CTRL). . . . . . . . . . . . . . 6 Slope compensation (pin CTRL). . . . . . . . . . . . 6 Overpower timer . . . . . . . . . . . . . . . . . . . . . . . . 7 Current mode control (pin ISENSE) . . . . . . . . . 7 Overvoltage protection (pin ISENSE) . . . . . . . . 8 Overvoltage protection (pin VCC). . . . . . . . . . . 8 Peak power, high-power and low-power operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Overpower or high/low line compensation . . . . 9 Driver (pin DRIVER) . . . . . . . . . . . . . . . . . . . . 10 OverTemperature Protection (OTP) . . . . . . . . 10 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 11 Thermal characteristics . . . . . . . . . . . . . . . . . 11 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 12 Application information. . . . . . . . . . . . . . . . . . 15 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 16 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 18 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 18 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Contact information. . . . . . . . . . . . . . . . . . . . . 19 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP Semiconductors N.V. 2014. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 18 March 2014 Document identifier: TEA1732LTS