TEA1733T; TEA1733LT GreenChip SMPS control IC Rev. 01 — 26 October 2009 Objective data sheet 1. General description The TEA1733(L) is a low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies. The TEA1733(L) operates in fixed frequency mode. To reduce ElectroMagnetic Interference (EMI), frequency jitter has been implemented. For Continuous Conduction Mode (CCM) operation, slope compensation is integrated. The TEA1733(L) IC features an OverPower Protection (OPP). The controller can be set to accept an overpower situation for a limited amount of time. Two pins are reserved for protection purposes. Input UnderVoltage Protection (UVP) and OverVoltage Protection (OVP), output OVP and OverTemperature Protection (OTP) can be implemented with a minimal number of external components. At low power levels the primary peak current is set to 25 % of the maximum peak current and 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 TEA1733(L) enables low cost, highly efficient and reliable supplies for power requirements up to 75 W to be designed easily and with a minimum number of external components. 2. Features 2.1 Features n n n n n n n n n n n n n n SMPS controller IC enabling low cost applications Large input voltage range (12 V to 30 V) Very low supply current during start-up and restart (typically 10 µA) Low supply current during normal operation (typically 0.5 mA without load) Overpower or high/low line compensation Adjustable overpower time-out Adjustable overpower restart timer Fixed switching frequency with frequency jitter to reduce EMI Frequency reduction with fixed minimum peak current at low power operation to maintain high efficiency at low output power levels Slope compensation for CCM operation Low and adjustable OverCurrent Protection (OCP) trip level Adjustable soft start Two protection inputs (e.g. for input UVP and OVP, OTP and output OVP) IC overtemperature protection TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 3. Applications n The devices can be used in all applications that require an efficient and cost-effective power supply solution of up to 75 W. 4. Ordering information Table 1. Ordering information Type number Package Name Description Version TEA1733T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 TEA1733LT SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 5. Block diagram VCCstart VCC 1 VCCstop 12 V 6V Clamp 8 2 OTP Restart 5.4 V DRV Set DutyMax OPsw OPTIMER 1.2 V / 4.5 V S Set Q Stop DutyMax R Restart S Q R Soft Start Soft Start Latch LEB S 4 Vctrl(Ipeak) OCP Stop Latch OVER POWER CORRECTION VINSENSE ANALOG CONTROL Vctrl(Ipeak) Restart BLANK 55 µA OSCILLATOR MODULATION 7 kΩ Freq reduction 107 µA PowerDown 3 OPTIMER 2.5 V OPsw TEMP PROT RESTART CONTROL ISENSE 11 µA Q Driver LatchReset 5V Latch Clamp DRIVER D 400 mV OverPwr 22 V GND Vctrl(Ipeak) 21 V Q R VCCstop OverPwr(1) HighVin LowVin VCCstart PowerDown LowVin ProtLow OTP ProtHigh ProtLow OverPwr(1) LatchReset 7 SLOPE COMPENSATION ProtHigh CTRL 32 µA 0.50 V/0.80 V ProtLow 6 PROTECT 107 µA HighVin 3.52 V LowVin 0.72 V/0.94 V 5 VINSENSE DIGITAL CONTROL 014aaa926 (1) In the TEA1733LT the OverPwr signal switches the IC to the latched-off state. In the TEA1733T the OverPwr signal triggers the restart timer. Fig 1. Block diagram TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 2 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 6. Pinning information 6.1 Pinning VCC 1 GND 2 8 OPTIMER 7 CTRL TEA1733T DRIVER 3 6 PROTECT ISENSE 4 5 VINSENSE 014aaa927 Fig 2. Pin configuration: TEA1733(L) (SOT96-1) 6.2 Pin description Table 2. Pin description Symbol Pin Description VCC 1 supply voltage GND 2 ground DRIVER 3 gate driver output ISENSE 4 current sense input VINSENSE 5 input voltage protection input PROTECT 6 general purpose protection input CTRL 7 control input OPTIMER 8 overpower and restart timer TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 3 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 7. Functional description 7.1 General control The TEA1733(L) contains a controller for a flyback circuit. A typical configuration is shown in Figure 3. VINSENSE PROTECT Θ CTRL OPTIMER 4 5 3 6 TEA1733T 7 2 8 1 ISENSE DRIVER GND VCC 014aaa928 Fig 3. Typical configuration 7.2 Start-up and UnderVoltage LockOut (UVLO) Initially the capacitor on the VCC pin is charged from the high voltage mains via a resistor. As long as VCC is below Vstartup, the IC current consumption is low (typically 10 µA). When VCC reaches Vstartup the IC first waits for the VINSENSE pin to reach the Vstart(VINSENSE) voltage and for the PROTECT pin to reach the Vdet(PROTECT)(L) voltage. When both levels are reached, the IC charges the ISENSE pin to the Vstart(soft) level and then starts switching. In a typical application the supply voltage is taken over by the auxiliary winding of the transformer. If a protection is triggered the controller will stop switching. Depending on which protection is triggered and on the version of the IC (TEA1733T or TEA1733LT) the protection will cause a restart or will latch the converter to an off-state. A restart caused by a protection will charge the OPTIMER pin to 4.5 V (typ.) rapidly. The TEA1733(L) will then enter the Power-down mode until the OPTIMER pin is discharged to 1.2 V (typ.). In Power-down mode, the IC consumes a very low supply current (10 µA typ.) and the VCC pin will be clamped to 22 V (typ.) by an internal clamp circuit. A restart will be made when the voltage on pin OPTIMER drops below 1.2 V (typ.) and the VCC pin voltage is above the VCC start-up voltage (See Figure 4). When a latched protection is triggered, the TEA1733(L) will enter Power-down mode immediately. The VCC pin will be clamped to a voltage just above the latch protection reset voltage (Vrst(latch) + 1 V). TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 4 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC Vstartup Vth(UVLO) VCC soft start soft start ISENSE Vdet(VINSENSE)(H) Vstart(VINSENSE) VINSENSE Vdet(PROTECT)(H) Vdet(PROTECT)(L) PROTECT 4.5 V 1.2 V OPTIMER Output voltage (power down) starting converter charging VCC capacitor normal operation protection restart 014aaa929 Fig 4. Start-up sequence, normal operation and restart sequence When the voltage on pin VCC drops below the UVLO level during normal operation, the controller stops switching and enters Restart mode. In Restart mode the driver output is disabled and the VCC pin voltage is recharged via the resistor to the rectified mains. 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 Input voltage detection (VINSENSE pin) In a typical application the mains input voltage can be detected by the VINSENSE pin. As long as the voltage on VINSENSE has not reached the Vstart(VINSENSE) voltage (typically 0.93 V), switching is inhibited. When during operation the VINSENSE voltage drops below Vdet(L)(VINSENSE) (typically 0.72 V) or exceeds Vdet(H)(VINSENSE) (typically 3.52 V), the converter stops switching and performs a restart. If the pin is left open or disconnected, the pin is pulled up by the internal 20 nA (typ.) current source and subsequently the Vdet(H)(VINSENSE) level is reached. This will then trigger a restart protection. An internal clamp of 5.2 V (typ.) protects this pin from excessive voltages. 7.5 Protection input (PROTECT PIN) The pin PROTECT is a general purpose input pin, which can be used to switch off the converter (latched protection). The converter is stopped as soon as the voltage on this pin is pulled above Vdet(H)(PROTECT) (typically 0.8 V) or below Vdet(L)(PROTECT) (typically 0.5 V). A current of 32 µA (typ.) is flowing out of the chip when the pin voltage is Vdet(L)(PROTECT). A current of 107 µA (typ.) is flowing into the chip when the pin voltage is Vdet(H)(PROTECT). TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 5 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC The PROTECT input can be used e.g. for creating an overvoltage detection and an OTP function. A small capacitor can be connected to the pin if the protections on this pin are not used. An internal clamp of 4.1 V (typ.) protects this pin from excessive voltages. 7.6 Duty cycle control (CTRL pin) The output power of the converter is regulated by the CTRL pin. This pin is connected to an internal voltage source of 5 V via an internal resistor (typical resistance is 7 kΩ). The CTRL pin voltage sets the maximum peak current which is measured via the ISENSE pin. (see Section 7.10) At low output power the switching frequency is also reduced. (see Section 7.12)The maximum duty cycle is limited to 72 % (typ). 7.7 Slope compensation (CTRL pin) For CCM a slope compensation circuit is integrated. The slope compensation guarantees stable operation for duty cycles larger than 50 %. 7.8 Overpower timer (OPTIMER pin) If the OPTIMER pin is connected to a capacitor a temporary overload situation is allowed. If Vctrl(Ipeak) (see Figure 1) set by the CTRL pin is above 400 mV, a current of IIO(OPTIMER) (10 µA typ.) is sourced from the OPTIMER pin. If the voltage on the OPTIMER pin reaches the Vprot(OPTIMER) voltage (2.5 V typ.) the OverPower Protection (OPP) is triggered. (see Figure 5) Output load Output voltage 400 mV VISENSE Vprot(OPTIMER) VOPTIMER high load normal load high load protection 014aaa930 Fig 5. Overpower delay When the Vprot(OPTIMER) voltage is reached a restart will be made. If the overload is removed before the Vprot(OPTIMER) voltage is reached, the converter will continue switching. TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 6 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 7.9 Current mode control (ISENSE pin) Current mode control is used for its good line regulation. The primary current is sensed by the ISENSE pin across an external resistor and compared with an internal control voltage.The internal control voltage is proportional to the CTRL pin voltage. (see Figure 6) 014aaa931 0.6 Vsense(max) (V) 0.4 frequency reduction 0.2 0 0 Fig 6. 1 2 3 VCTRL (V) 4 Peak current control Leading edge blanking is added to prevent false triggering due to the capacitive discharge when switching on the external power switch. (see Figure 7) LEB (tleb) Vsense(max) VISENSE t 014aaa932 Fig 7. Leading edge blanking 7.10 Overpower or high/low line compensation (VINSENSE and ISENSE pins) 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 voltage via the VINSENSE pin and outputs a current depending on this voltage on the ISENSE pin. The DC voltage across the soft start resistor will then limit the maximum peak current on the current sense resistor. At low output power levels the overpower compensation circuit is switched off. See Figure 8. TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 7 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 2 1.7 IISENSE (µA) 0.68 1 2 3 VVINSENSE (V) 4 014aaa933 Fig 8. Overpower compensation 7.11 Soft start-up (ISENSE pin) To prevent audible noise during start-up or restart, a soft start is made. Before the converter (re)starts, the soft start capacitor on the ISENSE pin is charged. When the converter (re)starts switching, the primary peak current increases slowly when the soft start capacitor discharges through the soft start resistor. (see also Figure 4) The time constant of the soft start can be chosen by setting the soft start capacitor. The soft start resistor must also be taken into account, but this value is typically defined by the overpower compensation. (see Section 7.10) 7.12 Low power operation In low power operation the 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 6 and Figure 9) fsw (kHz) switching frequency 1 2 VCTRL (V) 014aaa934 Fig 9. Frequency control 7.13 Driver (pin DRIVER) The driver circuit to the gate of the power MOSFET has a current sourcing capability of typically −250 mA and a current sink capability of typically 750 mA. This permits fast turn-on and turn-off of the power MOSFET for efficient operation. TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 8 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 7.14 OverTemperature Protection (OTP) An accurate internal temperature protection is provided in the circuit. When the junction temperature exceeds the thermal shut-down temperature, the IC stops switching. OTP is a latched protection. It can be reset by removing the voltage on pin VCC. 8. Limiting values Table 3. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit VCC supply voltage continuous −0.4 +30 V t < 100 ms - 35 V VVINSENSE voltage on pin VINSENSE current limited −0.4 +5.5 V VPROTECT voltage on pin PROTECT current limited −0.4 +5 V VCTRL voltage on pin CTRL −0.4 +5 V VIO(OPTIMER) input/output voltage on pin OPTIMER −0.4 +5 V VISENSE voltage on pin ISENSE −0.4 +5 V Voltages current limited Currents II(VINSENSE) input current on pin VINSENSE −1 +1 mA II(PROTECT) input current on pin PROTECT −1 +1 mA ICTRL current on pin CTRL −3 0 mA IISENSE current on pin ISENSE −10 +1 mA IDRIVER current on pin DRIVER δ < 10 % −0.4 +1 A Ptot total power dissipation Tamb < 75 °C - 0.5 W Tstg storage temperature −55 +150 °C Tj junction temperature −40 +150 °C General ESD VESD electrostatic discharge voltage class 1 human body model [1] - 4000 V machine model [2] - 300 V - 750 V charged device model [1] Equivalent to discharging a 100 pF capacitor through a 1.5 kΩ series resistor. [2] Equivalent to discharging a 200 pF capacitor through a 0.75 µH coil and a 10 Ω resistor. TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 9 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 9. Thermal characteristics Table 4. Thermal characteristics Symbol Parameter Conditions Typ Unit Rth(j-a) thermal resistance from junction to ambient in free air; JEDEC test board 150 K/W Rth(j-c) thermal resistance from junction to case in free air; JEDEC test board 79 K/W 10. Characteristics Table 5. Characteristics Tamb = 25 °C; VCC = 20 V; all voltages are measured with respect to ground (pin 6); 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 18.6 20.6 22.6 V Vth(UVLO) undervoltage lockout threshold voltage 11.2 12.2 13.2 V Vclamp(VCC) clamp voltage on pin VCC activated during restart - Vstartup + 1 - V activated during latched protection - Vrst(latch) + 1 - V V Vhys hysteresis voltage Vstartup − Vth(UVLO) 8 9 10 ICC(startup) start-up supply current VCC < Vstartup 5 10 15 µA ICC(oper) operating supply current no load on pin DRIVER 0.4 0.5 0.6 mA Vrst(latch) latched reset voltage 4 5 6 V 0.89 0.94 0.99 V Input voltage sensing (pin VINSENSE) Vstart(VINSENSE) start voltage on pin VINSENSE detection level Vdet(L)(VINSENSE) LOW-level detection voltage on pin VINSENSE 0.68 0.72 0.76 V Vdet(H)(VINSENSE) HIGH-level detection voltage on pin VINSENSE 3.39 3.52 3.65 V IO(VINSENSE) output current on pin VINSENSE - −20 - nA Vclamp(VINSENSE) clamp voltage on pin VINSENSE - 5.2 - V II(VINSENSE) = 50 µA Protection input (pin PROTECT) Vdet(L)(PROTECT) LOW-level detection voltage on pin PROTECT 0.47 0.50 0.53 V Vdet(H)(PROTECT) HIGH-level detection voltage on pin PROTECT 0.75 0.8 0.85 V TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 10 of 17 TEA1733T; TEA1733LT 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 6); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit IO(PROTECT) output current on pin PROTECT VVINSENSE = Vlow(PROTECT) −34 −32 −30 µA 87 107 127 µA Vclamp(PROTECT) clamp voltage on pin PROTECT II(PROTECT) = 200 µA 3.5 4.1 4.7 V 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 kΩ VCTRL = 1.4 V −0.7 −0.5 −0.3 mA VCTRL = 3.7 V −0.28 −0.2 −0.12 mA VVINSENSE = Vhigh(PROTECT) [1] Peak current control (pin CTRL) VCTRL voltage on pin CTRL Rint(CTRL) internal resistance on pin CTRL IO(CTRL) output current on pin CTRL Pulse width modulator fosc oscillator frequency 62 66.5 71 kHz fmod modulation frequency 210 280 350 Hz ∆fmod modulation frequency variation ±3 ±4 ±5 kHz δmax maximum duty cycle 68.5 72 79 % Vstart(red)f frequency reduction start voltage pin CTRL 1.5 1.8 2.1 V Vδ(zero) zero duty cycle voltage pin CTRL 1.25 1.55 1.85 V 2.4 2.5 2.6 V Overpower protection (pin OPTIMER) Vprot(OPTIMER) protection voltage on pin OPTIMER Iprot(OPTIMER) protection current on pin no overpower situation OPTIMER overpower situation 100 150 200 µA −12.2 −10.7 −9.2 µA Restart timer (pin OPTIMER) Vrestart(OPTIMER) restart voltage on pin OPTIMER low level 0.8 1.2 1.6 V high level 4.1 4.5 4.9 V Irestart(OPTIMER) restart current on pin OPTIMER charging OPTIMER capacitor −127 −107 −87 µA discharging OPTIMER capacitor −0.1 0 0.1 µA maximum sense voltage ∆V/∆t = 50 mV/µs; VVINSENSE = 0.78 V 0.48 0.51 0.54 V ∆V/∆t = 200 mV/µs; VVINSENSE = 0.78 V 0.50 0.53 0.56 V Current sense (pin ISENSE) Vsense(max) Vth(sense)opp overpower protection sense threshold voltage 370 400 430 mV ∆VISENSE/∆t slope compensation voltage on pin ISENSE 17 25 33 mV/µs TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 11 of 17 TEA1733T; TEA1733LT 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 6); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter tleb leading edge blanking time Conditions Min Typ Max Unit 250 300 350 ns - 0.28 - µA - 1.7 - µA −63 −55 −47 µA - Vsense(max) - V 12 - - kΩ Overpower compensation (pin VINSENSE and pin ISENSE) Iopc(ISENSE) VVINSENSE = 1 V; overpower compensation current on Vsense(max) > 400 mV pin ISENSE VVINSENSE=3 V; Vsense(max) > 400 mV Soft start (pin ISENSE) Istart(soft) soft start current Vstart(soft) soft start voltage Rstart(soft) soft start resistance VCTRL = 4 V; enable voltage Driver (pin DRIVER) Isource(DRIVER) source current on pin DRIVER VDRIVER = 2 V - −0.3 -0.25 A Isink(DRIVER) sink current on pin DRIVER VDRIVER = 2 V 0.25 0.3 - A VDRIVER = 10 V 0.6 0.75 - A 9 10.5 12 V 130 140 150 °C VO(DRIVER)max maximum output voltage on pin DRIVER Temperature protection Tpl(IC) [1] IC protection level temperature The clamp voltage on the PROTECT pin is lowered when the IC is in power-down. (latched or restart protection) TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 12 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 11. Application information A power supply with the TEA1733(L) is a flyback converter operating in Continuous conduction mode. See Figure 10. Capacitor C5 buffers the IC supply voltage, which is powered via R3 for start-up and via the auxiliary winding during normal operation. Sense resistor R9 converts the current through the MOSFET S1 into a voltage at pin 4 (ISENSE). The values of R9 defines the maximum primary peak current in MOSFETs S1. In the example given, the PROTECT pin (pin 6) is used for OVP and OTP. The OVP level is set by Z1 to VCC = 25.8 V. The OTP level is set by Negative Temperature Coefficient (NTC) resistor R4. The VINSENSE pin (pin 5) is used for mains voltage detection and R1 and R2 set the start voltage to about 80 V (AC). The overpower protection time, defined by C4, is set to 60 ms. The restart time, defined by C4 and R8, is set to 0.5 s. R6 and C6 define the soft start time. R5 is added to prevent the soft start capacitor from being charged during normal operation due to negative voltage spikes across the current sense resistor R9. C3 is added to reduce the noise on the CTRL pin. R7 reduces the peak current to C5. C1 68 µF R1 10 MΩ C2 100 nF R2 82 kΩ R3 1 MΩ R5 5 4 6 3 TEA1733T R4 Θ 200 kΩ Z1 25 V 470 Ω C3 10 nF C4 220 nF 7 2 8 1 R8 2.2 MΩ C5 4.7 µF S1 R10 10 Ω R6 22 kΩ C6 220 nF R9 0.25 Ω R7 10 Ω 014aaa935 Fig 10. Typical application TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 13 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 12. Package outline SO8: plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 D E A X c y HE v M A Z 5 8 Q A2 A (A 3) A1 pin 1 index θ Lp 1 L 4 e detail X w M bp 0 2.5 5 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 5.0 4.8 4.0 3.8 1.27 6.2 5.8 1.05 1.0 0.4 0.7 0.6 0.25 0.25 0.1 0.7 0.3 inches 0.069 0.010 0.057 0.004 0.049 0.01 0.019 0.0100 0.014 0.0075 0.20 0.19 0.16 0.15 0.05 0.01 0.01 0.004 0.028 0.012 0.244 0.039 0.028 0.041 0.228 0.016 0.024 θ 8o o 0 Notes 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 2. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT96-1 076E03 MS-012 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-18 Fig 11. Package outline SOT109-1 (SO16) TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 14 of 17 TEA1733T; TEA1733LT NXP Semiconductors GreenChip SMPS control IC 13. Revision history Table 6. Revision history Document ID Release date Data sheet status Change notice Supersedes TEA1733T_TEA1733LT_1 20091026 Objective data sheet - - TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 15 of 17 TEA1733T; TEA1733LT 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. 14.3 Disclaimers General — 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. 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. Suitability for use — NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support 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 accepts 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. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of 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, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. 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. 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 national authorities. 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 B.V. 15. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] TEA1733T_TEA1733LT_1 Objective data sheet © NXP B.V. 2009. All rights reserved. Rev. 01 — 26 October 2009 16 of 17 NXP Semiconductors TEA1733T; TEA1733LT GreenChip SMPS control IC 16. Contents 1 2 2.1 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 Functional description . . . . . . . . . . . . . . . . . . . 4 General control . . . . . . . . . . . . . . . . . . . . . . . . . 4 Start-up and UnderVoltage LockOut (UVLO) . . 4 Supply management. . . . . . . . . . . . . . . . . . . . . 5 Input voltage detection (VINSENSE pin) . . . . . 5 Protection input (PROTECT PIN) . . . . . . . . . . . 5 Duty cycle control (CTRL pin). . . . . . . . . . . . . . 6 Slope compensation (CTRL pin). . . . . . . . . . . . 6 Overpower timer (OPTIMER pin) . . . . . . . . . . . 6 Current mode control (ISENSE pin) . . . . . . . . . 7 Overpower or high/low line compensation (VINSENSE and ISENSE pins) . . . . . . . . . . . . 7 Soft start-up (ISENSE pin) . . . . . . . . . . . . . . . . 8 Low power operation. . . . . . . . . . . . . . . . . . . . . 8 Driver (pin DRIVER) . . . . . . . . . . . . . . . . . . . . . 8 OverTemperature Protection (OTP) . . . . . . . . . 9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 9 Thermal characteristics. . . . . . . . . . . . . . . . . . 10 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 10 Application information. . . . . . . . . . . . . . . . . . 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 15 Legal information. . . . . . . . . . . . . . . . . . . . . . . 16 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 16 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Contact information. . . . . . . . . . . . . . . . . . . . . 16 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2009. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 26 October 2009 Document identifier: TEA1733T_TEA1733LT_1