NCP5426 LDO Regulator/Vibration Motor Driver The NCP5426 series of fixed output, 150 mA low dropout linear regulators are designed to be an economical solution for a variety of applications. Each device contains a voltage reference unit, an error amplifier, a PNP power transistor, resistors for setting output voltage, an under voltage lockout on the input, an enable pin, and current limit and temperature limit protection circuits. The NCP5426 is designed for driving a vibration motor using ceramic capacitors on the output. The device is housed in the micro−miniature TSOP−5 surface mount package. The NCP5426 is available in output voltages of 1.2 V to 2.0 V in 0.1 V increments. http://onsemi.com 5 1 TSOP−5 SN SUFFIX CASE 483 Features • Wide Operating Voltage Range to 12 V Internally Set Output Voltages Enable Pin for On/Off Control UVLO on the Input Voltage with Hysteresis Current and Thermal Protection Compatible with Ceramic, Tantalum or Aluminum Electrolytic Capacitors Pb−Free Package is Available PIN CONNECTIONS AND MARKING DIAGRAM Enable 1 GND 2 N/C 3 xxxAYWG G • • • • • • 5 Vin 4 Vout (Top View) Typical Applications • Vibration Motor Driver Vin Vout 4 5 xxx = Specific Device Code A = Assembly Location Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) UVLO Thermal Shutdown ORDERING INFORMATION Driver w/ Current Limit See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet. Enable ON 1 OFF GND 2 This device contains 47 active transistors. Figure 1. Internal Schematic © Semiconductor Components Industries, LLC, 2006 February, 2006 − Rev. 5 1 Publication Order Number: NCP5426/D NCP5426 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ DETAILED PIN DESCRIPTION Pin Name Description 1 Enable The enable pin allows the user to control the output. A low signal disables the output and places the device into a low current standby mode. 2 GND Ground pin. 3 N/C This pin is not connected to the device. 4 Vout Regulated output voltage. 5 Vin Input voltage. MAXIMUM RATINGS ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Rating Symbol Max Voltage, All Pins Value Unit VMAX 12 V Power Dissipation to Air PA 150 mW Power Dissipation, Board Mounted P 600 mW Operating and Storage Temperature TA −40 to 85 °C Thermal Resistance TJA 300 °C/W Junction Temperature TJ 125 °C Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. ELECTRICAL CHARACTERISTICS (TA = 25°C, for min/max values TA is the operating junction temperature that applies, VCC = 3.5 V, unless otherwise noted) Characteristic Symbol Min Typ Max Unit VCC − − 12 V Operating Voltage Operating Voltage Turn On, Iout = 30 mA, Increasing VCC VCCON − 2.6 2.8 V Operating Voltage Turn Off, Iout = 30 mA, Decreasing VCC VCCOFF 2.0 2.1 2.2 V Operating Voltage Hysteresis, Iout = 30 mA VCC(hyst) 400 500 600 mV ICC − 120 240 mA ICC(uvlo) − 80 160 mA ICC(off) − − 0.1 mA Maximum Output Current, Vout = 0.95 *Vnom Iout(max) 150 − − mA Overcurrent Protection, Vout = 0 V Iout(limit) − 270 − mA Load Regulation, Vin = 3.5 V, Iout 1.0 to 100 mA Regload − 30 60 mV Line Regulation, Iout = 30 mA, Vin 3.0 to 5.0 V Regline − 10 20 mV Ripple Rejection, Vin 3.5 V, f 120 Hz, Vpp 1.0 V, Iout 30 mA RR 55 70 − dB Temperature Shutdown Tstd − 150 − °C DVCC H to L/DT − 200 − ppm/°C DVo/DT − 100 − ppm/°C Enable Pin High Threshold Veh 1.6 − − V Enable Pin Low Threshold Vel − − 0.4 V Enable Pin Current, Ve = 1.6 V le − 5.0 10 mA Vout 1.261 1.3 1.339 V Operating Current No Load Operating Current, VCC = 1.8 V, Enable High Operating Current, Enable Low VCC Low Detector Temperature Coefficient, Iout = 30 mA, T = −40 to 85°C Vout Temperature Coefficient −1.3 V Output Voltage, Iout = 30 mA http://onsemi.com 2 NCP5426 20 1.4 Vin = 3.5 V Ve = 2.5 V Vout = 1.3 V Cout = 1.0 mF 12 8 1.2 OUTPUT VOLTAGE (V) LOAD REGULATION (mV) 16 4 0 −4 −8 −12 1.0 0.8 0.6 0.4 0.2 −16 −20 0 25 50 75 100 0 150 0 50 100 150 200 250 OUTPUT CURRENT (mA) Figure 2. Load Regulation NCP5426 Figure 3. Current Limit NCP5426 136 134 300 2.7 Vin = 3.5 V Iout = 0 mA Vout(nom) = 1.3 V Ve = Vin 2.6 Vth ON 2.5 132 UVLO (V) QUIESCENT CURRENT (mA) 125 OUTPUT CURRENT (mA) 140 138 130 128 126 124 2.4 2.3 2.2 122 2.1 120 Vth OFF −25 0 25 75 50 100 125 2.0 −50 10 125 60 TEMPERATURE (°C) TEMPERATURE (°C) Figure 4. Quiescent Current vs. Temperature Figure 5. Undervoltage Lockout vs. Temperature 90 Vin = 3.5 V Vout = 1.3 V Iout = 1.0 mA Cout = 1.0 mF Ve = 2.5 V 80 70 60 50 50 OUTPUT VOLTAGE DEVIATION (mV) 118 −50 0 Iout = 1 mA to 150 mA 40 Iout, OUTPUT CURRENT (mA) RIPPLE REJECTION (dB) Vin = 3.5 V Ve = 2.5 V Vout(nom) = 1.3 V 30 20 10 0 100 1k 10 k 100 k 1M 150 Vin = 3.5 V Vout = 1.3 V Cin = 4.7 mF Cout = 4.7 mF 0 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (Hz) TIME (ms) Figure 6. Ripple Rejection vs. Frequency Figure 7. Load Transient Response http://onsemi.com 3 NCP5426 7.00 ENABLE CURRENT (mA) ENABLE CURRENT (mA) 4.00 3.75 3.50 3.25 3.00 −50 Vin = 3.5 V Ve = 1.6 V Iout = 30 mA −25 0 50 75 100 6.75 6.50 6.25 Vin = 3.5 V Ve = 2.5 V Iout = 30 mA 6.00 −50 125 0 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) Figure 8. Enable Current vs. Temperature Figure 9. Enable Current vs. Temperature 0.90 Vin = 3.5 V Vout = 1.3 V 50 ms/div 0.80 LINE REGULATION (mV) −25 0.70 1.3 V Vout 0.60 0.50 0 0.40 100 mA 0.30 Iout 0.20 Vout = 1.3 V Iout = 30 mA Cout = 1 mF 0.10 0 0 3 6 9 12 Cin = Cout = 4.7 mF Vin (V) Figure 10. Line Regulation Figure 11. Resistive Transient Response for Switching the Enable Pin, Rout − 13 Ohms Vin = 3.5 V Vout = 1.3 V 100 ms/div 1.3 V Vout 0 50 mA Iout 0 mA Cin = Cout = 4.7 mF Figure 12. Transient Response for Switching the Enable Pin, Vibration Motor Load http://onsemi.com 4 NCP5426 DEFINITIONS Load Regulation Line Regulation The change in output voltage for a change in output load current at a constant temperature and input voltage. The change in output voltage for a change in input voltage. The measurement is made under conditions of low dissipation or by using pulse technique such that the average chip temperature is not significantly affected. Dropout Voltage The input/output differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 2.0% below its nominal. The junction temperature, load current, and minimum input supply requirements affect the dropout level. Line Transient Response Typical over and undershoot response when input voltage is excited with a given slope. Thermal Protection This is the integrated value of the output noise over a specified frequency range. Input voltage and output load current are kept constant during the measurement. Results are expressed in mVRMS or nV √Hz. Internal thermal shutdown circuitry is provided to protect the integrated circuit in the event that the maximum junction temperature is exceeded. When activated at typically 150°C, the regulator turns off. This feature is provided to prevent failures from accidental overheating. Quiescent Current Maximum Package Power Dissipation The current which flows through the ground pin when the regulator operates without a load on its output: internal IC operation, bias, etc. When the LDO becomes loaded, this term is called the Ground current. It is actually the difference between the input current (measured through the LDO input pin) and the output current. The power dissipation level at which the junction temperature reaches its maximum operating value, i.e. 125°C. Output Noise Voltage http://onsemi.com 5 NCP5426 APPLICATIONS INFORMATION The maximum dissipation the package can handle is given by: The following description will assist the system designer to correctly use the NCP5426 in an application. The NCP5426 is designed specifically for use with inductive loads, typically Vibration Motors. The LDO is capable of using ceramic and tantalum capacitors. Please refer to Figure 13 for a typical system schematic. T *TA PD + J(max) RqJA TJ is not recommended to exceed 125°C. The NCP5426 can dissipate up to 400 mW @ 25°C. The power dissipated by the NCP5426 can be calculated from the following equation: Input Decoupling A capacitor, C1, is necessary on the input for normal operation. A ceramic or tantalum capacitor with a minimum value of 1.0 mF is required. Higher values of capacitance and lower ESR will improve the overall line and load transient response. Ptot + [Vin * IGND (Iout)] ) [Vin * Vout] * Iout or P ) Vout * Iout VinMAX + tot IGND ) Iout Output Decoupling If a 150 mA output current is needed then the ground current is extracted from the data sheet curves: 200 mA @ 150 mA. For an NCP5426SN18T1 (1.8 V), the maximum input voltage will then be 4.4 V, good for a 1 Cell Li−ion battery. A capacitor, C2, is required for the NCP5426 to operate normally. A ceramic or tantalum capacitor will suffice. The selection of the output capacitor is dependant upon several factors: output current, power up and down delays, inductive kickback during power up and down. It is recommended the output capacitor be as close to the output pin and ground pin for the best system response. Hints Please be sure the Vin and GND lines are sufficiently wide. When the impedance of these lines is high, there is a chance to pick up noise or cause the regulator to malfunction. Set external components, especially the output capacitor, as close as possible to the circuit, and make leads as short as possible. Enable Pin The enable pin will turn on or off the regulator. The enable pin is active high. The internal input resistance of the enable pin is high which will keep the current very low when the pin is pulled high. A low threshold voltage permits the NCP5426 to operate directly from microprocessors or controllers. ON OFF Thermal Enable As power across the NCP5426 increases, it might become necessary to provide some thermal relief. The maximum power dissipation supported by the device is dependent upon board design and layout. Mounting pad configuration on the PCB, the board material and the ambient temperature effect the rate of junction temperature rise for the part. This is stating that when the NCP5426 has good thermal conductivity through the PCB, the junction temperature will be relatively low with high power dissipation applications. VCC Vin GND N/C Vibration Motor C1 Vout C2 Figure 13. Typical Applications Circuit for Driving a Vibration Motor VCCON VCCOFF Vout Resistive Load Vout Motor Load Figure 14. Timing Diagram http://onsemi.com 6 VCCHYST VCC NCP5426 ORDERING INFORMATION Device Nominal Output Voltage* Marking Package NCP5426SN13T1 TSOP−5 NCP5426SN13T1G NCP5426SN13T2 Shipping† TSOP−5 (Pb−Free) 1.3 LDZ TSOP−5 NCP5426SN13T2G 3000 / Tape & Reel TSOP−5 (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *Contact your ON Semiconductor sales representative for other Output Voltage options. http://onsemi.com 7 NCP5426 PACKAGE DIMENSIONS THIN SOT−23−5/TSOP−5/SC59−5 SN SUFFIX CASE 483−02 ISSUE E NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. 4. A AND B DIMENSIONS DO NOT INCLUDE MOLD FLASH, PROTRUSIONS, OR GATE BURRS. D S 5 4 1 2 3 B L G DIM A B C D G H J K L M S A J C 0.05 (0.002) H M K MILLIMETERS MIN MAX 2.90 3.10 1.30 1.70 0.90 1.10 0.25 0.50 0.85 1.05 0.013 0.100 0.10 0.26 0.20 0.60 1.25 1.55 0_ 10 _ 2.50 3.00 INCHES MIN MAX 0.1142 0.1220 0.0512 0.0669 0.0354 0.0433 0.0098 0.0197 0.0335 0.0413 0.0005 0.0040 0.0040 0.0102 0.0079 0.0236 0.0493 0.0610 0_ 10 _ 0.0985 0.1181 SOLDERING FOOTPRINT* 0.95 0.037 1.9 0.074 2.4 0.094 1.0 0.039 0.7 0.028 SCALE 10:1 mm Ǔ ǒinches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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