●STR9000 Series STR9000 Series 5-Terminal, Low Dropout Voltage Dropper Type ■Features • • • • • • 5-terminal regulator with two screw mount package Output current: 4.0A Low dropout voltage :VDIF≤1V (at IO=4A) Fine adjustment of output voltage Output ON/OFF control Built-in foldback overcurrent protection circuits ■Applications • For stabilization of the secondary stage of switching power supplies • Electronic equipment ■Absolute Maximum Ratings Parameter (Ta=25°C) Ratings Symbol STR9005 Unit STR9012/9015 DC Input Voltage VIN DC Output Current IO 4.0 V PD1 75(TC=25°C) W Power Dissipation 25 PD2 30 V 3.2(Without heatsink, stand-alone operation) W Tj –30 to +125 °C Ambient Operating Temperature Top –20 to +100 °C Storage Temperature Tstg –30 to +125 °C Rth(j-c) 1.25 °C/W Junction Temperature Thermal Resistance (junction to case) ■Electrical Characteristics (Ta=25°C) Ratings Parameter Symbol STR9005 min. Input Voltage Output Voltage VIN 6 VO 4.9 Conditions typ. max. min. 15 13 5.1 11.8 5.0 VIN=8V, IO=2.0A VDIF Dropout Voltage STR9012 typ. 12.0 0.5 Conditions Load Regulation Temperature Coefficient of Output Voltage Ripple Rejection Starting Current 10 14.8 15.0 15.2 25 0.5 0.5 1.0 1.0 30 30 80 50 100 VIN=16 to 25V, IO=2.0A 40 80 100 100 200 200 VIN=20V, IO=0 to 3.0A ∆VO/∆Ta ±0.5 ±1.5 ±1.5 RREJ 54 54 54 VO(ON) 4.1 4.1 VIN=8V mV mV/°C dB 4.1 0.6 VIN=20V 0.6 2.0 0.6 2.0 0.5 VIN=8V, IO=0A A VIN=16V 2.0 VO Conditions mV f=100 to 120HZ Conditions VO(OFF) V V VIN=16V, IO=0 to 3.0A IS1 V VIN=20V, IO=2.0A VIN=8V, IO=0 to 3.0A (Voltage between terminal No.3 and 5) VIN=15V, IO=0A V V 0.5 0.5 VIN=20V, IO=0A *Output is turned on when voltage between terminal No.3 and 5 is less than 0.6V, and turned off if more than 2.0V. 66 max. VIN=13 to 25V, IO=2.0A ∆VOLOAD Output ON/OFF Control Voltage Voltage with Output Off 12.2 typ. VIN=6 to 15V, IO=2.0A Conditions Overcurrent Protection 16 IO=4.0A ∆VOLINE Conditions min. 25 Unit IO=2.0A Conditions Conditions max. VIN=16V, IO=2.0A 1.0 Line Regulation STR9015 V ●STR9000 Series ■Outline Drawing (unit:mm) ±0.3 36.0 6.0max. ±0.2 ±0.2 24.4 φ 3.2 ±0.3 Plastic Mold Package Type Flammability: UL94V-0 Weight: Approx. 14.5g 21.2 12.0 Lot Number 4.7max. Part Number 2.0 +0.2 3.0 20.0min. ±0.3 30° ±0.1 2.0 +0.2 1.0 –0.1 q w 3.5 e r Terminal Connections 0.6 –0.1 q w e r t t 5.45×4 5.45 Output (backside of case) Output Fine Adjustment Output ON/OFF Control Input Ground ■Block Diagram Tr1 4 1 R4 R2 R1 M VREF Protection Reg. Drive Amp. 2 R6 Tr2 3 R7 R5 R8 R3 5 67 ●STR9000 Series ■Standard External Circuit D1 VO VIN 4 1 DC input DC output STR9000 3 2 5 + C2 C1 ■Ta-PD Characteristics Power Dissipation PD (W) 24 150×150×2(3.3°C/W) 20 Without Mica With Slicon Grease Heatsink: Aluminum Unit: mm 16 100×100×2(5.2°C/W) 12 75×75×2(7.6°C/W) 8 4 0 –20 Without heatsink 0 25 50 75 Ambient Temperature Ta (°C) 68 C1: Oscillation prevention capacitor (approx. 0.33µF) Connection to terminal No.4 must be made as short as possible. C2: Output capacitor (47 to 100µF) Connection to terminal No.1 must be made as short as possible. D1: Protection diode (RM1Z) Required for protection against reverse biasing of input and output. 100 Note 1: Prevention of oscillation at low temperatures At low temperatures, oscillation may occur unless an output capacitor with good tanδ is used. Be sure to connect a tantalum capacitor (approx. 10µF) in parallel with output capacitor C2. Note 2: An isolation type diode is provided from input to ground and also from output to ground. These may be destroyed if the device is reverse biased. In this case, use a diode with low VF to protect them. ●STR9000 Series q Typical Characteristics of Variable Output Voltage External Variable Output Voltage Circuit STR9005 Output Voltage VO (V) <Standard External Circuit> Variable Output Voltage Range 5.0 4.9 4.7 20K 1 5 50K 100K 500K 1M 5M 10M REX for Vo down 2 STR9012 REX for Vo up (Ta=25°C) 14 + GND GND Select either one of the external resistor. 2. Fine adjustment of output voltage The output voltage may be finely adjusted by using terminals No.1, No.2 and No. 5 as shown in the following connections. 13 Variable Output Voltage Range 12 11 10 9 20K 50K 100K 500K 1M 5M 10M STR9015 VO 4 5 R1 2 VR Output Voltage VO (V) + (Ta=25°C) 17 1 STR9000 3 50M External Resistor REX (Ω) <Standard External Circuit> VIN 50M External Resistor REX (Ω) STR9000 + 5.1 Output Voltage VO (V) 4 3 5.2 4.8 VO VIN (Ta=25°C) 5.3 1. Variable output voltage with a single external resistor The output voltage of the STR9000 series may be decreased by inserting a resistor between terminals No.1 (output terminal) and No.2 (output fine adjustment terminals). Alternatively, the output voltage may be increased by inserting a resistor between terminals No.2 and No.5 (ground terminal). + R2 GND GND Note: The fine adjustment range of output voltage for the STR9000 series is ±0.5V max for STR9012 and +1.0V/-2.0V max for STR9015. Adjustment exceeding these values may cause start-up errors. 16 15 Variable Output Voltage Range 14 13 12 20K 50K 100K 500K 1M 5M 10M 50M External Resistor REX (Ω) : Insertion of resistor between terminals No. 2 and No. 5 : Insertion of resistor between terminals No. 2 and No. 1 w Typical Characteristics of Fine Output Voltage Adjustment STR9005 5.4 STR9012 (Ta=25°C) R1=150 kΩ R2=150 kΩ STR9015 (Ta=25°C) 14 (Ta=25°C) 20 R1=100 kΩ R2= 30 kΩ 18 R1=100 kΩ R2= 20 kΩ 5.0 4.8 Output Voltage VO (V) 5.2 Output Voltage VO (V) Output Voltage VO (V) 13 12 16 14 11 12 4.6 0 100 200 300 VR (kΩ) 400 500 10 0 100 200 300 VR (kΩ) 400 500 10 0 100 200 300 400 500 VR (kΩ) 69 ●STR9000 Series ■Typical Characteristics (Ta=25°C) IO vs. VDIF Characteristics Temperature Coefficient of Output Voltage(STR9005) 1.0 Circuit Current(STR9005) 70 5.04 0.8 VO=5V 60 0.6 0.4 0.2 Ground Current lG (mA) 5.02 Output Voltage VO (V) Dropout Voltage VDIF (V) VIN=8V lO=10mA 5.00 4.98 4.96 50 40 lO=4A 30 3A 20 2A 1A 10 0A 0 0 1.0 3.0 3.0 4.0 4.94 –20 0 20 40 60 80 0 100 120 140 5 Rise Characteristics(STR9005) Rise Characteristics(STR9012) 15 17.5 Rise Characteristics(STR9015) 15 7 10 Input Voltage VIN (V) Ambient Temperature Ta (°C) Output Current lO (A) 17.5 15 5 4 lO=0A 3 1A 2A 2 3A Output Voltage Vo (V) Output Voltage VO (V) 6 Output Voltage VO (V) 0 lO=0A 10 1A 2A 3A 4A 5 lO=0A 1A 2A 10 3A 4A 5 4A 1 0 0 5 10 15 0 20 0 5 10 15 0 20 22.5 Overcurrent Protection Characteristics(STR9005) 5 10 15 20 22.5 Input Voltage VIN (V) Overcurrent Protection Characteristics(STR9012) 7 Overcurrent Protection Characteristics(STR9015) 17.5 15 15 Output Voltage VO (V) 7 25V 6 V 20V 5 =16 VIN 25V 20V 10 16V 2 V =13 3 VIN =6V 8V VIN 4 15V 5 Output Voltage VO (V) 6 Output Voltage VO (V) 0 Input Voltage VIN (V) Input Voltage VIN (V) 10 5 1 0 0 1 2 3 4 5 6 Output Current lO (A) 70 7 8 0 0 1 2 3 4 5 6 Output Current lO (A) 7 8 9 0 0 1 2 3 4 5 Output Current lO (A) 8 9