Dropper Type Regulator with Output On/Off Control SI-3001S External Dimensions (unit: mm) 3.2 ± 0.2 4.2 ± 0.2 2.8 ± 0.2 a (2.0) 0.95± 0.15 (Ta = 25ºC) Ratings Unit DC Input Voltage VIN 35 V Output Control Terminal Voltage VC VIN V Output Current IO 1 1.0 * A PD1 18 W With infinite heatsink PD2 1.5 W Stand-alone without heatsink +0.2 Conditions 0.85 – 0.1 (8.0) Symbol (4.6) Absolute Maximum Ratings 5.0 ± 0.6 2.6 ± 0.1 b Parameter (17.9) 16.9± 0.3 4.0± 0.2 0.5 10.0± 0.2 7.9± 0.2 Features ● Output current of 1.0A ● 5-terminal type <output on/off control, variable output voltage (rise only)> ● Voltage accuracy of ±2% ● Low dropout voltage 1V at IO 1.0A, 0.5V at IO 0.4A ● Built-in overcurrent, overvoltage and thermal protection circuits ● Withstands external electromagnetic noises ● TO-220 equivalent full-mold package +0.2 –0.1 0.45 P1.7± 0.7• 4=6.8± 0.7 3.9 ± 0.7 Power Dissipation 1 Junction Temperature Tj – 40 to +125 ºC Operating Temperature TOP – 40 to +100 ºC Storage Temperature Tstg – 40 to +125 ºC Junction to Case Thermal Resistance j-c 5.5 ºC/W Junction to Ambient-Air Thermal Resistance j-a 66.7 ºC/W (4.3) 8.2 ± 0.7 2 3 4 1. GND 2. VC (on/off) 3. Vo 4. Vosense 5. VIN 5 a: Type No. b: Lot No. (Forming No. 1101) Stand-alone without heatsink Equivalent Circuit Diagram Tr1 5 3 VO VIN R1 Electrical Characteristics Symbol VIN Input Voltage VO Output Voltage Dropout Voltage R3 min typ a 6 *2 4.90 max 30 *1 5.00 Unit Conditions e d V 2 VIN =12 to 16V, IO = 0.4A 5.10 V 0.5 V IO 0.4A IO 1.0A 1.0 V Line Regulation ∆VO LINE 30 mV IO =0.4A, VIN =6 to 16V Load Regulation ∆VO LOAD 100 mV IO =0 to 0.4A Output Voltage Temperature Coefficient ∆VO /∆T ±0.5 mV/ºC R4 g c Vc (on/off) R2 dB f =100 to 120Hz mA IO = 0A RREJ 54 Iq 3 Overcurrent Protection Starting Current I S1 3 1.2 * Output ON VC, IH 2.0 * Output OFF VC, IL 0.8 V Output ON I C, IH 20 µA VC = 2.7V Output OFF I C, IL – 0.3 mA VC = 0.4V 10 1 a : Pre-regulator GND b : Output ON/OFF control c : Thermal protection d : Over-input and overcurrent protection e : Drive circuit f : Error amplifier g : Reference voltage IO =5mA, Ta = –10 to +100ºC Quiescent Circuit Current Vc Terminal f b VDIF Ripple Rejection Standard Circuit Diagram D1 A 4 V 5 Control Voltage Control Current VIN 3 SI-3001S OPEN 2 DC input + Notes: *1. Since PD (max) = ( VIN – VO) • IO = 18( W ), VIN (max) and IO (max) may be limited depending on operating conditions. Refer to the Ta -PD curve to compute the corresponding values. *2. Refer to the dropout voltage. *3. IS1 rating shall be the point at which the output voltage VO (VIN = 14V, Io = 0.4A) drops to –5%. *4. The output control terminal Vc is pulled up inside the IC. Each input level can be directly driven with LS-TTL ICs. Thus, LS-TTL direct driving is also possible. 6 4 VO sense ( Ta = 25ºC, VIN =14V unless otherwise specified) Ratings Parameter MIC C1 C2 4 1 + CO DC output VO Co : Output capacitor (47 to 100µF, 50V) C1, C2 : Anti-oscillation capacitors (C1: approx. 47µF, C2: approx. 0.33µF). These are required for inductive input lines or long wiring. Tantalum capacitors are recommended for C1 and Co, especially at low temperatures. Protection diode. Required as protection against reverse D1 : biasing between input and output. (Recommended diode: Sanken EU2Z.) ■ Io vs VDIF Characteristicsc ■ Line Regulation 0.5 ■ Load Regulation 5.1 5.1 Output voltage VO (V) Dropout voltage VDIF (V) 0.3 0.2 0.1 0 0 0.5 5.0 4.9 0 1.0 Output voltage VO (V) IO = 0 (A) 0.4 (A) 1.0 (A) 0.4 0 5 10 15 20 25 V IN = 30 ( V) 12 to 16 ( V) 5.5 ( V) 5.0 4.9 0 30 0 ■ Output Voltage Temperature Characteristics ■ Circuit Current ■ Rise Characteristics 5.1 1.0 0.5 Output current IO (A) Input voltage VIN (V) Output current IO (A) 15 7 Io = 0 (A) 16(V) VIN = 30(V) 5.0 14(V) 5.5(V) VIN — IOUT condition 5.5 (V) / 1.0 (A) 12 (V) / 0.4 (A) 14 (V) / 0.4 (A) 16 (V) / 0.4 (A) 30 (V) / 0 (A) 4.9 0 --50 0 50 100 Load resistance 5 Ground current lg (mA) 12(V) Output voltage VO (V) Output voltage VO (V) 6 4 3 12 (Ω) 2 5 (Ω) 1 0 150 0 2 4 6 8 10 5 0 10 4 6 8 10 Input voltage VIN (V) ■ Overcurrent Protection Characteristics ■ ON/OFF Control Characteristics ■ Thermal Protection Characteristics 6 6 5 5 5 4 4 6 2 0 Input voltage VIN (V) Ambient temperature Ta (ºC) Io = 0 (A) VIN = 6 (V) I o = 0 (A) VIN = 14 (V) 3 2 1 ON OFF 3 5.5 (V) 20 (V) 2 14 (V) 1 0 0 0 1 2 3 4 0 5 0.5 Output ON/OFF control voltage VC (V) 1.0 1.5 2.0 2.5 3.0 ■ Ta —PD Characteristics 20 6 Use G746 silicone grease (Shin-Etsu Chemical) and aluminum heatsink. With infinite heatsink Power Dissipation PD (W) 5 4 3 2 1 4 3 2 1 0 0 125 130 135 140 145 150 155 Ambient temperature Ta (ºC) Output current IO (A) ■ Overvoltage Protection Characteristics Output voltage VO (V) Output voltage VO (V) Output voltage VO (V) Output voltage VO (V) 10 (V) 30 (V) Note on Thermal Protection Characteristics: The thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. Its operation, including reliability, is not guaranteed for short-circuiting over an extended period of time. 15 200•200•2mm (2.3ºC/W) 10 100•100•2mm (5.2ºC/W) 75•75•2mm (7.6ºC/W) 5 Without heatsink 0 10 20 30 Input voltage VIN (V) 40 50 0 --30 –20 0 20 40 60 80 100 Operating temperature Ta (ºC) 7