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| Dropper Type Regulator with Reset Function SI-3011S Features q 5-terminal IC regulator with reset function; 0.7A output current q Voltage accuracy of 2% q Low Dropout voltage 0.5V at IO 0.3A q Built-in constant current type overcurrent, overvoltage and thermal protection circuits q TO-220 equivalent full-mold miniature package External Dimensions (unit: mm) 3.2 0.2 0.5 10.00.2 4.20.2 2.80.2 4.00.2 a 7.90.2 16.90.3 Parameter DC input voltage Output current Power Dissipation Symbol VIN IO PD1 PD2 Ratings 35 0.7 * 1 22 1.8 -40 to +150 -40 to +105 -40 to +150 5.5 66.7 Unit V A W W C C C C/W C/W Conditions 0.950.15 -0.1 0.85 -+ 0.2 (2.0) (4.6) 0.45 P1.7 0.7 b 2.60.1 + 0.2 --0.1 - Stand-alone without heatsink * 4 = 6.8 0.7 Junction temperature Operating temperature Storage temperature Junction to case thermal resistance Junction to ambient-air thermal resistance Tj TOP Tstg j-c 3.9 0.7 (4.3) 8.20.7 1 2 3 4 5 j-a Stand-alone without heatsink Terminal connections 1. VIN a: Type No. 2. VRST b: Lot No. 3. GND 4. DLY 5. VOUT (Forming No. 1101) Electrical Characteristics Parameter Input voltage Output voltage Dropout voltage Ripple rejection Quiescent circuit current Overcurrent protection starting current DLY terminal Threshold voltage Source current Symbol VIN VO VDIF RREJ Iq IS VDLYth I DLY VothL * Voth VRSTH VRSTL IRSTH IRSTL 1.3 4 (Tj=25C, VIN=14V, IO=0.3A unless otherwise specified) Ratings min 6 *2 4.90 5.00 typ max 30 * 1 5.10 0.5 54 8.5 0.71 * 2.7 25 3 Unit V V V dB Conditions Equivalent Circuit Diagram VIN 1 5 VOUT (8.0) With infinite heatsink 5.00.6 (17.9) Absolute Maximum Ratings (Ta=25C) f = 100 to 120Hz TSD OCP DRIVE OVP DET ERR 2 VRST 12 mA A IO = 0A RESET REF1 REF2 4 DLY 2.9 35 VO * 0.92 100 3.1 45 VO * 0.94 150 V A V mV V DLY terminal open GND 1 Reset threshold voltage level Reset threshold voltage hysteresis H-level output voltage VO * 0.90 50 VO -0.1 VO = 5.0V (typ) * VOth = VOthH - VOthL VO = 5.0V (typ), RL = 510 VO = 5.0V (typ), RL = 510 VO = 5.0V (typ), shorted across VRST and GND VRST = 0.5V 5 VRST terminal Source current when H-level Sink current when L-level * 6 L-level output voltage 0.5 V mA Standard Circuit Diagram *2 D1 1 VIN Power supply -10 mA Notes: *1. Since P D(max) = (VIN - VO) * IO = 22 (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. IS rating shall be the point at which the output voltage VO (VIN = 14V, Io = 0.3A) drops to -5%. *4. VOthL is the Vo threshold voltage at which the VRST terminal turns from high to low. *5. VOthH is the Vo threshold voltage at which the VRST terminal turns from low to high. VothH may be given by VOthL plus VOth. *6. Reset signal output terminal VRST is pulled up in the IC [pull-up resistance 3 k (typ)], allowing direct connection with a logic circuit. 5 SI-3011S 3 4 2 VOUT VRST DLY RL Reset signal output terminal * 1 GND *2 D2 CDLY Co : *1 C1 : Reset Signal Output Timing Chart VIN VO + VDIF Input voltage GND VOthH Output voltage VO VOthL VOth VDLY GND Voltage across VDLYth delay capacitor Output capacitor (47 to 100F, 50V) Anti-oscillation capacitors (C1: approx. 47F). This must be connected to terminals 1 (VIN) and 3 (GND) via the shortest possible routing. An approximately 0.33F capacitor with good high frequency characteristics must be connected in parallel in case of inductive input lines or long-distance wiring. Tantalum capacitors are recommended for C1 and C0, especially at low temperatures. *2 D1,D2 : Protection diode. Required as protection against reverse biasing between input and output. (Recommended diode: Sanken EU2Z.) 0 (V) VRSTH [Calculating tDLY] Reset signal delay time tDLY is calculated from the following formula: VRSTL Reset signal output 0 (V) tDLY tDLY = tDLY VDLYth + 0.2 * CDLY * IDLY is the current flowing from DLY terminal IDLY shown in the Standard Circuit Diagram. 10 Load C1 + CO + s Io vs VDIF Characteristics 1.5 s Line Regulation 5.10 s Load Regulation 5.10 Dropout voltage VDIF (V) 5.05 Output voltage VO (V) Output voltage VO (V) 1.0 IO=0.1A 0.3A 0.7A 5.05 VIN = 14V 10V 5.00 0A 5.00 6V 0.5 4.95 4.95 0 0 0.2 0.4 0.6 0.8 1.0 Output current IO (A) 4.90 4.90 0 5 10 15 20 25 30 0 0.2 0.4 0.6 0.8 Input voltage V IN (V) Output current IO (A) s Output Voltage Temperature Characteristics 5.1 s Rise Characteristics 6 5 4 3 2 IO = 0A IO = 0A 0.1A 0.3A 0.7A s Quiescent Circuit Current 20 IO = 0A Quiescent current lq (mA) 15 Output voltage VO (V) 5.0 Output voltage VO (V) 10 5 1 0 0 2 4 6 8 Input voltage VIN (V) 4.9 -40 0 50 100 150 0 0 5 10 15 20 25 30 Input voltage VIN (V) Ambient temperature Ta (C) s Overcurrent Protection Characteristics 6 5 4 3 2 1 0 0 0.5 1.0 1.5 Output current IO (A) s Thermal Protection Characteristics 6 IO = 5mA s Overvoltage Protection Characteristics 6 IOUT = 5mA 5 4 3 2 1 0 100 150 200 Ambient temperature Ta (C) 5 4 3 2 1 0 25 Output voltage VO (V) Output voltage VO (V) VIN = 6V 10V 14V 16V Output voltage VO (V) 30 35 40 Input voltage VIN (V) s Ta--PD Characteristics 25 With infinite heatsink With silicone grease Heatsink: aluminum 20 Power Dissipation PD (W) 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. 200 * 200 * 2mm (2.3C/W) 15 100 * 100 * 2mm (5.2C/W) 10 75 * 75 * 2mm (7.6C/W) 5 Without heatsink 0 -40 0 40 80 120 160 Operating temperature Ta (C) 11 Dropper Type Regulator with Reset Function SI-3011S s VRST Terminal L-level Output Characteristics 1.0 s Reset Threshold Voltage Characteristics 6 IOUT = 0A s DLY Terminal Source Current Characteristics 50 IO = 0A IDLY (A) DLY terminal source current 5 IOUT = 0A 0.1A 0.3A VRST (V) VRST (V) 40 4 3 2 1 30 VRST voltage 0.5 VRST voltage 20 10 0 0 1 2 3 4 5 6 Input voltage VIN (V) 0 4.0 0 0 5 10 15 20 25 30 Input voltage VIN (V) 4.5 Output voltage VO (V) 5.0 s DLY Terminal Output Voltage Characteristics 6 IO = 0A s Reset Signal Delay Characteristics 1 5 100m VRST (V) Delay time t (sec) 4 3 2 1 0 0 1 2 3 4 5 DLY terminal voltage VDLY (V) VIN = 14V IO = 0A VRST voltage 10m 1m 100 1000p 0.01 0.1 1 10 100 Delay capacitor capacity CDLY ( ) 12 |
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