Stepper Motor Driver SLA4708M External Dimensions (unit: mm) Features ● High output breakdown voltage of 50V ● Affluent output current of 1.5A ● Built-in overcurrent, overvoltage and thermal protection circuits ● Low standby current of 50µA 31.0±0.2 3.2±0.15 Breakdown voltage Input voltage Ratings Unit VS 35 V VO 50 VIN –0.3 to +7 V IO, AVE 1.5 A Diagnostic output sink current IDIAG 10 mA Diagnostic output withstand voltage IDIAG. H 7 V Operating temperature Top –40 to +85 ºC Storage temperature Tstg –40 to +150 ºC PD 3.5 (Ta=25ºC) W Lead plate thickness resins 0.8max 9.9±0.2 8.5max a b 12 Pin 1 +0.2 0.85 –0.1 1.2±0.15 V Output current Power Dissipation Conditions 4.8±0.2 1.7±0.7 ±0.2 2.7 16.0±0.2 Power supply voltage Symbol 9.5min (10.4) Parameter (Ta=25ºC) 13.0±0.2 16.4 Absolute Maximum Ratings Ellipse 3.2±0.15 • 3.8 24.4±0.2 1.45 +0.2 0.55 –0.1 ±0.15 2.2±0.7 11•P2.54±0.7=27.94±1.0 31.5 max a) Type No. b) Lot No. 1 2 3 4 5 6 7 8 9 10 11 12 Without heatsink Standard Circuit Diagram Electrical Characteristics Parameter Input voltage (I A/A, I B/B standby) Input current Symbol (VS =12V, Ta=25ºC) min typ VIL VIH C Ratings max 0.8 2.4 Unit Output leak current Overcurrent detection 4 OUTA V I IL –0.8 mA VIN = 0.4V I IH 50 µA VIN = 2.4V Overvoltage detection Saturation voltage of diagnostic output Standby current 42 VO.STA 1.3 V I O = 1A, Ta = 25ºC VO.STA 1.5 V I O = 1.5A, Ta = 25ºC 100 µA I O.LEAK I SD 1.8 VSD 27.5 I STB VO = 16V A V VDIAG.L 0.3 50 ZD V V µA I DIAG = 5mA VS = 12V 5 OUT A 9 OUT B SLA4708M 8 1 OUT B VS 12 DIAG 3 I A /A I B/B 10 5V Output saturation voltage + Conditions 2 STBY 4.7kΩ P-GND 6 L-GND 11 L-GND 7 N.C. CPU ZD: VS <35V C 100µF (Reference) Stepper motor ■ Overvoltage Protection Characteristics 20 200 14 Ta = 25ºC Vcc=12V Constant (ST = 5V) Output voltage VO (V) At Constant IS (mA) At standby IS (µA) Power supply current 12 100 ■ Saturation Voltage of Output Transistor Characteristics Saturation voltage of output transistor Vsat (V) ■ Power Supply Current Characteristics 10 At standby (ST = 0V) Common for all phases 10 8 6 4 2 0 0 0 10 20 30 Power supply voltage VS (V) 0 0 10 20 Power supply voltage VS (V) 30 35 2.0 Vcc (Vs) =16V Ta =25ºC Common for all phases 1.5 1.0 0.5 0 0 1.0 2.0 3.0 Output current IO (A) ■ Thermal Protection Characteristics 14 Vcc (Vs) =12V VST = 5V Output voltage VO (V) 12 10 8 T j2 T j1 6 4 2 0 0 110 120 130 140 150 160 Junction temperature Tj (ºC) 43