2-ph Stepper-motor Driver ICs SPF7211 External Dimensions (unit: mm) ● Low output saturation voltage (high-side: 1.5V max.; low-side: 0.8V max.) ● Built-in recovery diode ● Built-in standby function ● Built-in overcurrent and thermal protection circuits and low voltage input shutoff function ● Built-in overload and disconnection detection function 17.28±0.2 Flag terminal withstand voltage Flag terminal current Detect voltage Power dissipation Junction temperature Operating temperature Storage temperature a Ratings 40 –0.3 to 15 ±0.8 ±1.0 7 3 –2 to 2 4.1 39 150 –40 to 110 –40 to 150 PD Tj Top Tstg Unit V V A V mA V W Remarks VIN 2±0.2 b Symbol VBB VIN Io IoPeak VFlag IFlag VRs 10.5±0.3 Fin thickness 1 12 +0.15 1.27±0.25 VBB 0.4 – 0.05 2.5±0.2 Output current 1.0 –0.05 13 Absolute Maximum Ratings Parameter Main power supply voltage Input voltage +0.1 15.58±0.2 24 7.5±0.2 Features Tw 1mS VFlag VBB +0.15 0.25– 0.05 a) Part No. b) Lot No. For Ta = 25°C * 1 For Tc (Ttab) = 25°C °C °C °C Note: *1: With glass epoxy + copper foil board (size 5.0•7.4cm; t: glass epoxy = 1.6mm /copper foil = 18µm) Standard Circuit Diagram Recommended Operation Range Unit V V A V mA V °C Rs Remarks VIN VBB Continuous VFlag VBB I20 24 I21 Ph2 FL1 GND GND GND GND Out2A Rs2 FL2 Out2B 13 Ratings 6 to 18 –0.3 to 7.0 ±0.5 0 to 7.0 0 to 1.0 –1 to 1 –40 to 110 µPC (ECU) SPM Electrical Characteristics Parameter Main power supply current Low voltage protection operation voltage UVLO hysteresis voltage Output leak current Symbol IBB IBBS VUVLO VUVLOhys IoleakL IoleakH min Ratings typ 3.5 –100 100 0.5 0.8 1.2 1.5 1.2 1.3 Output saturation voltage VsatH Recovery diode forward voltage Input terminal Input voltage Hysteresis voltage Ph terminal Input current Ixx, Set terminals Input current Detect voltage VRs Oscillation frequency PWM frequency Ct terminal threshold voltage Ct terminal current Overcurrent detection voltage Open detection voltage Flag terminal leak current Flag terminal saturation voltage Flag terminal current Response pulse width Set terminal Pulse rate Pulse number Flag response time OCP operation Open operation I/O propagation time Thermal protection temperature Thermal protection hysteresis Thermal alarm temperature Thermal alarm hysteresis 58 V FL V FH VFGO VIL VIH VIhys IIL IIH IIL IIH Fosc FPWM VctL VctH Ictsink Ictsouce VocpL VocpH VocpL VocpH Vopen IleakFlag VFlagL IFlag Tpw Tpws Fclock Pulse tocp1 tocp2 tocp3 topen1 topen2 tonH1 toffH1 tonH2 toffH2 tonL1 toffL1 tonL2 toffL2 Tj ∆Tj Talarm ∆Talarm Rs max 50 50 4.5 0.5 VsatL 1.2 0.8 2.0 0.5 –5 –5 –30 660 420 40 28.8 14.4 1.5 VBB–2.5 1.0 VBB–2.3 5 5 700 450 70 48 24 0.5 1.5 720 –120 3.0 VBB–2.0 50 740 480 90 72 36 4.2 VBB–1.7 1.85 VBB–1.5 –60 10 0.5 3 10 100 17 2.5 5.0 5.0 2.5 2.5 24 256 5.0 10.0 10.0 5.0 5.0 1.5 1.5 31 10.0 20.0 20.0 10.0 10.0 100 100 2.0 0.5 100 100 150 120 20 130 20 I11 Ph1 Ct Set GND GND GND Out1A Rs1 VBB 12 Out1B Symbol VBB VIN Io VFlag IFlag VRs Top 1 I10 Parameter Main power supply voltage Input voltage Output current Flag terminal withstand voltage Flag terminal current Detect voltage Operating temperature 140 Unit Conditions mA µA V V µA µA V V V V V V V V V V µA µA µA µA mV mV mV kHz kHz V V µA µA V V V V mV µA V mA µS µS Hz — µS µS µS µS µS µS µS µS µS µS µS µS µS °C °C °C °C In ordinary operation (no load) At sleep VBB = 40V, Vo = 0V VBB = Vo = 40V Io = 0.5A Io = 0.8A Io = –0.5A Io = –0.8A Io = 0.5A Io = –0.5A Io = –0.5A Ct 2200pF Rs 1Ω typ (1 to 2W) IoM VRs/Rs 2-phase excitation Clock Ph1 I10, I11 Ph2 I20, I21 *1 Out voltage Out voltage VBB = 5.5V VBB = 5.5V Sence voltage VFlag = 7V IFlag = 1mA In ordinary operation At sleep Ct = 2200pF In ordinary operation; Ct = 2200pF At switching the phase When Ixx shifts from L to H In ordinary operation When Ixx shifts from L to H *2 Note: *1: The Ct terminal threshold voltage and current are the design values. Warranty is based on the oscillation frequency. *2: Thermal protection and alarm temperatures are design values. Excitation Signal Time Chart 0 L H L H 1 H H L H 2 H H H H 3 L H H H 0 L H L H 1 H H L H 1 to 2-phase excitation Clock Ph1 I10, I11 Ph2 I20, I21 VIL = 0.8V VIH = 2.0V Ix0 = High, Ix1 = High Ix0 = Low, Ix1 = High Ix0 = High, Ix1 = Low Ct = 2200pF±20% Ct = 2200pF±20% VBB = 6 to 18V + 0 L H L H 1 H L L H 2 H H L H 3 H H H L 4 H H H H 5 L L H H 6 L H H H 7 L H L L 0 L H L H 1 H L L H 2 H H L H 3 H H H L * For the 1 to 2-phase excitation application, switch the Ph signal in the step of 1-ph excitation (Ixx turns from high to low). The OPEN detection function is invalid except in this sequence. 2-ph Stepper-motor Driver ICs SPF7211 Electrical Characteristics ■ Vsat Temperature Characteristics (Io=0.5A) ■ Diode VF Characteristics (IF=0.5A) 1.7 VFGO VsatH 1 0.8 0.6 0.4 VsatL 1.5 Forward voltage VF (V) Saturation voltage Vsat (V) 1.2 0.2 1.3 1.1 VFH 0.9 VFL 0.7 0 –30 –10 10 30 50 0.5 –30 –10 10 70 90 110 130 150 Junction temperature (ºC) ■ OSC Temperature Characteristics 70 90 110 130 150 ■ Ta-PD Characteristics 55 40 Infinite heatsink equivalent (Tc=25°C) j-tab 3.2°C/W 53 FOSC 51 49 47 Power dissipation PD (W) Oscillation frequency FOSC (kHz) 30 50 Junction temperature (ºC) 30 20 10 Copper foil area (5.0•7.4mm, t=18µm) j-a 30.5°C/W Ct=2200pF 45 –30 –10 10 30 50 70 90 110 130 150 Junction temperature (ºC) 0 0 25 50 75 100 125 150 Ambient temperature Ta (ºC) 59