1-2-1 2-Phase Stepper Motor Unipolar Driver ICs STA7130MPR/7131MPR/7132MPR 2-Phase to 2W 1-2 Phase Excitation Support, Built-in Sequencer ■Features ■Absolute Maximum Ratings • Lineup of built-in current sense resistor and built-in protection circuit-type Symbol Ratings Unit Motor Supply Voltage 46 46 *1 V V A V V V • Supporting the clock-input-method micro-step drive (built-in sequencer) REF Input Voltage Sense Voltage VM VBB Io VIN VREF VRS • Self-excitation PWM current control with fixed off time Power Dissipation PD • Synchronous PWM chopping function prevents motor noise in Hold mode Junction Temperature • Sleep mode for reducing the IC input current in stand-by state Storage Temperature Tj Ta Tstg • Power supply voltages, VBB: 46 V (max), 10 to 44 V normal operating range • Maximum output currents: 1 A, 1.5 A, and 2 A Driver Supply Voltage Output Current Logic Input Voltage Operating Ambient Temperature • ZIP type 18-pin molded package (STA package) (Ta=25°C) Parameter –0.3 to +6 –0.3 to +6 ±0.5 3.5 12.5 +150 W Remarks Mode F Excluding tw<1µs When Ta = 25°C When Tc = 25°C °C °C °C –20 to +80 –30 to +150 *1: Output current value may be limited for the STA7130MPR (1.0 A), 7131MPR (1.5 A), and 7132MPR (2.0 A), depending on the duty ratio, ambient temperature, and heating conditions. Do not exceed junction temperature of Tj under any circumstances. ■Recommended Operating Conditions Parameter Rating Symbol Motor Supply Voltage VM Driver Supply Voltage VBB Case Temperature TC max. 10 44 V 85 °C 44 ■Electrical Characteristics Parameter Main Supply Current Symbol Output MOSFET ON Resistance RDS(ON) Logic Input Voltage Logic Input Current REF Input Voltage REF Input Current Sense Voltage Sleep-Enable Recovery Time Switching Time Sense Resistance Fclock VIL VIH IIL IIH VREF VREFS IREF VSENSE TSE tcon tcoff 100 0.7 0.25 0.18 0.85 0.95 0.95 Vocp Iocp ICs V Temperature at Pin-10 Lead (without Fin) 2.3 ±10 ±10 0 2.0 VREF/3-0.03 100 0.65 mA mA V Ω V 1.4 0.7 0.305 0.205 0.155 0.7 2.3 3.5 4.5 125 VREF/3+0.03 STA7130MPR STA7131MPR STA7132MPR STA7130MPR STA7131MPR STA7132MPR When Clock Duty = 50% V V µA V µS µS µS Ω 0.75 V A 0.8 5 100 98.1 92.4 83.1 70.7 55.5 38.2 19.5 1.5 11.5 8.5 7 In operation Sleep 1 and Sleep 2 modes µA 0.9 5.5 ±10 VREF/3 Conditions Unit kHz 0.7 Ttsd VLOL ILOL ModeF ModeE ModeC ModeA Step Reference Current Ratio Mode8 Mode6 Mode4 Mode2 PWM Minimum ON Time ton(min) toff1 toff2 PWM OFF Time toff3 *The direction in which current flows out of the device is regarded as negative. 98 0.85 0.4 0.24 1.1 1.2 2.1 250 RS Overcurrent Sense Current Vocp÷Rs max. 10 3 VF Overcurrent Sense Voltage Thermal Protection Temperature Logic Output Voltage Logic Output Current min. Ratings typ. IBB IBBS V(BR)DSS Maximum Clock Frequency Remarks (VDD=5V, VBB=24V, Ta=25°C, unless otherwise specified) Output MOSFET Breakdown Voltage Output MOSFET Diode Forward Voltage Unit min. °C V mA % % % % % % % % µS µS µS µS Output OFF (Sleep 1) When step reference current ratio is 100% Sleep1&Sleep2 Clock → Out ON Clock → Out OFF STA7130MPR STA7131MPR STA7132MPR When motor coil shorts out STA7130MPR STA7131MPR STA7132MPR Rear of case (at the saturation temperature) ILOL =5mA VLOL =0.8V VREF=0.1V to 0.9V Mode 8 to F Mode 4 to 6 Mode 2 STA7130MPR/7131MPR/7132MPR ■Internal Block Diagram ■Pin Assignment 8 12 9 MIC PreDriver Sequencer & Sleep Circuit Protect 1/3 Protect DAC + Comp - 3 Rs 18 Reg. PreDriver SenseA 17 OutB 7 13 OutB 6 VBB 5 Clock 4 Reset CW/CCW M2 Sleep2 15 M0 11 M1 2 Flag Ref/Sleep1 OutA 1 TSD Synchro Control PWM Control 1/3 DAC + Comp - PWM Control DSC 16 Rs DSC 14 Sync SenseB Pin No. Symbol 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 OutA Phase A output Function OutA/ Phase A output Phase A current sense SenseA 2 phase excitation state output monitor output MO M1 Excitation mode setting input M2 Sleep 2 setting input Sleep2 Step Clock input Clock VBB Driver supply (motor supply) Gnd Device GND Control current mode/Sleep 1 setting input Ref/Sleep1 Internal logic reset input Reset Normal/reverse control input CW/CCW Sync PWM control signal input Flag Coil open/shorted detection output Phase B current sense SenseB OutB/ Phase B output OutB Phase B output 10 Gnd ■Typical Connection Diagram ■External Dimensions (ZIP18 with Fin [STA18Pin]) (Unit : mm) + Q1 Sleep r1 CA C1 OutA OutA VBB OutB OutB 1.3±0.1 (Measured at the root) r10 + (6.9) Reset Clock CB CW/COW Microcomputer, etc. M1 M2 ) R1 (4– +0.2 Sleep2 0.55 Sync Mo Ref/Sleep1 SerseA Gnd +0.2 –0.1 17XP1.27±0.5=21.59±1 (Measured at the tip) Flag r4 to r9 R-end STA7130MPR Series Sense (3.6) r11 (1) 9±0.2 VDD=3.0V to 5.5V 4±0.2 3.3±0.5 25.25±0.3 VS=10V to 44V 0.45 –0.1 2.54±0.5 (Measured at the tip) 25.55 (Including the resin burr) r2 r3 C1.5±0.5 C2 One-point Gnd Logic Gnd Power Gnd Forming No. No.434 Product Mass : Approx.6g ICs 99