SLA7611M

1-2-2 3-Phase Stepper Motor Driver ICs SLA7611M Star Connection/Delta Connection ■Absolute Maximum Ratings Parameter Main Supply Voltage Logic Supply Voltage Output Current Logic Input Voltage REF Input Voltage PFD Input Voltage Sense Voltage Power Dissipation Junction Temperature Operating Ambient Temperature Storage Temperature Symbol VBB VCC I O (Ave) I O (Peak) VIN VREF VPFD VRs PD Tj Ta Tstg Ratings 36 7 3 6 –0.3 to VCC+0.3 –0.3 to VCC+0.3 –0.3 to VCC+0.3 –2 to 2 4 150 –20 to 85 –30 to 150 Unit V V A A V V V V W °C °C °C Without heatsink tw < 1ms (Ta=25°C) Remarks ■Recommended Operating Conditions Parameter Main Supply Voltage Logic Supply Voltage REF Input Voltage Case Temperature Symbol VBB VCC VREF TC Ratings 10 to 30 3 to 5.5 0.2 to V CC 110max Unit V V V °C The VCC surge voltage should be 0.5V or lower. The control current precision is degraded at 0.2V or lower. Temperature at Pin-10 Lead (without heatsink) Remarks ■Electrical Characteristics (Ta = 25°C, V BB = 24V, V CC = 5V, unless otherwise specified) Parameter Main Supply Current Logic Supply Current Charge Pump Voltage Output Withstand Voltage Output MOS FET ON Resistance (total of the upper and lower values) Output MOS FET Diode Forward Voltage Logic Input Voltage Logic Input Current Maximum Clock Frequency PFD Input Current RC Terminal Inflow Current PFD Input Voltage Sense Voltage REF Input Voltage REF Input Current PWM OFF Time Thermal Protection Circuit Activation Temperature Hysteresis of Thermal Protection Circuit Activation Temperature Switching Time Symbol IBB Icc VB VO RDS (on) VSD VIL VIH IIL IIH Fclock IPFD IRC VPFDS VPFDM VPFDF VRs VREF IREF TOFF Tj ∆T j TONC TOFFC 0 ± 10 1.1× Rt× Ct 150 10 2.5 2 VREF× 0.2 VCC 1.7 0.7 ± 10 200 VCC 1.3 0.3 VCC×0.75 ±1 ±1 100 36 0.8 1.5 VCC×0.25 VBB +5 Ratings min typ max 20 10 Unit mA mA V V Ω V V V µA IDS=3A ISD=3A Remarks µA kHz Excluding E na µA µA V V V V V Slow Decay Mixed Decay Fast Decay Steady-state µA µs °C °C µs µs Clock→Out Clock→Out 130 ICs SLA7611M ■Internal Block Diagram ■Pin Assignment (Function Table) Pin No. 1 2 3 4 5 OUT Block 2 OUTU 11 OUTV 17 OUTW 1 CP1 16 VCC 3 TSD UVLO Reg CP2 15 VB 18 VBB 9 Symbol Sense Out U VCC RC PFD REF Reset Ena VBB GND Out V CW/CCW Clock Full/Half CP2 CP1 Out W VB Function Current sense Phase U output Logic supply PWM OFF time setting Mixed Decay ratio setting Control current setting Internal logic reset Output Enable/Disable control Main supply (motor supply) Device GND Phase V output Forward/reverse control Step Clock Full/half step control Charge pump capacitor 2 Charge pump capacitor 1 Phase W output Boost charge pump Charge Pump 6 7 8 9 10 11 12 13 14 15 Clock 13 CW/CCW 12 F/H Ena Reset 14 8 7 + _ Sequence Logic Level shift & Pri-Driver REF 6 PWM Control Current Control S 5 PFD 4 RC 10 GND 16 17 18 ■Typical Connection Diagram C2 16 3 CB + C1 10 to 30V 9 VBB + 5V C4 C3 15 CP2 18 VB CA C5 VCC CP1 13 12 OUTU Clock CW/CCW F/H Ena OUTW Reset S 2 Microcomputer, etc. 11 14 8 7 R4 R2 SLA7611M OUTV 17 1 3φ SPM 6 REF PFD 5 4 RC 10 GND Rs Ct R1 R5 R3 S-GND P-GND Rt ■External Dimensions (ZIP18 with Fin [SLA18Pin]) 31±0.2 24.4±0.2 16.4±0.2 (Unit : mm) φ 3.2±0.15 φ 3.2±0.15×3.8 4.8 ±0.2 1.7±0.1 16 ±0.2 13 ±0.2 9.9 ±0.2 Part Number Lot number R-End 2.45±0.2 6.7±0.5 (3) 9.7 –0.5 +1 0.65 –0.1 +0.2 1 –0.1 17×P1.68±0.4=28.56±1 31.3±0.2 +0.2 0.55 –0.1 4±0.7 +0.2 Other lead forming shapes are also available. For details, contact our sales representative. 1 2 3 . . . . . . . . 18 Forming No. No.871 Product Mass : Approx.6g ICs 131