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Features
Constant Current Control Function (Fixed Frequency PWM Control) 4 2 bit 4-Phase Input 2-bit Digital Current Selection Noise Cancellation Function Cross Conduction Protection Thermal Shutdown Function Stand-by Function Built-in Flywheel and Flyback Diodes
Absolute Maximum Ratings
Ta=25 Parameter Logic Supply Voltage Logic Input Voltage Load Supply Voltage Output Current Flywheel Diode Current Power Dissipation Storage Temperature Junction Temperature Symbol VCC VLOGIC Vmm IC If PD Tstg Tj -40 0 0 Rating 6 VCC 35 0.8 0.8 3 150 150 V V V A A W Ta=25 unless otherwise specified Unit
U170-1
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Electrical Characteristics
Ta=25 ,VCC=5V Parameter Symbol Condition min. Ta=25 ,VCC=5V unless otherwise specified typ. max. Unit
Output stage
Vmm 2 OFF Load Supply Current 2 Circuit OFF Vmm Load Supply Current STB Output Saturation Voltage Upper side Output Saturation Voltage Lower side Output Leakage Current Upper side Output Leakage Current Lower side Diode Forward Drop Upper side Diode Forward Drop Lower side Imm (OFF) Imm (STB) VCE (SAT) H VCE (SAT) L IrH IrL VFH VFL Vmm=12V, VIN=all 0V or all 5V Vmm=35V, VSTB=0V IC=0.8A IC=0.8A Vmm=35V, VOUT=0V VOUT=35V, VRs=0V If=0.8A If=0.8A 2.0 1.2 0.8 1.4 1.3 4.4 10 1.4 1.4 10 10 1.6 1.5 mA A V V A A V V
Logic stage
VCC 2 ON Logic Supply Current 2 Circuit ON VCC 2 OFF Logic Supply Current 2 Circuit OFF VCC Logic Supply Current STB IN H IN H Input Voltage IN L IN L Input Voltage IN H IN H Input Current IN L IN L Input Current I0, I1 H I0, I1 H Input Voltage I0, I1 L I0, I1 L Input Voltage I0, I1 H I0, I1 H Input Current I0, I1 L I0, I1 L Input Current STB H STB H Input Voltage STB L STB L Input Voltage STB H STB H Input Current STB L STB L Input Current Vref Vref Input Current Vs Vs Input Current Comp 100 Comparator Threshold 100% Comp 70 Comparator Threshold 70% Comp 33 Comparator Threshold 33% Stand-by Recover Delay Time Chopping Frequency Blanking Time Vs Vs maximum Voltage Thermal Shutdown Temperature Floating is possible (built-in pull-up resistance) ICC (ON) ICC (OFF) ICC (STB) VINH VINL IINH IINL VI0/I1H VI0/I1L II0/I1H II0/I1L VSTBH VSTBL ISTBH ISTBL Iref Is Vs1 Vs2 Vs3 td (STB) fchop tb Vs (max) TTSD Ct=3300pF, Rt=18k Ct=3300pF VSTB=3.3 or 5V VSTB=0V Vr=5V Vs=0V Vr=5V, VI0=0V, VI1=0V Vr=5V, VI0=5V, VI1=0V Vr=5V, VI0=0V, VI1=5V VI0/I1=3.3 or 5V VI0/I1=0V VIN=3.3 or 5V VIN=0V VIN=all 0V or all 5V VSTB=0V 2.3 GND 2.3 GND 2.3 GND 0.475 0.322 0.153 50 15 9 -3 -75 -300 500 -1 0.5 0.35 0.17 23 1.55 150 62 20 13 VCC 0.6 10 -20 VCC 0.6 10 -100 VCC 0.6 10 -500 650 -10 0.525 0.378 0.187 500 1.5 mA mA mA V V A A V V A A V V A A A A V V V s kHz s V
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U170-1
Typical Application
Recommended External Components Value
Symbol Rt Ct Vr Recommendation 18 3300 VCC k pF V Unit
Recommended Operating Conditions
Ta=25 Parameter Junction Temperature Logic Supply Voltage Load Supply Voltage Symbol Tj VCC Vmm Ta=25 unless otherwise specified Unit Recommendation -25 4.75 120 5.25 31 V V
Setting of Output Current and Chopping Frequency
Output Current Setting Vr - 0.015 lchop A 10 x Rs Chopping Frequency Setting 1 fchop Hz 0.72 x Ct x Rt
T=1/fchop Ichop
Constant current waveform Motor current
U170-1
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3/4
Pin Assignment
Top View MTD2002F
Package HSOP28
Truth Table
IN 1 or 4 L L H H IN 2 or 3 L H L H OUT 1 or 4 OFF L H OFF OUT 2 or 3 OFF H L OFF
I0 L H L H
I1 L L H H
Output current level 100 70 33 0
Vref V at Vr=5V 0.5 r 5 0.35 r 8 0.17 r 10 -
STB L H or Open
Mode Stand-by Active
www.shindengen.co.jp/product/semi/
U170-1

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