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CS3717AGNF16 Arkusz danych(PDF) 1 Page - ON Semiconductor |
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CS3717AGNF16 Arkusz danych(HTML) 1 Page - ON Semiconductor |
1 / 8 page 1 Features s Full/Half /Quarter Step Operation s Output Current Up to 1 A s Motor Supply Voltage 10V to 46V s Integrated Bootstrap Lowers Saturation Voltage s Built In Protection Diodes s Externally Selectable Current Level s Digital or Analog Control of Output Current Level s Thermal Overload Protection s Minimum External Components Package Options 1A H-Bridge Stepper Motor Driver CS3717A Description Block Diagram 16L PDIP (Internally Fused Leads) 1 OUTB Pulse VDD B Gnd VCC IN1 DIRECTION Sense OUTA VDD A Gnd Gnd VREF Comp In IN0 Gnd December, 2001 - Rev. 4 ON Semiconductor 2000 South County Trail, East Greenwich, RI 02818 Tel: (401)885–3600 Fax: (401)885–5786 N. American Technical Support: 800-282-9855 Web Site: www.cherry–semi.com The CS3717A controls and drives one phase of a bipolar stepper motor with chopper control of the phase current. Current levels may be selected in three steps by means of two logic inputs which select one of three current comparators. When both of these inputs are high the device is disabled. A separate logic input controls the direction of cur- rent flow. A monostable, pro- grammed by an external RC net- work, sets the current decay time. The power section is a full H-bridge driver with four internal clamp diodes for current recirculation. An external connection to the lower emitters is available for the insertion of a sensing resistor. Two CS3717A’s and several external components form a complete stepper motor drive subsystem. The recommended operating ambient temperature range is from 0° to 70°C. The CS3717A is supplied in a 16 lead PDIP. Power Supply Voltage (VDDA, VDDB)............................................................50V Logic Supply Voltage (VCC) .............................................................................7V Logic Input Voltage (IN0, IN1, DIRECTION) ...............................................6V Comparator Input............................................................................................VCC Reference Input Voltage..................................................................................15V Output Current (DC Operation)...................................................................1.2A Storage Temperature .................................................................–55°C to +150°C Operating Junction Temperature ............................................–40°C to +150°C Lead Temperature Soldering Wave Solder(through hole styles only) ...........10 sec. max, 260°C peak Absolute Maximum Ratings THERMAL SHUTDOWN VDD A Pulse Comp In Sense OUTA OUTB VDDB DIRECTION IN1 IN0 VCC VREF Gnd + - + - + - MONO- STABLE 105 Ω 223 Ω 223 Ω 6K Ω 00 01 10 11 |
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Podobny opis - CS3717AGNF16 |
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