NTE1885 Datasheet | NTE Electronics

Features : D Low heat generation due to constant current chopper system. D Functions of pause action and power down. D Able to be used in any stepping motor of hybrid typ, P.M. type, V.R. type. D Inverter buffer provides direct drive, for 4 phase dual excitation. D Built in sensing power resistors for load current. D Protection elements for fly- back voltage are included. Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC (Quiescent) - - - - - - - - - - . . . 50V Phase Peak Current, IOH - - - - - - - - - - - . . . . 2.1A Operating Case Temperature, TC - - - - - - - - - - +105°C Junction Temperature, Tj - - - - - - - - - - - . . +150°C Storage Temperature Range, Tstg - - - - - - - - . . - 40° to +125°C Remended Operating Conditions: (TA = +25°C Unless othrwise specified) Supply Voltage Range, VCC1 - - - - - - - - - . . . . 22V to 45V Phase Peak Current, IOH - - - - - - - - - - - . . . . 1.5A Operating Characteristics: (TA = +25°C, VCC1 = 36V, VCC2 = 5V Unless otherwise specified) Parameter Diode Forward Voltage Symbol Vdf- 1 Vdf- 2 Output Saturation Voltage Vsat- 1 Vsat- 2 Output Current OSC Frequency Thermal Resistance (Note 1) IO- 1 f θj- c TR1, TR6 TR2, TR3, TR4, TR5 Test Conditions If = 0.3A If = 0.5A RL = 12Ω, Vin = GND, VCC1 = 22V RL = 21Ω, Vin = GND, VCC1 = 36V Min Typ...