器件名称:
TDA1154
功能描述:
SPEED REGULATOR FOR DC MOTORS
文件大小:
66.54KB 共6页
简 介:
TDA1154 SPEED REGULATOR FOR DC MOTORS MATCHING FLEXIBILITY TO MOTORS WITH VARIOUS CHARACTERISTICS BUILT-IN CURRENT LIMIT ON-CHIP 1.2V REFERENCE VOLTAGE STARTING CURRENT: 0.5 A @ 2.5V REFLECTION COEFFICIENT K = 20 DESCRIPTION The TDA1154 is a monolithic integrated circuit intended for speed regulation of permanent magnet dc motors used in record players, tape recorders, cassette recorders and toys. The circuit offers an excellent speed regulation with much higher power supply, temperature and load variations than conventional circuits built around discrete components. Minidip ORDERING NUMBER : TDA1154 Figure 1. Application circuit VCC = 12 V Rm Rt RS Eg Im = 14.7 = 290 = 1 k (total) = 2.65 V = 110 mA 3 : Ground 5 : Reference 8 : Output Other pins are not connected March 1993 1/6 TDA1154 PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol VCC IO Ptot Tj Tstg Supply voltage Output current Power dissipation Junction temperature Storage temperature range Parameter Value 20 1.2 (see curve) +150 -55 to +150 Unit V A W °C °C Figure 2. Test circuit THERMAL DATA Symbol Rth-j-amb Rthj-amb Parameter Thermal resistance junction-ambient Thermal resistance junction-pin 4 max max Value 100 70 Unit °C/W °C/W 2/6 TDA1154 ELECTRICAL CHARACTERISTICS Tamb = +25 °C (Unless otherwise specified) Symbol V(ref) V(ref) /T Parameter Reference voltage Reference voltage temperature coefficient Line regulator Test Conditions VCC = +6V I(8) = 0.1A Min. 1.15 Typ. 1.25 0.02 Max. 1.35 U……
