TA2125AF Preliminary TOSHIBA Bipolar Liner Integrated Circuit Silicon Monolithic TA2125AF Power Driver IC for CD Player TA2125AF is power driver IC developed for CD players. This IC have built-in 4 channel BTL power amplifiers and 1 channel H-Bridge driver. Which drives focus-coil and tracking coil for 3-beam pick-up head, disc motor, feed motor and loading motor. Featuers · 4 channel BTL linear drivers High output power: Vout = 5.1 Vp-p (VCC = 8 V, RL = 8 Ω) Stand-by switch for BTL drivers · 1 channel H-Bridge: VCE (H) + VCE (L) = 1.3 V (VR = VM = 8 V, IO = 200 mA) Logic control (forward, revers, brake, stand-by) · Punch through current restriction diode for H-bridge · 5 V regulator reference amp (with external output Tr.) · Thermal shut down protection · Operating supply voltage range: VCC = 5.0-9.0 V Weight: g (typ.) Block Diagram VR 4ch Driver REG RIN FIN STB IN3 IN4 STB VCC RL4 REG OUT 36 35 34 Control Logic 33 32 31 30 29 28 2 3 4 N.C. 26 25 24 5 6 7 N.C. N.C. 23 ´3 STBY STBY Iref 1 FIN 27 8 9 TSD FIN 22 21 11 GND 12 13 14 20 19 ´ 3 ´ 3 ´ 3 ´ 3 10 RL3 15 ´ 3 ´ 3 ´ 3 16 17 18 N.C. N.C. RL5 IN2 VCIN IN1 1 RL2 RL1 2002-02-12 TA2125AF Terminal Explanation No. Symbol 1 OUT5A 2 VM 3 OUT5B 4 VCIN Input reference voltage 4ch BTL 5 IN1 Input for ch1 4ch BTL 6 N.C. Open ¾ 7 N.C. Open ¾ 8 N.C. 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) ¾ 9 N.C. 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) ¾ 10 N.C. 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) ¾ 11 IN2 Input for ch2 12 N.C. Open ¾ 13 N.C. Open ¾ 14 VCC1 Supply voltage terminal for ch1/ch2 4ch BTL 15 OUT2M Inverted output for ch2 4ch BTL 16 OUT2P Non-inverted output for ch2 4ch BTL 17 OUT1M Inverted output for ch1 4ch BTL 18 OUT1P Non-inverted output for ch1 4ch BTL 19 OUT3P Non-inverted output for ch3 4ch BTL 20 OUT3M Inverted output for ch3 4ch BTL 21 OUT4P Non-inverted output for ch4 4ch BTL 22 OUT4M Inverted output for ch4 4ch BTL 23 VCC2 Supply voltage terminal for ch3/ch4 4ch BTL 24 N.C. Open 25 REG Connection with BASE of PNP Tr Regulator 26 REG OUT Output for regulator (5 V) Regulator 27 N.C. 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) ¾ 28 N.C. 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) ¾ 29 N.C. 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) ¾ 30 Function Output terminal H-bridge Supply voltage terminal for Logic H-bridge Output terminal H-bridge 4ch BTL ¾ REG STBY Standby control for regulator Regulator 31 IN4 Input for ch4 4ch BTL 32 IN3 Input for ch3 4ch BTL 33 STBY Standby control for 4ch BTL 4ch BTL 34 FIN Logic control input H-bridge 35 RIN Logic control input H-bridge 36 VR Supply voltage terminal for motor driver H-bridge 2 2002-02-12 TA2125AF Precaution Use (4ch BTL) · Input stage Minimum input DC voltage range for buffer is 0.2 V · Driver stage Each channel driver consists of BTL configuration linear amplifier. Voltage gain is fixed: Gv = 15.2dB · VCIN terminal VCIN is reference voltage terminal for input signal · GND Pin 8~10 and Pin 27~29 are connected to FIN through inner lead frame. Each FIN are not connected each other also. The heat of power dissipation is transferred to PCB, through PW-GND Pin. PW GND is connected to substrate of Pellet to connected copper foil area as large as possible. · VCC1/VCC2 Pin 14 and pin 23 are not connected through AL layer on chip. (H-Bridge) · VR/VM terminal VR terminal is control for H-brige dynamic range. I36 = 30 mA (Brake Mode) VM terminal is VCC terminal for H-Bridge. · STBY/REG STBY STBY is standby control terminal for 4ch BTL. REG STBY is standby control terminal for regulator. Maximum Ratings (Ta = 25°C) Characteristics Supply voltage Symbol Rating Unit VCC 12 V Power dissipation PD 1.7 W Operating temperature Topr -35~85 °C Storage temperature Tstg -55~150 °C 3 2002-02-12 TA2125AF Electrical Characteristics (Unless otherwise specified, VCC = 8 V, RL = 8 W, VBIAS = 2.1 V, f = 1 kHz, Ta = 25°C) Symbol Test Circuit Test Condition Min Typ. Max Unit VCC1, 2 ¾ ¾ 5 8 9 V Iccq ¾ 27 37 60 mA Symbol Test Circuit Min Typ. Max Unit Output offset voltage VOS ¾ Rg = 0 -50 10 50 mV Maximum output voltage VOM ¾ VIN = 4 V/GND 4.5 5.1 ¾ V Gv ¾ VIN = VBIAS ± 200 mV 14.0 15.2 16.4 dB VSTB (on) ¾ ¾ ¾ 0.5 V VSTB (off) ¾ 3.0 ¾ ¾ V ISTB1 ¾ ¾ ¾ 1 mA Symbol Test Circuit Min Typ. Max Unit Vreg ¾ 4.6 5 5.2 V Vreg (on) ¾ 2.5 ¾ VCC V Vreg (off) ¾ GND ¾ 1.5 V Symbol Test Circuit Min Typ. Max Unit Output saturation voltage VCE ¾ Io = 200 mA ¾ 1.3 1.4 V Stand-by current ISTB2 ¾ 4ch BTL: Stand-by 5 V REG: Stand-by ¾ ¾ 1 mA VHB (on) ¾ 2.5 ¾ VCC V VHB (off) ¾ GND ¾ 0.7 V Characteristics Operating supply voltage Quiescent current VIN = VBIAS, RL = OPEN (With out H-SW) 4ch BTL Driver Characteristics Voltage gain Stand-by 1 control voltage Stand-by current Test Condition VIN = VBIAS, RL = OPEN H-Bridge: Stand-by 5 V REG: Stand-by Regulator Reference Amp Characteristics Output voltage Regulator control voltage Test Condition Io = 200 mA Tr. 2SA1203Y H-Bridge Characteristics Control voltage Test Condition H-Bridge Control Logic/VR Current (36pin) Operation Mode Fin Rin Out5A Out5B VR Current Unit Forward H L L H 19.5 mA Revers L H H L 19.5 mA Brake H H L L 30 mA Stand-by L L Open Open 1 mA 4 2002-02-12 TA2125AF 36 35 34 Control Logic 33 32 31 30 29 28 2 3 4 27 5 6 7 N.C. N.C. 26 25 24 23 ´3 8 9 TSD FIN 22 21 11 12 13 14 20 19 ´ 3 ´ 3 ´ 3 ´ 3 10 RL3 N.C. STBY STBY Iref 1 FIN RL4 47 mF 0.1 mF 0.1 mF 100 mF Test Circuit 15 ´ 3 ´ 3 ´ 3 16 17 18 N.C. N.C. GND RL5 RL2 5 RL1 2002-02-12 TA2125AF Package Dimensions Weight: g (typ.) 6 2002-02-12 TA2125AF RESTRICTIONS ON PRODUCT USE 000707EBF · TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc.. · The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer’s own risk. · This product generates heat during normal operation. However, substandard performance or malfunction may cause the product and its peripherals to reach abnormally high temperatures. The product is often the final stage (the external output stage) of a circuit. Substandard performance or malfunction of the destination device to which the circuit supplies output may cause damage to the circuit or to the product. · The products described in this document are subject to the foreign exchange and foreign trade laws. · The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. · The information contained herein is subject to change without notice. 7 2002-02-12