Sanyo LA4525 free download

File name la4525.pdf

Ordering number: EN4022C Monolithic Linear IC LA4525 Dual AF Power Amplifier for Radio Cassette Recorders Overview The LA4525 requires only a small number of external components to drive either two 4 speakers or one 8 speaker. The output power is typically 0.65 W when driving two 4 speakers. Package Dimensions unit : mm 3001B-DIP8 [LA4525] Features . Two-channel (dual) or single-channel (BTL) operation . Requires only a few external components. . 0.65 W (typ) output power into two 4 speakers . Wide power supply range: 3 to 15 V . 8-pin DIP (No heat sink needed) SANYO : DIP8 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Rg = 0 Note Conditions Ratings 15 1.5 ­25 to +75 ­40 to +150 Unit V W °C °C Note: Mounted on a 50 Ч 50 Ч 1.6 mm3 heat dissipating board Recommended Operating Conditions at Ta = 25°C Parameter Supply voltage Load resistance range Supply voltage range Symbol VCC RL VCC op Not in excess of package Pd Conditions Ratings 6 4 3 to 15 Unit V V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 32896HA(II)/D0192TS/4162TS No.4022-1/8 LA4525 Operating Characteristics at VCC = 6 V, Ta =25°C, RL = 4 , f = 1 kHz, Rg = 600 , Dual operation unless otherwise noted Parameter Quiescent supply current Output power Voltage gain Total harmonic distortion Output noise voltage Supply voltage ripple rejection Channel separation Input resistance Symbol ICCO PO1 PO2 VG THD VNO SVRR CH Sep Ri Condition Rg = 0 THD = 10% VCC = 9 V, RL = 8 , THD = 10% VO = 0 dBm PO = 0.1 W Rg = 0 , DIN AUDIO filter Rg = 0 , fR = 100 Hz, VR = 0 dBm VO = 0 dBm, Rg = 0 min 10 0.45 38 typ 15 0.65 1.0 40 0.2 100 43 55 100 max 30 Unit mA W W dB % µV dB dB k 42 0.7 400 35 45 70 130 Equivalent Block Diagram IN2 BTL IN Ch2 input amp. Predriver amp. Output amp. OUT2 PRE GND POWER GND IN1 Ch1 input amp. Predriver amp. Output amp. OUT1 Pin Description Number 1 2 3 4 5 6 7 8 Name OUT1 VCC OUT2 POWER GND BTL IN IN2 IN1 PRE GND Channel 1 output Supply voltage Channel 2 output Power amplifier ground Bridge test load input Channel 2 input Channel 1 input Preamplifier ground Description No.4022-2/8 LA4525 Allowable power dissipation, Pd max - W Mounted on Sanyo recommended board Independent IC Ambient temperature, Ta - °C Dual Operation Unit (capacitance:F) Sample Printed Circuit Pattern Unit (capacitance:F) 65 Ч 65mm2 (Cu-foiled area) No.4022-3/8 LA4525 External Components Comparison External components Output capacitors Input capacitors Bootstrap capacitors Feedback capacitors Filter capacitors Oscillation damping mylars Dual-mode operation total Existing Sanyo ICs · · · · · · 11 LA4525 · · Ч Ч Ч Ч 4 Pin Voltages Pin number 1 2 3 4 5 6 7 8 Pin name OUT1 VCC OUT2 POWER GND BTL IN IN2 IN1 PRE GND Pin voltage 2.8 V 6V 2.8 V 0V