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| TK10417 POWER AMPLIFIER FEATURES s s s s s s Very Wide Operating Voltage (VCC = 1.8 to 5.5 V) Very Low Supply Current Very Low Standby Current Miniature Package (SOT23L-8) Adjustable Voltage Gain (VG1 = 0 to 40 dB) Active High On/Off Control APPLICATIONS s Speaker Driver for Portable Equipment s Headphone Driver s Toys DESCRIPTION The TK10417M is a very low operating voltage and current audio power amplifier. The device is in the "on" state when the standby pin is pulled to a logic high level. 01S TK10417M STANDBY VIN+ Vref VCC GND VOUT The TK10417M is available in the very small SOT23L-8 surface mount package. VINGND BLOCK DIAGRAM TK10417M Tape/Reel Code 47 k 100 k 43 k TAPE/REEL CODE TL: Tape Left January 2000 TOKO, Inc. + Logic High: Active ORDERING INFORMATION - Page 1 TK10417 ABSOLUTE MAXIMUM RATINGS Supply Voltage ........................................................... 8 V Operating Voltage ......................................... 1.8 to 5.5 V Power Dissipation (Notes 1 and 2) ..................... 400 mW Storage Temperature Range ................... -55 to +150 C Operating Temperature Range ...................-20 to +70 C TK10417 ELECTRICAL CHARACTERISTICS Test Conditions: VCC = 3.6 V, f = 1.0 kHz, RL = 8 , COUT = 470 F, TA = 25 C, unless otherwise specified. SYMBOL ICC ISTBY ICONT VTHL VTLH GVA THD PARAMETER Supply Current Standby Supply Current Control Terminal Current Threshold Voltage (High to Low) Threshold Voltage (Low to High) Voltage Gain Total Harmonic Distortion VCC = 3.6 V, POUT = 40 mW VCC = 5.0 V, POUT = 90 mW POUT(MAX) RR VOUT(NOISE) VOUT(DC) Maximum Output Power Ripple Rejection Ratio Output Noise Voltage DC Voltage at Output Terminal VCC = 3.6 V, THD 10% VCC = 5.0 V, THD 10% Cref = 22 F, f = 1 kHz Rg = 600 , VIN = 0 V 1.20 60 140 TEST CONDITIONS VCC = 3.6 V, RL = VCC = 5.0 V, RL = Pin 1 = GND, RL = Pin 1 = VCC = 3.6 V, Sink Current Pin 1, Operation to Standby Pin 1, Standby to Operation 0.0 1.8 24.0 26.0 0.5 0.5 90 200 45.0 100 1.40 500 1.60 MIN TYP 2.0 2.1 0.1 42 MAX 3.0 3.2 1.0 100 0.5 VCC 27.0 1.0 1.0 UNITS mA mA A A V V dB % % mW mW dB V V Note 1: Power dissipation is 400 mW in free air. Derate at 3.2 mW/C for operation above 25 C. Note 2: Power dissipation is 600 mW when mounted. Derate at 4.8 mW/C for operation above 25 C. Maximum junction temperature is limited to 150 C. Page 2 January 2000 TOKO, Inc. TK10417 TEST CIRCUIT VCC + Rf 56 k 33 F CS 2.2 F + RS 3 k COUT 470 F + RL 8 + CIN 1.0 F + VIN VOUT Rg 600 Cref 22 F VSTBY January 2000 TOKO, Inc. Page 3 TK10417 TYPICAL PERFORMANCE CHARACTERISTICS TOTAL HARMONIC DISTORTION vs. OUTPUT POWER 10 VCC = 3.6 V GVA = 26 dB f = 1 kHz TOTAL HARMONIC DISTORTION vs. OUTPUT POWER 10 VCC = 5.0 V GVA = 26 dB f = 1 kHz THD (%) 1 RL = 8 THD (%) 1 RL = 8 RL = 32 RL = 16 0.1 1 10 100 1000 POUT (mW) TOTAL HARMONIC DISTORTION vs. FREQUENCY 10 VCC = 3.6 V GVA = 26 dB VIN = 30 mV 0.1 1 RL = 32 RL = 16 10 100 1000 POUT (mW) TOTAL HARMONIC DISTORTION vs. FREQUENCY 10 VCC = 5.0 V GVA = 26 dB VIN = 40 mV 1 THD (%) RL = 8 1 THD (%) RL = 8 RL = 16 RL = 32 0.1 RL = 32 RL = 16 0.1 0.01 0.01 0.1 f (kHz) 1 10 0.01 0.01 0.1 f (kHz) 1 10 OUTPUT POWER vs. SUPPLY VOLTAGE 300 250 POUT (mW) f = 1 kHz THD = 10% RL = 8 RIPPLE REJECTION vs. FREQUENCY 60 50 40 RR (dB) VCC = 3.6 VRIP = 200 mV 200 RL = 16 Cref = 22 F Cref = 10 F Cref = 4.7 F Cref = 1.0 F 150 100 50 0 1 2 3 4 5 6 VCC (V) RL = 32 30 20 10 0 0.01 0.1 1 f (kHz) 10 100 Page 4 January 2000 TOKO, Inc. TK10417 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) SUPPLY CURRENT vs. SUPPLY VOLTAGE 3 DC VOLTAGE AT OUTPUT TERMINAL vs. SUPPLY VOLTAGE 3 VOUT(DC) (V) 2 2 ICC (mA) 1 1 0 1 2 3 4 5 6 VCC (V) 0 1 2 3 4 5 6 VCC (V) SUPPLY CURRENT vs. STANDBY VOLTAGE 3 VCC = 5.0 V CONTROL TERMINAL CURRENT vs. STANDBY VOLTAGE 70 60 50 VCC = 5.0 V ICONT (A) 2 ICC (mA) 40 30 20 10 0 0 1 2 3 4 5 VSTBY (V) 1 0 0 1 2 3 VSTBY (V) OUTPUT VOLTAGE vs. FREQUENCY 5 0 0 -5 VOUT (dB) VOUT (dB) COUT = 1000 F COUT = 470 F COUT = 220 F COUT = 100 F RL = 8 CIN = 1.0 F CS = 2.2 F OUTPUT VOLTAGE vs. FREQUENCY 5 COUT = 470 F -10 -15 -20 -25 -30 0.01 0.1 -5 -10 -15 -20 0.01 COUT = 220 F COUT = 100 F COUT = 47 F RL = 32 CIN = 1.0 F CS = 2.2 F 1 f (kHz) 10 0.1 f (kHz) 1 10 January 2000 TOKO, Inc. Page 5 TK10417 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) POWER DISSIPATION vs. TEMPERATURE 800 700 Mounted POWER DISSIPATION vs. OUTPUT POWER 140 120 100 PD (mW) RL = 32 VCC = 5.0 V 600 PD (mW) 500 Free Air 80 60 VCC = 4.0 V 400 300 200 100 0 -40 -20 0 20 TA (C) POWER DISSIPATION vs. OUTPUT POWER 400 350 300 RL = 16 VCC = 5.0 V VCC = 3.0 V 40 20 0 40 60 80 0 20 40 POUT (mW) POWER DISSIPATION vs. OUTPUT POWER 800 700 600 PD (mW) VCC = 4.0 V RL = 8 VCC = 5.0 V 60 80 PD (mW) 250 200 150 500 400 300 200 100 VCC = 3.0 V VCC = 4.0 V VCC = 3.0 V 100 50 0 0 50 100 150 POUT (mW) 0 0 50 100 150 200 250 POUT (mW) PIN FUNCTION DESCRIPTION PIN NO. 1 SYMBOL STANDBY TERMINAL VOLTAGE (V) VCC 68 k INTERNAL EQUIVALENT CIRCUIT DESCRIPTION Circuit is in the ON mode when Pin 1 is high. Circuit is in the OFF mode with supply current less than 0.1 A when Pin 1 is low (GND level). 75 k Page 6 January 2000 TOKO, Inc. TK10417 PIN FUNCTION DESCRIPTION (CONT.) PIN NO. 2 SYMBOL VIN+ TERMINAL VOLTAGE (V) VOUT INTERNAL EQUIVALENT CIRCUIT VCC DESCRIPTION Amplifier Non-inverting Input Terminal. Vref 100 k VIN- Terminal is connected via 100 k to Vref. 3 VIN- VOUT VCC Amplifier Inverting Input Terminal. Vref 100 k VIN+ 4,6 5 GND VOUT 0V VOUT VCC GND Terminal Output Terminal 7 8 VCC Vref VCC VOUT VCC Power Supply Terminal Reference Voltage Terminal 47 k 43 k Note 1: Terminal voltage with no input signal is calculated by the following equation: 43 k VOUT = (VCC - 0.56) X 43 k + 47 k January 2000 TOKO, Inc. Page 7 TK10417 PACKAGE OUTLINE Marking Information Marking 417 SOT23L-8 0.45 TK10417 8 5 marking 1.0 e 0.8 1 e 0.8 4 +0.15 - 0.05 Recommended Mount Pad 0.1 M 0.3 +0.3 3.5 - 0.1 (3.4) 0.3 2.2 1.4max 1.2 e1 3.0 0 - 0.1 +0.15 - 0.05 0.4 + 0.3 0.15 0.1 3.3 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790 Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 Visit our Internet site at http://www.tokoam.com The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. Page 8 (c) 1999 Toko, Inc. All Rights Reserved IC-231-TK11031 0798O0.0K 15 max January 2000 TOKO, Inc. Printed in the USA |
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