TK10417 POWER AMPLIFIER FEATURES APPLICATIONS ■ ■ ■ ■ ■ ■ ■ Speaker Driver for Portable Equipment ■ Headphone Driver ■ Toys 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 DESCRIPTION TK10417M 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. STANDBY Vref VIN+ VCC VIN- GND 01S The TK10417M is available in the very small SOT23L-8 surface mount package. GND VOUT BLOCK DIAGRAM - ORDERING INFORMATION TK10417M + 47 kΩ 100 kΩ Tape/Reel Code 43 kΩ Logic High: Active TAPE/REEL CODE TL: Tape Left January 2000 TOKO, Inc. 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 Ω, COUT = 470 µF, TA = 25 °C, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS VCC = 3.6 V, RL = ∞ 2.0 3.0 mA VCC = 5.0 V, RL = ∞ 2.1 3.2 mA ICC Supply Current ISTBY Standby Supply Current Pin 1 = GND, RL = ∞ 0.1 1.0 µA ICONT Control Terminal Current Pin 1 = VCC = 3.6 V, Sink Current 42 100 µA VTHL Threshold Voltage (High to Low) Pin 1, Operation to Standby 0.0 0.5 V VTLH Threshold Voltage (Low to High) Pin 1, Standby to Operation 1.8 VCC V GVA Voltage Gain 26.0 27.0 dB 1.0 % Total Harmonic Distortion VCC = 3.6 V, POUT = 40 mW 0.5 THD VCC = 5.0 V, POUT = 90 mW 0.5 1.0 % POUT(MAX) Maximum Output Power RR Ripple Rejection Ratio VOUT(NOISE) Output Noise Voltage VOUT(DC) DC Voltage at Output Terminal 24.0 VCC = 3.6 V, THD ≤ 10% 60 90 mW VCC = 5.0 V, THD ≤ 10% 140 200 mW Cref = 22 µF, f = 1 kHz 45.0 dB Rg = 600 Ω, VIN = 0 V 100 500 µV 1.40 1.60 V 1.20 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 kΩ CS 2.2 µF RS 3 kΩ COUT 470 µF + CIN 1.0 µF VOUT + RL 8Ω + VIN 33 µF Rg 600 Ω + Cref 22 µF January 2000 TOKO, Inc. VSTBY Page 3 TK10417 TYPICAL PERFORMANCE CHARACTERISTICS TOTAL HARMONIC DISTORTION vs. OUTPUT POWER TOTAL HARMONIC DISTORTION vs. OUTPUT POWER 10 10 VCC = 5.0 V GVA = 26 dB f = 1 kHz THD (%) THD (%) VCC = 3.6 V GVA = 26 dB f = 1 kHz 1 1 RL = 8 Ω RL = 8 Ω RL = 16 Ω RL = 32 Ω 0.1 1 10 100 1000 1 10 1000 POUT (mW) TOTAL HARMONIC DISTORTION vs. FREQUENCY TOTAL HARMONIC DISTORTION vs. FREQUENCY 10 VCC = 3.6 V GVA = 26 dB VIN = 30 mV VCC = 5.0 V GVA = 26 dB VIN = 40 mV 1 THD (%) THD (%) 1 RL = 8 Ω RL = 16 Ω RL = 32 Ω 0.1 0.01 0.01 0.1 1 RL = 8 Ω RL = 16 Ω 0.1 RL = 32 Ω 0.01 0.01 10 0.1 1 10 f (kHz) f (kHz) OUTPUT POWER vs. SUPPLY VOLTAGE RIPPLE REJECTION vs. FREQUENCY 60 300 f = 1 kHz THD = 10% 250 RL = 8 Ω 50 VCC = 3.6 VRIP = 200 mV 40 200 RL = 16 Ω 150 RR (dB) POUT (mW) 100 POUT (mW) 10 Cref = 22 µF Cref = 10 µF 30 Cref = 4.7 µF Cref = 1.0 µF 20 100 RL = 32 Ω 50 10 0 1 2 3 4 VCC (V) Page 4 RL = 16 Ω RL = 32 Ω 0.1 5 6 0 0.01 0.1 1 10 100 f (kHz) January 2000 TOKO, Inc. TK10417 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) DC VOLTAGE AT OUTPUT TERMINAL vs. SUPPLY VOLTAGE 3 SUPPLY CURRENT vs. SUPPLY VOLTAGE VOUT(DC) (V) 3 ICC (mA) 2 1 1 0 0 1 2 3 4 5 1 6 2 3 4 5 VCC (V) VCC (V) CONTROL TERMINAL CURRENT vs. STANDBY VOLTAGE SUPPLY CURRENT vs. STANDBY VOLTAGE VCC = 5.0 V VCC = 5.0 V 60 6 3 70 50 2 ICC (mA) ICONT (µA) 2 40 30 1 20 10 0 0 0 1 2 3 4 0 5 1 2 3 VSTBY (V) VSTBY (V) OUTPUT VOLTAGE vs. FREQUENCY OUTPUT VOLTAGE vs. FREQUENCY 5 5 0 0 COUT = 1000 µF -10 COUT = 470 µF -15 COUT = 220 µF COUT = 470 µF -5 COUT = 220 µF COUT = 100 µF -10 COUT = 100 µF -20 COUT = 47 µF RL = 8 Ω CIN = 1.0 µF CS = 2.2 µF -25 -30 0.01 VOUT (dB) VOUT (dB) -5 0.1 1 f (kHz) January 2000 TOKO, Inc. RL = 32 Ω CIN = 1.0 µF CS = 2.2 µF -15 10 -20 0.01 0.1 1 10 f (kHz) Page 5 TK10417 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) POWER DISSIPATION vs. OUTPUT POWER POWER DISSIPATION vs. TEMPERATURE 140 800 700 RL = 32 Ω 120 VCC = 5.0 V Mounted 100 500 PD (mW) PD (mW) 600 Free Air 400 300 VCC = 4.0 V 60 VCC = 3.0 V 40 200 20 100 0 -40 0 -20 0 20 40 60 0 80 40 60 POUT (mW) POWER DISSIPATION vs. OUTPUT POWER POWER DISSIPATION vs. OUTPUT POWER 80 800 RL = 16 Ω 350 20 TA (°C) 400 VCC = 5.0 V RL = 8 Ω 700 300 VCC = 5.0 V 600 250 VCC = 4.0 V PD (mW) PD (mW) 80 200 150 500 400 VCC = 4.0 V 300 VCC = 3.0 V 100 200 50 100 0 0 50 100 VCC = 3.0 V 0 150 0 POUT (mW) 50 100 150 200 250 POUT (mW) PIN FUNCTION DESCRIPTION PIN NO. SYMBOL TERMINAL VOLTAGE (V) 1 STANDBY VCC INTERNAL EQUIVALENT CIRCUIT 68 k 75 k Page 6 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 µA when Pin 1 is low (GND level). January 2000 TOKO, Inc. TK10417 PIN FUNCTION DESCRIPTION (CONT.) PIN NO. SYMBOL TERMINAL VOLTAGE (V) 2 VIN+ VOUT INTERNAL EQUIVALENT CIRCUIT VCC Amplifier Non-inverting Input Terminal. Vref 100 kΩ VIN- 3 VIN- VOUT VCC DESCRIPTION Terminal is connected via 100 kΩ to Vref. Amplifier Inverting Input Terminal. Vref 100 kΩ VIN+ 4,6 GND 0V 5 VOUT VOUT 7 VCC VCC 8 Vref VOUT GND Terminal Output Terminal VCC Power Supply Terminal Reference Voltage Terminal VCC 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 SOT23L-8 0.45 Marking 417 5 1.0 8 TK10417 e1 3.0 marking e 0.8 1 4 Recommended Mount Pad +0.15 - 0.05 e 0.8 0.3 0.1 M +0.3 3.5 - 0.1 2.2 15 max 1.2 +0.15 - 0.05 0 - 0.1 0.1 0.4 0.15 1.4max 0.3 (3.4) + 0.3 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 © 1999 Toko, Inc. All Rights Reserved January 2000 TOKO, Inc. IC-231-TK11031 0798O0.0K Printed in the USA