L165 3A POWER OPERATIONAL AMPLIFIER

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1 3A POWER OPERATIONAL AMPLIFIER OUTPUT CURRENT UP TO 3A LARGE COMMON-MODE AND DIFFERENTIAL MODE RANGES SOA PROTECTION THERMAL PROTECTION ± 18V SUPPLY DESCRIPTION The L165 is a monolithic integrated circuit in Pentawatt package, intended for use as power operational amplifier in a wide range of applications, including servo amplifiers and power supplies. The high gain and high output power capability provide superiore performance wherever an operational amplifier/power booster combination is required. Pentawatt V ORDERING NUMBER: L165V APPLICATION CIRCUITS Figure 1. Gain > 10. Figure 2. Unity gain configuration. July /9

2 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V S Supply voltage ± 18 V V 5 V 4 Upper power transistor V CE 36 V V 4 V 3 Lower power transistor V CE 36 V V i Input voltage V S V j Differential input voltage ± 15 V I o Peak output current (internally limited) 3.5 A P tot Power dissipation at T case = 90 C 20 W T stg, T j Storage and junction temperature -40 to 150 C PIN CONNECTION (Top view) SCHEMATIC DIAGRAM THERMAL DATA Symbol Parameter Value Unit R th-j-case Thermal resistance junction-case max 3 C/W 2/9

3 ELECTRICAL CHARACTERISTCS (V S = ± 15 V, T j = 25 C unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit V S Supply Voltage ± 6 ± 18 V I d Quiescent Drain Current V S = ±18 V ma I b Input Bias Current µa V os Input Offset Voltage ± 2 ± 10 mv I os Input Offset Current ± 20 ± 200 na SR Slew-rate G v = 10 8 V/µs G v = 1 ( ) 6 V o Output Voltage Swing f = 1kHz Ip = 0.3A I p = 3A f = 10kHz Ip = 0.3A I p = 3A R Input Resistance (pin 1) f = 1 KHz KΩ G v Voltage Gain (open loop) 80 db e N Input Noise Voltage B = 10 to Hz 2 µv i N Input Noise Current f = 1 KHz 100 pa CMR Common-mode Rejection R g 10 KΩ; G V = 30 db 70 db SVR Supply Voltage Rejection R g = 22 KΩ; V ripple = 0.5 Vrms f ripple = 100 Hz G v = 10 G v = 100 Efficiency f = 1 khz; R L = 4Ω I p = 1.6 A; P o = 5W I p = 1.6 A; P o = 18W T sd Thermal Shut-down Case Temperature Vpp Vpp db db P tot = 12 W 110 C P tot = 6 W 130 C % % 3/9

4 Figure 3. Open loop frequency response. Figure 6. Maximum output current vs. voltage [VCE] across each output transistor. Figure 4. Closed loop frequency response (circuit of figure 2). Figure 7. Safe operating area and collector characteristics of the protected power transistor. Figure 5. Large signal frequency response. Figure 8. Maximum allowable power dissipation vs. ambient temperature. 4/9

5 Figure 9. Bidirectional DC motor control with TTL/CMOS/µP compatible inputs. Must be V S2 V S1 ; E1, E2 = logic inputs; V S1 = logic supply voltage Figure 10. Motor current control circuit with external power transistors (I motor > 3.5A). D1 to D4: V F I = 4A t rr 500ns Note : The inputvoltage level is compatible with L291 (5-BIT D/A converter). The transfer function is: I M V i = R4 Rx R3 5/9

6 Figure 11. High current tracking regulator. A: for ± 18 V i ± 32 Note: V z must be chosen in order to verify 2 V i - V z 36V B: for V i ±18V Figure 12. Bidirectional speed control of DC motor (Compensation networks not shown). D1 to D4: V F I = 2A t rr 500ns 6/9

7 Figure 13. Split power supply. Figure 14. Power squarewave oscillator with independent adjustments for frequency and duty-cycle. P1 : duty-cycle adjust P2 : frequency adjust (f = 700 Hz with C1 = 10 nf, P2 = 100KΩ, f = 25 Hz with C1 = 10 nf, P2 = 0) 7/9

8 DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A C D D E E F F G G H H L L L L L L L L L L M M V4 40 (typ.) V5 90 (typ.) Dia OUTLINE AND MECHANICAL DATA Weight: 2.00gr Pentawatt V L L1 E M1 A C L5 D1 L2 L3 D V5 M H2 V4 E F E1 H3 G G1 Dia. L9 L10 L4 F1 H2 F V4 L7 L6 RESIN BETWEEN LEADS PENTVME /9

9 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. STMicroelectronics acknowledges the trademarks of all companies referred to in this document. The ST logo is a registered trademark of STMicroelectronics 2003 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. 9/9

L165 3A POWER OPERATIONAL AMPLIFIER

L165 3A POWER OPERATIONAL AMPLIFIER 3A POWER OPERATIONAL AMPLIFIER OUTPUT CURRENT UP TO 3A LARGE COMMON-MODE AND DIFFERENTIAL MODE RANGES SOA PROTECTION THERMAL PROTECTION ± 18V SUPPLY Pentawatt DESCRIPTION The L165 is a monolithic integrated