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| Advanced Monolithic Systems FEATURES * Wide Input Voltage Operating Range from 2.5V to 60V * Low Standby Current * Current Limiting * Output Switch Current of 1.5A * Output Voltage Adjustable from 1.25 to 40V * Frequency of Operation to 100kHz * Thermal Protection * Enable Input Pin AMS36063 DC-TO-DC CONVERTER CONTROL CIRCUIT PRELIMINARY INFORMATION APPLICATIONS * Step-Up Converter * Step-Down Converter * Voltage Inverting Application * Telephone Circuits * Monitors *Battery Chargers * Portable Equipment GENERAL DESCRIPTION The AMS36063 series is a control circuit containing the basic functions required for DC-to-DC converters. The device consists of an internal temperature compensated reference, a comparator, a controlled duty cycle oscillator with an active current limit circuit, a driver, a high current output switch, a thermal protection circuit and a converter enable input. Designed specifically to be incorporated in Step-Up, Step-Down and Voltage -Inverting applications, the AMS36063 requires a minimum number of external components. The AMS36063 is available in the 8-lead plastic SOIC and 8-lead plastic DIP packages. ORDERING INFORMATION PACKAGE TYPE 8 LEAD PDIP AMS36063P 8 LEAD SOIC AMS36063S OPER. TEMP RANGE -40C to +85C PIN CONNECTIONS 8 LEAD SOIC/ 8 LEAD PDIP SWITCH COLLECTOR SWITCH EMITTER TIMING CAPACITOR GND 1 2 3 4 8 ENABLE 7 IPK SENSE 6 V CC 5 COMPARATOR INVERTING INPUT Top View Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS36063 ABSOLUTE MAXIMUM RATINGS (Note 1) Power Supply Voltage, VCC 60V Comparator Input Voltage Range, VIR -0.3V to +60V Switch Collector Voltage, VC(switch) 60V Switch Emitter Voltage, VE(switch) 60V Switch Collector to Emitter Voltage, VCE(switch) 60V Driver Collector Voltage, VC(driver) Switch Current, ISW Power Dissipation Maximum Junction Temperature Storage Temperature 60V 1.5A (Note 3) +125C -65C to +150C ELECTRICAL CHARACTERISTICS PARAMETER Oscillator Charging Current Discharge Current Voltage Swing Discharge to Charge Current Ratio Current Limit Sense Voltage Output Switch (Note 2) Saturation Voltage, Darlington Connection Saturation Voltage DC Current Gain Collector Off-State Current Comparator Threshold Voltage Threshold Voltage Line Regulation Input Bias Current Total Device ENABLE Low ENABLE Low Supply Current 3.0V VCC 60V 3.0V VCC 60V 3.0V VCC 60V VIN = 0V Electrical Characteristics at VCC = 5.0V, -40C TA +85C, unless otherwise noted. CONDITIONS Min. 5.0V VCC 60V, TA= 25C 5.0V VCC 60V, TA= 25C TA= 25C IPK(sense) = VCC, TA= 25C ICHG = IDISCHG, TA= 25C 250 20 150 AMS36063 Typ. 35 200 0.5 6.0 300 Units Max. 50 250 A A VP-P _ 350 mV ISW = 1.0A, VC(driver) = VC(switch) ISW = 1.0A, IC(driver) = 50mA, (Forced 20) ISW = 1.0A, VCE = 5.0V, TA= 25C VCE = 60V, TA= 25C 1.0 0.45 35 10 1.3 0.7 120 V V nA 1.18 1.25 0.04 40 1.32 0.2 400 V mV/V nA 2.15 2.50 2.26 2.4 1.90 V V 5.0V VCC 60V, IPK(sense) = VCC , CT = 0.001F, V pin 5 > Vth, Pin 2 = Gnd, Remaining pins open 4.0 mA Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. For guaranteed performance limits and associated test conditions, see the Electrical Characteristics tables. Note 2: To minimize power dissipation, low duty cycle pulse testing is used. Note 3: Power dissipation at TA = 25C is equal to 1.0W for the 8 lead P DIP package and 625mW for the SO-8 package. For operation at temperatures above TA = 25C derate the power dissipation at 10mW/C. Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS36063 FUNCTIONAL BLOCK DIAGRAM ENABLE 8 S R 180 170 Q Q2 Q1 1 SWITCH COLLECTOR IPK SENSE 7 IPK OSC 2 SWITCH EMITTER CT 3 TIMING CAPACITOR VCC 6 + COMP. 1.25V REF REG COMPARATOR INVERTING INPUT 5 4 GND TYPICAL PERFORMANCE CHARACTERISTICS Output Switch On-Off Time vs Oscillator Timing Capacitor OUTPUT SWITCH ON-OFF TIME (s) 1000 SUPPLY CURRENT (mA) V CC = 5.0V IPK(sense) = V CC Pin 5 = GND Standby Supply Current vs Supply Voltage 3.2 CT= 0.001 F IPK(sense) = V CC Pin 2 = GND 2.4 100 1.6 10 0.8 1.0 100 0.1 1.0 10 OSCILLATOR TIMING CAPACITOR 0 0 5.0 10 20 30 40 50 SUPPLY VOLTAGE (V) 60 Emitter-Follower Configuration Output Switch Saturation Voltage vs Emitter Current 1.6 SATURATION VOLTAGE (V) 1.5 1.4 1.3 1.2 1.1 1.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 EMITTER CURRENT (A) SATURATION VOLTAGE (V) V CC = 5.0V Pins 1,7 = V CC Pin 3,5 = GND Common-Emitter Configuration Output Switch Saturation Voltage vs Collector Current 1.2 1.0 0.8 0.6 0.4 0.2 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 COLLECTOR CURRENT (A) VCC = 5.0V Pin 7 = V CC Pin 2,3,5 = GND Darlington Connection Forced Beta 20 Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS36063 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 8 LEAD SOIC PLASTIC PACKAGE (S) 0.189-0.197* (4.801-5.004) 8 7 6 5 0.228-0.244 (5.791-6.197) 0.150-0.157** (3.810-3.988) 1 2 3 4 0.053-0.069 (1.346-1.752) 0.004-0.010 (0.101-0.254) 0.008-0.010 (0.203-0.254) 0.010-0.020 x 45 (0.254-0.508) 0-8 TYP 0.014-0.019 (0.355-0.483) 0.050 (1.270) TYP 0.016-0.050 (0.406-1.270) S (SO-8 ) AMS DRW# 042293 *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 8 LEAD PLASTIC DIP PACKAGE (P) 0.400* (10.160) MAX 8 7 6 5 0.2550.015* (6.4770.381) 1 2 3 4 0.045-0.065 (1.143-1.651) 0.1300.005 (3.3020.127) 0.300-0.325 (7.620-8.255) 0.065 (1.651) TYP 0.005 (0.127) MIN 0.1000.010 (2.5400.254) 0.125 (3.175) MIN 0.0180.003 (0.4570.076) 0.015 (0.380) MIN 0.009-0.015 (0.229-0.381) 0.325 +0.025 -0.015 (8.255 +0.635 -0.381 ) P (8L PDIP ) AMS DRW# 042294 *DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTUSIONS. MOLD FLASH OR PROTUSIONS SHALL NOT EXCEED 0.010" (0.254mm) Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 |
Price & Availability of AMS36063S
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