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Part: SA04U
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> Audio/Power Amplifiers
Description: PWM Amplifier
Company: Apex Microtechnology Corporation
Datasheet: Download SA04U datasheet File size : 218 kB
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Datasheet text preview:
PULSE WIDTH MODULATION AMPLIFIER
SA04
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM
(800) 546-APEX
(800) 546-2739
FEATURES
· · · · · · WIDE SUPPLY RANGE--16-200V 20A CONTINUOUS TO 85° C CASE 3 PROTECTION CIRCUITS ANALOG OR DIGITAL INPUTS SYNCHRONIZED OR EXTERNAL OSCILLATOR FLEXIBLE FREQUENCY CONTROL
SA04
USA TE9493 11
BeO
APPLICATIONS
· · · · · · MOTORS TO 4HP REACTIVE LOADS LOW FREQUENCY SONAR LARGE PIEZO ELEMENTS OFF-LINE DRIVERS C-D WELD CONTROLLER
EXTERNAL CONNECTIONS
DESCRIPTION
The SA04 is a pulse width amplifier that can supply 4000W to the load. An internal 45kHz oscillator requires no external components. The clock input stage divides the oscillator frequency by two, which provides the basic switching of 22.5 kHz. External oscillators may also be used to lower the switching frequency or to synchronize multiple amplifiers. Current sensing is provided for each half of the bridge giving amplitude and direction data. A shutdown input turns off all four drivers of the H bridge output. A high side current limit and the programmable low side current limit protect the amplifier from shorts to supply or ground in addition to load shorts. The H bridge output MOSFETs are protected from thermal overloads by directly sensing the temperature of the die. The 12pin hermetic MO-127 power package occupies only 3 square inches of board space.
CLK IN CLK OUT +PWM PWM/RAMP GND ILIM/SHDN
1 2 3 4 5 6 TOP VIEW 12 11 10 9 8 7
ISENSE A A OUT * VCC * +VS B OUT I SENSE B
Case tied to pin 5. Allow no current in case. Bypassing of supplies is required. Package is Apex MO-127 (STD). See Outline Dimensions/Packages in Apex data book. If +PWM > RAMP/PWM then A OUT > B OUT. *See text.
BLOCK DIAGRAM AND TYPICAL APPLICATION TORQUE MOTOR DRIVER
Vcc 10 3 +PWM
CURRENT LIMIT PWM
9 +VS
4 PWM/RAMP 470pF 56K CLK OUT 2 OSC ÷2 SHUTDOWN CONTROL 1 5 CONTROL SIGNAL 3/7V 5V GND OUTPUT DRIVERS 8 MOTOR 11 A OUT 1K I SENSE A 12 6 ILIM/SHDN 7 I SENSE B RSENSE B OUT
CLK IN
5K .01µF
RSENSE 1K
5V
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
SA04
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS SUPPLY VOLTAGE, VCC POWER DISSIPATION, internal TEMPERATURE, pin solder - 10s TEMPERATURE, junction2 TEMPERATURE, storage OPERATING TEMPERATURE RANGE, case INPUT VOLTAGE, +PWM INPUT VOLTAGE, PWM INPUT VOLTAGE, ILIM TEST CONDITIONS2 MIN
ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS
200V 16V 300W 300°C 150°C 65 to +150°C 55 to +125°C 0 to +11V 0 to +11V 0 to +10V TYP MAX UNITS
SPECIFICATIONS
PARAMETER CLOCK (CLK) CLK OUT, high level4 CLK OUT, low level4 FREQUENCY RAMP, center voltage RAMP, P-P voltage CLK IN, low level4 CLK IN, high level4 OUTPUT TOTAL RON EFFICIENCY, 10A output SWITCHING FREQUENCY CURRENT, continuous4 CURRENT, peak4 POWER SUPPLY VOLTAGE, VS VOLTAGE, VCC CURRENT, VCC CURRENT, VCC, shutdown CURRENT, VS ILIM/SHUTDOWN TRIP POINT INPUT CURRENT THERMAL3 RESISTANCE, junction to case RESISTANCE, junction to air TEMPERATURE RANGE, case NOTES: 1. 2. 3. 4. 5.
IOUT 1mA IOUT 1mA
4.8 0 44.10 0 3.7
45.00 5 4
5.3 .4 46.90 .9 5.4
V V kHz V V V V
.22 VS = 200V OSC in ÷ 2 85°C case 22.05 20 30 97 22.50 22.95
% kHz A A
Full temperature range Full temperature range IOUT = 0 No Load
165 14
120 15
200 16 80 50 50
V V mA mA mA
90
110 100
mV nA
Full temperature range, for each die Full temperature range Meets full range specifications
.83 12 25 +85
°C/W °C/W °C
Each of the two active output transistors can dissipate 150W. Unless otherwise noted: TC = 25°C, VS, VCC at typical specification. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. For guidance, refer to the heatsink data sheet. Guaranteed but not tested. If 100% duty cycle is not required VS(MIN) = 0V. The SA04 is constructed from MOSFET transistors. ESD handling procedures must be observed. The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or subject to temperatures in excess of 850°C to avoid generating toxic fumes.
CAUTION
APEX MICROTECHNOLOGY CORPORATION · 5980 NORTH SHANNON ROAD · TUCSON, ARIZONA 85741 · USA · APPLICATIONS HOTLINE: 1 (800) 546-2739
TYPICAL PERFORMANCE GRAPHS
SA04
CLOCK LOADING
NORMALIZED FREQUENCY, (%) NORMALIZED FREQUENCY, (%)
INTERNAL POWER DISSIPATION, (W)
POWER DERATING
150 125 100 75 50 25 0 0 25 50 125 75 100 CASE TEMPERATURE, (°C)
EACH ACTIVE OUTPUT TRANSISTOR
CLOCK FREQUENCY OVER TEMP
102.0 101.5 101.0 100.5 100 99.5 99.0 98.5 98.0 25 50 75 100 125 50 25 0 CASE TEMPERATURE, (°C)
100 99 98
97 96 F NOMINAL = 45kHz 95 10K 100K 1M CLOCK LOAD RESISTANCE, ()
REVERSE DIODE
2
TOTAL VOLTAGE DROP
10 CASE TEMPERATURE
TOTAL VOLTAGE DROP, (V)
FLYBACK CURRENT, Isd (A)
10
8 7 6 5 4 3 2
8 6 125°C 4 2 0 0 100°C
85°C
1
8 7 6 5 4 3 2
0.8 1.0 1.2 1.4 1.6 0.6 SOURCE TO DRAIN DIODE VOLTAGE
60°C 25°C 55°C 25°C 5 10 15 20 OUTPUT CURRENT, (A)
NORMALIZED Vcc QUIESCENT CURRENT, (%)
CONTINUOUS OUTPUT
20
DUTY CYCLE VS ANALOG INPUT
100 B OUT 80
DUTY CYCLE, (%)
Vcc QUIESCENT CURRENT
100 95 90 85 80 75
CONTINUOUS AMPS
18
60 40 20 A OUT 0 3
16
14
12 25
NORMALIZED Vcc QUIESCENT CURRENT, (%)
50 75 100 125 150 CASE TEMPERATURE, (°C)
NORMALIZED Vs QUIESCENT CURRENT, (%)
4 5 6 ANALOG INPUT, (V)
7
5 10 15 20 25 SWITCHING FREQUENCY, F (kHz)
115 110 105 100 95 90 85 80 50 25 0 25 50 75 100 125 CASE TEMPERATURE, (°C) SHUTDOWN OPERATION NORMAL OPERATION Vcc = 15V F = 22.5 kHz
140 120 100 80 60 40 20 0 25 50 75 100 125 150 175 200 Vs, (V)
NORMALIZED Vs QUIESCENT CURRENT, (%)
Vcc QUIESCENT CURRENT
Vs QUIESCENT VS VOLTAGE
Vs QUIESCENT VS FREQUENCY
100 Vs = 120V, NO LOAD 80
60
40
20 10 15 20 5 25 SWITCHING FREQUENCY, F (kHz)
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
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