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Details, datasheet, quote on part number:SA50
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| Part: | SA50 |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => Audio/Power Amplifiers |
| Description: | PWM Amplifier |
| Company: | Apex Microtechnology Corporation |
| Datasheet: | Download SA50 datasheet File size : 65 kB |
| Request For quote: | Find where to buy SA50
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Datasheet text preview:
H/BRIDGE MOTOR DRIVER/AMPLIFIER
SA50
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM
(800) 546-APEX
(800) 546-2739
FEATURES
· LOW COST COMPLETE H-BRIDGE · SELF-CONTAINED SMART LOWSIDE/HIGHSIDE DRIVE CIRCUITRY · SINGLE SUPPLY OPERATION · WIDE SUPPLY RANGE: UP TO 80V · 5A CONTINUOUS OUTPUT · HERMETIC SEALED PACKAGE · HIGH EFFICIENCY: 95% · FOUR QUADRANT OPERATION, TORQUE CONTROL CAPABILITY · INTERNAL PWM GENERATION
TYPICAL APPLICATION
APPLICATIONS
· · · · · · BRUSH TYPE MOTOR CONTROL CLASS D SWITCHMODE AMPLIFIER REACTIVE LOADS MAGNETIC COILS (MRI) ACTIVE MAGNETIC BEARING VIBRATION CANCELLING
Vcc
+VS
AUDIO INPUT
SA50 SPEAKER
DESCRIPTION
The SA50 is a pulse width modulation amplifier that can supply 5A continuous current to the load. The full bridge amplifier can be operated over a wide range of supply voltages. All of the drive/control circuitry for the lowside and highside switches are internal to the hybrid. The PWM circuitry is internal as well, leaving the user to only provide an analog signal for the motor speed/direction, or audio signal for switchmode audio amplification. The SA50 is packaged in a space efficient isolated 8-pin TO-3 that can be directly connected to a heatsink.
GND
Vcc
+VS
BLOCK DIAGRAM
+VS
ANALOG INPUT
SA50 DC MOTOR
GND
(LOAD) B VCC (+12V) 45KHz PWM GENERATOR INPUT A
EXTERNAL CONNECTIONS
+VS
3
B OUT
2 1
H-BRIDGE DRIVE CIRCUITRY
RSENSE B RSENSE A (CURRENT)
RSENSE B
A OUT RSENSE A
4
TOP VIEW
5 6 8 7
GND
INPUT
Vcc
GND
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
SA50
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS OUTPUT CURRENT, peak LOGIC SUPPLY VOLTAGE, Vcc POWER DISSIPATION, internal TEMPERATURE, pin solder - 10s TEMPERATURE, junction3 TEMPERATURE, storage OPERATING TEMPERATURE RANGE, case INPUT VOLTAGE
ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS
80V 5 7A 16V 120W1 300°C 150°C 65 to +150°C 65 to +125°C +1 to Vcc 1.5 Vdc
SPECIFICATIONS
PARAMETER INPUT ANALOG INPUT VOLTAGES MOTOR A, B = 50% Duty Cycle MOTOR A = 100% Duty Cycle High MOTOR B = 100% Duty Cycle High OUTPUT Vds (ON) VOLTAGE, each MOSFET TOTAL Ron, both MOSFETs EFFICIENCY, 5A OUTPUT SWITCHING FREQUENCY CURRENT, continuous CURRENT, peak SWITCHING CHARACTERISTICS4 RISE TIME FALL TIME DEAD TIME POWER SUPPLY +VS VOLTAGE5 Vcc VOLTAGE Vcc CURRENT THERMAL
3
TEST CONDITIONS2
MIN
TYP
MAX
UNITS
Vcc = 12V 6 8 4 Vdc Vdc Vdc
Ids = 5A +VS = 80V t = 100 msec +VS = 28V, Vcc = 12V, Ic =2A 40 5 7
1.25 0.5 95 45
1.8 50
Vdc % Khz A A nS nS nS
36 170 100
54 250
+VS Current = Load Current 9.5 Vcc = 12Vdc 12 15
80 15 20
Vdc Vdc mA
RESISTANCE, junction to case RESISTANCE, junction to air TEMPERATURE RANGE, case
Full temp range, for each transistor Full temperature range 25
2.0 30 +85
°C/W °C/W °C
NOTES: 1. Each of the two active output transistors can dissipate 60W. 2. Unless otherwise noted: TC = 25°C, Vcc = 12Vdc. 3. 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. 4. Guaranteed but not tested. 5. Derate to 70V below TC = +25°C.
CAUTION
The SA50 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.
WARNING--AMPLIFIER PROTECTION
The SA50 contains an internal logic chip that turns on and turns off output MOSFET drivers at a certain sequence. Noises or oscillation caused by external wiring inductance, lack of proper power supply bypass capacitors, ground, supply and local internal loops, may be fed back to this logic chip and cause it to turn on one or more MOSFET drivers at the wrong time, thus destroying the SA50. A well laid out PC board with low impedance copper ground plane is necessary for the SA50 to function properly. The Apex EK-SA50 evaluation board is recommended for fast and easy breadboarding of circuits using the SA50.
APEX MICROTECHNOLOGY CORPORATION · 5980 NORTH SHANNON ROAD · TUCSON, ARIZONA 85741 · USA · APPLICATIONS HOTLINE: 1 (800) 546-2739
TYPICAL PERFORMANCE GRAPHS
SA50
INPUT CURRENT VS TEMP
1.05 80
INTERNAL POWER DISSIPATION, (W)
POWER DERATING
60
EFFICIENCY CONTOURS
SUPPLY VOLTAGE, VS (V)
70 60 50 40 30 20 10 0 1 4 2 3 LOAD CURRENT, (A)
90%
INPUT BIAS CURRENT, (µA)
50 40 30 20 10 0 0 EACH OUTPUT TRANSISTOR 25 50 75 100 125 CASE TEMPERATURE, T C (°C)
0.95 0.85 0.75 0.65 0.55 0.45 0.35 0.25 40 20 0 20 40 60 80 100 120 CASE TEMPERATURE, (°C)
97
%
95%
80%
70%
5
OUTPUT RESISTANCE, (NORMALIZED)
OUTPUT RESISTANCE DRIFT
2.5 500
H-BRIDGE FET CAPACITANCE
DRAIN-TO-SOURCE CAP, (pF)
EFFICIENCY VS LOAD CURRENT
100
2 1.5 1 0.5 0 60 20 20 60 100 140 180 JUNCTION TEMPERATURE (°C)
400
VS = 80 V
97
EFFICIENCY, (%)
300 200 100 0 1 2 5 10 20 50 100 DRAIN-TO-SOURCE VOLTAGE, (V)
94 91
VS = 60V VS = 40V
V
88 85
S
=2
0V
1
2 3 4 LOAD CURRENT, (A)
5
VOLTAGE DROP (BOTH MOSFETS)
5 4 3 2 1 0 0 35°C CASE TEMPERATURE 85°C 110°C 60°C
VOLTAGE DROP, (V)
1 2 3 4 OUTPUT CURRENT, (A)
5
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
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