Apex SA03 Datasheet

SA03
USA BeO
TE949311
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEATURES
• WIDE SUPPLY RANGE—16-100V
• 3 PROTECTION CIRCUITS
• ANALOG OR DIGITAL INPUTS
• SYNCHRONIZED OR EXTERNAL OSCILLATOR
• FLEXIBLE FREQUENCY CONTROL
APPLICATIONS
• MOTORS TO 4HP
• REACTIVE LOADS
• LOW FREQUENCY SONAR
• LARGE PIEZO ELEMENTS
• OFF-LINE DRIVERS
• C-D WELD CONTROLLER
PULSE WIDTH MODULATION AMPLIFIER
SA03
EXTERNAL CONNECTIONS
DESCRIPTION
The SA03 is a pulse width amplifier that can supply 3000W 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.
BLOCK DIAGRAM AND TYPICAL APPLICATION
Vcc
10
+PWM
3
CLK OUT
CLK IN
GND
4
470pF
56K
2
1
5
÷2OSC
CONTROL
SIGNAL
3/7V
–PWM/RAMP
CLK IN
CLK OUT
+PWM
–PWM/RAMP
GND
1 2 3
TOP
TOP
VIEW
VIEW
4 5 6
12 11 10
*
9 8 7
ILIM/SHDN
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.
CURRENT
LIMIT
PWM
OUTPUT
DRIVERS
SHUTDOWN
CONTROL
9
+V
B OUT
8
11
A OUT
I SENSE A
12
6
ILIM/SHDN
7
I SENSE B
S
MOTOR
1K
5K
RSENSE
.01µF
1K
RSENSE
ISENSE A A OUT
*
VCC
+VS
B OUT I SENSE B
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
5V
5V
SA03
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +V SUPPLY VOLTAGE, V POWER DISSIPATION, internal 300W TEMPERATURE, pin solder - 10s 300°C TEMPERATURE, junction
S
CC
2
100V 16V
150°C TEMPERATURE, storage –65 to +150°C OPERATING TEMPERATURE RANGE, case –55 to +125°C INPUT VOLTAGE, +PWM 0 to +11V INPUT VOLTAGE, –PWM 0 to +11V
SPECIFICATIONS
PARAMETER TEST CONDITIONS
INPUT VOLTAGE, I
2
LIM
0 to +10V
MIN TYP MAX UNITS
CLOCK (CLK)
CLK OUT, high level CLK OUT, low level FREQUENCY 44 45 46 kHz
4
4
I
1mA 4.8 5.3 V
OUT
I
1mA 0 .4 V
OUT
RAMP, center voltage 5V RAMP, P-P voltage 4V CLK IN, low level CLK IN, high level
4
4
0.9V
3.7 5.4 V
OUTPUT
TOTAL R EFFICIENCY, 10A output VS = 100V 97 % SWITCHING FREQUENCY OSC in ÷ 2 22 22.5 23 kHz CURRENT, continuous CURRENT, peak
ON
4
4
60°C case 30 A
40 A
.16
POWER SUPPLY
VOLTAGE, V VOLTAGE, V CURRENT, V CURRENT, V CURRENT, V
I
/SHUTDOWN
LIM
S CC
CC
shutdown 50 mA
CC, S
Full temperature range 16 Full temperature range 14 15 16 V I
= 0 80 mA
OUT
No Load 50 mA
5
60 100 V
TRIP POINT 90 110 mV INPUT CURRENT 100 nA
THERMAL
3
RESISTANCE, junction to case Full temperature range, for each die .83 °C/W RESISTANCE, junction to air Full temperature range 12 °C/W TEMPERATURE RANGE, case Meets full range specifications –25 +85 °C
NOTES: 1. Each of the two active output transistors can dissipate 150W.
2. Unless otherwise noted: TC = 25°C, VS, VCC at typical specification.
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. If 100% duty cycle is not required V
CAUTION
The SA03 is constructed from MOSFET transistors. ESD handling procedures must be observed.
S(MIN)
= 0V.
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.
APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
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