|
|
Part: SA18
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> Audio/Power Amplifiers
Description: PWM Amplifier
Company: Apex Microtechnology Corporation
Datasheet: Download SA18 datasheet File size : 70 kB
Request For quote: Find where to buy SA18
Datasheet text preview:
PULSE WIDTH MODULATION AMPLIFIER
SA18
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM
(800) 546-APEX
(800) 546-2739
FEATURES
· · · · · · HALF BRIDGE IGBT OUTPUT WIDE SUPPLY RANGE--16-500V 20A TO 100° C CASE 3 PROTECTION CIRCUITS SYNCHRONIZED OR EXTERNAL OSCILLATOR FLEXIBLE FREQUENCY CONTROL
SA18
USA TE9493 11
BeO
APPLICATIONS
· · · · · · MOTORS REACTIVE LOADS LOW FREQUENCY SONAR LARGE PIEZO ELEMENTS OFF-LINE DRIVERS C-D WELD CONTROLLER
EXTERNAL CONNECTIONS
DESCRIPTION
The SA18 is a pulse width modulation amplifier that can supply 10KW to the load. An internal oscillator requires no external components. The clock input stage divides the oscillator frequency by two, which provides the switching frequency of 22.5 kHz. External oscillators may also be used to lower the switching frequency or to synchronize multiple amplifiers. A shutdown input turns off both drivers of the half bridge output. A high side current limit protects the amplifier from shorts to ground in addition to load shorts. The output IGBTs are protected from thermal overloads by directly sensing the temperature of the die. The 12-pin hermetic MO-127 power package occupies only 3 square inches of board space.
CLK IN CLK OUT +PWM FLAG SIG GND SHDN
1 2 3 4 5 6 TOP VIEW 12 11 10 9 8 7
NC NC * VCC * +VS OUT PWR GND
BLOCK DIAGRAM AND TYPICAL APPLICATION VOLTAGE CONTROLLED VOLTAGE SOURCE
Case tied to pin 5. Allow no current in case. Bypassing of supplies is required. Package is Apex MO127 (STD). See Outline Dimensions/Packages in Apex data book. As +PWM goes more positive, OUT duty cycle decreases. *See text.
Vcc 10 +PWM 3
CURRENT LIMIT PWM
9 +VS
4 FLAG 470pF 10V P-P OUT OUTPUT DRIVERS 8 12 NC NC CLK IN 1 5 CONTROL SIGNAL 3/7V 5V SIG GND SHUTDOWN CONTROL 11 6 SHDN 7 PWR GND RSENSE 5K .01µF LOAD
56K
CLK OUT 2 OSC
÷2
5V
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
SA18
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS SUPPLY VOLTAGE, VCC POWER DISSIPATION, internal1 TEMPERATURE, pin solder - 10s TEMPERATURE, junction2 TEMPERATURE, storage OPERATING TEMPERATURE RANGE, case INPUT VOLTAGE, +PWM INPUT VOLTAGE, SHDN TEST CONDITIONS2 MIN
ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS
SPECIFICATIONS
PARAMETER CLOCK (CLK) CLK OUT, high level4 CLK OUT, low level4 CLK IN, low level4 CLK IN, high level4 FREQUENCY ANALOG INPUT (+PWM) center voltage P-P voltage FLAG FLAG, high level FLAG, low level OUTPUT TOTAL DROP EFFICIENCY, 20A 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
500V 16V 125W 300°C 150°C 65 to +150°C 55 to +125°C 0 TO +11V 0 TO +11V TYP MAX UNITS
IOUT 1mA IOUT 1mA
4.8 0 0 3.7 44.10
45.00 5 4 10 0
5.3 .4 .9 5.4 45.9
V V V V kHz V V V V
0/100% modulation
I = 20A VS = 380V OSC in ÷ 2 100°C case
2.7 22.05 20 28 98 22.50 22.95
V % kHz A A
15 14 IOUT = 0 No Load
240 15
500 16 80 50 45
V V mA mA mA
90
110 100
mV nA
1 12
°C/W °C/W
NOTES: 1. 2. 3. 4.
Each of the two output transistors can dissipate 125W, but only one is on at any time. 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.
CAUTION
The SA18 is constructed from static sensitive components. 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.
A P E X MICROTECHNOLOGY CORPORATION · 5980 NORTH SHANNON ROAD · TUCSON, ARIZONA 85741 · USA · APPLICATIONS HOTLINE: 1 (800) 546-2739 APEX MICROTECHNOLOGY CORPORATION · 5980 NORTH SHANNON ROAD · TUCSON, ARIZONA 85741 · USA · APPLICATIONS HOTLINE: 1 (800) 546-2739
TYPICAL PERFORMANCE GRAPHS
SA18
CLOCK LOADING
NORMALIZED FREQUENCY, (%) NORMALIZED FREQUENCY, (%)
20 100 99 98
INTERNAL POWER DISSIPATION, (W)
POWER DERATING
125 100 75 50 25 0
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 50 25 0 25 50 75 100 125 CASE TEMPERATURE, (°C)
97 96 F NOMINAL = 45kHz 95 100K 1M 10K CLOCK LOAD RESISTANCE, ()
0
75 100 25 50 125 CASE TEMPERATURE, (°C)
REVERSE DIODE
20 3
TOTAL VOLTAGE DROP
CASE TEMPERATURE
FORWARD CURRENT, (A)
TOTAL VOLTAGE DROP, (V)
16 12 Tc = 100°C 8 4 0 1.0 1.5 2.0 2.5 3.0 0.5 DIODE FORWARD VOLTAGE DROP, (V) Tc = 25°C
2.5 100°C 2 25°C
1.5
1 0 4 8 12 16 OUTPUT CURRENT, I(A)
CONTINUOUS AMPS
20
DUTY CYCLE VS ANALOG INPUT
100 80
NORMALIZED QUIESCENT CURRENT, (%)
Vcc QUIESCENT CURRENT
100
CONTINUOUS AMPS, (A)
18
DUTY CYCLE, (%)
96
16 14 12 10 25
60 40 20 OUT 0 3
92
88
84
50 75 100 125 CASE TEMPERATURE, (°C)
4 5 6 ANALOG INPUT, (V)
7
5 10 15 20 25 SWITCHING FREQUENCY, F (kHz)
NORMALIZED Vcc QUIESCENT CURRENT, (%)
NORMALIZED Vs QUIESCENT CURRENT, (%)
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
150
NORMALIZED Vs QUIESCENT CURRENT, (%)
Vcc QUIESCENT CURRENT
Vs QUIESCENT VS VOLTAGE
Vs QUIESCENT VS FREQUENCY
100 90 80 70 60 50
125
100
75
50 0
100
200 300 Vs, (V)
400
500
5 25 10 15 20 SWITCHING FREQUENCY, F (kHz)
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
Others parts begin by sa
SA-1 SA-2 SA-3 SA-4 SA-5 SA-6 SA-7 SA-8 SA-9 SA-10 SA-11 SA-12 SA-13 SA-14 SA-15 SA-16 SA-17 SA-18 SA-19 SA-20 SA-21 SA-22 SA-23 SA-24 SA-25 SA-26 SA-27 SA-28 SA-29 SA-30
|
|
|
