Apex SA07 Datasheet

MB309

Q 9317

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60024

SA07

PULSE WIDTH MODULATION AMPLIFIER

MICROTECHNOLOGY

HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX [phone]

FEA TURES

• 500kHz SWITCHING

• FULL BRIDGE OUTPUT 5-40V (80V P-P)

• 5A OUTPUT

•1 IN2 FOOTPRINT

• FAULT PROTECTION

• SHUTDOWN CONTROL

• SYNCHRONIZABLE CLOCK

• HERMETIC PACKAGE

APPLICATIONS

• HIGH FIDELITY AUDIO AMPLIFIER

• BRUSH TYPE MOTOR CONTROL

• VIBRATION CANCELLING AMPLIFIER

DESCRIPTION

The SA07 amplifier is a 40 volt, 500kHz PWM amplifier. The
full bridge output circuit provides 5 amps of continuous drive
current for applications as diverse as high fidelity audio and
brush type motors. Clock output and input pins can be used for
synchronization with other amplifiers or an externally gener­ated clock. An integrator amplifier is provided. Direct access
to the pwm input is provided for connection to digital motion
control circuits. Protection circuits guard against thermal over­loads as well as shorts to supply or ground. The current limit
is programmable with one or two external resistors depending
on the application. A shutdown input disables all output bridge
drivers. The 18 pin steel package is hermetically sealed.

BLOCK DIAGRAM AND
TYPICAL APPLICATION
CONNECTIONS
HIGH FIDELITY
AUDIO

SIGNAL

+PWM

5
6

RAMP/–PWM

CLK OUT

18

CLK IN

17

GND

7

INT OUT

4

INT +

3

INT –

2

THERMAL,

SHORT

CIRCUIT

PROTECT.

18K

100pF

OSC CLK/2

SA07

B
R

I
D
G
E

D
R

I
V
E
R

SA07

EXTERNAL CONNECTIONS

CLK OUT*

R

C

FILTER

FILTER

18
17
16
15
14
13
12
11
10

LOAD

R

1K

R

SHDN

LIMIT

CLK IN
Ilim/SHDN

Isense B

Rlimit*

B OUT
+Vs

A OUT
Isense A

Vcc

Rlimit*

*

5V OUT

–INT
+INT

INT OUT*

+PWM

RAMP/–PWM

GND

NC
NC

Case tied to Pin 7. Allow no current in case. Bypassing of supplies is
required. Package is Apex DIP6. See Outline Dimensions/Packages. If
+PWM > RAMP then A OUT > B OUT.

1
2
3
4
5
6
7
8
9

* See text.

5V OUT

1

+V

S

13

Vcc

10

REG.

A OUT

5V

5V

12

B OUT

14

ILIM/SHDN

16

I SENSE A

11

15

I SENSE B

*

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE [phone] • FAX [phone] • ORDERS [phone] • EMAIL [e-mail]

SA07

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

SUPPLY VOLTAGE, +VS to GND, 10mS surge 60V
SUPPLY VOLTAGE, VCC to GND 16V
OUTPUT CURRENT, peak 7.5A
POWER DISSIPATION, internal 80W
TEMPERATURE, pin solder - 10s 300°C
TEMPERATURE, junction

2

150°C

1

TEMPERATURE, storage –65 to +150°C
OPERATING TEMPERATURE RANGE, case –55 to +125°C
INPUTS –.4/+5.4V

SPECIFICATIONS

PARAMETER TEST CONDITIONS
ERROR AMP, CLOCK REF

3

OFFSET VOLTAGE 10 mV
BIAS CURRENT 50 pA
OFFSET CURRENT 30 pA
COMMON MODE VOLTAGE RANGE 0 3 V
COMMON MODE REJECTION, DC 70 dB
SLEW RATE 12 V/µS
OPEN LOOP GAIN 100 dB
GAIN BANDWIDTH PRODUCT 10 MHz
CLOCK OUT .98 1 1.02 MHz
CLOCK OUT, high level 4.7 5.3 V
CLOCK OUT, low level 0 .2 V
5V OUT LOAD ≤ 5mA 4.988 5 5.012 V

OUTPUT

EFFICIENCY, 5A output VS = 40V 94 %
SWITCHING FREQUENCY 500 kHz
CURRENT, continuous 5 A
CURRENT, peak

3

R

DS(ON)

3

100 ms, 10% duty cycle 7 A

POWER SUPPLY

VOLTAGE, V
VOLTAGE, V
CURRENT, V
CURRENT, V

INPUTS

I

/SHDN, trip point 90 110 mV

LIM

–PWM, +PWM, low level 0 .8 V

CC
S

CC
S

3

Full temperature range 10 12 16 V
Full temperature range 5 40 V
Switching 50 mA
Switching, No Load 90 mA

–PWM, +PWM, high level 2.7 Vcc V
CLOCK IN, low level 0 .3 V
CLOCK IN, high level 3 5.6 V

THERMAL

4

RESISTANCE, junction to case Full temperature range 3.5 °C/W
RESISTANCE, junction to air Full temperature range 15 °C/W
TEMPERATURE RANGE, case Meets full range specifications –25 85 °C

2

MIN TYP MAX UNITS

.55 Ω

NOTES: 1. 40W in each of the two active output transistors on at any one time.

2. Unless otherwise noted: TC = 25°C.

3. Min max values guaranteed but not tested.

4. 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.

CAUTION

The SA07 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.

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: [phone]