Apex SA56 Datasheet

PULSE WIDTH MODULATION AMPLIFIER

MICROTECHNOLOGY

HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739

PRELIMINARY

FEATURES

• DELIVERS UP TO 5A CONTINUOUS OUTPUT

• OPERATES AT SUPPLY VOLTAGES UP TO 55V

• TTL AND CMOS COMPATIBLE INPUTS

• NO “SHOOT-THROUGH” CURRENT

• THERMAL WARNING FLAG OUTPUT AT 145°C

• THERMAL SHUTDOWN (OUTPUTS OFF) AT 160°C

• INTERNAL CLAMP DIODES

• SHORTED LOAD PROTECTION

• INTERNAL CHARGE PUMP WITH EXTERNAL BOOTSTRAP CAPABILITY

• 45KHZ ONBOARD PWM

SA56

APPLICATIONS

• DC AND STEPPER MOTOR DRIVES

• POSITION AND VELOCITY SERVOMECHANISMS

• FACTORY AUTOMATION ROBOTS

• NUMERICALLY CONTROLLED MACHINERY

• COMPUTER PRINTERS AND PLOTTERS

BLOCK DIAGRAM

DESCRIPTION

The SA56 is a 5A PWM Amplifier designed for motion control applications. The device is built using a multi-technology process which combines bipolar and CMOS control circuitry with DMOS power devices on the same monolithic structure. Ideal for driving DC and stepper motors; the SA56 accomodates peak output currents up to 10A. An innovative circuit which facilitates low-loss sensing of the output current has been implemented. On board PWM oscillator and comparator are used to convert an analog signal into PWM direction and magnitude for motor control applications, or to amplify audio signals using class D amplification.

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

SA56

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

SUPPLY VOLTAGE, VS, Pin 6 60V VOLTAGE at Pins 3, 4, 5, 8 and 9 12V VOLTAGE at Bootstrap Pins (Pins 1 and 11) V PEAK OUTPUT CURRENT (200mS) 10A

OUT

±16V

CONTINUOUS OUTPUT CURRENT (Note 2) 5A POWER DISSIPATION (Note 3) 25W POWER DISSIPATION (T JUNCTION TEMPERATURE, T ESD SUSCEPTIBILITY (Note 4) 1500V STORAGE TEMPERATURE, T LEAD TEMPERATURE (Soldering, 10 sec.) 300°C JUNCTION TERMPERATURE, T VS SUPPLY VOLTAGE +12V to +55V

= 25°C, Free Air) 3W

J(MAX)

STG

150°C –40°C to +150°C –40°C to +125°C

SPECIFICATIONS

PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

SWITCH ON RESISTANCE, R CLAMP DIODE FORWARD DROP, V LOGIC LOW INPUT VOLTAGE, V

LOGIC LOW INPUT CURRENT, I LOGIC HIGH INPUT VOLTAGE, V

LOGIC HIGH INPUT CURRENT, I CURRENT SENSE OUTPUT I

CURRENT SENSE LINEARITY 1A ≤ I UNDERVOLTAGE LOCKOUT Outputs Turn OFF 9 V UNDERVOLTAGE LOCKOUT Outputs Turn ON 11 V WARNING FLAG TEMPERATURE, T FLAG OUTPUT SATURATION VOLTAGE, VF(ON) TJ = TJw, IL = 2 mA 0.15 V FLAG OUTPUT LEAKAGE, IF(OFF) VF = 12V 0.2 10 µA SHUTDOWN TEMPERATURE, T QUIESCENT SUPPLY CURRENT, I OUTPUT TURN-ON DELAY TIME, t

OUTPUT TURN-ON SWITCHING TIME, t

OUTPUT TURN-OFF DELAY TIMES, t OUTPUT TURN-OFF SWITCHING TIME, t

MINIMUM INPUT PULSE WIDTH, t CHARGE PUMP RISE TIME, t

(ON) Output Current = 5A 0.33 0.6 Ω

CLAMP

JSD

S Don

Doff

off

cpr

Clamp Current = 5A 1.2 1.5 V Pins 3, 4, 5 –0.1 V

0.8 V VIN = –0.1V, Pins = 3, 4, 5 –10 µA Pins 3, 4, 5 2 V

12 V

VIN = 12V, Pins = 3, 4, 5 10 µA

= 1A 485 560 µA

OUT

≤ 5A ±6 ±9%

OUT

Pin 9 ≤ 0.8V, IL = 2 mA 145 °C

Outputs Turn OFF 160 175 °C All Logic Inputs Low 13 25 mA Sourcing Outputs, I Sinking Outputs, I Bootstrap Capacitor = 10 nF Sourcing Outputs, I Sinking Outputs, I Sourcing Outputs, I Sinking Outputs, I Bootstrap Capacitor = 10 nF Sourcing Outputs, I Sinking Outputs, I Pins 3, 4, 5 1 µs

= 1A 300 ns

OUT

= 1A 300 ns

OUT

= 1A 100 ns

OUT

= 1A 80 ns

OUT

= 1A 200 ns

OUT

= 1A 200 ns

OUT

= 1A 75 ns

OUT

= 1A 70 ns

OUT

No Bootstrap Capacitor 20 µs

NOTE: These specifications apply for VS = 42V, unless otherwise specified.

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739

This data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. All specifications are subject to change without notice.