ECRI Microelectronics

HISA01A Isolated Pulse Width Modulation Amplifiers

1. Features

Input DC voltage:30V±2V

Continuous output voltage:10A
Peak output current 20A
TTL Wide square wave signal input
Direction control input signal
Isolated between the input signal and output signal

2. Scope of application of HISA01A Isolated Pulse Width Modulation Amplifier

DC motor drive control
Drive the reactive load

3. Descriptions of HISA01A Isolated Pulse Width Modulation Amplifier

HISA01A isolated pulse width modulation amplifier works in switching mode, it can provide 300W of transmission power for the load; Product needs two power supply: +5V for small control circuit power supply and 30V motor power supply power to the internal H-Bridge. There are two input control signals one is TTL level wide square wave input signal; the other is the DIR direction input signal that controls the direction of rotation of the power. The signal input is isolated from the power output
The product is made of thick film hybrid integrated process, metal sealed shellpackage. Product design and manufacturing to meet the MIL-STD and detailed specifications of the product requirements, the quality level is H-class.

4. Technical Specifications of HISA01A Isolated Pulse Width Modulation Amplifier

Form 1: Rated conditions and Recommended operating conditions

Absolute maximum rating

Operating conditions

Supply voltage VCC:7V

Supply voltage VS:40V

Storage temperature:-60~+150℃

Lead welding temperature(10S)Th:300℃

Peak drive current: IOP:10A

Junction Temperature Tj:150℃

Supply voltage VCC:5V±0.25V

Supply voltage Vs:30V±2V

Operating Temperature(Case)

Tc:-55~+125℃



Form 2 electrical characteristics

No

Character

Conditions

VCC=5V±0.25V

VS=30V±0.3V

-55℃≤Tc≤125℃

RL=10Ω±2Ω

HISA01A

Symbol

min

max

1

Switching frequency

Input PWM square wave signal,DIR direction signal connect“0”or“1”

50

-

HZ

2

Continuous output current

Adjusting RL(load resistor)  to input PWM square wave signal(The duty cycle is 100% high),

DIR direction signal connect“0”or“1”

3

-

A

3

Output square wave voltage amplitude

Input PWM square wave signal,DIR=0,Output positive unipolar square wave

26

30

V

Input PWM square wave signal,DIR=1,Output negative unipolar square wave

26

30

V

4

Efficiency

Input PWM square wave signal(The duty cycle is 100% high),

DIR direction signal connect“0”or“1”

95

-

%

5

Static power consumption

VCC=5V±0.25V VS=30V±0.3V,Without load RL

-

4

W


5. Lead function descriptions of HISA01A Isolated Pulse Width Modulation Amplifier

Lead function descriptions
Fig 2 upward view

Form 3 Pin Designation

No

symbol

Designation

No

symbol

Designation

1

GND1

Input signal Ground

7

SENB

Load current sensing terminal B

2

PWM

Input PWM signal

8

OUTB

Output B

3

VCC

+5V power supply

9

VS

Power Supply

4

DIR

Input direction

control signal

10

NC

NC

5

GND

Output Ground

11

OUTA

Output A

6

NC

NC

12

SENA

Load current sensing terminal A


6. Circuit principle frame diagram of HISA01A Isolated Pulse Width Modulation Amplifier

Circuit principle frame diagram
Fig 3  pin function diagram


7 Typical Connection Diagram of HISA01A Isolated Pulse Width Modulation Amplifier

HISA01A built-in error amplifier can provide gain for brush motor control in applications such as speed ring, the typical connection is shown as below figure.

Typical Connection Diagram
Fig 4  HISA01 Typical connection Diagram

5.1 Power supply bypass:
Power supply should have sufficient bypass capacitors to ensure proper operation, otherwise it may be unstable and reduce efficiency, and the output may be oscillated. Vs power supply should connect an at least 1uF ceramic capacitor paralleled with a low value ESR capacitor, , the capacitance should be at least 10uF/A ; for VCC also requires a  0.1μF ~0.47μF ceramic capacitors paralleled with a low ESR value of 6.8μF ~10μF bypass capacitor, All bypass capacitors should be connected as close as possible to the corresponding power supply root.

5.2 The signal input is isolated from the power output
Input PWM( Pulse Width Modulation) square wave signal ground and DIR direction control signal ground and small signal power supply Vcc power supply ground GND1 connection;Separate form the GND of the Vs to ensure that the signal input is isolated from the power output and that the output is stable and reliable.

5.3 DIR direction control signal input
DIR direction control signal is TTL level signal,to control the direction of the current between the OutA and OutB of the output,thereby controlling the direction of rotation of the motor. The working status of the motor is shown in the form below.

Form 4 working value

PWM wide square wave signal(TTL level)

DIR direction control signal

(TTL level)

OutA

OutB

DC motor working condition

1

0

1

0

Forward

1

1

0

1

Reversal

0

0

0

0

Stop

0

1

0

0

Stop


8. Package Specifications of HISA01A Isolated Pulse Width Modulation Amplifier

Circuit package outlines is shown in Fig 5 .

Package Specifications
Fig 5 upward view

Form 4  Package Outline

Symbol

Data /mm

Min

Typical

Min

A

-

-

7.9

A1

1.9

-

2.7

Φb

0.87

-

1.13

D

-

-

38.80

E

-

-

41.90

e

-

5.08

-

e1

-

30.48

-

L

11.0

-

-

X1

49.26

-

50.26

X

-

-

59.15

ΦP

3.70

-

4.30


Application notes please refer to the appendix, must read it carefully.
Model Series Function Max.Input Vol Max Current
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