ECRI Microelectronics

HISA01-B Isolated Pulse Width Modulation Amplifier

1. Features

Input DC voltage:28V±1V

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 signa

2. Scope of application of HISA01-B Isolated Pulse Width Modulation Amplifier

DC motor drive control
Drive the reactive load

3. Descriptions of HISA01-B Isolated Pulse Width Modulation Amplifier

HISA01-B isolated pulse width modulation amplifier works in switching mode, it can pro-vide 280W of transmission power for the load; Products need two power supply: +5V for small control circuit power supply; 28V motor power supplies power to the internal H-Bridge. The output signal of the output circuit is two, 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 series of the products are made of thick film hybrid integrated process, metal sealed shell package. 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 HISA01-B Isolated Pulse Width Modulation Amplifier

Form 1: Rated conditions and Recommended operating conditions

Absolute maximum rating

Recommended operating conditions

Supply voltage VCC:7V

Supply voltage VS:40V

Storage temperature:-60~+150℃

Lead welding temperature(10S)Th:300℃

Junction Temperature Tj:150℃

Supply voltage VCC:5V±0.25V

Supply voltage Vs:28V±1V

Operating Temperature(Case):-55~+125℃



Form 2 Electrical characteristics

No

Character

Conditions

(Unless other wise)

VCC=5V±0.25V

VS=28V±1V

-55℃≤Tc≤125℃

RL=10Ω±2Ω

HISA01-B

Symbol

Min

Max

1

Switching frequency

Input square wave signal to PWM terminal,DIR direction signal access“0”or“1”

50

-

HZ

2

Continuous output current

RL=2.4Ωinput high level to PWMterminal,DIR direction signal connect“0”or“1”

10

-

A

3

Peak Drive current

RL=1.15Ωinput high levelto PWM terminal,DIR direction signal connect“0”or“1”

20

-

A

4

Output square wave voltage amplitude

Input square wave signal to PWM terminal . DIR=“0”or“1”

25

35

V

5

Efficiency

Input high level to PWM terminal , DIR direction signal connect“0”or“1”

95

-

%

6

Static power consumption

VCC=5V,VS=28V±1V,Full load

-

4

W

7

Disable enable high level

Input high level to PWM terminal , DIR direction signal connect“0”or“1”

3.6

-

V

8

Disable enable low level

Input high level to PWM terminal , DIR direction signal connect“0”or“1”

-

0.8

V


5. Lead function descriptions of HISA01-B Isolated Pulse Width Modulation Amplifier


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 HISA01-B Isolated Pulse Width Modulation Amplifier


Fig 3  pin function diagram

7. Typical Connection Diagram of HISA01-B Isolated Pulse Width Modulation Amplifier


 Typical Connection Diagram

Fig 4  HISA01-B Typical connection Diagram

7.1 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  0.1uF~0.47uF ceramic capacitors paralleled with a low ESR value of 6.8uF~10uF  bypass capacitor, All bypass capacitors should be connected as close as possible to the corresponding power supply root.

7.2 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 5V power supply common ground GNDI connection;Separate form the GNDo of the 28V motor supply to ensure that the signal input is isolated from the power output and that the output is stable and reliable.

7.3 DIR direction control signal input
DIR direction control signal is TTL level signal,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 HISA01-B 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

Max

A

6.90

-

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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