ECRI Microelectronics

HMSK4203 High Efficiency Pulse Width Modulation Amplifiers

1.Features

+12V single power supply

Widely Input  voltage range:16V~75V
Continuous output current:10A
Peak output current:23A
Current-limiting protection function
Unipolarity analog signal input, range is 2.5V~9.5V
Built-in +5V output

2. Applications of HMSK4203 High Efficiency Pulse Width Modulation Amplifiers

Brush type motor control
Drive reactive load

3. Description of HMSK4203 High Efficiency PWM Amplifiers

HMSK4203 is a switching mode pulse width modulation power amplifier, it can provide the load 750W transmission power. The product need dual way power supplies: +12V is power supply for small signal control circuit; Motor supply of 75V is power supply for internal H bridge circuit. Unipolarity analog signal input used in controlling motor speed and directional. Meanwhile, internal integrated for +5V linear output voltage.
This product is made of thick film hybrid integrated process, metal sealed package. Product design and manufacturing meet the requirements of MIL-STD and detailed specifications, the quality level is H-class.

4. Technical Specifications of HMSK4203 High Efficiency PWMA

Table 1 Rated conditions and Recommended operating conditions

Absolute maximum rated

Recommended operating conditions

Power supply voltage +VS:75V

Output peak current:23A

Storage temperature:-65~150℃

Work temperature(TC):-55~125℃

Power Supply voltage VCC:12V±0.25V

Power Supply voltage VS:16V~48V

Working temperature range(Shell temperature):-55~125℃


Table 2 Electrical Characteristic

No.

Characteristic

Test conditions

-55℃≤Tc≤125℃

HMSK4203

Unit

Min

Typical

Max

1

On-resistance Rds

ID=10A

-

-

0.07

Ω

2

MOS Leaky pipeline current

V+=75V

-

-

150

mA

3

Switching frequency

-

40

45

50

KHZ

4

Continuous working current

60℃below shell temperature

-

10

-

A

5

Peak working current

-

-

23

-

A

6

Supply +VS

-

16

28

75

V

7

+VCCStatic current

IO=0mA

-

-

50

mA

8

+5V Output

IO=0mA

4.9

5.0

5.1

V

IO=100mA

4.85

5.0

5.15

V

VI=6V

40

50

60

%

9

Duty cycle of output

VI=9.5V

AOUT=100% duty cycle

BOUT=0%  duty cycle

VI=2.5V

AOUT=0%  duty cycle

BOUT=1000%  duty cycle

10

Enabled output

VDIS=“0”

-

-

0.8

V

VDIS=“1”

2.7

-

-

V

11

High-level enabled output

VHEN=“0”

-

-

0.8

V

VHEN=“1”

2.7

-

-

V

12

Working temperature range(Shell temperature TC)

-

-55

-

+125


5. Pin Designations of HMSK4203 High Efficiency Pulse Width Modulation Amplifiers

Pin Designations
Figure 2 Upward view

Table 3 Pin Designations

Pin

Symbol

Designation

Pin

Symbol

Designation

1

VCC

+12V

10

RSENSE B

Load current reaction B

2

+5V OUT

+5V Output

11

Output B

Output B

3

DIS

Enable

12

Output B

Output B

4

HEN

High-level enable

13

+VS

Motor supply

5

Input

Signal input

14

+VS

Motor supply

6

NC

Hang in air

15

Output A

Output A

7

GND

Ground

16

Output A

Output A

8

GND

Ground

17

RSENSE A

Load current reaction A

9

RSENSE B

Load current sense terminal  B

18

RSENSE A

Load current sense terminal A


6. Circuit block diagram of HMSK4203 High Efficiency Pulse Width Modulation Amplifiers

Circuit block diagram

Figure 3  Circuit block diagram

7. Typical Connection Diagram of HMSK4203 High Efficiency Pulse Width Modulation Amplifiers

HMSK4203 connection diagram as shown in Diagram 4.

Typical Connection Diagram

Figure 4  HMSK4203 connection diagram

7.1 Power supply bypass
Power supply VS 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 be added a ceramic capacitor at least 1μF, and then a low ESR value of the bypass capacitor in parallel, the size of selected at least 10μf/A; all bypass capacitors should be connected as close as possible to the corresponding root of power supply.

7.2 +5V Output
The internal integrated voltage regulator circuit, of HMSK4203 can provide +5V output voltage to the external circuit.

8.Package Specifications of HMSK4203 High Efficiency Pulse Width Modulation Amplifiers

Package outlines drawing as shown in fig 5.

Package Specifications
Figure 5: Package outline drawing

Table 4  Package Outline

Symbols

Data /mm

Minimum

Typical

Minimum

A

-

7.4

-

A1

-

1.5

-

Φb

0.66

0.76

0.86

D

-

30.02

-

E

-

25.40

-

e

-

2.54

-

e1

-

22.40

-

L

8.57

8.87

9.17

L1

4.2

4.45

4.70

X1

-

26.67

-

X

-

33.02

-

ΦP

-

3.2

-


Application Notes please refer to the appendix, must read it carefully.
Model Series Function Max.Input Vol Max Current
HSA400 Series Pulse Width Modulation Amplifiers BRUSHED DC MOTOR CONTROLLER 80V 5A
HSA06 Series Pulse Width Modulation Amplifiers BRUSHED DC MOTOR CONTROLLER 100V 30A
HSA03 Series Pulse Width Modulation Amplifiers BRUSHED DC MOTOR CONTROLLER 100V 30A
HSA04 Series Military Pulse Width Modulation Amplifiers BRUSHED DC MOTOR CONTROLLER 200V 20A
HMSK4203 High Efficiency Pulse Width Modulation Amplifiers BRUSHED DC MOTOR CONTROLLER 75V 10A
HSA12 Large Current Pulse Width Modulation Amplifiers BRUSHED DC MOTOR CONTROLLER 200V 20A