Data Sheet

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER

AM4962

Apr. 2011

Rev. 1. 2

BCD Semiconductor Manufacturing Limited

11

0

10

203040

506070

8090

100

0

20

40

60

80

100

Max. Duty Cycle

Input PWM Duty Cycle (%)

Min. Duty Cycle

Slope K

OUT2

OUT1

VCC

GND

VMIN

CT

PWM

RADJ

CF

HIN-

FG

HB

RD

HIN+

Hall

AM4962

D1

C1

1

μF

VCC

L1

C3

1

μF

C2

0.47

μF

1 (1)

PGND

V+

2 (3)

3 (4)

4 (5)

5 (6)

6 (7)

7 (8)

8 (9)

9 (10)

10 (11)

11 (12)

12 (13)

13 (14)

14 (15)

Typical Application (Note 4)

Figure 10

Application 1 (Default)

R1

R2

D3

OUT2

OUT1

VCC

GND

VMIN

CT

PWM

RADJ

CF

HIN-

FG

HB

RD

HIN+

Hall

AM4962

D1

C1

1 F

VCC

L1

C3

1 F

C2

0.47 F

1 (1)

PGND

R3

R4

V+

R5

R6

V+

2 (3)

3 (4)

4 (5)

5 (6)

6 (7)

7 (8)

8 (9)

9 (10)

10 (11)

11 (12)

12 (13)

13 (14)

14 (15)

D2

Application 2 (Slope K and Minimum/Maximum Duty Adjustable)

Note: D2 and D3 are recommended to be used when the current in coil L1 is higher than 300mA.

Figure 11. Typical Applications of AM4962