Diodes AM4962 Manuel d'utilisateur télécharger pdf (Page 4)

Data Sheet

SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962

Apr. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited

Functional Block Diagram

Lock Shutdown

and

Auto Restart

Hall

Bias

Thermal

Shutdown

Hysteresis Amp

Control

Circuit

Triangle Wave

VCC

RADJ

HIN+

HIN-

VMIN

PWM

GND PGND

OUT1

OUT2

1 (1)

Pre-

driver

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)

(16)

V+

104k

42k

90k

54k

51k

56k

93k

18k

A (B)

A HTSSOP-14

B SSOP-16

Figure 3. Functional Block Diagram of AM4962

Truth Table (Note 1)

Items IN- IN+ CF CT OUT1 OUT2 FG Mode

1 H L H L L Rotation

2 L H

L H Off PWM off

3 H L Off L L

Rotation Recirculate

4 L H

L Off Off PWM off

5 H L H Off L

6 L H

L H

Off H Off

Lock Protection

Note 1: V

(H)=5V, V

(L) =1V, V

(H)=5V, V

(L) =0

1 2 3 4 5 6 7 8 9 ... 15 16

Pin Configuration 2
Pin Name Function 3
Pin Number 3
HTSSOP-14 SSOP-16 3
Functional Block Diagram 4
Truth Table (Note 1) 4
Electrical Characteristics 7
Ambient Temperature ( 8
Package: HTSSOP-14 8
Allowed Power Dissipation (W) 9
Package: SSOP-16 9
Max. Duty Cycle 11
Output Duty Cycle (%) 11
Input PWM Duty Cycle (%) 11
Min. Duty Cycle 11
R1, R2, R3, R4, R5, R6 Open 12
Mechanical Dimensions 14

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