L9969X datasheet(12/70 Pages) STMICROELECTRONICS

12 / 70 page

2.6

Power Supply

Figure 6 shows the connections between power supplies and L9969 internal blocks.

Figure 6. Schematic of internal power supply

VDD

Monitoring

Logic

and

SPI

Diagnostic

of the

H-bridge

Table 9. VDD current absorption

Symbol

Parameter

Condition

Min Typ Max Unit

IVDD_SINGLE_OFF

Single bridge IC VDD supply current, bridge disabled

VDD = 4.5 V to 5.5 V

DIS = VDD

NABE = 0 V

RCF = 5.1 kΩ

CL4

IVDD_SINGLE_ON_3A

Single bridge IC VDD supply current, bridge enabled with

3 A load

VDD = 4.5 V to 5.5 V

DIS = 0 V

NABE = VDD

RCF = 5.1 kΩ

PWM = DIR = 0 V

IOUT = 3 A

CL4

13.4 mA

IVDD_TWIN_OFF

Twin bridge IC VDD supply current (VDD1 + VDD2), both

bridges disabled

VDDx = 4.5 V to 5.5 V

DISx = VDD

NABEx = 0 V

RCFx = 5.1 kΩ

CL4

18.3 mA

IVDD_TWIN_ON_3A

Twin bridge IC VDD supply current (VDD1 + VDD2), both

bridges enabled with 3 A load

VDDx = 4.5 V to 5.5 V

DISx=0V

NABEx = VDD

RCFx = 5.1 kΩ

PWMx = DIRx = 0 V

IOUTx2 = 3 A

CL4

23.1 mA

L9969x

Electrical specifications

DS14029 - Rev 6

page 12/70

L9969X Datasheet(PDF) 12 Page - STMicroelectronics

L9969X Datasheet(HTML) 12 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

Datasheet Download

Link URL