LB8649FN

No.7893-2/9

Allowable Operating Range at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

VB1, 2, 3

(*2)

1.9 to 10

Source Voltage Range

VCC

1.9 to 10

V

Input Pin “H” Voltage

VINH

1.8 to 10

V

Input Pin “L” Voltage

VINL

-0.3 to 0.4

V

Constant Voltage Setting Input Range

VOC

VC1, VC2

0.1 to VB

V

Constant Current Setting Input Range

VO1

IAE, ISH

0.1 to 1.0

V

(*2) There is no priority on each power supply ; VB1, 2, VDD, VCC and VIN.

Example1 : VB1 = VB2 = VDD = 2.4V (Battery power supply), VCC = 4V (Step-up power supply),

VIN (CPU power supply) = 5V

Example2 : VB1 = VB2 = 2.4V, VIN = 3.3V, VDD = VCC = 5V

Electrical Characteristics at Ta = 25

°C, VB1 = VB2 = VDD = VCC = 2.4V, Rf = 1Ω

Ratings

Parameter

Symbol

Conditions

min

typ

max

Unit

Standby Current

Consumption

ICC0

VB1 = VB2 = VDD = VCC = 8.0V (*3)

0.1

5.0

µA

ICC1

IN1 or IN2 or IN3 or IN4 = H (*3)

6

9

ICC2

IN5 or IN6 or IN7 or IN8 = H (*3)

14

19

Operating Current

Consumption

ICC3

IN9 or IN10 or IN11 or IN12 = H (*3)

18

25

mA

Vref1

Iref = -1mA, INHD = L

0.95

1.0

1.05

Reference Voltage

Vref2

Iref = -1mA, INHD = H

0.64

0.67

0.70

V

Control Pin Input Current

IIN

VIN = 5.0V

60

90

µA

Overheat Protection

Detection Temperature

THD

Design guaranteed (*4)

160

180

200

°C

[Constant voltage stepping motor driver for AF] (OUT1, 2, 3, 4)

Output Constant Voltage 1

VO1

VC1 = 0.30V

1.46

1.53

1.60

V

Output Saturation Voltage 1

VSAT1

IO = 0.2A (upper and lower)

0.27

0.37

0.50

V

[Constant voltage driver for ZOOM] (OUT5, 6, 7, 8)

Output Constant Voltage 2

VO2

VC2 = 0.30V

1.46

1.53

1.60

V

Output Saturation Voltage 2

VSAT2

IO = 0.2A (upper and lower)

0.27

0.37

0.50

V

[Constant current driver for SH/AE] (OUT9, 10, 11, 12)

Output Constant Current

IO

Rf = 1

Ω, ISH = 0.3V

271

285

302

mA

Output Saturation Voltage 3

VSAT3

IO = 0.3A (upper and lower)

0.33

0.44

0.60

V

(*3) Measures by summation of current dissipation for each line of VB1, VB2, VDD and VCC.

(*4) For the characteristic within the guaranteed temperature range, shipment check is performed at Ta = 25

°C.

For all temperature range, it is design guaranteed.