LB1841 データシートの表示（PDF） - SANYO -> Panasonic

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LB1841

Low-Saturation Current-Controlled Forward/Reverse Motor Driver

SANYO -> Panasonic 

LB1841V

Allowable Operating Ranges at Ta = 25°C

Parameter

Symbol

Power supply voltage

Input High voltage

Input Low voltage

SVR input voltage

LIR input voltage

Output current limiter

VCC

VIH

VIL

VSVR

VLIR

I limit

Conditions

Ratings

Unit

3.0 to 9.0

V

3.0 to 9.0

V

–0.3 to 0.7

V

1.0 to VCC–0.2

V

0.5 to VCC–1.0

V

50 to 350 mA

Electrical Characteristics at Ta = 25°C, VCC = 7.2V

Parameter

Symbol

Conditions

Power supply current

Output saturation voltage

Reference voltage

Current limiter characteristics

Input current

PBC drive current

Vs output voltage

RD saturation voltage

ICC 0

ICC 1

ICC 2

Vsat 1

Vsat 2

Vref

I limit

IIN

IPBC

VS

VRDsat

In standby mode

Forward/reverse No load

In brake mode

IO = 200 mA (upper side + lower side)

IO = 400 mA (upper side + lower side)

IVref = 1 mA

VS-VM resistance = 1Ω at LIR = 2V

VIN = 5V

IO = 1 mA

Ratings

min typ max

Unit

0.1

10 µA

9

13 mA

12

18 mA

0.20 0.30

V

0.40 0.60

V

1.85

2.0 2.15

V

165 185 205 mA

90 150 µA

–10 mA

2.55×VSVR

V

0.3

V

Constant-voltage output VS is determined by the equation VS = 2.55 × VSVR.

The input range of VSVR is 1.0 to 4 V. When VS ≥ VCC, the output will be saturated.

The output current limiter value is determined according to the following equation (Rf is a sensing resistor across VS and VM).

I limit = VLIR/10 Rf(A)

VLIR input range is 0.5 to VCC –1.0 (V).

Block Diagram and Sample Application Circuit

VCC = 3 to 10.5V

10µF

VS = 5.1V

Rf = 0.47 to 2Ω

10µF

Vcc

PBC VS

VM

SVR

LIR

Thermal

shutdown

Vref

= 2.0V

DECODER

Limit

detection

OUT1

0.001µF M

to 0.01µF

OUT2

P-G

RD

S-G

IN1

IN2

DEL

No. 4384-2/7

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