LB11650-E - ON Semiconductor - Datasheet.Directory

Ordering number : ENN7390

93003TN (OT) No. 7390-1/6

Overview

The LB11650 is a full bridge driver that supports

switching between forward and reverse directions. It

operates in one of four modes under application control:

forward, reverse, brake, and open. It also supports direct

PWM control from an external signal. The LB11650 is

optimal for driving brush DC motors and bipolar stepping

motors.

Features

• Supports PWM input

• Built-in high and low side diodes

• Simultaneous on state prevention function (prevents

through currents)

• Built-in thermal shutdown circuit (latching type)

• High and low side short circuit protection function

(latching type overcurrent protection)

• Externally controllable modes: forward, reverse, brake,

open

• Standby mode function

Package Dimensions

unit: mm

3113A-SIP14HZ

27.0

20.0

R1.7

0.5

1.94

8.4

7.8

14.5max

0.4

11.8

5.2

4.6

1.62.2

4.0

1.78 3.56

3.56

SANYO: SIP14HZ

[LB11650]

LB11650

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

PWM Input Forward/Reverse Motor Driver

Monolithic Digital IC

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

Parameter Symbol Conditions Ratings Unit

Motor supply voltage VM max 30 V

Peak output current IOPEAK tW ≤10 µs 2.0 A

Continuous output current IOmax 1.5 A

Logic system supply voltage VCC max 7.0 V

Allowable power dissipation Pd max When mounted on a glass epoxy circuit board 3.5 W

(reference value): 114.3 mm ×76.1 mm ×1.6 mm

Operating temperature Topr –20 to +85 °C

Storage temperature Tstg –55 to +150 °C

Specifications

Absolute Maximum Ratings at Ta = 25°C

No. 7390-2/6

LB11650

Parameter Symbol Conditions Ratings Unit

Motor supply voltage VM 8 to 28 V

Logic system supply voltage VCC 3.0 to 5.25 V

Logic input voltage range VIN –0.3 to VCC V

Recommended Operating Ranges at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

min typ max

[Output Block]

Output stage supply current 1 IM ON With no load, ST = high 0.84 1.2 1.56 mA

Output stage supply current 2 IM wt With no load, ST = low 50 µA

Output saturation voltage 1 VOsat1 IO= +0.5 A, sink side 0.3 0.5 V

Output saturation voltage 2 VOsat2 IO= +1.0 A, sink side 0.5 0.7 V

Output saturation voltage 3 VOsat3 IO= –0.5 A, source side 1.5 1.8 V

Output saturation voltage 4 VOsat4 IO= –1.0 A, source side 1.7 2.0 V

Output leakage current IOleak VO= VM, sink side 50 µA

VO= 0 V, source side –50 µA

[Logic Block]

VCC = 5 V, with the R pin open 50 68 85 mA

ICC ON BRAKE: LOW, PWM: HI, ST: HI

VCC = 3.3 V, with the R pin shorted to VCC 55 75 95 mA

Logic supply current BRAKE: LOW, PWM: HI, ST: HI

ICC BR BRAKE: HI, PWM: HI, ST: HI 3.4 4.7 6.0 mA

ICC OFF BRAKE: LOW, PWM: LOW, ST: HI 4.0 5.2 6.5 mA

ICC wt ST: LOW 50 µA

Input voltage VINH 2.0 V

VINL 0.8 V

Input current IINH VIN = 3.3 V 35 50 75 µA

IINL VIN = 0.8 V 5 10 13 µA

C pin charge current IC VC = 0 V 35 50 65 µA

C pin output off threshold voltage Vtc 1.17 1.3 1.43 V

VHS pin current detection VtVHS

VM – 0.55 VM – 0.5 VM – 0.45

threshold voltage

VLS pin current detection VtVLS 0.45 0.5 0.55 V

threshold voltage

Low voltage cutoff voltage VLVSD 2.25 2.5 2.75 V

Low voltage cutoff hysteresis VLVHYS 0.15 0.2 0.25 V

Thermal shutdown temperature TTSD Design target value*150 175 °C

Electrical Characteristics at Ta = 25°C, VM = 24 V, VCC = 5 V

*: This is a design target value and is not measured.

Pd max — Ta

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

–20 0 20 40 60 80 85 100

Allowable power dissipation, Pdmax — W

Ambient temperature, Ta — °CILB01548

Specified circuit board: 114.3 × 76.1 × 1.6 mm

Glass epoxy resin

Pin Assignment

No. 7390-3/6

LB11650

1 2 3 4 5 6 7 8 9 10 11 12 13 14 Top view

VLS

VHS

VCC

PWM

PHASE

BRAKE

GND

DiGND

LB11650

Truth Table

X: H or L

PHASE BRAKE ST PWM OA OB Operating mode

H L H H H L Forward

L L H H L H Reverse

X L H L OFF OFF Output off

X H H X H H Brake

X X L or OPEN X OFF OFF Standby mode (circuits off)

Pin Functions

Pin No. Pin Pin function

1OA Output

14 OB Output

4 VHS High side current sensing (Insert an external resistor between VM and VHS. When the voltage across this resistor reaches 0.5 V,

the outputs are turned off.)

2 VLS Low side current sensing (Insert an external resistor between VLS and ground. When the voltage across this resistor reaches

0.5 V, the outputs are turned off.)

7 C Connection for an external filter capacitor that prevents incorrect operation of the current sensing output shutdown and thermal

shutdown circuits.

3 VM Motor system power supply

5 VCC Logic system power supply

9 PHASE Forward/reverse switching pin

10 BRAKE Brake control input. A high input switches the IC to brake mode.

6ST Standby mode control. The IC operates in standby mode when this pin is low or open.

8 PWM PWM input. High: on

Low: off

12 R Low side drive current switching. (Short R to VCC when VCC is 3.3 V, and leave R open when VCC = 5.0 V.)

11 GND Ground

13 DiGND Lower side regeneration diode ground connection

High/Low Short Protection Function

This function turns the outputs off to prevent destruction of the IC if a problem such as an output pin being shorted to

VM or ground occurs and excessive current flows in the output transistors.

When an excessive current flows in an output transistor, a potential will occur across either the high side or the low side

current sense resistor. If that value exceeds the current detection threshold voltage, the capacitor connected to the C pin

starts to charge. Then, when the C pin voltage is charged to the output off threshold voltage, the output transistors are

turned off.

To restart the IC once it has gone to the output off state, either set the ST pin to the low level, or temporarily cut the VCC

power supply, and then reapply power.

The overcurrent detection current setting can be set to an arbitrary level with the resistor inserted between VM and VHS

for current flowing in the high side output transistor, and with the resistor inserted between VLS and ground for current

flowing in the low side output transistor.

When the resistor connected to VHS or VLS pin is R (Ω), the detected current I (A) will be as follows.

I (A) = 0.5 (V) / R (Ω)

For example, if R is 0.5 Ω, the detected current I will be 1 A.

This function is not an output current limiter function.

The detection current described above has the meaning that the short-circuit protection circuit begins to operate when a

current in excess of the detection current flows in the outputs. Therefore, if an output pin is shorted to VM or ground, the

maximum possible overcurrent that the output transistors are capable of will flow until the mask time set with the filter

circuit has elapsed. Designers must exert great care in designing the mask time setting.

Filter Circuit

To prevent the overcurrent protection and thermal shutdown circuits from operating incorrectly due to noise, the

LB11650 includes a circuit that sets a mask time so that when an abnormality is detected, it only turns the outputs off if

that state continues for a certain length of time.

When the capacitor connected between the C pin and ground is C (pF), the mask time T (µs) will be as follows.

T (µs) = 2.6 ×10–2 ×C (pF)

For example, if C is 50 pF, the mask time T will be 1.3 µs.

Low Side Transistor Drive Current Switching Pin

Since the lower side output transistor drive current is created from VCC, if the VCC power supply level is reduced, the

drive current will also be reduced. Therefore, the LB11650 is provided with a pin for switching the drive current so that

the LB11650 can provide the same drive current when used with 3.3 V specifications as it does when used with 5 V

specifications.

When VCC = 5 V: Leave the R pin open.

When VCC = 3.3 V: Short the R pin to VCC.

No. 7390-4/6

LB11650

Block Diagram

No. 7390-5/6

LB11650

Control logic

circuit

PWM

PHASE

BRAKE

OA OB

GND

VLS

Thermal shutdown

circuit

UVLO

VREF

circuit Filter

circuit

VCC

VHS

Latch

circuit

DiGND

VCC = 5 V SW OPEN

VCC = 3.3 V SW ON

7 2

141

PS No. 7390-6/6

LB11650

This catalog provides information as of September, 2003. Specifications and information herein are

subject to change without notice.

Specifications of any and all SANYO products described or contained herein stipulate the performance,

characteristics, and functions of the described products in the independent state, and are not guarantees

of the performance, characteristics, and functions of the described products as mounted in the customer’s

products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,

the customer should always evaluate and test devices mounted in the customer’s products or equipment.

SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all

semiconductor products fail with some probability. It is possible that these probabilistic failures could

give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,

or that could cause damage to other property. When designing equipment, adopt safety measures so

that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective

circuits and error prevention circuits for safe design, redundant design, and structural design.

In the event that any or all SANYO products (including technical data, services) described or contained

herein are controlled under any of applicable local export control laws and regulations, such products must

not be exported without obtaining the export license from the authorities concerned in accordance with the

above law.

No part of this publication may be reproduced or transmitted in any form or by any means, electronic or

mechanical, including photocopying and recording, or any information storage or retrieval system,

or otherwise, without the prior written permission of SANYO Electric Co., Ltd.

Any and all information described or contained herein are subject to change without notice due to

product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”

for the SANYO product that you intend to use.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not

guaranteed for volume production. SANYO believes information herein is accurate and reliable, but

no guarantees are made or implied regarding its use or any infringements of intellectual property rights

or other rights of third parties.