SANYO LB11650

Ordering number : ENN7390
Monolithic Digital IC
LB11650
PWM Input Forward/Reverse Motor Driver
Overview
Package Dimensions
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.
unit: mm
[LB11650]
4.0
11.8 R1.7
14.5max
27.0
20.0
4.6
5.2
• 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
7.8
8.4
Features
3113A-SIP14HZ
1
1.94
0.5
14
0.4
1.6
3.56
2.2
1.78
3.56
SANYO: SIP14HZ
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Motor supply voltage
VM max
Peak output current
IO PEAK
Continuous output current
Logic system supply voltage
Allowable power dissipation
Conditions
Ratings
Unit
30
V
2.0
A
IO max
1.5
A
VCC max
7.0
V
3.5
W
Pd max
tW ≤ 10 µs
When mounted on a glass epoxy circuit board
(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
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
93003TN (OT) No. 7390-1/6
LB11650
Recommended Operating Ranges at Ta = 25°C
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
Electrical Characteristics at Ta = 25°C, VM = 24 V, VCC = 5 V
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
[Output Block]
Output stage supply current 1
IM ON
With no load, ST = high
Output stage supply current 2
IM wt
With no load, ST = low
0.84
1.2
1.56
mA
50
µA
Output saturation voltage 1
VO sat1
IO = +0.5 A, sink side
0.3
0.5
V
Output saturation voltage 2
VO sat2
IO = +1.0 A, sink side
0.5
0.7
V
Output saturation voltage 3
VO sat3
IO = –0.5 A, source side
1.5
1.8
V
Output saturation voltage 4
VO sat4
IO = –1.0 A, source side
1.7
2.0
V
50
µA
Output leakage current
IO leak
VO = VM, sink side
VO = 0 V, source side
–50
µA
[Logic Block]
ICC ON
Logic supply current
ICC BR
ICC OFF
ICC wt
Input voltage
Input current
VCC = 5 V, with the R pin open
BRAKE: LOW, PWM: HI, ST: HI
50
68
85
mA
VCC = 3.3 V, with the R pin shorted to VCC
BRAKE: LOW, PWM: HI, ST: HI
55
75
95
mA
BRAKE: HI, PWM: HI, ST: HI
3.4
4.7
6.0
mA
BRAKE: LOW, PWM: LOW, ST: HI
4.0
5.2
6.5
mA
50
µA
ST: LOW
VINH
2.0
V
VINL
IINH
IINL
C pin charge current
IC
C pin output off threshold voltage
Vtc
VIN = 3.3 V
VIN = 0.8 V
VC = 0 V
0.8
V
35
50
75
µA
5
10
13
µA
35
50
65
µA
1.17
1.3
1.43
V
VHS pin current detection
threshold voltage
VtVHS
VM – 0.55
VM – 0.5
VM – 0.45
V
VLS pin current detection
threshold voltage
VtVLS
0.45
0.5
0.55
V
V
Low voltage cutoff voltage
Low voltage cutoff hysteresis
Thermal shutdown temperature
VLVSD
2.25
2.5
2.75
VLVHYS
0.15
0.2
0.25
150
175
TTSD
Design target value*
V
°C
*: This is a design target value and is not measured.
Pd max — Ta
Allowable power dissipation, Pdmax — W
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
Specified circuit board: 114.3 × 76.1 × 1.6 mm
Glass epoxy resin
0
–20
0
20
40
60
Ambient temperature, Ta — °C
80 85
100
ILB01548
No. 7390-2/6
LB11650
Pin Assignment
11
12
13
14
OB
10
DiGND
C
9
R
ST
8
GND
7
BRAKE
6
PHASE
5
PWM
4
VCC
VLS
3
VHS
2
VM
1
OA
LB11650
Top view
Truth Table
PHASE
BRAKE
ST
PWM
OA
OB
H
L
H
H
H
L
L
L
H
H
L
H
X
L
H
L
OFF
OFF
X
H
H
X
H
H
X
X
L or OPEN
X
OFF
OFF
Operating mode
Forward
Reverse
Output off
Brake
Standby mode (circuits off)
X: H or L
Pin Functions
Pin No.
Pin
1
OA
Output
Pin function
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.
6
ST
8
PWM
12
R
11
GND
13
DiGND
Standby mode control. The IC operates in standby mode when this pin is low or open.
PWM input. High: on
Low: off
Low side drive current switching. (Short R to VCC when VCC is 3.3 V, and leave R open when VCC = 5.0 V.)
Ground
Lower side regeneration diode ground connection
No. 7390-3/6
LB11650
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
M
VM 3
OA 1
14 OB
4 VHS
PWM
8
PHASE
9
BRAKE 10
ST
Control logic
circuit
6
R 12
13 DiGND
VCC = 5 V SW OPEN
VCC = 3.3 V SW ON
Latch
circuit
VCC
5
Thermal shutdown
circuit
UVLO
VREF
circuit
Filter
circuit
GND 11
C 7
2 VLS
No. 7390-5/6
LB11650
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.
This catalog provides information as of September, 2003. Specifications and information herein are
subject to change without notice.
PS No. 7390-6/6