LB11988V_12 [SANYO]
Monolithic Digital IC Fan Motor Driver; 单片数字集成电路风扇电机驱动器
| 型号： | LB11988V_12 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Monolithic Digital IC Fan Motor Driver |
| 文件： | 总6页 (文件大小：117K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA0377A
Monolithic Digital IC
LB11988V
Fan Motor Driver
Overview
LB11988V is a motor driver IC optimal for driving the DC fan motors.
Functions
• Three-phase full-wave current linear drive
• Built-in current limiter circuit
• Built-in saturation prevention circuits in both the upper and lower sides of the output stage
• Forward/backward rotation direction setting circuit built in
• FG amplifier
• Thermal shutdown circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum supply voltage
V
max
24
24
CC
V
max
V
S
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
I
max
1.3
A
O
Pd max
Topr
Independent IC
0.5
W
°C
°C
-30 to +75
-55 to +150
Tstg
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high
voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Allowable Operating Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Supply voltage
V
S
5 to 22
7 to 22
V
V
CC
Hall input amplitude
V
Between Hall inputs
±30 to ±80
mVo-p
HALL
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
20812 SY 20120124-S00010//D1306 TI IM B8-7391 No.A0377-1/6
LB11988V
Electrical Characteristics at Ta = 25°C, V
= 12V, V = 12V
S
CC
Ratings
typ
Parameter
Symbol
Conditions
Unit
mA
min
max
24
V
current drain
I
R = 560Ω (Y)
L
15
CC
Output
CC
Output saturation voltage
V
V
I
sat1
sat2
I
= 500mA, Rf = 0.5Ω, Sink + Source
O
2.1
2.6
2.6
3.5
1.0
V
V
O
(Saturation prevention function included)
= 1.0A, Rf = 0.5Ω, Sink + Source
I
O
O
(Saturation prevention function included)
Output leakage current
Hall amplifier
leak
mA
O
Input offset voltage
Input bias current
Common-mode input voltage
FR
V
V
(HALL)
(HALL)
(HALL)
-6
3
+6
3
mV
μA
V
off
V
V
, W
1
b
IN IN
V
-3
cm
CC
Threshold voltage
Input bias current
Current limiter
V
4
8
V
FRTH
Ib (FR)
-5
μA
LIM pin current limit level
I
Rf = 0.5Ω, With the Hall input logic states fixed
1
A
V
LIM
(U, V, W = high, high, low)
Saturation
Saturation prevention circuit
lower side voltage setting
FG amplifier
V
sat
RL = 560Ω (Y), Rf = 0.5Ω, The voltage between
0.28
O
(DET)
each output and the corresponding Rf.
Upper side output saturation voltage
Lower side output saturation voltage
Hysteresis
Vsatu (SH)
Vsatd (SH)
Vhys
11.8
V
V
0.3
23
mV
°C
TSD operating temperature
T-TSD
Design target value*
170
Note * : Items shown to be design target values in the conditions column are not measured.
Package Dimensions
unit : mm (typ)
3315
9.75
24
13
1
12
0.15
0.8
0.3
(0.48)
SANYO : SSOP24J(275mil)
No.A0377-2/6
LB11988V
Pd max - Ta
0.6
0.5
0.4
0.3
0.2
Independent IC
0.30
0.1
0
-30
-10
10
30
50
70
90
Ambient Temperature, Ta - °C
Pin Assignment
LB11988V
Top view
Truth Table and Control Functions
Hall input
Note : The “H” state for FR is defined as a voltage of 8V or higher, and the
“L” state for FR is defined as a voltage of 4V or lower.
Source→Sink
FR
U
H
V
H
W
L
(When V
CC
= 12V.)
V → W
W → V
U → W
W → U
U → V
V → U
W → V
V → W
W → U
U → W
V → U
U → V
H
1
2
3
4
5
6
L
Note : For the Hall inputs, the input high state is defined to be the state
where the (+) input is higher than the corresponding (-) input by
0.01V or higher, and the input low state is defined to be the state
where the (+) input is lower than the corresponding (-) input by
0.01V or higher.
H
H
H
L
L
L
L
L
H
H
L
H
L
H
L
H
L
H
H
H
L
Note : Since this drive technique is a 180° current application scheme, the
phases other than the sink and the source phases will not turn off.
H
L
L
L
No.A0377-3/6
LB11988V
Block Diagram
Logarithmic conversion and differential
distribution
Synthesized output logarithmic
compression block
Hall input synthesis block (linear matrix)
No.A0377-4/6
LB11988V
Equivalent Circuit
Pin name
Equivalent circuit
+
U
IN
-
U
IN
+
V
IN
Input +
Input -
-
V
IN
200Ω
200Ω
+
W
IN
-
W
IN
100μA
U
OUT
V
S
V
V
CC
OUT
W
OUT
RF
150μA
Output
V
S
Lower side oversaturation
prevention circuit input block
200Ω
30kΩ
RF
FR
V
CC
200μA
200Ω
FR
1/2 V
CC
FC
V
CC
10kΩ
FC
FGOUT
V
V
CC
CC
FGOUT
No.A0377-5/6
LB11988V
Pin Functions
Pin No.
Pin name
GND
Function
6
Ground for circuits other than the output transistors.
Note that the Rf pin will be at the lowest potential of the output transistors.
This is the FG amplifier output pin. Internally, it is a resistive load. (Pull up)
3
5
9
FGOUT
FR
Forward/reverse switching pin
FC
+
Corrects the frequency characteristics of the saturation prevention circuit loop and current limiter circuit.
-
+ -
U-phase Hall input. Logic high refers to the state where IN > IN .
10, 11
12, 14
U
V
, U
IN
IN
IN
IN
+
+
-
+ -
, V
IN
, W
V-phase Hall input. Logic high refers to the state where IN > IN .
-
+
-
15, 16
18
W
W-phase Hall input. Logic high refers to the state where IN > IN .
IN
V
Power supply provided to all IC internal circuits other than the output block.
This voltage must be stabilized so that ripple and noise do not enter the IC.
Output block power supply
CC
19
5
V
S
RF
Used for output current detection. The current limiter circuit operates using the resistor (Rf) connected between this
pin and ground.
Note that the lower side saturation prevention circuit operates according to the voltage that appears on this pin.
Since the over-saturation level is set by this voltage, the level of the lower side saturation prevention circuit may be
degraded in the large current region if the value of Rf is made extremely small.
U-phase Hall output.
23
24
1
U
V
OUT
V-phase Hall output.
W-phase Hall output.
(These pins include internal spark killer diodes.)
OUT
W
OUT
SANYO Semiconductor Co.,Ltd. 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 Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents 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 Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require 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 consent of SANYO Semiconductor 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 Semiconductor Co.,Ltd. product that you intend to use.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's
intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of February, 2012. Specifications and information herein are subject
to change without notice.
PS No.A0377-6/6
相关型号：
LB11993W
Monolithic Digital IC For Digital Video Camera Three-phase Brushless 3-in-1 Motor Driver
SANYO
LB11999
Three-Phase Brushless Motor Drivers for CD-ROM Spindle Motor Driver (supports 44x, 48x, 50x)
SANYO
LB11999H
Three-Phase Brushless Motor Drivers for CD-ROM Spindle Motor Driver (supports 44x, 48x, 50x)
SANYO
©2020 ICPDF网 联系我们和版权申明