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Rohm Semiconductor Electronic Components Datasheet

BD61241FV Datasheet

Fan Motor Driver

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Datasheet
DC Brushless Fan Motor Drivers
Multifunction Single-phase Full-wave
Fan Motor Driver
BD61241FV
General Description
BD61241FV is a 1chip driver that is composed of
H-bridge power DMOS FET. The pin is compatible with
BD61240FV(rotation speed pulse signal output).
Features
SSOP Small Package
Driver Including Power DMOS FET
Speed Controllable by DC / PWM Input
I/O Duty Slope Adjust
PWM Soft Switching
Current Limit
Start Duty Assist
Lock Protection and Automatic Restart
Quick Start
Lock alarm signal (AL) output
Key Specifications
Operating Voltage Range:
5.5V to 16V
Operating Temperature Range: -40°C to +105°C
Output Voltage (Total):
0.2V(Typ) at 0.2A
Package
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.40mm x 1.35mm
Applications
Fan motors for general consumer equipment of
desktop PC, Projector, etc.
SSOP-B16
Typical Application Circuits
SIG
PWM
1 AL
GND 16
2 H-
SLOPE 15
H
3 H+
SOFT 14
4 LA
LZ 13
5 PWM
MIN 12
6 CS
REF 11
7 OUT2
VCC 10
8 RNF
OUT1 9
M
Figure 1. Application of PWM Input
SIG
1 AL
GND 16
2 H-
SLOPE 15
H
3 H+
SOFT 14
4 LA
LZ 13
5 PWM
MIN 12
6 CS
REF 11
7 OUT2
VCC 10
8 RNF
OUT1 9
M
Figure 2. Application of DC Voltage Input
DC
Product structure : Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/27
TSZ02201-0H1H0B101570-1-2
16.Oct.2015 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD61241FV Datasheet

Fan Motor Driver

No Preview Available !

BD61241FV
Pin Configuration
(TOP VIEW)
AL 1
H- 2
H+ 3
LA 4
PWM 5
CS 6
OUT2 7
RNF 8
16 GND
15 SLOPE
14 SOFT
13 LZ
12 MIN
11 REF
10 VVCCCC
9 OUT1
Block Diagram
Datasheet
1 AL
SIGNAL
OUTPUT
OSC
TSD GND 16
2 H-
3 H+
-
COMP
+
4 LA
INSIDE
REG
INSIDE
REG
5
PWM
FILTER
6 CS
-
VCL
COMP
+
7 OUT2
CONTROL
LOGIC
PRE-
DRIVER
SLOPE 15
SOFT 14
LZ 13
MIN 12
REFE-
RENCE
REF 11
VVCCCC 10
8 RNF
OUT1 9
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
Function
AL Lock alarm signal output terminal
H– Hall – input terminal
H+ Hall + input terminal
LA
Lead angle function select
terminal
PWM PWM input duty terminal
CS Output current detecting terminal
OUT2
RNF
Motor output terminal 2
Output current detecting resistor
connecting terminal (motor ground)
OUT1 Motor output terminal 1
VCC Power supply terminal
REF Reference voltage output terminal
MIN
Minimum output duty setting
terminal
LZ Recirculate period setting terminal
SOFT Soft switching setting terminal
SLOPE I/O duty slope setting terminal
GND Ground terminal (signal ground)
I/O Truth Table
Hall Input
H+ H–
HL
LH
H; High, L; Low
Driver Output
OUT1
OUT2
LH
HL
Motor state
Rotating
Locking
AL output is open-drain type.
AL
L
Hi-Z
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/27
TSZ02201-0H1H0B101570-1-2
16.Oct.2015 Rev.001


Part Number BD61241FV
Description Fan Motor Driver
Maker ROHM
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BD61241FV Datasheet PDF






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