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Rohm Semiconductor Electronic Components Datasheet

BD61243FV Datasheet

Fan Motor Driver

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Datasheet
DC Brushless Fan Motor Drivers
Multifunction Single-phase Full-wave
Fan Motor Driver
BD61243FV
General Description
BD61243FV is a 1chip driver that is composed of
H-bridge power DMOS FET. Moreover, the circuit
configuration is restructured, and convenience has been
improved by reducing the external parts and simplifying
the setting compared with the conventional driver.
Key Specifications
Operating Voltage Range:
Operating Temperature Range:
Output Voltage(total):
5.5V to 16V
40°C to +105°C
0.2V(Typ) at 0.2A
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
Rotation Speed Pulse Signal (FG) Output
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.
Typical Application Circuits
SSOP-B14
SIG
PWM
1 FG
GND 14
2 H-
H
SSW 13
3 H+
ZPER 12
4 SLOPE
MIN 11
5 PWM
REF 10
6 OUT2
VCC 9
7 RNF
OUT1 8
M
SIG
1 FG
GND 14
2 H-
H
SSW 13
3 H+
ZPER 12
4 SLOPE
MIN 11
5 PWM
REF 10
6 OUT2
VCC 9
7 RNF
OUT1 8
M
DC
Figure 1. Application of Direct PWM Input
Figure 2. Application of DC Voltage Input
Product structure : Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product has no designed protection against radioactive rays
1/27
TSZ02201-0H1H0B101290-1-2 .
Jun.19.2015 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD61243FV Datasheet

Fan Motor Driver

No Preview Available !

BD61243FV
Pin Configuration
FG
H-
H+
SLOPE
PWM
OUT2
RNF
1
2
3
4
5
6
7
(TOP VIEW)
Block Diagram
14 GND
13 SSW
12 ZPER
11 MIN
10 REF
9 VCC
8 OUT1
1 FG
SIGNAL
OUTPUT
OSC
2 H-
3 H+
-
COMP
+
4 SLOPE
INSIDE
REG
5 FILTER
PWM
6 OUT2
CONTROL
LOGIC
PRE-
DRIVER
TSD GND 14
SSW 13
ZPER 12
MIN 11
REFE-
RENCE
REF 10
VCC 9
7 RNF
OUT1 8
Pin Description
P/No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
T/Name
FG
H
H+
SLOPE
PWM
OUT2
RNF
OUT1
VCC
REF
MIN
ZPER
SSW
GND
Function
Speed pulse signal output terminal
Hall input terminal
Hall + input terminal
I/O duty slope setting terminal
PWM input duty terminal
Motor output terminal 2
Output current detecting resistor
connecting terminal (motor ground)
Motor output terminal 1
Power supply terminal
Reference voltage output terminal
Minimum output duty setting terminal
Re-circulate period setting terminal
Soft switching setting terminal
Ground terminal (signal ground)
I/O Truth Table
Hall Input
Driver Output
H+ HOUT1 OUT2
HL LH
L HH L
H; High, L; Low, Hi-Z; High impedance
FG output is open-drain type.
FG
Hi-Z
L
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
2/27
TSZ02201-0H1H0B101290-1-2.
Jun.19.2015 Rev. 001


Part Number BD61243FV
Description Fan Motor Driver
Maker ROHM
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BD61243FV Datasheet PDF






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