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BD6995FV Datasheet

Multifunction Single-phase Full-wave Fan Motor Driver

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Datasheet
DC Brushless Fan Motor Drivers
Multifunction Single-phase Full-wave
Fan Motor Driver
BD6995FV
General Description
BD6995FV is a 1chip driver for 12V single-phase
full-wave fan motor. This IC employs the Bi-CDMOS
process and soft switching drive, low power
consumption and quiet drive is provided.
Key Specifications
Input Voltage Range:
4.3V to 17V
Operating Temperature Range: -40°C to +105°C
Output Voltage
(High and Low Total):
0.6V(Typ) at 0.4A
Output Current:
1.2A(Max)
Features
SSOP Small Package
PWM Soft switching Drive
Standby Function
Speed Controllable by DC Input
Quick Start
OSC Select Function
(Triangle OSC or Saw OSC)
Signal Select Function
(Rotation Speed Pulse Signal: FG or Lock Alarm
Signal: AL)
Signal Output
Lock Protection and Automatic Restart
(Without External Capacitor)
Current Limit
Package
SSOP-B16
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.40mm x 1.35mm
SSOP-B16
Applications
Fan motors for general consumer equipment like
Desktop PC, Projector, etc.
Typical Application Circuit
M
PWM
SIG
1 RNF
2 OUT2
3 VCC
4 MIN
5 TH
6 OSC
7 OSCH
8 SIG
OUT1 16
GND 15
SELO 14
SELS 13
REF 12
H11
HB 10
H
H+ 9
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product has no designed protection against radioactive rays
1/25
TSZ02201-0H1H0B101580-1-2
24.Jun.2016 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD6995FV Datasheet

Multifunction Single-phase Full-wave Fan Motor Driver

No Preview Available !

BD6995FV
Pin Configuration
RNF 1
(TOP VIEW)
16 OUT1
OUT2 2
15 GND
VCC 3
14 SELO
MIN 4
13 SELS
TH 5
12 REF
OSC 6
11 H
OSCH 7
10 HB
SIG 8
9 H+
Figure 1. Pin Configuration
Block Diagram
Pin Description
P/No. P/Name
Function
1
RNF
Output current detecting resistor connection
terminal (motor ground)
2 OUT2 Motor output 2 terminal
3 VCC Power supply terminal
4 MIN Minimum output duty setting terminal
5 TH Output duty control input terminal
6 OSC Oscillating capacitor connection terminal
7
OSCH
Resistor connection terminal for capacitor
charge (use only for Saw OSC)
8
SIG
Signal output terminal (Rotation speed pulse
signal: FG or Lock alarm signal: AL)
9 H+ Hall + input terminal
10 HB Hall bias terminal
11 HHall input terminal
12 REF Reference voltage output terminal
13
SELS
Signal select terminal (Rotation speed pulse
signal: FG or Lock alarm signal: AL)
14
SELO
OSC select terminal (Triangle OSC or Saw
OSC)
15 GND Ground terminal
16 OUT1 Motor output 1 terminal
1 RNF
OUT1 16
2 OUT2
3 VCC
CURRENT
LIMITER
PRE
DRIVER
GND 15
INTERNAL
REG
FUNCTION
SELECTOR
SELO 14
4 MIN
FUNCTION
SELECTOR
13
SELS
5 TH
6
OSC
OSC
CONTROL
LOGIC
REF
HALL
COMP
REF 12
H11
7 OSCH
QUICK
START
HALL
BIAS
HB 10
8 SIG
SIGNAL
OUTPUT
LOCK
PROTECT
TSD
H+ 9
Figure 2. Block Diagram
I/O Truth Table
Hall Input
H+ H
Driver Output
OUT1 OUT2 SIG(FG)
HLL
L HH
H; High, L; Low, Hi-Z; High impedance
SIG output is open-drain type.
Motor State
OUT1/2
H
L
SIG(FG)
Hi-Z
L
SIG(AL)
Rotating
-
Locking
-
Standby
Hi-Z
L; Low, Hi-Z; High impedance
SIG output is open-drain type.
-
-
Hi-Z
L
Hi-Z
L
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
2/25
TSZ02201-0H1H0B101580-1-2
24.Jun.2016 Rev.001


Part Number BD6995FV
Description Multifunction Single-phase Full-wave Fan Motor Driver
Maker ROHM
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BD6995FV Datasheet PDF






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