BD6974FV-LB Datasheet, PDF (1/20 Pages) Rohm – Multifunction Single-phase Full-wave Fan Motor Driver

Datasheet
DC Brushless Fan Motor Drivers
Multifunction Single-phase Full-wave
Fan Motor Driver
BD6974FV-LB
General Description
This is the product guarantees long time support in
Industrial market.
BD6974FV-LB is a pre-driver that controls the motor
drive part composed of the power transistors. Moreover,
a lot of functions are installed, and the pin is compatible
with BD6973FV-LB (Rotation speed pulse signal output).
Package
SSOP-B16
W (Typ) x D (Typ) x H (Max)
5.00mm x 6.40mm x 1.35mm
Features
 Long Time Support Product for Industrial Applications
 Pre-driver for External Power Transistors
 Speed Controllable by DC / Direct PWM Input
 PWM Soft Switching
 Soft Start
 Quick Start
 Current Limit
 Lock Protection and Automatic Restart
 Lock Alarm Signal (AL) Output
SSOP-B16
Application
 Industrial Equipment and Fan motors for general
consumer equipment of desktop PC, and Server, etc.
Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Limit
Unit
Supply Voltage
Power Dissipation
Vcc
20
V
Pd
0.87 ^{(Note 1)}
W
Operating Temperature Range
Topr
–40 to +100
°C
Storage Temperature Range
Tstg
–55 to +150
°C
High Side Output Voltage
Voh
36
V
Low Side Output Voltage
Vol
15
V
Low Side Output Current
Iol
10
mA
Lock Alarm Signal (AL) Output Voltage
Val
20
V
Lock Alarm Signal (AL) Output Current
Ial
10
mA
Reference Voltage (REF) Output Current
Iref
12
mA
Hall Bias (HB) Output Current
Ihb
12
mA
Input Voltage (H+, H–, TH, MIN, CS)
Vin
7
V
Junction Temperature
Tjmax
150
°C
(Note 1) Reduce by 7.0mW/°C over Ta=25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated
over the absolute maximum ratings.
Recommended Operating Conditions (Ta=–40°C to +100°C)
Parameter
Symbol
Limit
Unit
Operating Supply Voltage Range
Vcc
4.3 to 17.0
V
Operating Input Voltage Range 1 (H+, H–)
(More Than Vcc=9V)
Operating Input Voltage Range 1 (H+, H–)
(Less Than Vcc=9V)
0 to 7
V
Vin1
0 to Vcc–2
V
Operating Input Voltage Range 2 (TH, MIN)
Vin2
0 to Vref
V
○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays
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TSZ22111・14・001
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TSZ02201-0H1H0B100830-1-2
27.Feb.2014 Rev.002