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PDF EUM6167 Data sheet ( Hoja de datos )
| Número de pieza | EUM6167 | |
| Descripción | Single-Phase Full-Wave Pre Driver | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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EUM6167
Single-Phase Full-Wave Pre Driver
for Fan Motor
DESCRIPTION
EUM6167 is a pre driver for single coil brushless DC
motor. With an external PWM input signal, EUM6167
can control the speed of DC motor. It is an interface
between a HALL IC and a single coil motor. The
functions built in EUM6167 include PWM control
mode, minimum speed mode, soft-switching time, fan
tachometer, lock protection, auto restart, Hall Bias and
current limiter. PWM mode controls the external
PMOS-NMOS FET in low noise and low vibration.
Minimum speed mode makes the lowest speed of
motor settable. Soft-switching time can cut the
ineffective current when phase change is not set. If the
motor is stalled by external force or obstacles,
overdrive current may incur coil overheat/burning. To
prevent this, lock protection circuit can shut down the
external power devices for a few seconds after motor
lockup. Then auto restart circuit will try to power up
these devices. The protection and power up time are
settable by external capacitor. EUM6167 has FG
output and RD output.
FEATURES
z Single-phase Pre Driver
z PWM control mode
z Soft-switched time
z Built in Hall Bias
z Minimum speed settable
z Current Limiter
z Lock protection and auto restart
z FG and RD Output
z 12V/24V/48V Power Supplies Applicable
z Available in TSSOP-20 Package
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z PC/Server FAN Motor
Application Circuit
DS6167 Ver1.2 Sep. 2007
Figure 1. 12V Application Circuit
1
1 page  
EUM6167Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Absolute Maximum Ratings
VCC --------------------------------------------------------------------------------- 18V
IOUT -------------------------------------------------------------------------------- 50mA
VOUT ---------------------------------------------------------------------------------- 18V
IHB ----------------------------------------------------------------------------------- 10mA
VTH ---------------------------------------------------------------------------------- 8V
VFG & VRD ------------------------------------------------------------------------ 18V
IFD & IRD -------------------------------------------------------------------------- 10mA
Power Dissipation ------------------------------------------------------------------ 0.8W
Operating Temperature ------------------------------------------------------------ -30°C to 95°C
Storage Temperature --------------------------------------------------------------- -55°C to 150°C
Lead Temperature (Soldering, 10sec.) ------------------------------------------- 260°C
Recommended Operating Conditions at Ta = 25°C
Supply Voltage, VCC ---------------------------------------------------------------- 6V to 16V
V threshold input voltage, VTH --------------------------------------------------- 0V to 7V
Hall input voltage range ------------------------------------------------------------ 0.2V to 3V
Electrical Characteristics
(Unless otherwise specified Ta =25°C, VCC = 12V)
Parameter
Conditions
ICC1
Supply Current
ICC2
Rotation mode
Lock protection mode
Hall input
VHN Hall input sensitivity
Zero to peak (Offset & Hysteresis
included)
Output
IOP OUT-P sink current
VON OUT-N output voltage
Output current of OUT-N = 20mA
Voltage Reference
6VREG 6V Regulator
IHB = 5mA
VOVER VOVER voltage
PWM Block
FPWM CPWM OSC frequency
C = 100pF
VCRL CPWM Low level voltage
VCRH CPWM High level voltage
Lock Protection Block
ICT1 CT charge current
VCT = 0V
ICT2 CT discharge current
VCT = 4.2V
RCT
Ratio of charge
discharge current
current
to RCT = ICT1 / ICT2
VCTH CT high level voltage
VCTL CT low level voltage
Limit
Min Typ Max.
-- 4.61 8
-- 4.65 8
Unit
mA
-- 8.88 15 mV
25 34 --
8 9.89 --
mA
V
5.74 5.89 6.15
12.2 12.7 13.4
V
20 23 30 KHz
1.46 1.54 1.75 V
4.46 4.55 4.65 V
1.80 2.12 2.40
0.14 0.22 0.30
µA
µA
6.37 9.71 13.06 --
3.5 3.6 3.7
1.5 1.6 1.7
V
V
DS6167 Ver1.2 Sep. 2007
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet EUM6167.PDF ] | |
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