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PDF BD16805FV-M Data sheet ( Hoja de datos )
| Número de pieza | BD16805FV-M | |
| Descripción | Three Phase Motor Predriver | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Three Phase Motor Predriver IC for automotive
Built-in the Phase adjustment control and
180°energizing drive
Three Phase Motor Predriver
BD16805FV-M
●General Description
BD16805FV-M is three phase motor driver for air conditioner blower motor, battery cooling fan motor, and seat cooling fan
motor. This IC can implement silent drive by 180° energizing drive. The BD16805FV includes a built-in phase adjustment
control function to drive highly effective. The setting that can correspond to various motor controls is possible.
(PWM frequency, Overcurrent protection limit, Start time and Lock protection)
●Features
●Packages
■ AEC-Q100 Qualified
SSOP-B40
13.6 ㎜×7.80 ㎜×1.80 ㎜
■ 180° energizing
■ Phase adjustment control
●Applications
■ Built-in charge pump
■ Air conditioner blower motor
■ Built-in MUTE return and uptime setting
■ Battery cooling fan motor
■ Normal rotation/reversal rotation switch function
■ Seat cooling fan motor
■ 1FG/3FG switch function
■ Speed control by DC input and PWM input
■ Output mode can be selected
■ Built-in overcurrent protection circuit(OCP)
(With limit adjustment function)
■ Lock protection function
■ Built-in under voltage protection circuit(UVLO)
■ Built-in over voltage protection circuit(OVP)
■ Built-in thermal shutdown (TSD)
●Typical Application Circuits
BATTERY
0.1uF
VREGVCC
VG
HU+
HALL HU-
HV+
HALL HV-
HW+
HALL HW-
PWM SIGNAL
470pF～10000pF
1uF
0.1uF～10uF
CT2 DISCHARGE SIGNAL
STB SIGNAL
VDEG
MODESEL
FR
FGSW
LOCPL
PWM
VTH
CT2
COSC
CAGC
CT1
MCT2
STB GND
0.1uF
C_P C_M
DUH
VS_U
DUL
DVH
VS_V
DVL
DWH
VS_W
DWL
RNF
Motor
PGND
MCU Standard
100kΩ Power Supply
AL
ALARM SIGNAL
100kΩ VREG
FG
1 FG /3 FG SIGNAL
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays.
1/16
TSZ02201-0G2G0BE00010-1-2
06.Oct.2016 Rev.004
1 page  
BD16805FV-M
●Electrical characteristics(Unless otherwise noted, VCC = 8V～18V, Ta = -40℃～110℃,Hall input amplitude＝100mVpp,
COSC=1000pF, Between C_P and C_M 0.1µF, between VG and VCC 0.1µF, CAGC=1µF, VS_U, VS_V, VS_W＝GND ※1)
Parameter
Symbol
MIN.
Limits
TYP.
MAX.
Unit
Condition
【Whole】
Circuit current 1
ICC1
- 0 10 µA STB=L ※2
Circuit current 2
ICC2
STB=H、VTH=0V
- 15.2 30.4 mA
VS_U,VS_V,VS_W=open
【Hall amplifier】
Input bias current
IB
-10 0
10 µA
Input level
VINH
45 -
- mVpp Both sides input level
Range of phase input
VHAR
1.3 - 3.7 V
【VREG terminal】
VREG voltage
VREG
5.2 5.5 5.8
Ｖ At -20mA SOURCE ※3
【STB terminal】
"L" Range of level voltage
VSTBL
0 - 1.0 V
"H" Range of level voltage
VSTBH
3.0 - VREG V
Outflow current
ISTBL
- - 10 µA VSTB=0V
Inflow current
ISTBH
20 40 80 µA VSTB=5V
【PWM terminal】
"L" Range of level voltage
VPWML
0 - 1.0 V
"H" Range of level voltage
VPWMH 3.0 - VREG V
Outflow current
IPWML
- - 10 µA VPWM=0V
Inflow current
IPWMH
25 50 100 µA VPWM=5V
Output resistance
RPWM
80 200 320 kΩ
Input dead zone output ON DUTY1 ONDUTY1
9.5 12.5 15.5
% Figure -4 reference
Inputdead zoneoutputOFFDUTY1 OFFDUTY1 4.5 7.5 10.5 % Figure -4 reference
Inputdead zoneoutputOFFDUTY2 OFFDUTY2 95.5 97.5 99.5
% Figure -4 reference
Input dead zone output ON DUTY2 ONDUTY2
90.5 92.5 94.5
% Figure -4 reference
Input dead zone hysteresis width 12 DUTYHYS12
3
5
7
% Figure -4 reference
Voltage L of torque input mask
TQML
0.5 2.5 4.5
% VMODESEL=H Figure -8 reference
【VTH terminal】
Predriver output DUTY1
DUTY 1
49.1 56.6 64.1
% VTH=1.0V ※4 Figure -9 reference
Predriver output DUTY2
DUTY 2
59.2 66.7 74.2
% VTH=2.0V ※4 Figure -9 reference
Predriver output DUTY3
DUTY 3
65.8 73.3 80.8
% VTH=2.4V ※4 Figure -9 reference
Predriver output DUTY4
DUTY 4
75.7 83.2 90.7
% VTH=2.9V ※4 Figure -9 reference
【VDEG terminal】
Range of Phase adjustment control
VVDEG
27 30 33 deg VDEG=0V
Phase adjustment control accuracy
FHDEG
-3 0 3 deg VDEG=2.5V
※1 VS_U, VS_V, VS_W＝GND only at measuring electric characteristics. In normal operation, please connect to motor output of each phase
※2 Please set input pins (PWM pin、FR pin、MODESEL pin、VDEG pin、FGSW pin、VTH pin、MCT2 pin) to 0V
※3 Please connect to phase compensation capacitor 1µF or more between the VREG and GND.
※4 Measure output DUTY with condition of applying 2.5Vpp standard ±100mV DC to hall inputs and 2.2Vpp to COSC in Test mode.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/16
TSZ02201-0G2G0BE00010-1-2
06.Oct.2016 Rev.004
5 Page 
BD16805FV-M
3. Lock protection function
If hall input signal is stop, the lock protection circuit is determined that detection of lock protection. When the lock
protection circuit is detect lock protection, all pre driver output is fix to Low.
Terminal CT1 capacitor and lock protection ON time（TON1）
TON1（Charging time）＝(VLOCKP_H- VLOCKP_L)/（ILOCK/C）
C：CT1 Capacity of terminal external capacitor
ILOCK：SOURCE current for lock protection detection （TYP.:1µA）
VLOCKP_H：Terminal CT1 comparison H voltage（TYP.:3.85V）
VLOCKP_L：Terminal CT1 comparison L voltage（TYP.:0.55V）
Reference value (example)
At CT1=1µF
TON1=(3.85-0.55)V/（1µA/1µF）=3.3s
At CT1=10µF
TON1=(3.85-0.55)V/（1µA/10µF）=33s
Our company is recommending the range of 0.1µF-10µF to the capacitor of CT1.
CT1 is shorted to GND when the lock protection time is not set.
Constant current
1uA[ TYP ]
CT1 SW for discharge
Figure -3 CT1 Charge Discharge equivalent circuit chart
When the lock protection is released and it reactivates, the CT1 capacitor should be completely discharged.
Discharge SW of Figure-3 is turned on to integral value 50% as shown in Figure-7, 8. Please raise PWM input DUTY
after discharging the CT1 capacitor.
（Reference）
The discharge time is decided by the expression of ΔV=（1-e-ｔ/(C×R)）×ΔV(initial value).
At ｔ＝C×R, it becomes the standing fall time of 63.2%.
ON resistance of SW for CT1 discharge becomes MAX.=320Ω.
(Refer to electric characteristic CT1 terminal item P.3. )
4. Over power supply voltage output OFF function
Over power supply voltage output OFF function is built into as output protection at the over voltage. When the
impressed voltage to the terminal VCC becomes 30V (TYP.) or more, all Pre driver output terminal becomes Low.
However, it is only STB=Hi as the operation condition. Please note that this function doesn't operate because the
current supply also stop in IC at STB=Low (At the standby).
Over power supply voltage output OFF function is built into. Please do not exceed the absolute maximum rating so that
there is a possibility of destruction when the absolute maximum rating of the power supply voltage is exceeded.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/16
TSZ02201-0G2G0BE00010-1-2
06.Oct.2016 Rev.004
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet BD16805FV-M.PDF ] | |
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