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PDF LV8907UW Data sheet ( Hoja de datos )
| Número de pieza | LV8907UW | |
| Descripción | Sensor-less Three-phase Brushless DC Motor Controller | |
| Fabricantes | ON Semiconductor | |
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LV8907UW
Advance Information
Sensor-less Three-phase
Brushless DC Motor Controller,
with Gate Drivers, for Automotive
Overview
The LV8907 is a high performance, AEC-Q100 qualified, sensor-less
three-phase BLDC motor controller with integrated gate drivers for driving
external N-MOSFETs. An on-chip two-stage charge pump provides required
gate current for a wide range of ultra low RDS(ON) type external N-MOSFETs.
The device offers a rich set of system protection and diagnostic functions such
as over-current, over-voltage, short-circuit, under-voltage, over-temperature
and many more. It supports open-loop as well as closed-loop speed control
with user configurable startup, speed setting and proportional/integral (PI)
control coefficients, making it suitable for a wide range of motor and load
combinations. With an in-built linear regulator for powering an external circuit,
a watchdog timer and a Local Interconnect Network (LIN) transceiver, the
LV8907 offers the smallest system solution footprint.
The LV8907 stores system paramerters in embedded one-time programmable
(OTP) non-volatile memory and operates out of system memory. An SPI
interface is provided for parameter setting and monitoring the system health.
With the operating junction temperature tolerance up to 175ºC and electrically
LIN compatible control signals (PWM and Enable), the LV8907 is an ideal
solution stand-alone automotive BLDC motor control systems.
Features
• AEC-Q100 qualified and PPAP capable.
• Operating junction temperature up to 175ºC
• Operating voltage range from 5.5V to 20V with tolerance from 4.5V to
40V
• Embedded proprietary sensor-less commutation control
• Integrated gate drivers for driving six N-MOSFETs
• Two-stage charge pump for continuous 100% duty-cycle operation
• On-chip OTP memory for storing system parameters
• In-built LIN transciever and Watchdog timer
• SPI interface for real-time parameterization and diagnostic
• Integrated 5V/3.3V regulator output for external circuit
• Supports open-loop as well as closed-loop speed control
• Configurable speed setting and PI control coefficients
• Various system protection features including:
o Shoot through protection using configurable dead-time
o Drain-source short detection
o Cycle-by-cycle current limit and over-current shutdown
o Over-voltage and under-voltage shutdown
o Over-temperature warning and shutdown
o Input PWM fault detection
Typical Applications
• Automotive pumps (Fuel, Oil, and Hydraulic)
• Fans (HVAC, Radiator, Battery Cooling, LED Headlight Cooling)
• BLDC motor control with or without LIN control
• White goods and industial BLDC motor control
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
© Semiconductor Components Industries, LLC, 2015
July 2015- Rev. P2
1
www.onsemi.com
PACKAGE PICTURE
SPQFP48 7x7 / SQFP48K
7 mm x 7 mm SQFP48K
Publication Order Number:
LV8907UW/D
1 page  
Pin
Name
VCC
RXD
TXD
PWMIN
AGND
NC
CSB
SCLK
SI
SO
FG
DIAG
LGND
LIN_
PWMIN
TEST
TH
RFSENS
RF
COM
SUL
SVL
SWL
UL
VL
WL
UOUT
VOUT
WOUT
UH
VH
WH
PGND
VGL
CHP
CP1N
CP1P
CP2P
CP2N
VS
WAKE
Pin
No
1
2
3
4
5
6, 14,
16,18,
21, 23
7
8
9
10
11
12
13
15
17
19
20
22
24
33
29
25
34
30
26
35
31
27
36
32
28
37
38
39
40
41
42
43
44
45
LV8907UW
PIN DESCRIPTION
Description
5V or 3.3V regulator output pin. (Selected by internal register setting)
Power supply for microcontroller. Connect capacitor to AGND for stability.
Open drain logic level output of LIN_PWMIN received data. Use pullup to a voltage less
than or equal to VS.
Logic level input of transmit data for LIN_PWMIN.
Digital level PWM input pin for direct drive or speed selection. See page 18 for details.
Input polarity can be programmed for either active high or active low.
Analog GND pin.
No Connections
Active low SPI interface chip selection pin. See page 23 for SPI timing details.
SPI interface clock input pin. See page 23 for SPI timing details.
Active high SPI interface serial data input pin. See page 23 for SPI timing details.
Open drain SPI interface serial data output pin. See page 23 for SPI timing details.
Open drain back-EMF transition output pin. The frequency is selectable via register
settings.
Programmable open drain diagnostic output.
LIN Block GND pin.
LIN transceiver input/output. Register selectable as PWM input with a VVS/2 threshold.
Factory test pin. Connect to GND.
Thermistor input pin for FET temperature detection. If the input voltage is below the
threshold voltage, an error is triggered. The error threshold is programmable. To disable
tie to V3RO.
Shunt resistance reference pin. Connect this pin to the GND side of the Shunt resistor
with Kelvin leads.
Output current detect pin. Connect this pin to output side of shunt resistor with Kelvin
leads. The maximum peak motor current is limited to the value calculated by
IOUT=100mV/RF.
COM input pin. Connect this pin to the motor neutral point. This point may be derived from
a resistive network with 1k resistors to the phases.
Current return path for low-side gate drive. Short circuit shutoff level is measured
between this pin and its corresponding phase pin.
Gate driver output pin for the low-side Nch Power FET. Use gate resistors for
wave-shaping.
Current return path for high-side gate drive and reference for short circuit shut-off.
Gate driver output pin for the high-side Nch Power FET. Use gate resistors for
wave-shaping.
GND pin for the charge pump output drives.
Power supply pin for low-side gate drive. Connect decoupling capacitor between this pin
and GND.
Power supply pin for high-side gate drive. Connect decoupling capacitor between this pin
and VS.
Charge transfer pin of the Charge pump (1N). Connect capacitor to CP1P-CP1N.
Charge transfer pin of the Charge pump (1P). Connect capacitor to CP1P-CP1N.
Charge transfer pin of the Charge pump (2P). Connect capacitor to CP2P-CP2N.
Charge transfer pin of the Charge pump (2N). Connect capacitor to CP2P-CP2N.
Power supply pin.
WAKE pin. “H” = Operating mode, “L” or “Open” = Sleep mode.
www.onsemi.com
5
5 Page 
LV8907UW
Parameter
Symbol
Condition
CURRENT LIMIT / OVER-CURRENT PROTECTION
Current mode limit voltage VRF1
Over-current detection
Voltage threshold
VRF2
Voltage between RF and
RFSENS
Voltage between RF and
RFSENS
THERMAL SENSING PROTECTION
Threshold Voltage
(Thermal error if below)
VTH0
VTH1
VTH2
VTH3
THTH[1:0]=00
THTH[1:0]=01
THTH[1:0]=10
THTH[1:0]=11
Hysteresis range
VTHHYS
THERMAL PROTECTION
Thermal
warning temperature
TTW0
TTW1
Thermal warning
temperature hysteresis
TTWHYS
Thermal shutdown
temperature
TTSD0
TTSD1
Thermal shutdown
temperature hysteresis
TTSDHYS
*Note 4
(Junction temperature)
TSTS=0
TSTS=1
*Note 4
(Junction temperature)
*Note 4
(Junction temperature)
TSTS=0
TSTS=1
*Note 4
(Junction temperature)
SUPPLY VOLTAGE DETECTION
Low-voltage detection
VSLV
Low-voltage detection
hysteresis
VSLVHYS
Over-voltage detection VSHV
Over-voltage detection
hysteresis
CHP Low-voltage
detection
CHP Low-voltage
detection hysteresis
VGL Low-voltage
detection
VGL Low-voltage
detection hysteresis
VCC3.3 Low-voltage
detection
VCC3.3 Low-voltage
detection hysteresis
VCC5.0 Low-voltage
detection
VCC5.0 Low-voltage
detection hysteresis
VSHVHYS
CHPLV
CHPLVHYS
VGLLV
VGLLVHYS
VCLV3
VCLVHYS3
VCLV5
VCLVHYS5
REGSEL=0,VCLVPO=0
REGSEL=0,VCLVPO=0
REGSEL=1,VCLVPO=0
REGSEL=1,VCLVPO=0
Min Typ Max Unit
90 100 110 mV
180 200 220 mV
0.35
−10%
0.30
0.25
+10%
V
0.20
0.025 0.05 0.075 V
125
150
25
150
175
25
°C
°C
°C
°C
4.8 5.1 V
0.1
0.25
0.4
V
20 24 V
0.5 1.0 1.5 V
VS+4.5
VS+5.5 V
0.2 0.4 0.7 V
4.5 5.5 V
0.2 0.4 0.7 V
2.3 2.7 V
0.1
0.25
0.4
V
3.8 4.2 V
0.1
0.25
0.4
V
www.onsemi.com
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet LV8907UW.PDF ] | |
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