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LV8850GA Datasheet(PDF) 1 Page - ON Semiconductor

Part # LV8850GA
Description  Three-Phase sensorless FAN Motor Pre-Driver
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LV8850GA Datasheet(HTML) 1 Page - ON Semiconductor

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72413NK 20130626-S00001 No.A2205-1/14
Semiconductor Components Industries, LLC, 2013
July, 2013
http://onsemi.com
LV8850GA
Overview
LV8850GA is a pre-driver IC which is three-phase, sensorless and drives with PWM.
LV8850GA drives without a hole sensor, which is suitable for driving high-current motor which requires high
reliability and long life.
Function
• VCC+7V charge pump booster circuit for output drive
• Integrated Synchronous Rectifier circuit (Selected by SYNSEL pin)
• PWM or DC input signal is selectable (Selected by CTLSW pin)
• Adjustable PWM frequency (By the external capacitor at DC input mode)
• Integrated Current Limit circuit (highly accurate detection by using sensing (RFGND) pin for monitoring)
• Integrated Forward / Reverse rotation switch circuit (Selected by F/R pin)
• Integrated Lock Protection circuit with auto-recovery
• Output Lock Protection signal (RD pin) / Output 1-hole FG signal (FG pin)
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum Supply voltage
VCC max
VCC pin
18
V
Maximum VG voltage
VG max
VG pin
23
V
Maximum RD/FG pin voltage
VFG max
RD, FG pin
18
V
Maximum RD/FG pin current
IFG max
RD, FG pin
5
mA
Maximum Output pin voltage1
VO max1
UH, VH, WH pin
23
V
Maximum Output pin voltage2
VO max2
UL, VL, WL pin
6
V
Maximum Output pin current
IO max
UH, VH, WH, UL, VL, WL pin
30
mA
Maximum Input pin voltage
VL max
SOSC, LIM, VCTL, PWMOSC, CSDOSC
6
V
Maximum VREG pin current
IVREG max
VREG pin
5
mA
Allowable power dissipation2
Pd max
Mounted on a board.
*1
1.2
W
Operating temperature
Topr
– 40 to 95
deg.
Storage temperature
Tstg
– 55 to 150
deg.
Junction temperature
Tj max
150
deg.
*1: Specified board: 76.1mm x 114.3mm x 1.6mm, glass epoxy board
Ordering number : ENA2205
Bi-CMOS IC
Three-Phase sensorless
FAN Motor Pre-Driver
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
ORDERING INFORMATION
See detailed ordering and shipping information on page 13 of this data sheet.


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