LV8850GA Datasheet, PDF (1/14 Pages) ON Semiconductor – Three-Phase sensorless FAN Motor Pre-Driver

Ordering number : ENA2205
LV8850GA
Bi-CMOS IC
Three-Phase sensorless
FAN Motor Pre-Driver
http://onsemi.com
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
Maximum Supply voltage
Maximum VG voltage
Maximum RD/FG pin voltage
Maximum RD/FG pin current
Maximum Output pin voltage1
Maximum Output pin voltage2
Maximum Output pin current
Maximum Input pin voltage
Maximum VREG pin current
Allowable power dissipation2
VCC max
VG max
VFG max
IFG max
VO max1
VO max2
IO max
VL max
IVREG max
Pd max
VCC pin
VG pin
RD, FG pin
RD, FG pin
UH, VH, WH pin
UL, VL, WL pin
UH, VH, WH, UL, VL, WL pin
SOSC, LIM, VCTL, PWMOSC, CSDOSC
VREG pin
Mounted on a board. ^*1
Operating temperature
Topr
Storage temperature
Tstg
Junction temperature
Tj max
*1: Specified board: 76.1mm x 114.3mm x 1.6mm, glass epoxy board
Ratings
Unit
18
V
23
V
18
V
5
mA
23
V
6
V
30
mA
6
V
5
mA
1.2
W
– 40 to 95
deg.
– 55 to 150
deg.
150
deg.
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.
Semiconductor Components Industries, LLC, 2013
July, 2013
72413NK 20130626-S00001 No.A2205-1/14