LV8824QA Datasheet PDF - ON Semiconductor
| Part Number | LV8824QA | |
| Description | PWM Driver IC | |
| Manufacturers | ON Semiconductor | |
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There is a preview and LV8824QA download ( pdf file ) link at the bottom of this page. Total 13 Pages | ||
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Ordering number : ENA2083
LV8824QA
Bi-CMOS IC
For Brushless Motor Drive
PWM Driver IC
http://onsemi.com
Overview
The LV8824QA is a PWM pre-driver IC suitable for use in 3-phase brushless motors. This IC was designed based on
the assumption that Nch FETs are used as the upper and lower output transistors. The rotational speed is controllable by
inputting PWM pulse or DC voltage externally and changing duty. LV8824QA incorporates latch-type constraint
protection circuit.
Features
• IO max = 50mA
• Speed control and synchronous rectification by PWM direct input (3.3V input-ready) and DC voltage.
• 3-Hall FG output
• Latch type constraint protection circuit (latch is released by S/B and F/R.)
• Forward/reverse switch circuit, Hall bias pin
• Power saving circuit
• Current limiter circuit, Low-voltage protection circuit, Thermal shut-down circuit
• Charge pump circuit (external Nch/Nch), 5V regulator output.
• Start/Brake circuit
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
Output current
Allowable power dissipation
VCC max
VG max
IO max
Pd max
VCC pin
VG pin
Mounted on a circuit board.*1
34
42
50
1.45
V
V
mA
W
Junction temperature
Tj max
150 °C
Operating temperature
Topr
-40 to +105 °C
Storage temperature
Tstg
-55 to +150 °C
*1 : Specified circuit board : 100mm × 100mm × 1.6mm, glass epoxy (double-layer board)
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
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.
Semiconductor Components Industries, LLC, 2013
May, 2013
70412 SY 20120626-S00007 No.A2083-1/13
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LV8824QA
Three-phase HALL logic truth table (IN = “High” means the following state: IN+ > IN-.)
("Upper gate = VH" and "lower gate = UL" mean the following state: the upper FET connected
F/R = High
IN1 IN2 IN3
to VH pin is on and the lower FET connected to UL pin operates by PWM signal.)
F/R = Low
Driving output
IN1 IN2 IN3
Upper gate
Lower gate (PWM)
HLHLHL
VH
UL
HL L LHH
WH
UL
HHL L LH
WH
VL
LHLHLH
UH
VL
LHHHL L
UH
WL
L LHHHL
VH
WL
3FG output
IN1 IN2 IN3 3FG
HLHL
HL LH
HHL L
LHLH
L HH L
L LHH
S/B pin, PWMIN pin
Input state
High or Open
Low
S/B pin
Stop (short brake)
Start
PWMIN pin
Output OFF
Output ON
Internal Equivalent Circuit and Sample External Component Circuit
CTL input PWMIN input S/B input
PWM
CTL
PWMIN S/B VREG
VCC
F/R input
VREG
F/R
STIME
PWM
F/R
SYNC TIME
A/D (2bit)
CSD
CSD
OSC
CTL
PWMIN
Start/
Brake
5VREG
CHARGE
PUMP
VG
CP2
CP1
LVSD
UH
UOUT
UL
3FG output 3FG
MOSC
LDA
3FG
CONTROL
LOGIC
PRE
DRIVER
VREG
MODE
FG
MODE
SELECT
A/D(2bit)
HALL HYS AMP
HB
GND
IN1+ IN1- IN2+ IN2- IN3+ IN3-
HB
CURR
LIM
VCC
VH
VOUT
VL
WH
WOUT
WL
RF
+ VM
GND
No.A2083-5/13
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LV8824QA electronic component. |
| Information | Total 13 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LV8824QA.PDF Datasheet ] | |
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