A3935KLQ Allegro Microsystems Inc, A3935KLQ Datasheet - Page 6

• Manufacturer Part Number: A3935KLQ
• Description: IC CTRLR MOSFET 3PH 36-SOIC
• Manufacturer: Allegro Microsystems Inc

Specifications of A3935KLQ

• Applications: DC Motor Driver, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Voltage - Load: 7 V ~ 40 V
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 135°C
• Mounting Type: Surface Mount
• Package / Case: 36-QSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output: -

A3935
ELECTRICAL CHARACTERISTICS (continued)
ENABLE = 22.5 kHz, 50% duty cycle, two phases active;unless otherwise noted
VBAT Overvoltage Gain Constant
VBAT Undervoltage
VBAT Undervoltage Hysteresis
VREG Undervoltage
VDSTH Input Range
VDSTH Input Current
Short–to–Ground Threshold
Short–to–Battery Threshold
VDRAIN-Open Bridge Operating Range
VDRAIN
VDRAIN /Open Bridge Threshold Voltage
Thermal Shut Down Temperature
Thermal Shutdown Hysteresis
1
units, within the specified maximum and minimum limits.
2
3
4
5
6
Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for individual
Negative current is defined as coming out of (sourcing) the specified device terminal.
For V
With V
For GHx: V
For GLx: V
BOOSTM
BOOST
-
Open Bridge Current
SDU
SDU
decreasing, dropout voltage measured at V
< V
Characteristics
= V
= V
BOOST
REG
Cx
– V
– V
< 40 V power dissipation in the V
GHx
GLx
, V
, V
DSL
DSL
3-Phase Power MOSFET Controller for Automotive Applications
= V
= V
GHx
GLx
– V
– V
Sx
LSS
, V
V
Symbol
V
, V
K
V
V
V
V
V
I
V
DSL(H)
VDRAIN
BDGO(th)
REG(uv)
I
BAT(ov)
BAT(uv)
BAT(uv)
STG(th)
STB(th)
DSTH
DRAIN
∆T
DSTH
DSL(H)
T
J
J
REG
REG
= V
= V
V
V
Decreasing V
Percent of V
Decreasing V
V
With a high–side driver on, as V
V
With a low–side driver on, as V
V
7 V < V
7 V < V
If V
Cx
LDO increases. Observe T
= V
at T
BAT(ov)
BAT(ov)(0)
DSTH
DRAIN
Sx
REG
– V
DRAIN
REG(ref)
– V
J
SDU
– V
> 0.8 V
– V
LSS
BAT
BAT
= –40°C to 150°C, V
= (K
< V
SDU
at V
– V
Sx
> V
< 40 V
< 40 V
– 200 mV where V
BAT(ov)
BAT(uv)
BDGOTH
BAT
REG
> V
Sx
– V
SET(ov)
STB
.
STG
LSS.
x V
causes a fault
= 0
causes a fault
then a bridge fault occurs
SET(ov)
Conditions
J
) + V
< 150°C limit.
REG(ref)
BAT
SX
SX
BAT(ov)
increases,
decreases,
= 7 to 16 V, V
= V
(0);
REG
at V
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
BOOST
DD
= 4.75 to 5.25 V,
= 16 V.
V
V
DSTH
DSTH
Min.
–0.3
160
5.0
8.0
9.9
0.5
0.3
0.3
1.0
7.0
40
–
0
–
–
Typ
5.25
170
12
10
–
–
–
–
–
–
–
–
–
1
. Max.
V
V
V
DSTH
DSTH
11.1
100
180
BAT
5.5
3.0
0.2
0.2
2.0
1.0
3.0
12
13
–
+
+
+
Units
V/V
mA
μA
°C
°C
%
V
V
V
V
V
V
V
6