A3935KLQ-T Allegro Microsystems Inc, A3935KLQ-T Datasheet - Page 4

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

Specifications of A3935KLQ-T

• 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
• Device Type: Full Bridge
• Peak Output Current: 1.6mA
• Output Resistance: 8ohm
• Input Delay: 150ns
• Output Delay: 150ns
• Supply Voltage Range: 4.75V To 5.25V
• Driver Case Style: QSOP
• No. Of Pins: 36
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

A3935
Continued on the next page…
Power Supply
V
V
Battery Voltage Operating Range
Bootstrap Diode Forward Voltage
Bootstrap Diode Resistance
Bootstrap Diode Current Limit
Bootstrap Quiescent Current
Bootstrap Refresh Time
VREG Output Voltage
VREG Dropout Voltage
Gate Drive Average Supply Current
VREG Input Bias Current
Boost Supply
VBOOST Output Voltage Limit
VBOOST Output Voltage Limit Hysteresis
Boost Switch On Resistance
Boost Switch Maximum Current
Boost Current Limit Threshold Voltage
Off Time
Blanking Time
Control Logic
Logic Input Voltage
Logic Input Current
Logic Input Hysteresis
Logic Output High Voltage
Logic Output Low Voltage
Gate Drives, GHx (internal source, or upper, switch stages)
Output High Voltage
Source Current (pulsed)
Source On Resistance
ELECTRICAL CHARACTERISTICS
50% duty cycle, two phases active;unless otherwise noted
DD
BAT
Supply Current
Supply Current
Characteristics
3
4
2
3-Phase Power MOSFET Controller for Automotive Applications
at T
∆V
I
V
Symbol
BOOSTSW
V
V
I
V
r
J
r
REGbias
r
t
BOOSTM
SDU(on)
V
DBOOT
V
V
REGDO
t
V
V
DBOOT
refresh
BOOSTM
DS(on)
V
I
V
V
DSL(H)
I
blank
= –40°C to 150°C, V
I
I
REG
I
I
I
BI(th)
I
BAT
t
DM
REG
O(H)
DD
BAT
I(1)
I(0)
Ihys
O(L)
Cx
xU
off
I(1)
I(0)
All logic inputs = 0 V
All logic inputs = 0 V
I
I
r
3 V < V
V
V
Bootstrap Capacitor, CBOOT, to V
V
V
No external dc load at VREG, C
Current into V
V
I
Increasing V
Minimum high level input for logic 1
Maximum low level input for logic 0
V
V
I
I
GHx: I
GLx: I
V
V
I
I
DBOOT
DBOOT
BOOSTD
O(H)
O(L)
xU
xU
DBOOT
Cx
Sx
BAT
REGDO
BAT
I
I
SDU
SDU
5
= V
= 0.8 V
= –150 mA, T
= –150 mA, T
= low, to guarantee ΔV = +0.5 V refresh of 0.47 μF
= 40 V, GHx = ON
= 1.6 mA
= –800 μA
= 7 to 40 V, V
= 7 V
= 10 V, T
= 10 V, T
xU
DD
xU
(100 mA) = (V
= –I
= –I
REG
= V
< 300 mA
= –10 mA, V
= –10 mA, V
Cx
Cx
– V
BOOST
BOOSTS
= 10 mA, V
= 100 mA
BOOST
J
J
BAT
Cx
= 25°C
= 135°C
J
J
< 12 V
= 25°C
= 135°C
– V
– V
BOOST
= 7 to 16 V, V
, ENABLE = 0
DBOOT
LSS
Sx
REG
DBOOT
Conditions
= 0
DBOOT
= 0
from Boost Regulator
, I
(150 mA)
REG
(50 mA)) / 100 mA
= V
= 40 mA
REG
Cx
REG
DD
= 10 μF
– V
= 4.75 to 5.25 V, ENABLE = 22.5 kHz,
– V
Sx
Cx
= +10 V
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
V
V
V
–150
Min.
12.7
14.9
0.45
2.26
0.26
100
100
REG
REG
400
7.0
0.8
1.5
2.5
3.0
2.0
0.8
4.0
7.0
DD
10
35
50
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Typ
800
0.9
1.4
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1
. Max.
–1150
V
V
16.3
0.55
180
300
220
500
300
7.0
3.0
2.0
2.3
7.5
2.0
4.0
3.3
8.0
0.8
0.4
40
30
14
40
10
15
REG
REG
–
–
–
–
–
–
Units
mA
mA
mA
mA
mA
mV
mA
mV
mA
mA
μA
μA
μA
μs
μs
ns
V
V
V
Ω
V
V
V
Ω
V
V
V
V
V
V
V
Ω
Ω
4