A3935KLQ Allegro Microsystems Inc, A3935KLQ Datasheet - Page 11

• 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: -

Terminal List
Number
A3935
10
12
13
14
15
16
17
18
11
1
2
3
4
5
6
7
8
9
VBOOST Boost supply output
VDRAIN
VDSTH
Name
VREG
GHC
GHB
GHA
CSP
GLC
GLB
GLA
LSS
CC
SC
SB
CB
CA
SA
DC input, drain-to-source monitor threshold voltage
Gate-drive source return, low-side
Gate-drive C output, low-side
Load phase C input
Gate-drive C output, high-side
Bootstrap capacitor C
Gate-drive B output, low-side
Load phase B input
Gate-drive B output, high-side
Bootstrap capacitor B
Gate-drive A output, low-side
Load phase A input
Gate-drive A output, high-side
Bootstrap capacitor A
Gate drive supply, positive
Current-sense input, positive-side
Kelvin connection to MOSFET high-side drains
3-Phase Power MOSFET Controller for Automotive Applications
Function
VBOOST
VDRAIN
VDSTH
VREG
GHC
GHB
GHA
CSP
GLC
GLB
GLA
LSS
CC
SC
SB
CB
SA
CA
10
11
12
13
14
15
16
17
18
Pin-out Diagram
1
2
3
4
5
6
7
8
9
Number
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CSN
VDD
CSOUT1
OVSET
ENABLE
CHI
CLO
BLO
BHI
AHI
ALO
FAULT
OVFLT
UVFLT
VBAT
GND
BOOSTD
BOOSTS
BOOSTS Boost switch, source
BOOSTD Boost switch, drain
ENABLE
¯ F ¯ ¯ A ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯
CSOUT
OVSET
OVFLT
Name
UVFLT
VBAT
GND
CLO
VDD
CSN
ALO
BLO
AHI
BHI
CHI
Ground, dc supply returns, negative
Battery supply, positive
VBAT undervoltage fault output
VBAT overvoltage fault output
Active-low fault output, primary
Gate control input A, low-side
Gate control input A, high-side
Gate control input B, high-side
Gate control input B, low-side
Gate control input C, low-side
Gate control input C, high-side
Gate output enable
DC input, overvoltage threshold setting for VBAT
Current-sense amplifier output
Logic supply, nominally +5 V
Current-sense input, negative-side
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Function
11