A4936METTR-T Allegro Microsystems Inc, A4936METTR-T Datasheet - Page 3

• Manufacturer Part Number: A4936METTR-T
• Description: 3-Phase Brushless DC Motor Pre-Driver
• Manufacturer: Allegro Microsystems Inc

Specifications of A4936METTR-T

• Applications: DC Motor Driver, Brushless (BLDC), 3 Phase
• Number Of Outputs: 1
• Operating Temperature: -20°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Supply: -
• Voltage - Load: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1347-2

FGFB
HA–
HB+
HB–
HC+
HC–
FG+
FG–
A4936
1
2
3
4
5
6
7
8
Pin-out Diagram
Terminal List Table
Number
PAD
10
12
13
14
15
16
17
11
1
2
3
4
5
6
7
8
9
SENSE
HBIAS
Name
FGFB
GND
HC+
VCP
GLC
HB+
FG+
CP1
CP2
VBB
24
23
22
21
20
19
18
17
HA-
HB-
HC-
FG-
NC
GHA
SB
GHB
SC
GHC
GLA
GLB
GLC
Hall input A
Hall input B
Hall input B
Hall input C
Hall input C
FG input
FG amplifier feedback output
FG input
No internal connection
Ground
Hall bias power supply output
Charge pump capacitor terminal
Charge pump capacitor terminal
Supply voltage
Reservoir capacitor terminal
Sense resistor connection
Low-side gate drive C
100 nF
100 nF
System
Logic
HALL
HALL
HALL
Function
BRAKE
2 kΩ
HBIAS
STOP
PWM
GND
HA+
HA–
HB+
HB–
HC+
HC–
FGS
CLD
DIR
3-Phase Brushless DC Motor Pre-Driver
Commun-
Detect
ication
Logic
Lock
Functional Block Diagram
Number
VREG
Enable
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
–
Control
Logic
OVP
BRAKE
Name
STOP
PWM
GHC
GHB
GHA
FGS
GLB
GLA
CLD
HA+
PAD
DIR
SC
SB
SA
CP1
100 nF
V
REG
Phase A
Low-side gate drive B
Low-side gate drive A
High-side gate drive C
High-side source connection C
High-side gate drive B
High-side source connection B
High-side gate drive A
High-side source connection A
FG output
Locked rotor detect timing capacitor
Logic input: motor direction
Logic input: external PWM control
Logic input: output disable
Logic input: motor brake
Hall input A
Exposed Thermal Pad
Drive
Gate
Charge
+
–
Pump
200 mV
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
V
–
+
CP
CP2
Function
VCP
VBB
GHA
SA
GLA
SENSE
GHB
SB
GLB
GHC
SC
GLC
FGFB
FG–
FG+
100 nF
100 nF
Phase A of three
phases shown
V
IN
3