A3948SLB Allegro Microsystems Inc, A3948SLB Datasheet - Page 3

• Manufacturer Part Number: A3948SLB
• Description: IC MOTOR DRIVER PWM FULL 24-SOIC
• Manufacturer: Allegro Microsystems Inc

Specifications of A3948SLB

• Applications: PWM Motor Driver
• Number Of Outputs: 1
• Current - Output: ±1.5A
• Voltage - Load: 20 V ~ 50 V
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Operating Current: 10mA
• Operating Temperature Classification: Commercial
• Package Type: SOIC W
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3948
DMOS FULL-BRIDGE
PWM MOTOR DRIVER
STROBE
ENABLE
RANGE
CLOCK
PHASE
MODE
DATA
OSC
SUPPLY
LOGIC
GROUND
GROUND
GROUND
PROGRAMMABLE
GROUND
SUPPLY
ENABLE
CLOCK
PHASE
LOGIC
PWM TIMER
V
DATA
CHARGE PUMP
OSC
DD
CP
CP
2
1
BANDGAP
12
10
11
8
9
1
2
3
4
5
6
7
C
9
TSD
V
REG
DD
V
FIXED OFF
DD
CONTROL LOGIC
BLANK
CHARGE PUMP
DECAY
SERIAL
SERIAL PORT
FAULT DETECT
PORT
VOLTAGE &
UNDER-
V
BB
19
24
20
18
17
13
23
22
21
16
15
14
SLEEP
MODE
Dwg. PP-069-1A
CP
V
RANGE
LOAD
SUPPLY
GROUND
SENSE
OUT
MODE
REF
STROBE
OUT
GROUND
REG
A
B
CHARGE
PUMP
CURRENT
Note that the A3948SLB (SOIC) and A3948SB
(DIP) do not share a common terminal
assignment.
SENSE
CURRENT
DETECT
RANGE
ZERO
LOAD
SUPPLY
V
REFERENCE
BB
BUFFER &
DIVIDER
+
REGULATOR
BANDGAP
V
REF
OUT
OUT
SENSE
REG
A
B
R
S
Dwg. FP-048
C
S
V
REF