LB1946-E ON Semiconductor, LB1946-E Datasheet - Page 11

• Manufacturer Part Number: LB1946-E
• Description: 55T3131
• Manufacturer: ON Semiconductor
• Type: Stepper Motor Driverr

Specifications of LB1946-E

• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 1.5A
• Driver Case Style: DIP
• No. Of Pins: 28
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC (20-Jun-2011)
• Base Number: 1946
• Rohs Compliant: Yes
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 10 V to 45 V
• Supply Current: 37 mA
• Mounting Style: Through Hole
• Package / Case: DIP-28
• Operating Temperature: - 20 C to + 85 C
• Supply Voltage (min): 4.5 V
• Lead Free Status / Rohs Status: Details

Current Path in Slow Decay Mode
Regenerative current during upper-side transistor switching operation
Current Path in Fast Decay Mode
when upper-side transistor is off
Current path when output is on
Regenerative current
Current path in fast decay mode
Current path when output is on
Motor current I
I=VE/RE
Constant
ON
OUTA
OFF
ON
OUTA
LB1946
Figure 1
SBD
I
SBD
SBD
VE
Re
Re
VREF
SBD
VREF
VREF
OUTA
3.04
OFF
VREF
ON
Sense voltage comparator
OUTA
3.04
Internal reference voltage generated
by setting voltage circuit
OFF
Sense voltage comparator
ON
VBB
VBB
Output OFF
No.7115-11/16
ILB01481
ILB01480