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Semiconductor Components Industries, LLC, 2013
December, 2013
http://onsemi.com
LB1848MC
Overview
The LB1848MC is a 2-channel low-voltage, low saturation voltage type bidirectional motor driver IC that is
optimal for use as 2-phase stepping motor driver in printers, floppy disk drives, cameras and other portable
equipments. The output circuits are of the bipolar type, with pnp transistors in the upper side and npn
transistors in the lower side, and they achieve low saturation output and low power characteristics despite
being provided in a miniature package.
The LB1848MC can directly control a motor from signals from a microcontroller. The LB1848M is optimal for
2-phase excitation drive for 2-phase stepping motors using 3-input logic (ENA, IN1, and IN2).
The LB1848MC has a built-in thermal shutdown circuit to protect itself from operating at exceedingly high
temperature even if the IC outputs are shorted. Additionally, the MFP-10S miniature package used supports
reduced-space mounting.
Function
Optimal for 2 phase excitation drive for 2-phase stepping motor
Low saturation voltage. VO(sat) = 0.55 V typical at IO = 400 mA
Standby current: zero
Thermal shutdown circuit
Miniature package: MFP-10S (6.5 x 5.1 mm2)
Through-current prevention circuit
“Soft off” function that reduces power supply line noise when switching from drive to standby modes.
(Requires the use of one external capacitor.)
No limitations on the magnitude relationship between the power supply voltage (VCC) and the input voltage
(VIN)
Typical Applications
Blu-ray pickup lens
CCTV
POS printer
Security camera
DSC
Pin Assignment
Monolithic Digital IC
Low-Voltage/Low Saturation Voltage Type
Bidirectional Motor Driver
Application Note
Verzeichnis
- ・ Konfiguration des Pinbelegungsdiagramms on Seite 1 Seite 6
- ・ Abmessungen des Paketumrisses on Seite 2
- ・ Paket-Footprint-Pad-Layout on Seite 2
- ・ Markierungsinformationen on Seite 13
- ・ Blockdiagramm on Seite 3
- ・ Typisches Anwendungsschaltbild on Seite 1 Seite 10
- ・ Technische Daten on Seite 4
- ・ Anwendungsbereich on Seite 1
- ・ Elektrische Spezifikation on Seite 4
