Monolithic Digital IC PWM Constant Current Control 1-2 Phase Excitation Stepping Motor Driver
Ordering number : ENN7947A
Monolithic Digital IC
LB11948T
www.DataSheet4U.com
PWM Constant Current Control 1-2 Phase ...
Ordering number : ENN7947A
Monolithic Digital IC
LB11948T
www.DataSheet4U.com
PWM Constant Current Control 1-2 Phase Excitation Stepping Motor Driver
Overview
The LB11948T is a low saturation
voltage output PWM current control bipolar drive stepping motor driver. It is optimal for use as the driver for the miniature low-
voltage stepping motors used in portable electronic equipment such as portable thermal printers.
Features
PWM current control (external excitation) Simultaneous on state prevention function (through current prevention) Thermal shutdown circuit Noise canceller function Low-power mode control pin
Specifications
Maximum Ratings at Ta = 25°C
Parameter VS supply
voltage Logic system supply
voltage Peak output current Continuous output current Emitter output
voltage Input
voltage Allowable power dissipation Operating temperature Storage temperature Note ∗: Specified PCB: 114.3 × 76.1 × 1.6 mm Symbol VS VCC IOpeak IOmax VE VIN Pdmax Topg Tstg Mounted on the specified PCB* tW ≤ 20 µS Conditions Ratings −0.3 to +18 −0.3 to +18 0.5 0.4 1.0 −0.3 to VCC 1.2 −20 to +85 −40 to +150 Unit V V A A V V W °C °C
Recommended Operating Conditions at Ta = 25°C
Parameter VS supply
voltage VCC supply
voltage Reference
voltage Symbol VS VCC VREF Conditions Ratings 3.0 to 15 3.0 to 15 0.0 to 0.5 Unit V V V
Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of ...