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Part Number: LB11946
Description: The LB11946 is a stepping motor driver IC that implements PWM current control bipolar drive with a fix...
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LB11946
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General Description
LB11946 General Description
The LB11946 is a stepping motor driver IC that implements PWM current control bipolar drive with a fixed off time. This IC features 15 current setting levels using a fixed VREF voltage and support for microstepping drive from 1-2 phase excitation drive to 4W1-2 phase excitation drive. This device is optimal for driving stepping motors such as those used for carriage drive and paper feed in printers.
LB11946 Maximum Ratings
| Parameter | Symbol | Conditions | Ratings | Unit |
| Motor supply voltage | VBB | 50 | V | |
| Peak output current | IO peak | tw 20 S | 1.2 | A |
| Continuous output current | IO max | 1.0 | A | |
| Logic system supply voltage | VCC | 7.0 | V | |
| Logic system supply voltage | VIN | 0.3 to VCC | V | |
| Emitter output voltage | VE | 1.0 | V | |
| VE | VCC=5 V specifications | 0.5 | V | |
| Allowable power dissipation (IC internal) | Pdmax | Ta=25°C, independent IC | 3.0 | W |
| Operating temperature | Topr | -20 to +85 | ||
| Storage temperature | Tstg | -55 to +150 |
LB11946 Features
• PWM current control (with a fixed off time)
• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)
• Current attenuation switching function (with slow decay, fast decay, and mixed decay modes)
• Built-in upper and lower side diodes
• Simultaneous on state prevention function (through current prevention)
• Noise canceller function
• Thermal shutdown circuit
• Shutoff on low logic system voltage circuit
• Low-power mode control pin
• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)
• Current attenuation switching function (with slow decay, fast decay, and mixed decay modes)
• Built-in upper and lower side diodes
• Simultaneous on state prevention function (through current prevention)
• Noise canceller function
• Thermal shutdown circuit
• Shutoff on low logic system voltage circuit
• Low-power mode control pin
LB11946 Connection Diagram
LB11946
PDF/DataSheet Download
- Datasheet: LB11946
- File Size: 1202795 KB
- Manufacturer: SANYO [Sanyo Semicon Device]
- Click here to Download
- ·LB1000-SI
- LEM [LEM]
- Current Transducer LB 1000-SI/SP2
- 33010 KB
- ·LB1000-SI/SP2
- LEM [LEM]
- Current Transducer LB 1000-SI/SP2
- 33010 KB
- ·LB100-S
- LEM [LEM]
- Current Transducer LB 100-S/SP3
- 54384 KB
- ·LB100-S/SP3
- LEM [LEM]
- Current Transducer LB 100-S/SP3
- 54384 KB
- ·LB1011AB
- ETC [ETC]
- LH1263 E&M Signaling Circuit
- 664865 KB
- ·LB1013AD
- ETC [ETC]
- LH1263 E&M Signaling Circuit
- 664865 KB
- ·LB104V03
- PHILIPS [Philips Semiconductors]
- Liquid Crystal Display
- 386221 KB
- ·LB104V03-A1
- PHILIPS [Philips Semiconductors]
- Liquid Crystal Display
- 386221 KB
LB11946 Relative Products
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The LB11920 is a direct PWM drive motor driver IC for 3-phase power brushless motors. The PWM duty can be controlled by IC inputs, and it can be used over the wide supply voltage range of 9.5 to 30 V.
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