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The ultimate solution of lift camera drive

The ultimate solution of lift camera drive

  • Categories:Product knowledge
  • Author: Torr Microelectronics
  • Origin:original
  • Time of issue:2020-12-28
  • Views:0

(Summary description)The TMI88221 device is a stepper motor driver used in TV cameras, network cameras and other low-noise stepper motor applications

The ultimate solution of lift camera drive

(Summary description)The TMI88221 device is a stepper motor driver used in TV cameras, network cameras and other low-noise stepper motor applications

  • Categories:Product knowledge
  • Author: Torr Microelectronics
  • Origin:original
  • Time of issue:2020-12-28
  • Views:0
Information

        The TMI88221 device is a stepper motor driver used in TV cameras, network cameras and other low-noise stepper motor applications. TMI88221 has a wide input voltage range of 4V to 20V, can be powered by a DC power supply and single or multi-cell lithium batteries, and supports 1A RMS current (peak current 1A).

        Different from traditional chips, TMI88221 built-in micro-stepping algorithm effectively solves the common jitter and noise problems of motor drive, and does not require users to set PWM control signals, and only needs to control 2 logic signals to switch 3 speed control modes. On this basis, different speed regulation schemes can be provided according to user needs.

        TMI88221 has built-in under-voltage protection and over-temperature protection, which can effectively guarantee the stability of chip work.

       TMI88221 adopts ESOP8 package, external application devices only need 2 chip capacitors and 1 electrolytic capacitor, which greatly saves layout space.

882221

Functions and features:

1. Drive a stepper motor with built-in micro-step algorithm to reduce the noise and jitter of the stepper motor

2. Three preset speed levels

3. 4V to 20V wide operating voltage of VCC

4. LDMOS RDSON (HS + LS): 0.83Ω (typical value)

5.1.0A peak current drive

6. No need for PWM control signal

7. Low-power sleep mode

8. VCC undervoltage lockout (UVLO)

9. Thermal shutdown protection (TSD)

 
application:

1. TV camera

2. Network Camera

3. Industrial equipment

4. Other low noise stepper motors

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