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TB62217AFG

Features: • It is possible to supply external voltage by incorporating three step-down 1.5 V to 5.0 V variable DC-DC converters.• A Reset function has been added making it possible to deliver an external reset signal.• The DMOS motor driver output of this monolithic BiCD IC is ca...

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TB62217AFG: Features: • It is possible to supply external voltage by incorporating three step-down 1.5 V to 5.0 V variable DC-DC converters.• A Reset function has been added making it possible to de...

TB62217AFG Data Sheet

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Part Number:
TB62217AFG
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• It is possible to supply external voltage by incorporating three step-down 1.5 V to 5.0 V variable DC-DC converters.
• A Reset function has been added making it possible to deliver an external reset signal.
• The DMOS motor driver output of this monolithic BiCD IC is capable of achieving a low ON resistance of Ron =0.6    
   (@Tj = 25°C, 0.6A: typ.)
• With two sets of internal 16-bit shift register and latch, the IC can drive stepping motors using a 4-bit micro step.
• Equipped protection circuits: DC-DC converter over current/increased voltage protection, motor over current protection and total IC over temperature protection.
   In addition, equipped with Power On Reset circuit for initializing the IC when the power is turned on and off.
• Package: 64-pin Pb-free QFP package with a heat sink (THQFP64-P-1010-0.50)
• Motor maximum output pressure: 50 V
• On-chip Mixed Decay Mode enables specification of four-stage attenuation ratio.
• Chopping frequency can be set by external oscillator. High-speed chopping is possible at 100 kHz or higher.


Pinout

Connection Diagram


Specifications

Characteristics
Symbol
Rating
 Unit
Remark
Motor output voltage
VM
50
V
  
Motor output current

                                  (Note 1)

                                  (Note 2)
IOST
1.3
A/phase
 Stepper
IOSAP
8 ?
A
 DC motor S (500 ns)
IOSAE
3
A
 DC motor S (500 ns)
DC-DC converter output current
ICO A
750
mA
  
ICO B
400
mA
  
ICO C
400
mA
  
Current detection pin voltage
VRS
VM ± 4.5
V
  
Reset pin supply voltage
VRST
5
V
  
Reset output current
IRST
-60
mA
  
Logic input voltage
VIN
−0.4 to 6.0
V
  
Power dissipation
PD
1.25
W
When Ta exceeds 25°C, this
figure must be de-rated by
10.0mW /°C. (Note 3)
4.2
W
When Ta exceeds 25°C, this
figure must be de-rated by
33.65mW /°C. (Note 4)
Operating temperature
Topr
−40 to 85
 
Storage temperature
Tstg
−55 to 150
 
Junction temperature
Tj
150
 
Note 1: See other tables for pairing.
Note 2: Peak maximum during DC motor drive (below 500 ns)
Note 3: Stand-alone measurement (Ta = 25°C)
Note 4: When the IC is mounted on a dedicated board (Ta = 25°C)
             Ta: IC ambient temperature
             Topr: IC ambient temperature during operation
             Tj: IC chip temperature during operation
             The maximum Tj value is limited by the TSD (thermal shut-down circuit) temperature


Description

The TB62217FG is a dual stepping motor driver driven by PWM chopper micro step, with 3- channel step-down DC-DC converters and an external-IC reset function.

To drive a two-phase bipolar-type stepping motor, a 16-bit latch and a 16-bit shift register are built into the IC. The IC is suitable for driving stepping motors with low-torque ripple in a highly efficient manner. In addition, a signal axis can be switched to serve as a PWM driver for two DC motors.

By equipping the stepping motor driver with Selectable Mixed Decay Mode for switching the attenuation ratio during chopping, and also equipping it with a DC-DC converter, it is possible for the IC to supply external voltage.

With a built-in timer that starts running when the IC is supplied with power, the IC can be used in resetting (initializing) external devices.




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