tb6526afg TOSHIBA Semiconductor CORPORATION, tb6526afg Datasheet

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tb6526afg

Manufacturer Part Number
tb6526afg
Description
Chopper?type Bipolar Stepping Motor Control Driver Ic
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet

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TB6526AFG
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CHOPPER−TYPE BIPOLAR STEPPING MOTOR CONTROL DRIVER IC
The TB6526AF/AFG is a PWM chopper−type sinusoidal
micro−step bipolar stepping motor driver IC.
It is capable of 1−2 and 2W1−2 phase excitation modes and
forward and reverse rotation modes, low−vibration, low−torque
ripple, and high−efficiency driving.
FEATURES
TB6526AFG:
The TB6526AFG is a Pb-free product.
The following conditions apply to solderability:
*Solderability
1.
2.
Forward and reverse rotations are available.
1−2, 2W1−2 phase driving is available.
Structured by Bi−CMOS process.
Package: SSOP24−P−300−1.00B
Externally equipped with PNP output transistor.
Reset and enable pins are attached.
Use of Sn-37Pb solder bath
*solder bath temperature = 230°C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
Use of Sn-3.0Ag-0.5Cu solder bath
*solder bath temperature = 245°C
*dipping time = 5 seconds
*the number of times = once
*use of R-type flux
TOSHIBA Bi−CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC
TB6526AF/AFG
1
Weight: 0.27 g (Typ.)
TB6526AF
2006-3-6

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tb6526afg Summary of contents

Page 1

... Structured by Bi−CMOS process. Package: SSOP24−P−300−1.00B Externally equipped with PNP output transistor. Reset and enable pins are attached. TB6526AFG: The TB6526AFG is a Pb-free product. The following conditions apply to solderability: *Solderability 1. Use of Sn-37Pb solder bath *solder bath temperature = 230°C ...

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BLOCK DIAGRAM 2 TB6526AF 2006-3-6 ...

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PIN FUNCTION PIN No. SYMBOL 1 CK CLOCK Signal Input 2 MODE Excitation Mode Setting terminal 3 CA Noise reduction condenser outer terminal 4 V Power voltage supply terminal for Logic CC 5 RESET RESET Signal Input terminal 6 NFB ...

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TRUTH TABLE A INPUT CK1 CW / CCW RESET TRUTH TABLE B INPUT MODE (EXCITATION) MODE L 1−2 phase H 2W1−2 phase 1−2 PHASE EXCITATION MODE ENABLE ...

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EXCITATION (MODE : H, CW mode) 5 TB6526AF 2006-3-6 ...

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OUTPUT CURRENT VECTOR OR BIT θ θ0 θ1 θ2 θ3 θ4 θ5 θ6 θ7 θ8 (Normalize to 90 deg for each one step) ROTATION ANGLE VECTOR LENGTH IDEAL TB6526AF/AFG IDEAL 0° 0° 100 11.25° 10.20° 100 22.5° 20.03° 100 33.75° ...

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OUTPUT CIRCUIT INPUT CIRCUIT CK,CW / CCW, RESET , ENABLE , MODE Terminals OSC : Terminals 7 TB6526AF 2006-3-6 ...

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OSC frequency calculation V is increased by C charging through the constant current source (150 µA). OSC OSC V is calculated by following equation. OSC − 6 × × 150 OSC C OSC Q is turned ...

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ENABLE AND RESET FUNCTION AND MO SIGNAL Fig.1. 1−2 phase drive mode (MODE ENABLE signal disables only Output signal. Internal logic functions are proceeded by CK signal without regard to ENABLE signal. Therefore, Output Current is initiated from the proceeded ...

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ABSOLUTE MAXIMUM RATING CHARACTERISTIC Supply Voltage Output Voltage Output Current Input Voltage Power Dissipation Operating Temperature Storage Temperature Feed Back Voltage Note 1: No heat sink Note 2: When mounted on substrate (50 × 50 × 1 10%) ...

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ELECTRICAL CHARACTERISTICS Unless otherwise specified CHARACTERISTIC High Input Voltage Low Input Current Current Consumption V Pin CC Comparator Reference Voltage Level Output Inter−channel Differential Maximum OSC Frequency Minimum OSC Frequency OSC Frequency (Ta = 25° ...

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ELECTRICAL CHARACTERISTICS Unless otherwise specified OUTPUT SECTION CHARACTERISTIC Upper Side Driving Current Lower Side Saturation Voltage Upper Side Diode Forward Voltage Lower Side Output Dark Current ( channel) NF Dark Current (1 channel) 2W1−2 phase 1−2 phase excitation ...

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ELECTRICAL CHARACTERISTICS Unless otherwise specified CHARACTERISTIC Reference Voltage Output Tr Switching Output Leakage Current Off Current MA MB (Ta = 25° load inductance : ...

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TEST CIRCUIT (H) Note: When input voltage V IN (H) TEST CIRCUIT (H) IN (L) IN (L) TB6526AF/AFG , V is applied, verify the output function (NF voltage ...

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TEST CIRCUIT TEST CIRCUIT NF2 NF3 Note (100%), V NF2 NFA (100%), V NF3 NFA NF TB6526AF/AFG , ∆V O ...

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TEST CIRCUIT OSC TEST CIRCUIT TB6526AF/AFG TB6526AF/AFG 16 TB6526AF 2006-3-6 ...

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TEST CIRCUIT SAT TEST CIRCUIT F−U Note: Not to take GND with any non−connecting pins. TB6526AF/AFG F−L TB6526AF/AFG 17 TB6526AF 2006-3-6 ...

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TEST CIRCUIT ∆V NF1 TEST CIRCUIT TB6526AF/AFG TB6526AF/AFG 18 TB6526AF 2006-3-6 ...

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TEST CIRCUIT 11 AC ELECTRICAL CHARACTERISTICS, TEST CIRCUIT (OSC) − OUT TB6526AF/AFG 19 TB6526AF − OUT (OSC) 2006-3-6 ...

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TB6526AF 2006-3-6 ...

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APPLICATION CIRCUIT Note 1: A change in a step at the time of the micro−step can be improved smoothly with the capacitor of CA, CB. Note 2: GND pattern to be laid out at one point in order to prevent ...

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PACKAGE DIMENSIONS SSOP24−P−300−1.00B Weight: 0.27 g (Typ.) 22 TB6526AF Unit: mm 2006-3-6 ...

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Notes on Contents 1. Block Diagrams Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for explanatory purposes. 2. Equivalent Circuits The equivalent circuit diagrams may be simplified or some parts of ...

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Points to remember on handling of ICs (1) Heat Radiation Design In using an IC with large current flow such as power amp, regulator or driver, please design the device so that heat is appropriately radiated, not to exceed the ...

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TB6526AF 2006-3-6 ...

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