stk672-642b-e Sanyo Semiconductor Corporation, stk672-642b-e Datasheet - Page 3

• Manufacturer Part Number: stk672-642b-e
• Description: 2-phase Stepping Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

Package Dimensions
unit:mm (typ)
Notes
• The current range given above represents conditions when output voltage is not in the avalanche state.
• The operating substrate temperature, Tc, given above is measured while the motor is operating.
• The Tc temperature should be checked in the center of the metal surface of the product package.
in a separate document.
operation of I OH , always verify this value using an actual set.
If the output voltage is in the avalanche state, see the allowable avalanche energy for STK672-6** series hybrid ICs given
Because Tc varies depending on the ambient temperature, Ta, the value of I OH , and the continuous or intermittent
(R1.47)
1.0
1
Derating curve of motor current, I OH, vs. STK672-642B-E Operating substrate temperature, Tc
18 1.0=18.0
(18.4)
24.2
19
0.5
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
Hold mode
200Hz 2-phase excitation
10
Operating Substrate Temperature, Tc- °C
20
STK672-642B-E
30
0.4
40
4.5
I OH - Tc
50
2.0
4.0
4.45
60
70
80
90
100
ITF02588
110
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