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PDF KA2821D Data sheet ( Hoja de datos )
| Número de pieza | KA2821D | |
| Descripción | Stepping Motor Driver | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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KA2821D
Stepping Motor Driver
Features
• Built-in chip enable function (Active low)
• Low saturation voltage
• Low power dissipation
• Input level: TTL, LSTTL, 5V CMOS compatible
• Standard MPU direct interface
• Built-in Thermal Shutdown(TSD) circuit
• 2-CH H-bridge driver
www.fairchildsemi.com
Description
The KA2821D is a monolithic integrated circuit, and suit-
able as a two-phase stepping motor driver of a 3.5-inch FDD
system.
20-SOP-300
Typical Application
• Floppy disk drive (FDD)
• General stepping motor
Ordering Information
Device
KA2821D
Package
20-SOP-300
Operating Temp.
−20 ~ +75°C
©2000 Fairchild Semiconductor International
1
Rev. 1.0.2
May. 2000.
1 page  
KA2821D
Electrical Characteristics
(Ta=25°C, VCC=5V, VSA=12V, VSB=12V, unless specified otherwise)
Parameter
Digital input “L” voltage
Digital high level input voltage
Digital low input current
Digital high input current
Supply current
Output sustain voltage
VSA, B output saturation voltage
Output clamp voltage
Output delay time
TSD operating temperature
TSD hysterisis
Symbol
VIL
VIH
IIL
IIH1
IIH2
IVCCL
IVSL
IVCCH
IVSH
VSUS
VSAT1
VFU
VFL
TPLH
TPHL
TSD
∆TSD
Conditions
-
-
VIN=0.8V
VIN=2.0V
VIN=5V
CE=0.8V
CE=0.8V
CE=0.8V
CE=2.0V
IO=10mA, CE=0.8V
IO=300mA, CE=2.0V
IO=130mA (Upper)
IO=330mA (Lower)
Input pulse (2kHz)
Input pulse (2kHz)
-
-
Min. Typ. Max. Units
- - 0.8 V
2.0 - - V
- 0 10 µA
- 1 10 µA
- 0.3 1.0 mA
- 25 3 mA
- 6 10 mA
- 25 33 mA
- 1 2 mA
18 - - V
- 1.5 2.0
V
- 3.0 5.0
V
- 1.5 2.0
V
- 1.0 5.0 µs
- 1.0 5.0 µs
125 150 -
°C
- 25 -
°C
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet KA2821D.PDF ] | |
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