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PDF TA7774FG Data sheet ( Hoja de datos )
| Número de pieza | TA7774FG | |
| Descripción | Stepping Motor Driver IC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TA7774FG (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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TA7774P/PG/F/FG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA7774P/PG, TA7774F/FG, TA7774FAG
Stepping Motor Driver IC
The TA7774P/PG and TA7774F/FG/FAG are two-phase bipolar
stepping motor driver ICs designed especially for 3.5- or 5.25-inch
FDD head actuator drives.
The ICs have a dual-bridge driver supporting the bipolar driving of
induced loads, a power-saving circuit, and a standby circuit. They
are ideal for achieving reduced set size and lower power
consumption.
Features
z One-chip two-phase bipolar stepping motor driver
z Power saving operation is available.
z Standby operation is available.
Current consumption ≤ 115 μA
z Built-in punch-through current restriction circuit for system
reliability and noise suppression
z TTL-compatible inputs INA, INB, and PS pins
z High driving ability
TA7774P/PG/F/FG
: IO(START) 350 mA (MAX): VS1 ENABLE
: IO(HOLD) 100 mA (MAX): VS2 ENABLE
TA7774FAG
: IO(START) 100 mA (MAX): VS1 ENABLE
: IO(HOLD) 50 mA (MAX): VS2 ENABLE
z Typical PKG DIP16 pin, HSOP16 pin, and SSOP16 pin
z GND pin = heatsink
TA7774PG/FG-FAG:
The TA7774PG/FG/FAG is a lead-free (Pb-free) product.
The following conditions apply to solderability:
*Solderability
1. Use of Sn-37Pb solder bath
*solder bath temperature = 230°C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
2. Use of Sn-3.0Ag-0.5Cu solder bath
*solder bath temperature = 245°C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
TA7774P/PG
TA7774F/FG
TA7774FAG
SSOP16-P-225-1.00A
Weight
DIP16-P-300-2.54A: 1.11 g (typ.)
HSOP16-P-300-1.00: 0.50 g (typ.)
SSOP16-P-225-1.00A: 0.14 g (typ.)
1 2007-6-4
1 page  
TA7774P/PG/F/FG
Electrical Characteristics
(Unless otherwise specified, Ta = 25°C, VCC = 5 V, VS1 = 12 V, VS2A = 5 V)
Characteristic
Supply current
Input voltage
Input current
TA7774P/PG
TA7774F/FG
Output
saturation
voltage
TA7774FAG
Diode forward voltage
Delay time
Operating voltage
Symbol
ICC1
ICC2
ICC3
VIN H
VIN L
VPS H
VPS L
VS2 BH
VS2 BL
IIN
IPS
VSAT 1H1
VSAT 1H2
VSAT 2H1
VSAT 2H2
VSAT L1
VSAT L2
VSAT L3
VSAT 1H1
VSAT 1H2
VSAT 2H1
VSAT 2H2
VSAT L1
VSAT L2
VSAT L3
VF U
VF L
tpLH
tpHL
VCC (opr.)
Test
Cir−
cuit
Test Condition
PS: H, VS2B: H
1 PS: L, VS2B: H
VS2B: L
Tj = 25°C
VS2B: H
―
Pin 3, 6
Pin 7
Min
―
―
70
2.0
GND
2.0
GND
Tj = 25°C
Pin 8
3.5
GND
1
Tj = 25°C, VS2B: H
Pin 3, 6
VIN / PS (2 V): sink current Pin 7
―
―
2 PS: L, VS2B: H
3 PS: H, VS2B: H
2 VS2B: H
2 PS: L, VS2B: H
3 PS: H, VS2B: H
2 VS2B: H
4 IF = 350 mA
IOUT = 100 mA
IOUT = 400 mA
IOUT = 20 mA
IOUT = 100 mA
IOUT = 20 mA
IOUT = 100 mA
IOUT = 400 mA
IOUT = 100 mA
IOUT = 200 mA
IOUT = 20 mA
IOUT = 50 mA
IOUT = 20 mA
IOUT = 100 mA
IOUT = 200 mA
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
― IN − φ
―
―
― VCC = ST
4.5
Typ.
9
8.5
90
―
―
―
―
―
―
2.6
2.6
0.9
1.2
1.6
1.8
0.03
0.15
0.35
0.9
1.0
1.6
1.7
0.03
0.15
0.2
1.5
1.0
7
2
5.0
Max
14
13
115
VCC
0.8
VCC
0.8
VCC
0.4
30
30
―
1.5
―
2.1
―
―
0.6
―
1.3
―
2.0
―
―
0.4
―
―
―
―
5.5
Unit
mA
μA
V
μA
V
V
μs
V
Recommended operating voltage
VS1 (opr.) 12 V ± 10%
VS2A (opr.) 5 V ± 10%
Operating voltage restriction VS1 ≥ VS2A
5 2007-6-4
5 Page 
Application Circuit
TA7774P/PG/F/FG
TA7774P/PG/F/FG/FAG
TA7774P/PG/F/FG/FAG
Note 1: Connect the VS2A pin to the lower supply voltage (5 V).
Note 2: Utmost care is necessary in the design of the output, VCC, VM, and GND lines since the IC may be
destroyed by short-circuiting between outputs, air contamination faults, or faults due to improper grounding, or
by short-circuiting between contiguous pins.
11 2007-6-4
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet TA7774FG.PDF ] | |
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