TA7774P_07 Datasheet, PDF (1/17 Pages) Toshiba Semiconductor – Stepping Motor Driver IC

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
: I_O(START) 350 mA (MAX): V_S1 ENABLE
: I_O(HOLD) 100 mA (MAX): V_S2 ENABLE
TA7774FAG
: I_O(START) 100 mA (MAX): V_S1 ENABLE
: I_O(HOLD) 50 mA (MAX): V_S2 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.)
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2007-6-4