TA7774P/PG/F/FG

2007-6-4

1

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

One-chip two-phase bipolar stepping motor driver

Power saving operation is available.

Standby operation is available.

Current consumption ≤ 115 μA

Built-in punch-through current restriction circuit for system

reliability and noise suppression

TTL-compatible inputs INA, INB, and PS pins

High driving ability

TA7774P/PG/F/FG

TA7774FAG

Typical PKG DIP16 pin, HSOP16 pin, and SSOP16 pin

GND pin = heatsink

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.)

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