TA7774P Toshiba, TA7774P Datasheet

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TA7774P

Manufacturer Part Number
TA7774P
Description
Manufacturer
Toshiba
Datasheet

Specifications of TA7774P

Operating Temperature Classification
Commercial
Package Type
PDIP
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / Rohs Status
Not Compliant

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TA7774PG
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TA7774PG
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20 000
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.
induced loads, a power-saving circuit, and a standby circuit. They
are ideal for achieving reduced set size and lower power
consumption.
Features
TA7774PG/FG-FAG:
The TA7774PG/FG/FAG is a lead-free (Pb-free) product.
The following conditions apply to solderability:
*Solderability
1.
2.
The ICs have a dual-bridge driver supporting the bipolar driving of
TA7774FAG
One-chip two-phase bipolar stepping motor driver
Power saving operation is available.
Standby operation is available.
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
Typical PKG DIP16 pin, HSOP16 pin, and SSOP16 pin
GND pin = heatsink
Current consumption ≤ 115 μA
: I
: I
: I
: I
O
O
O
O
Use of Sn-37Pb solder bath
*solder bath temperature = 230°C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
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
(START) 350 mA (MAX): V
(HOLD) 100 mA (MAX): V
(START) 100 mA (MAX): V
(HOLD) 50 mA (MAX): V
TA7774P/PG, TA7774F/FG, TA7774FAG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
S2
S2
S1
S1
ENABLE
ENABLE
ENABLE
ENABLE
1
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.)
TA7774P/PG
TA7774F/FG
TA7774FAG
SSOP16-P-225-1.00A
TA7774P/PG/F/FG
2007-6-4

Related parts for TA7774P

TA7774P Summary of contents

Page 1

... V ENABLE O S2 Typical PKG DIP16 pin, HSOP16 pin, and SSOP16 pin 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 ...

Page 2

... Standby signal input terminal, Truth Table (9) V High-voltage power supply terminal (10) φB Output B φ B Output (11 (F) GND GND terminal 13 / (F) GND GND terminal 14 / (14) φ Α Output Α (15) φA Output (16) V High-voltage power supply terminal TA7774F/FG TA7774P/PG/F/FG TA7774P/PG/F/FG/FAG Functional Description 2 2007-6-4 ...

Page 3

... Truth Table 1 Input PS IN φ Truth Table Power off (standby) H Operation Note: Apply supply terminal. S2A Output φ H Enable Enable Enable V (power saving Enable V (power saving TA7774P/PG/F/FG 2007-6-4 ...

Page 4

... 1.4 (Note 1) 2.7 (Note 1.4 (Note 3) 0.78 (Note 4) T − opr T −55 to 150 stg 4 TA7774P/PG/F/ Unit Note 1: IC only V Note 2: This value is obtained if mounting × 50 × 0.8 mm PCB, 60% or more of which is occupied by copper. mA Note 3: This value is obtained if mounting × 30 × 1.6 mm PCB, 50% or more of which is occupied by copper ...

Page 5

... PS S2B 3 PS S2B S2B 350 mA F ― IN − φ ― ± 10% S1 (opr ± 10% S2A (opr.) ≥ V S2A 5 TA7774P/PG/F/ S2A Min Typ. Max ― ― 8 115 2.0 ― Pin 3, 6 GND ― 0.8 2.0 ― Pin 7 GND ― 0.8 3.5 ― ...

Page 6

... Test Circuit CC1 CC2 , CC3 TA7774P/PG/F/FG/FAG 6 TA7774P/PG/F/FG Item CC1 CC2 ― CC3 I a ― ― ― a ― ― ― 2007-6 ...

Page 7

... SAT 1H1 Note: Adjust R to correspond Item SAT 1H1 ― ― SAT 1H2 ― ― SAT L2 ― ― SAT L3 ― ― SAT 1H2 SAT L2 SAT ― ― ― ― ― ― ― ― ― TA7774P/PG/F/ (mA 100 400 100 400 c d 2007-6-4 ...

Page 8

... Test Circuit SAT 2H1 Note: Adjust R to correspond Item SAT 2H1 ― ― SAT 2H2 ― ― SAT L1 ― ― SAT 2H2 SAT ― ― ― ― ― ― TA7774P/PG/F/ (mA 100 2007-6-4 ...

Page 9

... Test Circuit Timing Chart (two-phase excitation) TA7774P/PG/F/FG Measuring Method ITEM 2007-6-4 ...

Page 10

... No heatsink Ambient Temperature TA7774FAG Thermal resistance R =160°C/W th(j-a) Mounting on a PCB 1.6 mm, 40% or more of which is occupied by copper Ambient Temperature Ta (°C) TA7774P/PG/F/FG TA7774F/FG Mounting on a PCB 0.8 mm, 50% or more of which is occupied by copper No heatsink Ambient Temperature 10 2007-6-4 ...

Page 11

... V). S2A Note 2: Utmost care is necessary in the design of the output, V destroyed by short-circuiting between outputs, air contamination faults, or faults due to improper grounding short-circuiting between contiguous pins. TA7774P/PG/F/FG/FAG TA7774P/PG/F/FG/FAG , TA7774P/PG/F/FG , and GND lines since the IC may be M 2007-6-4 ...

Page 12

... Package Dimensions DIP16−P−300−2.54A Weight: 1.11 g (typ.) TA7774P/PG/F/FG 12 Unit: mm 2007-6-4 ...

Page 13

... Package Dimensions HSOP16−P−300−1.00 Weight: 0.50 g (typ.) TA7774P/PG/F/FG 13 Unit: mm 2007-6-4 ...

Page 14

... SSOP16−P−225−1.00A Weight: 0.14 g (typ.) TA7774P/PG/F/FG Unit 2007-6-4 ...

Page 15

... Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result injury by explosion or combustion. In addition, do not use any device that is applied the current with inserting in the wrong orientation or incorrectly even just one time. TA7774P/PG/F/FG 15 2007-6-4 ...

Page 16

... If the current sink capability of the power supply is small, the device’s motor power supply and output pins might be exposed to conditions beyond maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in system design. TA7774P/PG/F/ ...

Page 17

... Please use this product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations. 060819_AF • The products described in this document are subject to foreign exchange and foreign trade control laws. TA7774P/PG/F/FG 021023_D 021023_B 060106_Q 17 070122EBA_R6 ...

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