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TA7774PG Dataheets PDF



Part Number TA7774PG
Manufacturers Toshiba Semiconductor
Logo Toshiba Semiconductor
Description Stepping Motor Driver
Datasheet TA7774PG DatasheetTA7774PG Datasheet (PDF)

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.

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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 Block Diagram TA7774P/PG/F/FG TA7774P/PG/F/FG/FAG Note: Pins 2, 7, 12, and 13 of the TA7774F/FG are all NC; the heat fin is connected to GND. Pin Description Pin No. Symbol 1 / (1) 2 / (3) 3 / (4) 4 / (F) 5 / (F) 6 / (5) 7 / (6) 8 / (8) 9 / (9) 10 / (10) 11 / (11) 12 / (F) 13 / (F) 14 / (14) 15 / (15) 16 / (16) VS2 A VCC IN A GND GND IN B PS VS2 B VS1 B φB φB GND GND φΑ φA VS1 A ( ): TA7774F/FG Functional Description Low-voltage power supply terminal Power voltage supply terminal for control A-ch forward rotation / reverse rotation signal input terminal, Truth Table 1 GND terminal GND terminal B-ch forward rotation / reverse rotation signal input terminal, Truth Table 1 Power saving signal input terminal Standby signal input terminal, Truth Table 2 High-voltage power supply terminal Output B Output B GND terminal GND terminal Output Α Output A High-voltage power supply terminal. 2 2007-6-4 Truth Table 1 Input Output PS IN φ φ L L L H Enable VS1 L H H L Enable VS1 H L L H Enable VS2 (power saving) H H H L Enable VS2 (power saving) Truth Table 2 VS2 B L Power off (standby) H Operation Note: Apply 5 V to VS2A as a supply terminal. TA7774P/PG/F/FG 3 2007-6-4 Output Circuit TA7774P/PG/F/FG Input Circuit IN A, IN B Input Circuit VS2 A or VS2 B TA7774P/PG/F/FG/FAG Absolute Maximum Ratings (Ta = 25°C) Characteristic Supply voltage Output current TA7774P/PG TA7774F/FG TA7774FAG Input voltage TA7774P/PG Power dissipation TA7774F/FG TA7774FAG Operating temperature Storage temperature Symbol VCC VS1 VS2 IO (PEAK) IO (START) IO (HOLD) IO (PEAK) IO (START) IO (HOLD) VIN PD Topr Tstg Rating Unit 7.0 Note 1: IC only 17.0 V ≤VCC Note 2: This value is obtained if mounting is on a 50 × 50 ±400 × 0.8 mm PCB, 60% or ±350 ±100 ±200 more of which is occupied by copper. mA Note 3: This value is obtained if mounting is on a 60 × 30 ±100 × 1.6 mm PCB, 50% or ±50 more of which is occupied by copper. ≤VCC V 1.4 (Note 1) Note 4: This value is obtained if mounting is on a 50 × 50 2.7 (Note 2) 1.4 (Note 3) 0.78 (Note 4) W × 1.6 mm PCB, 40% or more of which is occupied by copper. −30 to 75 °C −55 to 150 °C 4 2007-6-4 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.


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