HA13408 9-Channel Power Driver ADE-207-206 (Z) 1st Edition July 1996 Description The HA13408 9-channel power driver IC is designed to drive dot matrix printer head. This IC can drive 9 pins without using any external components. HA13408 can be used for 2 system four-phase step drive, as every channel is used independently. Features • • • • • • • • High output current: 1.5 A/channel Max High sustaining voltage: 50 V Min Low saturation voltage Low supply current Low input current Compatible with TTL, LSTTL & 5 V CMOS Low thermal resistance package Zener diodes Truth Table Input Output Low On High Off Open Off HA13408 Block Diagram VCC2 24 V ± 10% VCC1 4 to 6 V 2 Out 1 IN 1 1 4 Out 2 IN 2 3 6 Out 3 IN 3 7 8 5 GND 9 IN 4 10 Out 4 Out 5 11 IN 5 12 Out 6 15 IN 6 14 13 17 IN 7 16 GND Out 7 Out 8 21 IN 8 18 Out 9 23 IN 9 20 19 22 TAB GND 2 GND HA13408 Peak Current and Turn-Off Time Figure 1 shows load current (Iout) and output terminal voltage (Vout) waveforms for the HA13408 driving an inductive load. Hi Low Vin ton T IP 0 Iout tsus VCE(sus) Vout VCC2 VCE(sat) Figure 1 Output Waveforms The peak output current (Ip) and sustain time (tsus) are obtained as follows; IP = VCC2 – VCE(sat) R tsus = 1 – exp – R ton L . V =. CC2 R 1 – exp – L IP • R ln 1 + R VCE(sus) – VCC2 R ton L (1) (2) Where L is load self-inductance and R is load direct current resistance. For example, under the following conditions: L = 5 mH, R = 22 Ω Supply voltage VCC2 = 24 V, Time to drive load ton = 0.42 ms. Peak current (Ip) and sustain time (tsus) are then: IP = 0.87 A 3 HA13408 tsus = 0.118 ms Where VCE(sat) = 1.3 V typ and VCE(sus) = 52 V typ. Power Dissipation Power dissipation driving an inductive load for an HA13408 is determined as follows: First, average power dissipation (Pon) per channel at ton is obtained as follows: . Pon =. VCE(sat) IP VCC2 1 – R • IP ton L R (3) Average power dissipation (Psus) at t sus : . Psus =. VCE(sus) IP L VCE(sus) – VCC2 1 – R • IP tsus R (4) Where IP and tsus are obtained in equations (1) and (2). Average power dissipation (P T ) per channel for a period is obtained as follows: . 1 PT =. T (Pon • ton + Psus • tsus) (5) Where drive period is defined as T. Power dissipation (PT ) for 9 channels driven at the same time: . 9 PT =. T (Pon • ton + Psus • tsus) (6) 4 HA13408 Application +5 V +24 V 2 MPU 4 1 6 3 8 10 12 7 9 11 14 16 15 17 18 21 20 23 22 19 13 5 Printer Head Tab 5V 2 MPU 4 1 6 3 8 10 12 7 9 11 14 16 15 17 18 21 20 23 22 19 13 5 Tab Figure 2 Dot Matrix Printer 5 Stepper for Head Feeder Stepper for Paper Feeder HA13408 Absolute Maximum Ratings (Ta = 25°C) Item Symbol Rating Unit Supply voltage VCC1 7.0 V Input voltage VI VCC1 V Output voltage VCE(sus) 50 V Output current IO 1.5 A Power dissipation PT 20 W Junction temperature Tj 150 °C Operating junction temperature range Tjop –20 to +125 °C Storage temperature range –55 to +125 °C Tstg Notes: 1. Thermal resistance Notes 1 θ j – a ≤ 40°C/W θ j – c ≤ 3°C/W Electrical Characteristics (Ta = 25°C, VCC1 = 5 V) Item Symbol Min Typ Max Unit Test Conditions Input Low voltage VIL — — 0.8 V VCC1 = 4.0 V Input High voltage VIH 2.0 — — V VCC1 = 6.0 V Input Low current I IL –100 –15 +10 µA VI = 0 V Input HIgh current I IH –10 0 +10 µA VI = 2.4 V Supply current I CCO — 30 45 mA All V I = 2.4 V I CC — 33 50 mA All V I = 0 V Output cut off current I CEO — — 1.0 mA VCC1 = 6 V, VCC2 = 40 V, VI =2 .0 V Output saturation voltage VCE(sat) — 1.6 2.2 V VCC1 = 4 V, IO = 1.0 A, VI = 0.8 V Output sustaining voltage VCE(sus) 50 — — V I O = 1.0 A Delay time t PLH — 1.5 5 µs Turn OFF t PHL — 0.3 5 µs Turn ON Note: 1. The conditions of loading; Measure at Ls = 5 mH, Rs = 22 Ω. 6 Note 1 HA13408 Package Dimensions Unit: mm 31.0 Max 28.0 ± 0.3 3.8 Max 9.0 11.2 ± 0.3 7.7 3.6 ± 0.2 23 1.27 0.6 ± 0.1 1.80 ± 0.25 2.54 5.0 Min 6.2 Min 23.97 ± 0.30 Hitachi Code JEDEC EIAJ Weight (reference value) 7 2.2 ± 0.5 14.7 Max 1 1.23 ± 0.25 1.5 Max 12.33 ± 0.45 20.0 ± 0.2 4.1 ± 0.3 + 0.10 – 0.05 φ 3.6 ± 0.2 0.25 30.0 SP-23TA — — 4.61 g Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. 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Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products. Hitachi, Ltd. Semiconductor & Integrated Circuits. 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