AN8813

AN8813NSB PANASONIC

Document overview

• Manufacturer or author: Provided By digicamel.com
• PDF pages: 5

Technical content

ICs for Compact Disc/CD-ROM Player AN8813NSB 4-channel driver IC for optical disk drive n Overview The AN8813NSB is a 4-channel driver IC of the BTL method. Ch.1 is used only for the loading motor with little gain dispersion. n Features

• For the loading motor channel, there are 4 modes, that is, forward rotation, reverse rotation, brake and standby modes, and you can select a mode among them. The gain of it is fixed to 6 dB (–0.5 dB) with a small dispersion among the products.
• 3.3 V supply voltage is available due to an exter- nal PNP-tr.
• Driver I/O gain setting is possible with an addi- tional external resistor
• Since the output and input lines are separated and respectively collected together, pattern designing is relatively easy. n Applications
• CD/CD-ROM drive
• DVD/DVD-ROM drive HSOP042-P-0400 Unit: mm 17 8 1 4 (1.315) 0.65±0.20 28 22 21 (4.8) (6.4)(1.2) (5.15) 18.4±0.2 10.93±0.30 0.35+0.10 –0.05 0.30 +0.10 –0.05

0.8 Seating plane

0° to 10° n Block Diagram VO1 + PV CC1PGND1 IN1 IN2 IN3 IN4 PGND2 MC1 MC2 V REF GND SV CC VO1 - VO2 + VO2 - VO3 + VO3 - VO4 + VO4 - PV CC2 Fin Direction detector PVCC 3.3 V reg. Direction detector Direction changeover SV CC detector Thermal protection circuit Decoder Direction detector

1 PVCC2

AN8813NSB ICs for Compact Disc/CD-ROM Player Pin No. Description

15 Motor driver-2 reverse rotation output pin

16 Motor driver-2 forward rotation output pin

17 Motor driver-1 reverse rotation output pin

18 Motor driver-1 forward rotation output pin

19 Driver GND pin 1 (PGND1)

20 Driver power supply pin 1 (PVCC1 )

22 Op-amp. non-inverted input pin 23 Op-amp. inverted input pin 24 Op-amp. output pin

25 Motor driver-1 input pin

26 Motor driver-2 input pin

27 Motor driver-3 input pin

28 V REF input pin

Pin No. Description

1 Base control pin for an external transistor

of 3.3 V regulator 2 3.3 V regulator output monitor pin 3 N.C. pin

4 Motor driver-4 input pin

5 Motor driver-4 control pin 1

6 Motor driver-4 control pin 2

7 Power supply pin (SV CC )

9 Driver power supply pin 2 (PV CC2 )

10 Driver GND pin 2 (PGND2)

11 Motor driver-4 reverse rotation output pin

12 Motor driver-4 forward rotation output pin

13 Motor driver-3 reverse rotation output pin

14 Motor driver-3 forward rotation output pin

Parameter Symbol Range Unit Supply voltage SV CC , PVCC1 , PVCC2 4.5 to 14 V n Recommended Operating Range Parameter Symbol Rating Unit Supply voltage SV CC 18 V Supply current I CC ¾ mA Power dissipation *2 PD 542 mW Operating ambient temperature *1 Topr -30 to +85 °C Storage temperature *1 T stg -55 to +150 °C n Absolute Maximum Ratings Note) *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: Ta = 85°C. For the independent IC without a heat sink. Referring to "n Application Circuit Example", following the allowable power dissipation characteristic curve of "n Application Notes".

ICs for Compact Disc/CD-ROM Player AN8813NSB n Electrical Characteristics at Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit Current consumption with no loadITOT V CC = 8 V, VIN4 = 1 V 5 10 15 mA Motor driver 1 to motor driver 3 Input offset voltage V IOF V CC = 8 V, RL1 to RL3 = 8 W, -10 0 10 mV R 1 to R3 = 10 kW Output offset voltage V OOF V CC = 8 V, RL1 to RL3 = 8 W, -50 0 50 mV R 1 to R3 = 10 kW Gain G V CC = 8 V, RL1 to RL3 = 8 W, 18.0 20.0 22.0 dB R 1 to R3 = 10 kW Maximum output amplitude (+)V L+ V CC = 8 V, RL1 to RL3 = 8 W, 4.4 5.0 ¾ V R 1 to R3 = 10 kW Maximum output amplitude (-)V L- V CC = 8 V, RL1 to RL3 = 8 W, ¾- 5.0 -4.4 V R 1 to R3 = 10 kW Motor driver 4 For loading motor Input bias current I IN4 V CC = 8 V, VIN4 = 1 V ¾ 150 500 nA Forward rotation gain G 4+ V IN4 = 1 V, VCC = 8 V 5.0 5.5 6.0 dB R L4 = 8 W , VMC = 5 V Reverse rotation gain G 4- V IN4 = 1 V, VCC = 8 V 5.0 5.5 6.0 dB R L4 = 8 W , VMC = 5 V Maximum output amplitude (+)V 4L+ V IN4 = 4 V, VCC = 8 V 4.4 5.0 ¾ V R L4 = 8 W , VMC = 5 V Maximum output amplitude (-)V 4L- V IN4 = 4 V, VCC = 8 V ¾- 5.0 -4.4 V R L4 = 8 W , VMC = 5 V Output leak current at standby IOL(STB) V IN4 = 1 V, VCC = 8 V ¾¾ 10 mA R L4 = 8 W , VMC = 5 V Output offset voltage at braking VOF(BRK) V IN4 = 1 V, VCC = 8 V -80 0 80 mV R L4 = 8 W , VMC = 5 V MC1 pin, MC2 pin V MCH V IN4 = 1 V, VCC = 8 V 2.0 ¾¾ V high-level threshold voltage R L4 = 8 W MC1 pin, MC2 pin V MCL V IN4 = 1 V, VCC = 8 V ¾¾ 0.3 V low-level threshold voltage R L4 = 8 W Reset circuit Reset operation release supply VRST IIN = 10 mA, R1 to R3 = 10 kW 3.0 3.2 3.3 V voltage

3.3 V regulator

Output voltage V REG V CC = 8 V 3.1 3.3 3.5 V Output load fluctuation DV R V CC = 8 V -50 0 50 mV Supply voltage fluctuation DV V V CC = 8 V to 12 V -50 5m A Op-amp. Input offset voltage V OF V CC = 8 V -50 5m V Input bias current I BOP V CC = 8 V ¾ 150 500 nA

AN8813NSB ICs for Compact Disc/CD-ROM Player n Electrical Characteristics at Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit OP-amp. (continued) High-level output voltage V OH V CC = 8 V 6.0 ¾¾ V Low-level output voltage V OL V CC = 8 V ¾¾ 1.7 V Output driving current sink I SIN V CC = 8 V 2.0 ¾¾ mA Output driving current source ISOU V CC = 8 V 2.0 ¾¾ mA Parameter Symbol Conditions Min Typ Max Unit Thermal protection circuit Operating temperature T THD ¾ 180 ¾° C equilibrium value Operating temperature DTTHD ¾ 45 ¾° C hysteresis width Motor driver 4 IN4 pin input setting range V IN4 0.5 ¾ 2.5 V

• Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. n Usage Notes 1. This IC has no output short-circuit protection circuit and is likely to emit smoke and break down when there is a short-circuit between output and VCC or output and GND. 2. An appropriate prior study should be done for use of dip soldering. n Application Notes
• PD ¾ Ta curves of HSOP042-P-0400 PD ¾ Ta 0.000 0 25 50 75 100 125 150 2.500 1.500 1.000 2.240 2.000 1.042 0.500 Ambient temperature Ta (°C) Power dissipation PD (W) Mounted on standard board (glass epoxy: 75 mm · 75 mm · t1.6 mm) R th(j-a) = 55.8°C/W Independent IC without a heat sink R th(j-a) = 119.9°C/W

ICs for Compact Disc/CD-ROM Player AN8813NSB n Application Circuit Example Fin Fin V 2 V 4 V 3 V 1 R3 R2 R1 RL1 RL2 RL4 RL3 PV CC1 PV CC2 V REF SV CC 5 V When the AN8813NSB is use, take into account the following cautions and follow the power dissipation characteristic curve. 1. Load current IP1 flowing into load RL1, RL2 is supplied through pin 20. IP1 = | V18 -V 17 | + | V16 -V 15 | R L1 R L2 2. Load current IP2 flowing into load RL3, RL4 is supplied through pin 9. IP2 = | V14 -V 13 | + | V12 -V 11 | R L3 R L4 3. Dissipation increase (DPD ) inside the IC (power output stage) caused by loads RL1, RL2, RL3 and RL4 is as follows: DPD = (PV CC1 - | V18 -V 17 |) · | V18 -V 17 | + (PV CC1 - | V16 - V15 |) + | V16 -V 15 | R L1 R L2 RL3 R L4 4. Dissipation increase (DPS) inside the IC (signal block supplied from pin 7) caused by loads RL1, RL2, RL3 and RL4 comes roughly as follows: DPS = 3 · {V 1 · (2 · SV CC + | V18 -V 17 |) +V 2 · (2 · SV CC + | V16 -V 15 |) R1 R 2 + V 3 · (2 · SV CC + | V14 -V 13 |)} +V 4 · (3 · SV CC + | V12 -V 11 |), where R4: Internal resistor 12.3 kWR 3 R 4 5. Dissipation increase in a driver operating mode is DPD + DPS . 6. Allowable power dissipation without load (PD1 ) can be found as follows: PD1 = SV CC · I(SVCC) +PV CC1 · I(PVCC1) + PVCC2 · I(PVCC2) 7. Allowable power dissipation in a load operating mode (PD ) comes roughly as follows: PD = PD1 + DPD + DPS