AN8814

AN8814SB PANASONIC

Document overview

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

Technical content

ICs for Compact Disc/CD-ROM Player AN8814SB 4-channel driver IC for optical disk drive n Overview The AN8814SB is a BTL system 4-channel driver and is encapsulated in the SMD package which excels in heat radiation characteristic. n Features

• Wide output dynamic range regardless of refer- ence voltage of the system
• Driver I/O gain setting is possible with an addi- tional external resistor
• 3.3 V supply voltage is available due to an exter- nal PNP-tr.
• Additional OP-amp. built-in n Applications
• MD, 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 19PGND1 20 PV CC1 23IN1 18 VO1 + 24PC1 17 VO1 - 25IN2 16 VO2 + 26PC2 15 VO2 - 27IN3 14 VO3 +

13 VO3 -

9 PV CC2

7 V CC4

22 V REF

3.3 V reg. Direction detector Direction detector Direction detector Direction detector V CC detector Thermal protection circuit

AN8814SB 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

20 Driver power supply pin 1

22 V REF input pin

23 Motor driver-1 input pin

24 PC (power cut) input pin 1

25 Motor driver-2 input pin

26 PC (power cut) input pin 2

27 Motor driver-3 input pin

28 Motor driver-4 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 Op-amp. output pin 5 Op-amp. inverted input pin 6 Op-amp. non-inverted input pin

7 Power supply pin

9 Driver power supply pin 2

10 Driver GND pin 2

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 4.0 to 14 V n Recommended Operating Range Parameter Symbol Rating Unit Supply voltage SV CC 17 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 operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: Ta = 85°C. Referring to "n Application Circuit Example", following the allowable power dissipation characteristic curve of "n Application Notes".

ICs for Compact Disc/CD-ROM Player AN8814SB n Electrical Characteristics at Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit Current consumption with no loadITOT V CC = 5 V 5 10 15 mA Motor driver 1 to motor driver 4 Input offset voltage V IOF V CC = 5 V, VPC1 = VPC2 = 0 V, -10 0 10 mV R L1 to RL4 = 8 kW , R1 to R4 = 10 kW Output offset voltage V OOF V CC = 5 V, VPC1 = VPC2 = 0 V, -50 0 50 mV R L1 to RL4 = 8 kW , R1 to R4 = 10 kW Gain G V CC = 5 V, VPC1 = VPC2 = 0 V, 18.0 20.0 22.0 dB R L1 to RL4 = 8 kW , R1 to R4 = 10 kW Maximum output amplitude (+)V L+ V CC = 5 V, VPC1 = VPC2 = 0 V, 2.4 2.7 ¾ V R L1 to RL4 = 8 kW , R1 to R4 = 10 kW Maximum output amplitude (-)V L- V CC = 5 V, VPC1 = VPC2 = 0 V, ¾- 2.7 -2.4 V R L1 to RL4 = 8 kW , R1 to R4 = 10 kW Motor driver 1 High-level threshold voltage VPCH1 V CC = 5 V, RL1 = 8 W , R1 = 10 kW 2.0 ¾¾ V Low-level threshold voltage V PCL1 V CC = 5 V, RL1 = 8 W , R1 = 10 kW¾ ¾ 0.5 V Motor driver 2 High-level threshold voltage VPCH2 V CC = 5 V, RL2 = 8 W , R2 = 10 kW 2.0 ¾¾ V Low-level threshold voltage V PCL2 V CC = 5 V, RL2 = 8 W , R2 = 10 kW¾ ¾ 0.5 V Reset circuit Reset operation release supply VRST IIN = 10 mA, R1 to R 4 = 10 kW 2.1 2.3 2.5 V voltage

3.3 V regulator

Output voltage V REG V CC = 5 V 3.1 3.3 3.5 V Output load fluctuation DV R V CC = 5 V -50 0 50 mV Supply voltage fluctuation DV V V CC = 5 V/12 V -50 5m V Op-amp. Input offset voltage V OF V CC = 5 V -10 0 10 mV Input bias current I BOP V CC = 5 V ¾ 150 500 nA High-level output voltage V OH V CC = 5 V 4.0 ¾¾ V Low-level output voltage V OL V CC = 5 V ¾¾ 1.5 V Output driving current sink I SIN V CC = 5 V 2.0 ¾¾ mA Output driving current source ISOU V CC = 5 V 2.0 ¾¾ mA

AN8814SB ICs for Compact Disc/CD-ROM Player n Electrical Characteristics at Ta = 25°C (continued) 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

• Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. n Usage Notes 1. Avoid the short-circuits between output and VCC , and between output pin and GND. Otherwise, the IC is likely to break down or emit smoke. 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 AN8814SB n Application Circuit Example 1 28 R4 V REF RL1 2 27 3 26 4 25 5 24 6 23 SV CC Fin Fin 8 21 9 20 10 19 11 18 12 17 13 16 14 15 V 4 V 3 V 2 V 1 RL2 RL4 RL3 PV CC1 PV CC2 When the AN8814SB 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 · (2 · SV CC + | V12 -V 11 |)}R 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 · ISVCC + PVCC1 · IPVCC1 + PVCC2 · IPVCC2 7. Allowable power dissipation in a load operating mode (PD ) comes roughly as follows: PD = PD1 + DPD + DPS