Panasonic AN8497SA Manual
Contents
1. Low level input voltage VsBL 0 8 V Panasonic 3 AN8497SA ICs for Compact Disc CD ROM Player E Electrical Characteristics at SVpp Vmi2 Vm 5 V Vrer 1 65 V SB 3 3 V RL 8 Q Ta 25 C continued e Design reference data Note The characteristics listed below are theoretical values based on the IC design and are not guaranteed Parameter Symbol Conditions Min Typ Max Unit Thermal protection Thermal protection operating Trsp 160 C temperature Thermal protection hysteresis width AT rsp 40 C SVpp reset Hysteresis width AV res 0 2 V E Usage Notes 1 2 Pin 28 is a standby switch input pin Standby operation reset operation Be sure to use SVpp in the highest potential within the IC You can get an active mode with high level and standby mode with low level In a reset operation all the functions of the IC stop In a reset mode SV pp reset VRer reset and thermal protection on only a charge pump operates Do not use pin 13 Vggp in an open state Take time to check the characteristics on use Power on and off be done in a standby mode Vsp Low When changing an external circuit constant for use consider not only static characteristics but also transient charac teristics and external parts with respect to the characteristics difference among ICs so that you can get enough margin Keep each ou2. 10 11 12 13 15 17 18 19 22 28 E Recommended Operating Range Parameter Supply voltage SVpp 4 5 to 5 0 to 5 5 Vui2 gt Vea 3 5 to 5 0 to 5 5 E Electrical Characteristics at SVpp Vm12 Vms 5 V Vper 1 65 V SB 3 3 V R 80 T 25 C Parameter Symbol Conditions Min Typ Max Unit Power supply current at standby Ivms SB L 10 uA Control supply current at standby Isvs SB L Vrer 0 V a 10 uA Control supply current at no input Isva SB H 5 10 mA Charge pump Output voltage V PMP Ipmp 0 mA 7 0 8 4 9 8 V Current output capability Vpmec Ipup 1 mA 5 9 7 3 8 7 V Triangular wave generation circuit Sink current Ictsn Ver 1 6V 133 153 173 uA Source current Icrsr Ver 0 1 V 37 44 51 uA Self running oscillation frequency frp Cer 100 pF 175 200 225 kHz Driver block Channel 1 2 output on resistance Roni Ron Rp 8 Q 1 4 2 3 Q upper lower Channel 3 output on resistance Ron3 Rp 8 Q 0 8 1 6 Q upper lower Output offset voltage Vos 50 50 mV Voltage gain G 12 0 14 0 16 0 dB relative gain Gp E 1 5 dB Dead zone converted to input Vpz 0 10 30 mV SVpp reset Reset supply voltage VRESH 4 5 V Vrer reset High level input voltage VRRH 1 35 V Low level input voltage V RRL E 0 7 V Standby operation High level input voltage VsBH 2 7 V
3. Uren D ROM Player AN8497SA 3 channel linear input PWM driver IC E Overview The AN8497SA is a PWM output 3 channel driver IC supporting linear inputs and best suited for an actuator and a motor drive for CD ROM and DVD ROM Due to its linear input a conventional system can be used only by replacing a driver And due to an adoption of PWM output you can reduce considerably power consumption compared with a conventional driver Further a space saving surface mount package is adopted thanks to its low thermal generation E Features e Maximum 64 reduction of power consumption compared with a conventional linear 3 channel driver IC e Free gain setting by an external resistor due to voltage feedback Panasonic 11 0 0 3 AA AABBRARAAR ARH j 0 65 0 10 0 10 0 3 50 05 ja Seating plane 0 65 0 10 SSOP032 P 0300 Unit mm e Standby function available standby current lt 20 uA e Only for supply voltage 5 V Phase compensation function E Applications e Optical disk drive E Block Diagram BC2 VPUMP CLK Triangular wave oscillator CT FB3 VREF detection VM12 YCIA YCIB YC2A Panasonic Inl SGND SVpp detection Q A gt n In3 AN8497SA E Pin Descri
4. mum Ratings Parameter Symbol Rating Unit Supply voltage SVpp 6 0 V Vu Vm3 Supply voltage application range SVpp 0 3 to 6 0 V Vu Vs Drive output voltage 7 Vim 7 0 V Control signal input voltage Vin SGND to SVpp V Supply current Isypp 200 mA Ivm 2 2 000 Ivm3 1 200 Drive output current channel 1 2 Lo 1 000 mA Drive output current channel 3 6 Lo 1 200 mA Power dissipation Pp 400 mW Operating ambient temperature Topr 30 to 75 C Storage temperature Tote 55 to 150 C Note Do not apply external currents or voltages to any pins not specifically mentioned expect for the power supply and GND pins For circuit currents denotes current flowing into the IC and denotes current flowing out of the IC 1 Except for the operating ambient temperature and storage temperature all ratings are for T 25 C 2 The voltage in a step up voltage circuit exceeds a supply voltage Refer to Il Electrical Characteristics for an allowable value of a step up voltage 3 Use within I 000 mA in each channel I and channel 2 2 Panasonic ICs for Compact Disc CD ROM Player AN8497SA E Absolute Maximum Ratings continued Note 4 Use within the range of not exceeding Pp 400 mW without heat sink and at T 75 C in accordance with an allowable power dissipation characteristic curve of I Application Note 5 0 2 3 30 31 6 p 24 27 7 m 2 3 4 24 27 29 30 31 8 n 4 5 6 7 8 9
5. ptions ICs for Compact Disc CD ROM Player Pin No Symbol Description Pin No Symbol Description 1 VM12 Channel 1 2 power supply 17 FB3 Channel 3 feedback signal output pin 2 FO1 Channel 1 forward output pin 18 CT Triangular wave output pin 3 RO1 Channel 1 reverse output pin 19 CLK CLK synchronous pulse input pin 4 SO1 Channel 1 feedback signal input pin 20 VPUMP Charge pump step up voltage output 5 YC1A Channel 1 feedback gain adjustment pin A 21 BC2 Charge pump capacitor connection pin 2 6 YC1B Channel I feedback gain adjustment pin B 22 BC1 Charge pump capacitor connection pin I ih YC2A Channel 2 feedback gain adjustment pin A 23 N C NC 8 YC2B Channel 2 feedback gain adjustment pin B 24 RO3 Channel 3 reverse output pin 9 FB1 Channel 1 feedback signal output pin 25 VM3 Channel 3 power supply 10 In1 Channel 1 driver input pin 26 PG3 Channel 3 power ground 11 FB2 Channel 2 feedback signal output pin 27 FO3 Channel 3 forward output pin 12 In2 Channel 2 driver input pin 28 SB All shut off input pin 13 Veer Reference voltage input pin 29 SO2 Channel 2 feedback signal input pin 14 SGND Control circuit ground 30 RO2 Channel 2 reverse output pin 15 In3 Channel 3 driver input pin 31 FO2 Channel 2 forward output pin 16 SVpp Control circuit power supply 32 PG12 Channel 1 2 power supply E Absolute Maxi
6. tput pin from being short circuited to SVpp or VM or GND line to supply and line to ground fault and also between themselves load short circuit Otherwise the IC will be damaged and is likely to get fired E Application Note e Po T curves of SSOP032 P 0300 Power dissipation Pp W 1 400 1 288 1 200 1 000 0 800 0 667 0 600 0 400 0 200 Be cautious on a dip soldering Prior study is required Pop T Mounted on standard board glass epoxy 50 x 50 x t0 8 mm Ring a 97 0 C W ndependent IC without a heat sink Rinq a 187 2 C W 50 75 100 125 150 Ambient temperature T C Panasonic ICs for Compact Disc CD ROM Player AN8497SA Application Circuit Example High Active a Low Standby S CLK synchronous Standby sgnal input 5 signalinput a A 9 pA if gt 5 T LLL LZ EEE fall rect Charge pump Triangular wave oscillator 15kQ Verre 13 t ch 1 input ch 2 input M 8 200 pF 8 200 pF 777 777 777 777 Vref 1 65 V SVpp 5 V Panasonic 5
Download Pdf Manuals
Related Search
Panasonic AN8497SA Manual