AN7170

AN7170 PANASONIC | Alldatasheet

Document overview

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Technical content

The AN7170 is an integrated circuit manufactured by high voltage process designed for power amplifier of bus, track amplifier. Wide operating supply voltage range with output of 18W at 26.4V. It can be widely used for bus, truck amp., car stereo, home entertainment stereo set and TV sound multiplex output. n Features

• High output power : PO =18W
• High surge voltage : VCC (surge) = 60V(max.)
• Wide supply voltage range : VCC (opr) = 8 ~ 35V
• Incorporating protection circuits (overvoltage, overcur- rent, temperature, load short)
• Incorporating automatic operating point stabilizer circuit
• Low distortion, low 1/f noise AN7170 18W Audio Power Amplifier Circuit Unit : mm 3.6–0.2 2.7–0.41.0–0.2 30.0–0.3 24.0–0.3 1.26–0.25 1.8R 5.5–0.3 7.5 –0.3 2.54 0.7–0.1 3.5–0.25 0.35–0.25 0.35+ 0.1 – 0.05 0.95–0.25 11-Lead SIP Package (HSIP011-P-0000) 9 11 6 35 GND (Output) GND (Input) V CC Input Circuit Driver Circuit Output Circuit Ripple Filter Temperature Compensation Surge Over Current Protection n Block Diagram

AN7170 ICs for Audio Common Use V C C V C C V C C (surge) IC C PD Topr Tstg Supply V oltage (at no signal) Supply V oltage (at operation) Peak Supply V oltage N ote 1) Supply C urrent Pow er D issipation N ote 2) O perating A m bient Tem perature Storage Tem perature V V V A W Param eter Sym bol R ating U nit 31.25 – 30 ~ + 75 – 55 ~ + 150 N ote 1) Pulse V oltage application t = 0.2s N ote 2) Ta = 25˚C ( θj – c = 4˚C /W ) n Absolute M axim um R atings (Ta= 25˚C ) n Electrical C haracteristics (V C C = 26.4V , f = 1kH z, Ta= 25˚C ) V i= 0m V V i= 3m V TH D = 1% TH D = 10% V i= 3m V Param eter Sym bol C ondition m in. typ. m ax. U nit Q uiescent C ircuit C urrent V oltage G ain IC Q G V 10.5 9.5 0.1 0.7 160 0.7 1.5 m A dB W W m V Total H arm onic D istortion N o D istortion M axim um O utput O utput N oise V oltage TH D V no PO PO R R Zi dB kΩ W W R g= 10kΩ , D IN A Filter V i= 0m V , R g= 0Ω TH D = 1% TH D = 10% R ipple R ejection R atio Input Im pedance N o D istortion M axim um O utput (R L= 8Ω ) (R L= 4Ω ) n Pin D escriptions Pin N o. Pin N am e O utput N C G N D (O utput) B ootstrap Phase C om pensation N egative Feedback Pin N o. Pin N am e Input G N D (Input) R ipple Filter N C V C C

ICs for Audio Common Use AN7170 V C C = 24V , R L = 4Ω f = 1kH z, G V = 53dB PO , PD , TH D – Vi G V, TH D – fG V, TH D – f 100 0.3 0.1 0.03 0.01 O utput Pow er PO (W ), Pow er D issipation PD (W ), Total H arm onic D istortion TH D (% ) Input V oltage V i (m V ) 0.1 0.3 1 3 10 30 100 V C C = 24V , R L = 8Ω f = 1kH z PO , PD , TH D – Vi 100 0.3 0.1 0.03 0.01 100 0.3 0.1 0.03 0.01 O utput Pow er PO (W ), Pow er D issipation PD (W ) Input V oltage V i (m V ) 0.1 0.3 1 3 10 30 100 V C C = 24V R L = 8Ω PO = 2W4 – 4 1.5 1.0 0.5 Total H arm onic D istortion TH D (% ), V oltage G ain G V (dB ) Total H arm onic D istortion TH D (% ) 10 100 1k 10k 100k V C C = 24V R L = 4Ω PO = 4W G V = 53dB – 4 – 6 V oltage G ain G V (dB ) Frequency f (H z)Frequency f (H z) 10 100 1k 10k 100k PD – Ta Pow er D issipation PD (W ) A m bient Tem perature Ta (˚C ) 0 40 80 120 160 200 PO – VC C O utput Pow er PO (W ) Supply V oltage V C C (V ) 0 12 16 20 24 28 32 R L = 4Ω R L = 8Ω PD – PO Pow er D issipation PD (W ) O utput V oltage PO (W ) 0 4 20 24 288 12 16 32 (1) (2) (3) (1) Tc = Ta (θj – c = 4˚C /W ) (2) W ith a 100cm 2 × 3m m A l heat sink (black color coated) or a 200cm 2 × 2m m A l heat sink (not lacquered) (3) W ith a 100cm 2 × 2m m A l heat sink (not lacquered) 2.0 1.5 1.0 0.5 Total H arm onic D istortion TH D (% ) G V = 53dB G V = 46dB G V = 53dB G V = 46dB R L = 4Ω R L = 8Ω 28V 16V 22V 24V 10% G V G V TH DTH D PO PO PD TH D TH D = 10% PD PO TH D V C C = 30V 30V 28V 16V 22V 24V TH D f = 1kH z

AN7170 ICs for Audio Common Use 9 11 6 35 8 1 7 4 1500pF Input 100µF 100µF 1000µF V C C = 26.4V 0.033µF 1000µF 4Ω or 8Ω 47µF 2.2Ω 0.1µF 150Ω 150Ω A N 7170 *1. 82Ω at G V = 46dB , R = 0 at G V = 53dB *2. 12pF at G V = 46dB , 8pF at G V = 53dB (C = 0 is allow able for frequency characteristics adjustm ent in high band) V C C 1000µF + 0.1µF 2.2Ω 1000µF O U T 0.033µF + 47µF 150Ω 82Ω IN 100µF 100µF 150Ω 1500pF 12pF 111 Scale : 1/1 A N 7170 n Application Circuit n Printed Circuit Board Layout