AN6608

AN6608 PANASONIC

Document overview

• Manufacturer or author: Provided By digicamel.com
• PDF pages: 6

Technical content

The AN6608, the AN6609N and the AN6609NS are the electronic governors which incorporate the forward /reverse rotation and double speed controls of the DC motors used for radio/cassette tape recorder, and the functions such as fast forward, rewind, brake, and pause. They are also available for controlling the video tape deck mechanisms such as the VCRs and DATs. The AN6608, the AN6609N and the AN6609NS are identical with each other except the operating logic by 3-bit input. n Features

• Operating supply voltage range ; Vcc = 8V to 16V
• Stable reference voltage (1.27V) and easy speed adjustment
• Large starting torque and maximum control torque
• Built-in power transistor
• Forward/reverse constant speed and double speed controls, and fast forward, brake, and pause functions available by 3-bit input n Applications VCRs, cassette decks, radio/cassette tape recorders, car cassette tape players, tape loading DC motor con trol such as DATs. AN6608, AN6609N, AN6609NS DC Motor Forward/Reverse Dual Speed Electronic Governors 12 4 12 13 Unit : mm 16.0–0.3 (9.2) (7.8) 0.41.27 11.73–0.3 8.4–0.3 (6.0) (4.6)0.5 0.1–0.1 (0.05 ~ 0.1) 3.15–0.2 1.45 1.45 (0.2) AN6609NS 24-Lead HSOP Package (HSOP024-P-0450) 27.4–0.3 0.5–0.1 1.2–0.252.54 1.5–0.13.80–0.3 + 0.1 – 0.05 0.5–0.1ø 2.1 Unit : mm 1.7 2.54 1.06–0.25 21.6–0.3 5.08–0.1 16-Lead DIP Package with Fin (HDIP016-P-300) AN6608, AN6609N

AN6608, AN6609N, AN6609NS ICs for Motor 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 C om p. D rive M ode Sw itching Logic V C CG N D V R EF Forw ard/ R everse D rive C ircuit 1kΩ 10kΩ G N D Fin A N 6608, A N 6609N n Block Diagram 24 1314151617181920212223 1 12111098765432 V R EF C om p. M P1 P2 P3 V C C A N 6609N S PT N ote) For m otor lock, V C C =13V or less, M otor coil resistance = 8Ω or m ore, Lock tim e =1s or less. D rive M ode Sw itching Logic Forw ard/ R everse D rive C ircuit

ICs for Motor AN6608, AN6609N, AN6609NS n Absolute M axim um R atings (Ta= 25˚C ) V C C IC C Topr Tstg Supply V oltage Supply C urrent O perating A m bient Tem perature Storage Tem perature V m A Param eter Sym bol R ating U nit

1800 N ote 1)

–20 ~ + 70 –50 ~ +150 N ote 1) t ≤ 200m s N ote 2) M ounting on PC B (20m m × 20m m of copperfoil is used for heat sink) N ote 3) G lass epoxy PC B (50m m × 50m m × 1.2m m ) Pow er D issipation PD W2 N ote 2)

2.08 N ote 3)

A N 6608, A N 6609N A N 6609N S Param eter Sym bol R ange O perating Supply V oltage R ange V C C 8V ~ 16V n R ecom m ended O perating R ange (Ta = 25˚C ) n Electrical C haracteristics (Ta = 25˚C ) V C C =12V V C C =12V Supply voltage w ith w hich a m otor starts rotating V C C =12V , N =1600rpm V C C =8V , IL=55m A ~ 120m A V C C =8V ~ 16V , N =1600rpm V C C =12V , N =3200rpm V C C =8V , IO =1A V C C =8V , IO =1A V C C =12V , Ta= –10˚C ~ + 60˚C V C C =12V , t=15s ~ 10m s Param eter Sym bol C ondition m in. typ. m ax. U nit 1.27 100 0.4 B ias C urrent at N o Load R eference V oltage R ated Load Start V oltage R ated r.p.m . r.p.m . C haracteristics on Load C hange r.p.m . C haracteristics on V oltage C hange D ouble Speed Forw ard/R everse r.p.m . D ifference O utput Saturation V oltage 1 O utput Saturation V oltage 2 r.p.m . C haracteristics on Tem perature C hange r.p.m . D rift C haracteristics by Tim e Ibias V ref V C C (s) N L D N L D N V D N Logi V sat (1) V sat (2) D N A D N T m A V V rpm rpm V V rpm /˚C 1.15 6.5 –8.75 –100 –22 1.4 8.75 100 1.5 n Application Circuit 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 M P1 P2 P3 + – 0.022µF C 2 R 5 1.5kΩ5kB 5.6kΩR 4 1kΩ 10kΩ V R EF C om p. 2000 ppm /˚CR 1 11kΩ R 2 2.7kΩ V R 1 1kB R 1 1.0Ω (3900ppm /˚C ) C 1 4.7µF– + L1 47µH V C C To M echanism C ontrolA N 6608 A N 6609N D rive M ode Sw itching Logic Forw ard/ R everse D rive C ircuit Fin

AN6608, AN6609N, AN6609NS ICs for Motor Equivalent C ircuitD escriptionPin N o.

1 D ouble Speed

Setting Pin to set the double speed r.p.m . Input Im pedancePin N am e Typ. W aveformA N 6608 A N 6609N A N 6609N S

2 TrC

2 FF, R EW

Speed Setting Pin to set the FF/R EW r.p.m .4 TrC

3 Speed C ontrol

A fixed resistor w ill do if fine adjustm ent is unnecessary.

5 TrE

4 Phase

oscillation prevention6 TrE

5 Pin to connect the m otor side7

6 Phase

7 G N D

G N D pin for the pow er section inside the IC9 8 11 Load C haracteristics Setting Pin to set the load characteristics (S–T curve) of the m otor Pin to connect the m otor side TrE TrC TrC TrE TrE TrC TrC V C C V C C V C C V C C n Pin D escriptions

ICs for Motor AN6608, AN6609N, AN6609NS n Pin D escriptions (C ont.) Equivalent C ircuitD escriptionPin N o.

10 V C C IC pow er pin

Input Im pedancePin N am e Typ. w aveformA N 6608 A N 6609N A N 6609N S C onnect to Pin9 . R ef. V oltage O utput R eference voltage output pin w hen connecting to the pin9.19 TrC

12 G N D G N D pin for the IC bias section20

14 Logic Input P3 Logic input pin P3 to set

15 Logic Input P2 Logic input pin P2 to set

the m otor control state24

16 Logic Input P1

60kΩ 60kΩ 60kΩ 13 R ef. V oltage O utput R eference voltage output pin21 TrC V C C V R EF 60kΩ 40kΩ 60kΩ 40kΩ 60kΩ 40kΩ

AN6608, AN6609N, AN6609NS ICs for Motor Input Pins O utput Pins (A N 6608) O utput Pins (A N 6609N ) 15 16 5 8 1 2 5 8 1 2O perating M ode O perating M ode H H H H L O FF O N — — O FF O FFFF Pause L H H L H O FF O N H L O N O FFR EW D ouble speed H L H H L O FF O FF H L O FF O FFC onstant speed C onstant speed H H L H H O FF O FF H H O FF O FFB rake B rake L L H H L O N O FF H L O FF O ND ouble speed FF L H L L H O N O FF L H O N O FFR everse double speed R everse double speed H L L L H O FF O FF L H O FF O FFR everse constant speed R everse constant speed L L L — — O FF O FF — — O FF O FFPause Pause * Input level H : 3V or m ore, Input level L : 0.7V or less For the A N 6609N S, the above pin num bers m ust be replaced. PD – Ta 2.5 2.0 1.5 1.0 0.5 A m bient Tem perature Ta (˚C ) Pow er D issipation PD (W ) 400 20 60 100 140–20 80 120 160 (1) (2) (1) 10m m × 20m m , w ith Solder Plated C opper Foil, H eat Sink (2) W ithout H eat Sink PD – Ta 2,400 2,200 2,000 1,800 1,600 1,400 1,200 1,000 800 600 400 200 A m bient Tem perature Ta (˚C ) Pow er dissipation PD (m W ) 250 75 125 G lass epoxy PC B (50 × 50 × 1.2m m ) R thj – a = 60˚C /W PD = 2083m W (25˚C ) 15010050 2,083 1,420 W ithout PC B R thj – a = 88˚C /W PD = 1420m W (25˚C ) AN 6608, AN 6609N AN 6609N S n Supplem entary Explanation

• O perating Logic
• C haracteristics C urve