TDA7278 STMicroelectronics, TDA7278 Datasheet
TDA7278
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TDA7278 Summary of contents
Page 1
... PIN CONNECTION OUT 2A 3 FLIN 2 4 VBAT 5 FLIN 1 6 GND 7 H OUT OUT 1B OUT 10 VHIGH March 1997 PQFP44 ADJUSTABLE COMPARATORS FOR BAT- TERY LOW AND BATTERY EMPTY DETEC- TION D94AU112A TDA7278 OUT 4A FLIN 4 VBAT FLIN 3 GND H OUT OUT 3B ENABLE SYNC 1/15 ...
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... TDA7278 ABSOLUTE MAXIMUM RATINGS (25 C) Pin Name HIN 1, HIN 2, HIN 3, HIN 4 HOUT 1A, HOUT 2A, HOUT 3A, HOUT 4A, HOUT 1B, HOUT 2B, HOUT 3B, HOUT 4B FLIN 1, FLIN 2, FLIN 3, FLIN 4 ERROR 1, ERROR 2, ERROR 3, ERROR 4, V BAT REF 1 REF 2 BLOW, BEMP, V CON OUT, VHIGH OUT 2 OUT 1 SSCAP, IRC, INP ...
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... HOUT2A H bridge positive output 1 HIN 2 Regulated voltage H bridge supply 44 HOUT 2B H bridge negative output 42 ERROR 2 Error input TDA7278 Function controller output Watch dog & reset circuit Battery control circuit Band Gap Reference VCPU DC-DC converter Vhigh Boost DC-DC Converter Oscillator Focus actuator step down converter & ...
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... TDA7278 ELECTRICAL CHARACTERISTICS (T Symbol Parameter V Power Supply Config. in fig. 3a: V BAT ( Config. in fig. 3a: V amb Config. in fig. 3b Config. in fig. 3c Stand-by condition Config. in fig 3a Power Supply Config. in fig Config. in fig. 3b amb Config. in fig. 3c Stand-by condition Config. in fig 3a Current Consumption from V V (1) CPU ...
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... DRIV DRIV - VHIGH DRIV VHIGH VHIGH + DRIV DRIV - - Vbg + VHIGH VBAT DRIV Vbg/2 VHIGH VHIGH + DRIV DRIV - Vbg VHIGH DRIV VHIGH VHIGH + DRIV DRIV - GND GND D94AU078B TDA7278 VBAT OUT OUT 1B VBAT OUT OUT 3B VBAT OUT OUT 2B VBAT OUT OUT 4B 5/15 ...
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... TDA7278 Figure 2: Test Circuit VBAT SYNC CAP 22 OSCILL 470pF VREF ( VHIGH 11 VBAT OUT 10 F AUXIL STEP UP INP 13 FEEDBAKC & IRC 14 COMPENSATION NETWORK (see fig.4) VCPU 15 STEP LP OUT1 16 VHIGH or STEP DOWN STRUCTURE DRIV (see fig.3) OUT2 17 SSCAP VBG 18 100nF REFERENCE 24 Vbg ENABLE ...
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... Figure 3: DC – DC Converter Configuration VCPU 15 VBAT VHIGH L 16 OUT 1 DRIV OUT 2 17 D94AU081B a) step-up VCPU 15 VBAT VHIGH 16 OUT 1 DRIV L OUT 2 17 D94AU082B b) step-down VCPU 15 VBAT VHIGH 16 OUT 1 DRIV OUT 2 17 D94AU083B c) with transformer TDA7278 7/15 ...
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... TDA7278 Figure 4: DC – DC Converter: Feedback and Compensation Networks. VCPU SETTING RESISTOR Dominant Pole Compensation Extended Bandwidth 2 zero, 2 pole compensation Extended Bandwidth 2 zero, 3 pole compensation 8/15 INP IRC Vbg VCPU 15 D94AU113A INP IRC - VCPU + Vbg 15 D94AU114A INP IRC - VCPU + Vbg D94AU115A ...
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... ZERO, 2 POLE 11.18K R3 = 100 936pF Rf = 16.65K Cf = 5.6nF R4 = 70K a) DOMINANT POLE R = 100K Cf = 220nF R4 = 70K c) 2 ZERO, 3 POLE 500 18nF R2 = 20. 250K C2 = 636pF Rf = 21. 7.44nF R4 = 200K c) 2 ZERO, 3 POLE R1 = 500 C1 = 18nF 10. 250K C2 = 318pF Rf = 21. 3.7nF R4 = 200K PINS: 8, 7,9 12V TDA7278 VHIGH + - VHIGH D96AU448A 9/15 ...
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... TDA7278 PINS: 25, 26, 27 12V VHIGH 26 27 VHIGH 25 D96AU449A PIN: 3 12V VBAT VHIGH 4 3 VHIGH D96AU451 PIN: 29 12V VBAT VHIGH 30 29 VHIGH D96AU453 10/15 PINS: 32, 33, 34 12V PINS: 5 12V VBAT 4 5 PINS: 31 12V VBAT 30 31 VHIGH + - VHIGH D96AU450A VHIGH VHIGH D96AU452 VHIGH ...
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... PINS: 35 VCPU - D96AU465 PIN: 42 VCPU - D96AU467 PIN: 18 VBAT 18 + REFERENCE - 7V D96AU458 PIN PIN PINS: 19 VBAT 19 7V TDA7278 VCPU - + D96AU466 VCPU - + D96AU468 D96AU459 11/15 ...
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... TDA7278 PINS: 20 VCPU 1 0.7 0.6 D96AU460A PIN: 22 VBAT 1 0.6 0.2 D96AU462 PIN: 24 VBAT VBAT 24 12V D96AU464A 12/15 PINS: 21 VCPU VCPU + - VCPU + VCPU + - D96AU461A PIN: 23 VBAT + - VBAT + VBAT + - PINS: 10, 11 17V VBAT VCPU VCPU + - VCPU - + VCPU D96AU463 D96AU474 ...
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... PINS: 12, 13, 14 VBAT VBAT VBAT - 13 + VBG D96AU475 PINS: 37, 38 VCPU VCPU D96AU469 PINS: 40, 41 VBG VCPU - + 40 5V VCPU - + D96AU471 PINS: 16 17V D96AU476 PIN: 39 VCPU 39 7V D96AU470A TDA7278 13/15 ...
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... TDA7278 PQFP44 (10x10) PACKAGE MECHANICAL DATA mm DIM. MIN. TYP 0.25 A2 1.95 2.00 B 0.30 c 0.13 D 12.95 13.20 D1 9.90 10.00 D3 8.00 e 0.80 E 12.95 13.20 E1 9.90 10.00 E3 8.00 L 0.65 0. 14/15 MAX. MIN. 2.45 0.010 2.10 0.077 0.45 0.012 0.23 0.005 13.45 0.51 10 ...
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... SGS-THOMSON Microelectronics products are not authorized for use as criticalcomponents in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1997 SGS-THOMSON Microelectronics All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A. TDA7278 15/15 ...