전자부품 데이터시트 검색엔진 |
|
TC18C43MJD 데이터시트(PDF) 1 Page - TelCom Semiconductor, Inc |
|
TC18C43MJD 데이터시트(HTML) 1 Page - TelCom Semiconductor, Inc |
1 / 7 page 4-93 TELCOM SEMICONDUCTOR, INC. 7 6 5 4 3 1 2 8 BiCMOS CURRENT MODE PWM CONTROLLERS UNDER VOLTAGE SECTION VREF OSC 12 9 5 3 1 2R ERROR AMP LIMIT BUFFER R CLK PWM COMPARATOR 2.5V 1.4V UV GOOD 14 VREF 7 R/ T CT VDD 11 OUTPUT 10 PIN NUMBERS FOR 14-PIN DIP COMP VFB 2.5V SENSE ANALOG GND VIN CLK 0.4V – + + – + – S R POWER GROUND 8 Q 1.4V + – TC38C43-7 10/21/96 FEATURES s Low Power BiCMOS Design s Tough CMOSTM Construction s Low Supply Current ............. 1.0mA Typ @ 100kHz s Wide Supply Voltage Operation .............. 8V to 15V s Latch-Up Immunity ................... 500mA on Outputs s Input Will Withstand Negative Inputs to – 5 Volts s High Output Drive .................................... 0.7A Peak (1.2A on 14-Pin and 16-Pin Versions) s 2 kV ESD Protection s Current Mode Control s Fast Rise/Fall Time (Max) ........... 60nsec @ 1000pF s High Frequency Operation ..........................500kHz s Clock Ramp Reset Current ................. 2.5mA ±10% s Low Propagation Delay Current Amp to Output ............................................ 140nsec Typ. s Pin Compatible with UC3843 ORDERING INFORMATION Part No. Package Temperature TC18C43MJA 8-Pin CerDIP – 55 °C to +125°C TC18C43MJD 14-Pin CerDIP – 55 °C to +125°C TC28C43EOE 16-Pin SOIC (Wide) – 40 °C to +85°C TC28C43EPA 8-Pin Plastic DIP – 40 °C to +85°C TC28C43EPD 14-Pin Plastic DIP – 40 °C to +85°C TC38C43COE 16-Pin SOIC (Wide) 0 °C to +70°C TC38C43CPA 8-Pin Plastic DIP 0 °C to +70°C TC38C43CPD 14-Pin Plastic DIP 0 °C to +70°C GENERAL DESCRIPTION The TC38C43 is a current mode BiCMOS PWM control IC. With a low 1.0 mA supply current along with high drive current (0.7A peak) it provides a low cost solution for a PWM that operates to 500 kHz and directly drives MOSFETs up to HEX 3 size. Performance of the oscillator and current sense ampli- fier have been greatly improved over previous bipolar ver- sions. Voltage and temperature stability have been im- proved by a factor of 3. Noise immunity (PSRR) has also been improved. The TC38C43 is pin compatible with the earlier bipolar version so that designers can easily update older designs. Improvements have been added, though. For example, clock ramp reset current is specified at 2.5mA ( ±10%) for accurate dead time control. A few component values must be changed (RT & CT) to use the TC38C43 in existing bipolar designs. The 14-pin DIP and 16-pin SOIC versions have sepa- rate and internally isolated grounds, and are rated for higher output current (1.2A). These separate grounds allow for ‘bootstrap’ operation of the PWM to further improve effi- ciency. FUNCTIONAL BLOCK DIAGRAM 1 2 3 4 8 7 6 5 VREF CMPTR OUTPUT ISENSE VIN GND RT/CT VFB TC18CMJA TC28CEPA TC38CCPA NC NC NC OUTPUT POWER GND GND NC VREF VIN RT/CT ISENSE CMPTR VDD VFB 114 213 312 411 510 69 78 1 2 3 4 16 15 14 13 9 8 NC NC NC NC OUTPUT POWER GND GND NC VREF VIN CMPTR VDD VFB TC18CMJD TC28CEPD TC38CCPD 12 11 10 5 6 7 NC RT/CT ISENSE TC28CCOE TC38CEOE 14-Pin Plastic DIP 16-Pin SOIC (Wide) 8-Pin Plastic DIP PIN CONFIGURATIONS TC18C43 TC28C43 TC38C43 |
유사한 부품 번호 - TC18C43MJD |
|
유사한 설명 - TC18C43MJD |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |