 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
TPS54292PWPR Datasheet(PDF) 3 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
TPS54292PWPR Datasheet(HTML) 3 Page - Texas Instruments |
|
|
3 / 35 page  TPS54290, TPS54291, TPS54292 www.ti.com SLUS973 – OCTOBER 2009 ELECTRICAL CHARACTERISTICS TJ = –40°C to 125°C, PVDD1 and 2 = 12V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY PVDD1, PVDD2 Input voltage range 4.5 18 V IDDSDN Shutdown current EN1=EN2 = PVDD2 (4.5-18V) 80 160 µA IDDQ Quiescent, non-switching FB1 = FB2 = 1 V, Outputs Off 1.65 3.00 mA IDDSW Quiescent, while switching FB1 = FB2 = 0.75V, measured at BP 10 mA UVLO Minimum turn-on voltage PVDD2 only 3.8 4.1 4.4 V UVLOHYS Hysteresis 460 600 mV Time from startup to soft start CBP=10µF, EN1 and EN2 go low tstart (1) (2) 1.5 ms begin simultaneously ENABLE (ACTIVE LOW) Enable threshold voltage 0.9 1.2 1.5 V V ENx Hysteresis 70 mV I ENx Enable pull-up current 10 µA Time from enable to soft-start t ENx (1) Other enable pin = GND 10 µs begin BP REGULATOR BP Regulator voltage 8 V ≤ VPVDD2 ≤ 18 V 5.0 5.2 5.6 V BPLDO Dropout voltage VPVDD2 = 4.5 V 400 mV IBPS Regulator short current 4.5 V ≤ VPVDD2 ≤ 18 V 25 mA OSCILLATOR TPS54290 260 300 360 kHz fSW Oscillator frequency TPS54291 520 600 720 TPS54292 1040 1200 1440 kHz tDEAD (1) Clock dead time 140 ns gMTRANSCONDUCTANCE AMPLIFIER AND VOLTAGE REFERENCE (Applies to both channels) 0°C < TJ < 85°C 792 800 808 mV VFB Feedback input voltage –40ºC < TJ < 125°C 786 800 812 mV IFB Feedback Input bias current VFB=0.8 V 5 50 nA gM (1) Transconductance 200 325 450 µS Error amplifier source current 15 30 40 µA ISOURCE VFB1=VFB2=0.7 V, VCOMP=0 V capability Error amplifier sink current ISINK VFB1=VFB2=0.9 V, VCOMP=2 V 15 30 40 µA capability SOFT-START (Applies to both channels) TPS54290 0 V ≤ VFB ≤ 0.8 V 4.0 5.2 6.0 tSS Soft-start time TPS54291 2.0 2.6 3.0 ms TPS54292 1.0 1.3 1.6 OVERCURRENT PROTECTION ICL1 Current limit CH1 1.8 2.2 2.6 A ICL2 Current limit CH2 3.2 3.8 4.6 A TPS54290 30 ms THICCUP (1) Hiccup timeout TPS54291 16 TPS54292 8 tONOC (1) Minimum overcurrent pulse 150 200 ns (1) Specified by design. Not tested in production. (2) When both outputs are started simultaneously, a 20-mA current source charges the BP capacitor. Faster times are possible with a lower BP capacitor value. See Input UVLO and Startup. Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s) :TPS54290 TPS54291 TPS54292 |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
