參數(shù)資料
型號： TPS56300PWP
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 2 A DUAL SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO28
封裝： GREEN, PLASTIC, HTSSOP-28
文件頁數(shù)： 3/39頁
文件大?。?/td> 1063K
代理商： TPS56300PWP
TPS56300
DUALOUTPUT LOW INPUT VOLTAGE
DSP POWER SUPPLY CONTROLLER WITH SEQUENCING
SLVS261B DECEMBER 1999 SEPTEMBER 2000
11
www.ti.com
electrical characteristics TJ = 40° to 125°C, VCC = 2.8 V to 5.5 V (unless otherwise noted)
buffered reference
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREFB output voltage
IREFB=50 A,
Accuracy from VREF nominal
VREF
1.5%
VREF
+1.5%
V
VREFB output voltage
IREFB=50 A,
Accuracy from VREF nominal
TJ = 40°C,
See Note 2
VREF0.6%
V
VREFB load regulation
10
A < IREFB < 500 A
2
mV
NOTE 2. Ensured by design, not production tested.
thermal shutdown
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Over temperature trip point
See Note 2
145
°C
Hysteresis
See Note 2
10
°C
NOTE 2. Ensured by design, not production tested.
synch charge pump regulator
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Internal oscillator frequency
2.8 V < VIN < 5.5 V, IDRV = 50 mA,
VDRV=5 V
200
300
400
kHz
Internal oscillator turnon threshold
VCC above UVLO threshold,
See Note 2
5.05
5.2
V
Internal oscillator turnon hysteresis
VCC above UVLO threshold,
See Note 2
20
mV
NOTE 2. Ensured by design, not production tested.
hysteretic comparator (charge pump)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Threshold
VIN above UVLO threshold,
See Note 2
5.05
5.2
V
Hysteresis
VIN above UVLO threshold,
See Note 2
20
mV
NOTE 2. Ensured by design, not production tested.
bias regulator
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Output voltage
2.8V < VIN < 5.5 V, Rip reg operating
See Note 3
6.1
V
NOTE 3. The BIAS regulator is designed to provide a quiet bias supply for TPS56300 controller. External loads should not be driven by the BIAS
Regulator.
deadtime circuit
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LOSENSE/LOHIB high level input voltage
VHISENSE=2.55 V – 5.5 V,
See Note 2
2.4
V
LOSENSE/LOHIB low level input voltage
VHISENSE=2.55 V – 5.5 V,
See Note 2
1.33
V
LOWDR high level input voltage
VHISENSE=2.55 V–5.5 V,
See Note 2
3
V
LOWDR low level input voltage
VHISENSE=2.55 V–5.5 V,
See Note 2
1.7
V
Driver nonoverlap time
Clowdr = 9 nF, 10% threshold on LOWDR, VDRV=5 V
40
170
ns
NOTE 2. Ensured by design, not production tested.
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TPS56300PWPR 功能描述:DC/DC 開關(guān)控制器 Dual Output Low Input Vltg Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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