参数资料
型号: TPS51020EVM-001
厂商: Texas Instruments
文件页数: 5/28页
文件大小: 0K
描述: EVAL MODULE FOR TPS51020-001
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 2,非隔离
输出电压: 3.3V,5V
电流 - 输出: 6A,6A
输入电压: 8 ~ 20 V
稳压器拓扑结构: 降压
频率 - 开关: 300kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: TPS51020
产品目录页面: 1028 (CN2011-ZH PDF)
相关产品: TPS51020DBTRG4-ND - IC DUAL DC/DC SYNC CTRLR 30TSSOP
296-26971-2-ND - IC DUAL DC/DC SYNC CTRLR 30TSSOP
TPS51020DBTG4-ND - IC DUAL DC/DC SYNC CTRLR 30TSSOP
296-15896-5-ND - IC DUAL DC/DC CTRLR SYNC 30TSSOP
其它名称: 296-18958
TPS51020
SLUS564C ? JULY 2003 ? REVISED OCTOBER 2008
ELECTRICAL CHARACTERISTICS (continued)
TA = ?40 ° C to 85 ° C, 4.5 V < VIN < 20 V, CVIN = 0.1 μ F, CVREG5 = 2.2 μ F, CREF_X = 0.01 μ F, PGOOD = 0.2 V, ENBLx = DDR = VIN,
INVx = COMPx, RSSTRTx = OPEN, TRIP1 = TRIP2 = VIN, LLx = GND, VBSTx = LLx+5, C(OUTx_U, OUTx_D)=1 nF, REG5_IN = 0V, GND =
OUTGNDx = 0 V, VO1_VDDQ = VO2 = 0 V (unless otherwise stated)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
0.85-V REFERENCE CONTROL LOOP
VREFCH1
Error amplifier reference, channel 1 initial
accuracy
Measure COMP1,
TA = 25 ° C
COMP1= INV1,
0.84
0.85
0.86
V
VREFTC1
VREFLN1
Error amplifier reference, channel 1
change with accuracy
Error amplifier reference, channel 1
change with line
0.5%
0.1%
VCHMM
Channel 2 to channel 1 voltage mismatch
0
|5.0|
mV
CONTROL LOOP: SKIP HYSTERSTIC COMPARATOR AND ZERO CURRENT COMPARATOR
VLLHYS
Skip hysteresis comparator hysteresis(1)
1
2
3
VLLOFF
Lload hysteresis comparator offset(1)
0
1
mV
VZOFF
THLTOLL
THLTOHL
Zero current comparator offset(1)
PWM skip delay time
Skip to PWM delay time
10
8
1
18
clks
CONTROL LOOP ERROR AMPLIFIER
IEASRC
IEASNK
FUGB
AOL
CMRCOMP
IINVLEAK
COMPx source current
COMPx sink current
Unity gain bandwidth(1)
Open loop gain(1)
COMPx voltage range(1)(6)
INVx input current
0.2
0.2
0.4
0.9
0.7
2.5
80
VREG5?3
|0.5|
mA
MHz
dB
V
μ A
CONTROL LOOP: DUTY CYCLE, VOLTAGE RAMP, CHANNEL PHASE AND PWM DELAY PATH
fOSC = 270 kHz(3)
86%
88%
DCMAX
Maximum duty cycle
fOSC = 360 kHz
fOSC = 450 kHz(2)
84%
80%
85%
82%
PHCH
TMIN
Channel to channel phase difference(5)
OUTX_U minimum pulse width(1)
PWM phase reversal only
180
100
°
ns
TIMERS: INTERNAL OSCILLATOR (4)
fOSC(hi)
Fast oscillator frequency initial accuracy(2)
RSSTRTx = OPEN
450
fOSC(lo)
Slow oscillator frequency initial accuracy
RSSTRTx = 1M ? or VSSTRT = 3 V
270
kHz
fOSC(tc)
Oscillator frequency over line and temperature
Trimmed for 360 kHz
306
360
414
(1) Ensured by design. Not production tested.
(2) Maximum 450-kHz frequency can be achieved when both channels are enabled.
(3) 270 kHz is the default frequency during start-up for both channels.
(4) See Table 1.
(5) See PWM detailed description
www.ti.com
5
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