參數(shù)資料
型號(hào)： 935261695112
廠商： NXP SEMICONDUCTORS
元件分類： 穩(wěn)壓器
英文描述： 0.25 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDSO8
封裝： SOT-176, 8 PIN
文件頁(yè)數(shù)： 22/22頁(yè)
文件大?。?/td> 154K
代理商： 935261695112
1998 Aug 19
9
Philips Semiconductors
Preliminary specication
Greeny; GreenChip
TEA1501
Supply current tracking
For obtaining good load regulation, especially with low
cost transformers, a tracking circuit is included. The
tracking circuit makes the supply current of Greeny a
function of the secondary load. This makes the voltage
drop across the series resistance of the auxiliary winding
proportional to the voltage drop across the series
resistance of the secondary winding. Therefore, the
secondary output voltage tracks with the Vaux regulation
voltage.
The tracking starts at a counter state of 28. For a counter
state from 28 up to 112 (typical values) the supply current
of Greeny rises linearly with the counter state according to
the following formula (see Fig.7).
For counter states of 112 and higher the supply current
remains on its maximum value.
I
Vaux
k
tracking
N
×
=
Fig.7 IVaux versus counter state.
handbook, halfpage
MGM825
IVaux
(mA)
IVaux(HIGH)
IVaux(LOW)
6.7
1.7
28
56
Ndata
counter state
112
相關(guān)PDF資料
PDF描述
935261770518 1-CH 9-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
935261770112 1-CH 9-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
935261770118 1-CH 9-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
935261770512 1-CH 9-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
935261790112 SPECIALTY CONSUMER CIRCUIT, PDSO28
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