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參數(shù)資料
| 型號(hào)： | TEA1200TS |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.95 V starting DC-to-DC converter with low battery indicator |
| 中文描述： | 5 A SWITCHING REGULATOR, 720 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, PLASTIC, MO-152, SOT-369-1, SSOP-16 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 104K |
| 代理商： | TEA1200TS |
2002 May 14
6
Philips Semiconductors
Product specification
0.95 V starting DC-to-DC converter
with low battery indicator
TEA1200TS
When the output voltage becomes lower than the low limit
of the window, a corrective action is taken by a ramp-up of
the inductor current during a much longer time. As a result,
the DC current level is increased and normal PWM control
can continue. The output voltage (including ESR effect) is
again within the predefined window.
Figure 4 shows the spread of the output voltage window.
The absolute value is mostly dependent on spread, while
the actual window size [V
wdw(high)
V
wdw(low)
] is not
affected. For one specific device, the output voltage will
not vary more than 2% (typical value).
In low output power situations, the TEA1200TS will switch
over to PFM operating mode. In this mode, regulation
information from an earlier PWM operating mode is used.
This results in optimum inductor peak current levels in the
PFM mode, which are slightly larger than the inductor
ripple current in the PWM mode. As a result, the transition
between PFM and PWM mode is optimum under all
circumstances. In the PFM mode the TEA1200TS
regulates the output voltage to the high window limit as
shown in Fig.3.
handbook, full pagewidth
MGK925
start corrective action
load increase
high window limit
low window limit
Vo
IL
time
time
Fig.3 Response to load increase.
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相關(guān)代理商/技術(shù)參數(shù) |
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| TEA1201TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:0.95 V starting basic power unit |
| TEA1202 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Battery power unit |
| TEA1202TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Battery power unit |
| TEA1204 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:High efficiency DC/DC converter |
| TEA1204T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:High efficiency DC/DC converter |
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