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| 型號： | TEA1610T/N5,118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, SO-16 |
| 文件頁數(shù)： | 18/21頁 |
| 文件大小： | 112K |
| 代理商： | TEA1610T/N5,118 |
TEA1610T_P_3
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 26 March 2007
6 of 21
NXP Semiconductors
TEA1610P; TEA1610T
Zero-voltage-switching resonant converter controller
8.2 Oscillator
The internal oscillator is a current-controlled oscillator that generates a sawtooth output.
The frequency of the sawtooth is determined by the external capacitor Cf and the currents
owing into the IFS and IRS pins.
The minimum frequency and the dead time are set by the capacitor Cf and resistors Rf(min)
frequency is exactly twice the bridge frequency to achieve an accurate 50 % duty factor.
An overview of the oscillator and driver signals is given in Figure 6.
8.3 Dead time resistor
The dead time resistor Rdt is connected between the 3 V reference pin (VREF) and the IFS
current input pin (see Figure 10). The voltage on the IFS pin is kept constant at a
temperature independent value of 0.6 V. The current that ows into the IFS pin is
determined by the value of resistor Rdt and the 2.4 V voltage drop across this resistor. The
IFS input current equals the discharge current of capacitor Cf and determines the falling
slope of the oscillator.
The falling slope time is used to create a dead time (tdt) between two successive switching
actions of the half-bridge switches:
Fig 6.
Oscillator and driver signals
mgt999
t
dead time (high to low)
dead time (low to high)
CF
GH-SH
GL
0
I
IFS
2.4V
R
dt
-----------
=
t
dt
C
f
V
Cf
×
I
IFS
--------------------------
=
t
IFS
t
dt
=
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| TEA1611T/N1,518 | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 IC RESONANT CONV CTRLR RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TEA1611T/N2,518 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 5VIN 2.5VOUT 50% RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| TEA1611T/N2518 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| TEA1612T/N1,518 | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 IC RESONANT CONV CTRLR RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TEA1613T/N1,518 | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 IC CTLR RESONANT CONV RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
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