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TEA2095T データシート(PDF) 7 Page - NXP Semiconductors

部品番号. TEA2095T
部品情報  GreenChip dual synchronous rectifier controller
ダウンロード  19 Pages
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メーカー  NXP [NXP Semiconductors]
ホームページ  http://www.nxp.com
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TEA2095T Datasheet(HTML) 7 Page - NXP Semiconductors

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NXP Semiconductors
TEA2095T
GreenChip dual synchronous rectifier controller
TEA2095T
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2020. All rights reserved.
Product data sheet
Rev. 1.1 — 10 April 2020
7 / 19
aaa-018615
0 V
0 V
0 A
Vthreshold
SR switch
low
current
high
current
secondary
current
drain sense-
source sense
voltage
gate
driver
Vact(drv)
td(act)(drv)
Vreg(drv)
Figure 4. Synchronous rectification signals
8.5 Gate driver (GDA and GDB pins)
The gate driver circuit charges the gate of the external SR MOSFET during the rising part
of the current. The driver circuit discharges the gate during the falling part of the current.
The gate driver has a source capability of typically Isource and a sink capability of typically
Isink. The source and sink capability allow a fast turn-on and a fast turn-off of the external
SR MOSFET.
The maximum driver output voltage is limited to VG(max). This high output voltage drives
all MOSFET brands to the minimum on-state resistance.
In applications where the IC is supplied with 5 V, the maximum output voltage of the
driver is limited to 5 V. Logic level SR MOSFETs can be used.
During start-up conditions (VCC < Vstart) and UVLO, the driver output voltage is actively
pulled low.


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