TEA1612T/N1,518 NXP Semiconductors, TEA1612T/N1,518 Datasheet - Page 10

• Manufacturer Part Number: TEA1612T/N1,518
• Description: IC RESONANT CONV CTRLR 24SOIC
• Manufacturer: NXP Semiconductors

Specifications of TEA1612T/N1,518

• Applications: Resonant Converter Controller
• Voltage - Supply: 11 V ~ 13 V
• Current - Supply: 2mA
• Operating Temperature: -25°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935286866518

NXP Semiconductors
TEA1612T_1
Product data sheet
7.12 Overcurrent protection and timer
7.13 Overtemperature protection
7.14 Brownout protection
7.15 PFC disable function
The OCP input continuously compares the voltage on pin OCP with V
OCP pin voltage is higher than V
during the next full CF cycle or else the timer capacitor will be discharged with I
In case the CT voltage exceeds V
The timer capacitor will be discharged with I
after which a soft start cycle is started.
The TEA1612T continuously monitors its temperature. When the temperature exceeds the
T
The brownout protection compares the actual BO pin with the V
voltage (see
activates an internal current source I
pin voltage becomes larger than V
The PFC output pin is an open-drain output. Operation of the PFC pin is internally enabled
when the voltage on the BO pin is higher than V
V
The PFC output is pulled low when:
This PFC output signal can be used to switch off the power corrector in the application
during Burst mode (and during protection) to further reduce standby power losses.
otp(act)
trip(bo)
•
•
•
•
The overtemperature protection is active.
The OCP timer has timed out.
The TEA1612T has been set to shut-down.
During the off-time in burst mode.
, the PFC output is always in the open-drain state.
level, the TEA1612T will switch to the shut-down mode.
Figure
7) is lower than V
Rev. 01 — 24 September 2009
ref(OCP)
Zero voltage switching resonant converter controller
trip(H)(CT)
trip(bo)
bo(hys)
trip(bo)
, the timer capacitor CT will be charged with I
, the TEA1612T will start-up again.
the TEA1612T will switch to shut-down mode.
, the TEA1612T switches to start-up mode and
to create a brownout hysteresis. When the BO
dch
until the CT voltage reaches V
trip(bo)
. When the voltage is lower than
trip(bo)
TEA1612T
ref(OCP)
voltage. If the BO
© NXP B.V. 2009. All rights reserved.
. When the
trip(L)(CT)
leak
.
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ch