TEA1713T/N1,518 NXP Semiconductors, TEA1713T/N1,518 Datasheet - Page 30

• Manufacturer Part Number: TEA1713T/N1,518
• Description: IC CTLR RESONANT PFC 24SOIC
• Manufacturer: NXP Semiconductors

Specifications of TEA1713T/N1,518

• Package / Case: *
• Mounting Type: *
• Frequency - Switching: 125kHz
• Mode: Discontinuous Conduction (DCM)
• Switching Frequency: 125 KHz
• Maximum Power Dissipation: 0.8 W
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Operating Temperature: -
• Current - Startup: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935289598518

NXP Semiconductors
TEA1713T
Product data sheet
Fig 18. Overcurrent regulation during start-up
V
I
SSHBC/EN
SSHBC/EN
V
−I
ss(hf-lf)(SSHBC)
−I
V
I
I
V
7.8.10.3 Overcurrent protection, OCP-HBC
ss(hf)(SSHBC)
I
ss(hf)(SSHBC)
Cur(HBC)
ss(If)(SSHBC)
ss(If)(SSHBC)
fmax(SSHBC)
fmin(SSHBC)
V
7.8.11 HBC capacitive mode regulation, CMR (pin HB)
Output
V
−I
reg
I
ocr
ocr
0
0
0
The protection timer is also started. The Restart state is activated when the OCR-HBC
condition is still present after the protection time has elapsed.
Under normal operating conditions, OCR is able to ensure the current remains below the
specified maximum values. In the event of certain error conditions, however, it might not
be fast enough to limit the current. OCP is implemented to protect against those error
conditions. The OCP level, V
V
When the OCP level is reached, the frequency immediately jumps to the maximum value
via the soft start reset, followed by a normal sweep down.
The MOSFETs in the half-bridge drive the resonant circuit. Depending on the output load,
the output voltage, and the switching frequency this resonant circuit can have an inductive
impedance or a capacitive impedance. Inductive impedance is preferred because it
facilitates efficient zero-voltage switching.
Harmful switching in Capacitive mode is prevented by the adaptive non-overlap time
function (see
Mode Regulation (CMR). CMR causes the half-bridge circuit to return to Inductive mode
from Capacitive mode.
ocr(HBC)
Fast soft-start sweep (charge and discharge)
.
Section
All information provided in this document is subject to legal disclaimers.
7.8.4.2). An extra action is performed which results in Capacitive
Rev. 2 — 9 February 2011
ocp(HBC)
(typ. −1 V and +1 V), is higher than the OCR level
Resonant power supply control IC with PFC
Slow soft-start sweep (charge and discharge)
TEA1713T
© NXP B.V. 2011. All rights reserved.
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