TEA1521T/N2,518 NXP Semiconductors, TEA1521T/N2,518 Datasheet - Page 4

• Manufacturer Part Number: TEA1521T/N2,518
• Description: IC CTRLR SMPS OVP OTP HV 14SOIC
• Manufacturer: NXP Semiconductors
• Series: STARplug™r

Specifications of TEA1521T/N2,518

• Output Isolation: Isolated
• Frequency Range: 10 ~ 200kHz
• Voltage - Input: 7.5 ~ 40 V
• Voltage - Output: 650V
• Power (watts): 1W
• Operating Temperature: -40°C ~ 145°C
• Package / Case: 14-SOIC (0.154", 3.90mm Width)
• Output Power: 30 W
• Input Voltage: 2.5 V
• Switching Frequency: 550 KHz
• Operating Temperature Range: - 20 C to + 85 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 75 %
• For Use With: 568-4326 - KIT DEMO STARPLUG BRONCO II
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-2334-2; 935269965518; TEA1521TD-T

NXP Semiconductors
7. Pinning information
8. Functional description
TEA152X
Product data sheet
7.1 Pinning
7.2 Pin description
Table 3.
The TEA152x family is the heart of a compact flyback converter, with the IC placed at the
primary side. The auxiliary winding of the transformer can be used for indirect feedback to
control the isolated output. This additional winding also powers the IC. A more accurate
control of the output voltage and/or current can be implemented with an additional
secondary sensing circuit and optocoupler feedback.
The TEA152x family uses voltage mode control. The frequency is determined by the
maximum transformer demagnetizing time and the time of the oscillator. In the first case,
the converter operates in the Self-Oscillating Power Supply (SOPS) mode. In the latter
case, it operates at a constant frequency, which can be adjusted with external
Symbol
V
GND
RC
REG
AUX
SOURCE
n.c.
DRAIN
Fig 2.
CC
GND
REG
V
RC
Pin configuration DIP8
CC
Pin description
Pin
DIP8
1
2
3
4
5
6
7
8
1
2
3
4
All information provided in this document is subject to legal disclaimers.
TEA152xP
001aae137
Rev. 04 — 14 September 2010
SO14
1
2, 3, 4,
5, 9, 10
6
7
8
11
12, 13
14
8
7
6
5
DRAIN
n.c.
SOURCE
AUX
Description
supply voltage
ground
frequency setting
regulation input
input for voltage from the auxiliary winding for timing
(demagnetization)
source of the internal MOS switch
not connected
drain of the internal MOS switch; input for the start-up current
and valley sensing
Fig 3.
GND
GND
GND
GND
REG
V
RC
CC
SMPS ICs for low-power systems
Pin configuration SO14
1
2
3
4
5
6
7
TEA152xT
001aae138
TEA152x
© NXP B.V. 2010. All rights reserved.
14
13
12
11
10
9
8
DRAIN
n.c.
n.c.
SOURCE
GND
GND
AUX
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