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TEA1708T

NXP
Part Number TEA1708T
Manufacturer NXP
Description GreenChip X capacitor discharger
Published Feb 1, 2016
Detailed Description TEA1708T GreenChip X capacitor discharge IC Rev. 1.1 — 6 April 2020 Product data sheet 1 General description The TEA1...
Datasheet PDF File TEA1708T PDF File

TEA1708T
TEA1708T

Overview
TEA1708T GreenChip X capacitor discharge IC Rev.
1.
1 — 6 April 2020 Product data sheet 1 General description The TEA1708 is an automatic discharge IC for X capacitors with a low power consumption (typically 1 mW at 230 V (AC).
A 500 V clamping circuit is integrated, protecting the IC during mains surges.
In a typical application with only two 200 kΩ resistors, the maximum differential mode mains surge voltage allowed exceeds 6 kV.
A metal-oxide varistor is not required to protect the IC.
The X-capacitor discharge current is internally limited to 2.
3 mA.
The discharge delay timer is set externally using a low-voltage capacitor.
To reduce EMI while retaining the low standby power, the very low power consumption with a high discharge current enables the use of a high value X-capacitor.
2 Features and benefits • 1 mW power consumption at 230 V (AC) • Integrated 500 V clamp; no metal oxide varistor required to protect the IC • Self-Supplied, no external bias required • Discharge current internally limited • Adjustable discharge delay • Very high differential surge: 6 kV with two 200 kΩ resistors • Easier application design, resolving EMI issues while retaining the efficiency level 3 Applications • All AC-connected power supplies with X-capacitors > 100 nF requiring a low load standby power.
4 Ordering information Table 1.
 Ordering information Type number Package Name TEA1708T/1 SO8 Description plastic small outline package; 8 leads; body width 3.
9 mm Version SOT96-1 NXP Semiconductors 5 Marking Table 2.
 Marking codes Type number TEA1708T/1 6 Block diagram TEA1708T GreenChip X capacitor discharge IC Marking code TEA1708 HV1 500 V 1 µA 20 V HV2 500 V Figure 1.
 TEA1708 block diagram 1.
2 V TMR1 TMR2 aaa-007783 TEA1708T Product data sheet All information provided in this document is subject to legal disclaimers.
Rev.
1.
1 — 6 April 2020 © NXP B.
V.
2020.
All rights reserved.
2 / 12 NXP Semiconductors TEA1708T GreenChip X capacitor discharge I...


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