NXP Semiconductors
TEA1993TS
GreenChip synchronous rectifier controller
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Date of release: 14 September 2016
Document identifier: TEA1993TS
Contents
1 General description ............................................ 1
2 Features and benefits .........................................1
2.1 Efficiency features ............................................. 1
2.2 Application features ........................................... 1
2.3 Control features ................................................. 1
3 Applications .........................................................2
4 Ordering information .......................................... 2
5 Marking .................................................................2
6 Block diagram ..................................................... 3
7 Pinning information ............................................ 4
7.1 Pinning ............................................................... 4
7.2 Pin description ................................................... 4
8 Functional description ........................................5
8.1 Introduction ........................................................ 5
8.2 Start-up and UnderVoltage LockOut (UVLO;
CAP and XV pins) ............................................. 5
8.3 Drain sense (DRAIN pin) ...................................5
8.4 Synchronous rectification (DRAIN and
SOURCE pins) .................................................. 6
8.5 Gate driver (GATE pin) ......................................6
8.6 Source sense (SOURCE pin) ............................ 7
9 Limiting values .................................................... 8
10 Thermal characteristics ......................................8
11 Characteristics .................................................... 9
11.1 Temperature curves .........................................11
11.1.1 Charge current (CAP pin) ................................11
11.1.2 Operating current (XV pin) .............................. 11
11.1.3 Driver regulation voltage ..................................12
11.1.4 Gate pull-down resistance ............................... 12
11.1.5 Switch-off voltage ............................................ 13
11.1.6 Minimum synchronous rectification active
time .................................................................. 13
12 Application information .................................... 14
13 Package outline .................................................15
14 Revision history ................................................ 16
15 Legal information .............................................. 17
