TEA1532
Philips Semiconductors
GreenChip II SMPS control IC
V
i
V
V
i
DRAIN
V
O
V
V
start
CC
V
UVLO
V
V
DRIVER
2.5 V
PROTECT
(1)
Start-up
sequence
Normal
operation
OVP
Normal
operation
Output
short-circuit
Brown-out
001aaa840
(1) In CCM, the brown-out protection is implemented by the maximum duty cycle in combination
with pin PROTECT.
Fig 11. Typical waveforms 1.
9397 750 13113
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet
Rev. 01 — 28 May 2004
17 of 27