TEA1532
Philips Semiconductors
GreenChip II SMPS control IC
V
i
V
V
i
DRAIN
V
O
V
V
start
CC
V
UVLO
V
DRIVER
2.5 V
(1)
V
PROTECT
Start-up
sequence
Normal
operation
External
OTP
001aaa841
(1) When VPROTECT is forced above 3 V, the protection is always latched. So the IC is not started at
Vstart unless the VCC voltage drops below the VCC(reset) level. This is the same action used for
external OTP compensation described in Section 7.15.
Fig 12. Typical waveforms 2.
9397 750 13113
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet
Rev. 01 — 28 May 2004
18 of 27
NXP [ NXP ]
