TEA1532 Philips Semiconductors, TEA1532 Datasheet - Page 3

• Manufacturer Part Number: TEA1532
• Description: GreenChip SMPS control IC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
5. Block diagram
PROTECT
9397 750 13113
Preliminary data sheet
Fig 1. Block diagram.
CTRL
GND
V
CC
1
4
3
2
300
COMPENSATION
I
discharge
I slopecomp
S1
SLOPE
0.63 V
I
charge
control
detect
5.6 V
5.6 V
V
m
OSCILLATOR
1
internal
supply
MANAGEMENT
SUPPLY
POWER-ON
UVLO start
RESET
PROTECTION
3 V
MAXIMUM
ON-TIME
2.5 V
protect
detect
Rev. 01 — 28 May 2004
Duty_Max
Osc_Rdy
UVLO
DETECTION
TEMPERATURE
PROTECTION
DCM
CCM
AND
OVER-
LOGIC
LOGIC
S3
S
R
Q
Q
CURRENT SOURCE
START-UP
DCM and CCM
V CC < 4.5 V
VALLEY
GreenChip II SMPS control IC
DRIVER
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
blank
PROTECTION
BROWN-OUT
OCP
S
R
LEB
80
mV
Q
Q
clamp
I
prot(dem)
TEA1532T
TEA1532P
TEA1532
start
soft
S2
coa014
0.5 V
I
mV
ss
50
8
5
7
6
DRAIN
DEM
DRIVER
SENSE
3 of 27