TEA1501 Philips Semiconductors, TEA1501 Datasheet - Page 4

• Manufacturer Part Number: TEA1501
• Description: Greeny; GreenChip
• Manufacturer: Philips Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
PINNING
1998 Aug 19
handbook, full pagewidth
SYMBOL
Greeny; GreenChip
OOD
Vaux
Gnd
n.c.
Drn
Src
Ref
Bt
PIN
1
2
3
4
5
6
7
8
OOD
Gnd
Bt
source of the power switch and input
for primary current sensing
on/off input and data transfer output
input for burst capacitor
input for reference resistor
supply input of the IC and input for
voltage regulation
ground
not connected to comply with safety
requirements
drain of the power switch and input
for startup current
6
3
2
data on
BURST OSCILLATOR
SUPPLY CURRENT
MODULATOR
DESCRIPTION
TRACKING
on/off level
data off
Fig.2 Block diagram.
Vaux MANAGEMENT
REFERENCE BLOCK
TEMPERATURE
Vaux
PROTECTION
COUNTER
5
LOGIC
4
TEA1501
handbook, halfpage
Ref
4
startup current source
LEADING EDGE
GATE DRIVER
OSCILLATOR
BLANKING
SWITCH
OOD
Ref
Src
Bt
Fig.3 DIL8 Package.
1
2
3
4
TEA1501
V detect
power
switch
MGM821
MGM820
Drn
Preliminary specification
8
1
7
6
5
8
Drn
Gnd
Vaux
n.c.
Src
TEA1501