tea1506at NXP Semiconductors, tea1506at Datasheet - Page 4

• Manufacturer Part Number: tea1506at
• Description: Greenchip Smps Control Ic
• Manufacturer: NXP Semiconductors

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CTRL
Pin numbers in parenthesis represent the SO version.
V CC
GND
1
(2)
2
(3)
3
(6)
TEA1506 AT)
TEA1506AP
(TEA1506T;
TEA1506P;
I prot(CTRL)
3.8 V
1
FREQUENCY
internal
supply
CONTROL
MANAGEMENT
CONTROLLED
TEMPERATURE
OSCILLATOR
PROTECTION
POWER-ON
VOLTAGE
SUPPLY
RESET
UVLO start
OVER-
PROTECTION
MAXIMUM
ON-TIME
(TEA1506AT)
V CC < 4.5 V
or UVLO
Fig.2 Block diagram.
UVLO
COUNTER
LOGIC
UP/DOWN
LOGIC
S
R
S
R
Q
Q
Q
Q
100
mV
VALLEY
winding
short
PROTECTION
blank
VOLTAGE
OCP
LEB
OVER-
DRIVER
0.88 V
OVERPOWER
PROTECTION
clamp
I prot(DEM)
start
soft
S2
I ss
0.5 V
MDB505
(14)
(11)
(7)
(9)
8
4
6
5
DRAIN
DEM
DRIVER
I sense