TEA1202 查看數據表（PDF） - Philips Electronics
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TEA1202 Datasheet PDF : 28 Pages
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Philips Semiconductors
0.95 V starting power unit
6 BLOCK DIAGRAM
Preliminary specification
TEA1202TS
handbook, full pagewidth
LBI2 12
LBI1 13
LBO 14
1
LX1
LX2 20
5
ILIM
TEA1202TS
3 SHDWN2
11
IN2
Vref
LDO2
10 OUT2
9 FB2
LOW BATTERY
DETECTOR
SHDWN0
Vref
P-type POWER FET
LDO1
sense FET
START-UP
CIRCUIT
INTERNAL
SUPPLY
6
OUT1
7
FB1
4
UPOUT/DNIN
8
GND
N-type
POWER
FET
sense
FET
Vref
CURRENT LIMIT
COMPARATOR
TEMPERATURE
PROTECTION
13 MHz
OSCILLATOR
SYNC
GATE
CONTROL LOGIC
AND
MODE GEARBOX
TIME
COUNTER
DIGITAL CONTROLLER
17
18
2 19
GND0
SYNC/PWM SHDWN0 U/D
16
FB0
Vref
REFERENCE 15
VOLTAGE
Vref
MGU062
Fig.1 Block diagram.
2002 Mar 14
6
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