參數(shù)資料
型號: TEA1552
廠商: NXP Semiconductors N.V.
英文描述: GreenChipII SMPS control IC
中文描述: GreenChipII開關(guān)電源控制IC
文件頁數(shù): 4/24頁
文件大小: 119K
代理商: TEA1552
2002 Aug 27
4
Philips Semiconductors
Product specification
GreenChip
II SMPS control IC
TEA1552
BLOCK DIAGRAM
handbook, full pagewidth
SUPPLY
MANAGEMENT
internal
supply
UVLO
start
M-level
VCC
8
10
13
300
1
3
GND
STDBY
S1
CTRL
FREQUENCY
CONTROL
VOLTAGE
CONTROLLED
OSCILLATOR
LOGIC
LOGIC
OVER-
VOLTAGE
PROTECTION
OVER-POWER
PROTECTION
short
winding
soft
start
S2
OVER-
TEMPERATURE
PROTECTION
S
Q
R
UVLO
Q
MAXIMUM
ON-TIME
PROTECTION
POWER-ON
RESET
1
VALLEY
TEA1552
100 mV
clamp
DRIVER
START-UP
CURRENT SOURCE
12
LOCK
VCOadj
0.88 V
0.5 V
5.6 V
2
11
Isense
VCC(5V)
4
DRIVER
MBL499
14
DEM
7
DRAIN
5, 6
HVS
OCP
LEB
blank
Iss
lock
detect
2.5 V
S
Q
R
VCC < 4.5 V
Q
5 V/1 mA
(max)
Fig.2 Block diagram.
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TEA1552T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChipII SMPS control IC
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TEA1553T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip II SMPS control IC