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參數(shù)資料
| 型號(hào)： | TEA1541 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | SMPS control IC with synchronization function |
| 中文描述： | 開關(guān)電源與同步功能控制IC |
| 文件頁數(shù)： | 14/19頁 |
| 文件大?。?/td> | 112K |
| 代理商： | TEA1541 |
2003 Aug 11
14
Philips Semiconductors
Product specification
SMPS control IC with
synchronization function
TEA1541
Notes
1.
2.
3.
Guaranteed by design.
This is also the minimum SMPS switching frequency in synchronized mode.
This is also the maximum oscillator frequency in synchronized mode.
Overcurrent and winding short-circuit protection (pin I
sense
)
V
sense(max)
maximum source voltage for OCP
f
smps(min)
;
V/
t = 0.1 V/
μ
s
f
smps(max)
;
V/
t = 0.1 V/
μ
s
V/
t = 0.5 V/
μ
s
0.48
0.52
0.56
V
0.33
0.37
0.41
V
t
PD
propagation delay from detecting
V
sense(max)
to switch-off
winding short-circuit protection
voltage
blanking time for current and winding
short-circuit protection
soft start current
soft start maximum sense voltage
140
185
ns
V
swp
V/
t = 0.5 V/
μ
s
0.83
0.88
0.96
V
t
leb
320
380
480
ns
I
ss
V
ss(max)
Overvoltage protection (pin DEM)
V
sense
< 0.5 V
45
0.45
60
0.50
75
0.55
μ
A
V
I
OVP(DEM)
OVP trigger current
see Section
“Overvoltage protection”
54
60
66
μ
A
Driver (pin DRIVER)
I
source
source current capability of driver
V
CC
= 9.5 V;
V
DRIVER
= 5 V
V
CC
= 9.5 V;
V
DRIVER
= 5 V
V
CC
= 9.5 V;
V
DRIVER
= 9.5 V
V
CC
> 12 V
100
75
mA
I
sink
sink current capability of driver
500
mA
400
700
mA
V
o(driver)(max)
Temperature protection
maximum output voltage of driver
11.5
12
V
T
prot(max)
maximum temperature protection
level
hysteresis for the temperature
protection level
130
140
150
°
C
T
prot(hys)
8
°
C
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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