tea1541 NXP Semiconductors, tea1541 Datasheet - Page 14

• Manufacturer Part Number: tea1541
• Description: Smps Control Ic With Synchronization Function
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes
1. Guaranteed by design.
2. This is also the minimum SMPS switching frequency in synchronized mode.
3. This is also the maximum oscillator frequency in synchronized mode.
2003 Aug 11
Overcurrent and winding short-circuit protection (pin I
V
t
V
t
I
V
Overvoltage protection (pin DEM)
I
Driver (pin DRIVER)
I
I
V
Temperature protection
T
T
PD
leb
ss
OVP(DEM)
source
sink
prot(max)
prot(hys)
sense(max)
swp
ss(max)
o(driver)(max)
SMPS control IC with
synchronization function
SYMBOL
maximum source voltage for OCP
propagation delay from detecting
V
winding short-circuit protection
voltage
blanking time for current and winding
short-circuit protection
soft start current
soft start maximum sense voltage
OVP trigger current
source current capability of driver
sink current capability of driver
maximum output voltage of driver
maximum temperature protection
level
hysteresis for the temperature
protection level
sense(max)
to switch-off
PARAMETER
14
f
f
V
see Section
“Overvoltage protection”
V
V
V
V
V
V
V
smps(min)
smps(max)
sense
V/ t = 0.1 V/ s
V/ t = 0.1 V/ s
V/ t = 0.5 V/ s
V/ t = 0.5 V/ s
sense
CC
DRIVER
CC
DRIVER
CC
DRIVER
CC
= 9.5 V;
= 9.5 V;
= 9.5 V;
> 12 V
CONDITIONS
)
< 0.5 V
;
= 5 V
= 5 V
= 9.5 V
;
0.48
0.33
0.83
320
45
0.45
54
400
130
MIN.
0.52
0.37
140
0.88
380
60
0.50
60
500
700
11.5
140
8
100
TYP.
Product specification
TEA1541
0.56
0.41
185
0.96
480
75
0.55
66
12
150
MAX.
75
V
V
ns
V
ns
V
mA
mA
mA
V
UNIT
C
C
A
A