lnbh23qtr STMicroelectronics, lnbh23qtr Datasheet - Page 19

• Manufacturer Part Number: lnbh23qtr
• Description: Lnbs Supply And Control Ic With Step-up And I??c Interface
• Manufacturer: STMicroelectronics

8
Table 8.
Eff
Symbol
T
D
F
A
F
13/18
T
I
R
F
T
TONE
TONE
t
EXTM
MAX
I
TONE
V
V
V
DC/DC
OFF
V
r
SC
SW
ON
, t
I
- T
I
O
O
O
I
f
F
Supply voltage
Supply current
Output voltage
Line regulation
Load regulation
13/18V Rise and Fall
transition time by V
Output current limiting
Output short circuit current
Dynamic overload protection
OFF time
Dynamic overload protection
ON time
Tone frequency
Tone amplitude
Tone duty cycle
Tone rise or fall time
EXTM frequency
DC/DC converter efficiency
DC/DC converter switching
frequency
Electrical characteristics (Refer to the typical application circuit, T
VSEL=LLC=TEN=PCL=ITEST=TTX=AUX=0, R
50 mA, unless otherwise stated. Typical values are referred to T
voltage. See software description section for I²C access to the system register)
Electrical characteristics
Parameter
CTRL
pin
I
I
EN=TEN=TTX=1, I
EN=0
AUX=1; I
V
V
V
V
V
HIGH and vice versa, I
450mA, C
R
R
V
PCL=0, Output shorted
PCL=0, Output shorted
DSQIN=HIGH or TEN=1, TTX=1
DSQIN=HIGH or TEN=1, TTX=1
I
C
DSQIN=HIGH or TEN=1, TTX=1
DSQIN=HIGH or TEN=1, TTX=1
V
I
O
O
O
O
SEL
SEL
I
SEL
SEL
SEL
EXTM-H
SEL
SEL
O
=750mA, VSEL=LLC=1
=0
=8 to 15V
=750mA
from 0 to750mA
from 0 to 750nF
=1 I
=0 I
=0 or 1, I
=LLC=1, V
=0/1, AUX=0/1
=11k
= 22k
O
O
O
=3.3V, V
Ω
=750mA
=750mA
O
Test conditions
=50mA
Ω
from 10 to 330nF
O
CTRL
from 50 to750mA
EXTM-L
O
=0
from LOW to
SEL
O
=0V,
from 6 to
LLC=0
LLC=1
LLC=0
LLC=1
VSEL=0
VSEL=1
= 11 kΩ , DSQIN = LOW, V
(1)
Min.
17.8
18.8
12.8
13.8
750
300
J
0.4
20
43
20
8
5
= 25 °C. V
J
T
= 0 to 85 °C, EN=1,
OFF
0.650
1000
Typ.
18.5
19.5
13.4
14.4
575
900
220
12
20
22
22
50
22
93
7
2
5
5
8
/10
O
= V
I
Max.
1000
= 12 V, I
19.2
20.2
200
600
0.9
15
15
40
14
15
40
60
24
24
57
15
oRX
pin
Unit
kHz
V
kHz
kHz
mA
mV
mV
mA
mA
O
ms
µs
µs
19/32
%
%
V
V
PP
=