zxlb1600 Zetex Semiconductors plc., zxlb1600 Datasheet - Page 2

• Manufacturer Part Number: zxlb1600
• Description: Lcd Bias Boost Converter
• Manufacturer: Zetex Semiconductors plc.

ABSOLUTE MAXIMUM RATINGS
(Voltages to GND unless otherwise stated)
Output voltage
Input voltage
Switch output current
Power dissipation
Operating temperature
Storage temperature
Junction temperature
ELECTRICAL CHARACTERISTICS
Test conditions unless otherwise stated: V
Note:
1)
2)
3)
4)
ZXLB1600
Symbol
General
V
I
Isolating switch
R
I
V
LX Switch
I
R
I
V
Controller output
V
I
f
T
T
IN
ISO
LX
LX(leak)
OUT
LX
ON
OFF
IN
ISO
SW(max)
LX
LX
OUT
V
V
S E M I C O N D U C T O R S
LNR
LDR
Minimum supply voltage should be maintained above 2V for operation at minimum temperature.
Shutdown current includes the operating current for the low battery comparator, which remains active in shutdown mode.
This is the dc value. The dynamic value may exceed 350mA during normal operation, due to switching delays, coil inductance and supply
voltage.
Efficiency is dependent upon the choice of external components, input/output voltages and load current.(see typical operating curves).
Parameter
Input voltage
Supply current Shutdown
Quiescent
‘On’ resistance
Leakage current
Maximum voltage on SW pin
during normal operation
Switch peak current limit
‘On’ resistance
Switch leakage current
Operating voltage on LX pin
Output voltage range
Output current
Line regulation
Load regulation
Operating frequency
Output ‘ON’ time
Output ‘OFF’ time
Efficiency
(4)
(1)
(3)
(2)
Conditions
V
V
switching
V
V
Lx = 22 H, V
I
V
< 5mA
LX output low
LX output off
Lx = 22 H, V
OUT
30V
7V
500mA
800mW
0 to 70 C
-55 to 125 C
150 C
EN
EN
EN
EN
OUT
IN
= 0V
= V
= V
= 0V
= 1mA, 2V < V
= 3.0V, T
= 28V, 100 A < I
2
IN
IN
, I
OUT
OUT
OUT
= 0V, Not
AMB
= 28V
= 20V
IN
= 25°C
<5.5V
OUT
0.15
Min
-0.5
V
1.6
0.9
5
IN
ISSUE 3 - SEPTEMBER 2003
0.15
Typ
3.5
0.7
0.5
0.1
30
10
80
V
IN
Max
0.35
500
5.5
75
30
28
10
5
2
1
2
1
+0.5 V
Units
V
A
V
V
mA
%/V
%/mA
kHz
µs
%
A
A
A
A
s