ml4877 Microsemi Corporation, ml4877 Datasheet - Page 3

• Manufacturer Part Number: ml4877
• Description: Desktop Backlight Lamp Driver
• Manufacturer: Microsemi Corporation

ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
Supply Current (I
Output Current, Source or Sink ............................. 250mA
Voltage on Pins LEA+, AZR, SS CAP, R
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VDD = 5V ±5%, T
CURRENT REGULATOR
ERROR AMPLIFIER
CURRENT LIMIT COMPARATOR
OUTPUT DRIVERS
ONE SHOT
SYMBOL
L ILIM, LEA-, LEA OUT, C
L GATE 1, ON/OFF, L GATE 2, PGND, GND,
B ON, B OFF ............................... –0.3V to VDD +0.3V
Open Loop Gain
Output High
Output Low
Bandwidth (-3dB)
Common Mode Voltage Range
Input Bias Current
Input Offset Voltage
Soft Start Charge Current
Soft Start Threshold (LEA OUT)
Current Threshold
Input Bias Current
Propagation Delay
Output High - B SYNC OUT, B OFF
Output Low - B SYNC OUT, B OFF
Rise & Fall time - B SYNC OUT, B OFF
Output High - B ON
Output Low - B ON
Fall Time - B ON
Pulse Width
CC
) ............................................... 75mA
PARAMETER
T
, B SYNC OUT, VDD,
T
, VREF,
A
= Operating Temperature Range, C
I
I
V
V
V
(Note 2)
VDD 5V, I
I
C
VDD 5V, I
I
C
LOAD
LOAD
LOAD
LOAD
SSCAP
SSCAP
ILIM
LOAD
LOAD
= 0.1V
= 5µA
= 25µA
12mA
50mA
= 2400pF (Note 2)
= 1V
= 1V
=100pF
CONDITIONS
LOAD
LOAD
Voltage on HVIDD .................................................... 20V
Current into L RTD ............................................... ±10mA
Junction Temperature .............................................. 150ºC
Storage Temperature Range ....................... -65ºC to 150ºC
Lead Temperature (Soldering 10 sec.) ..................... 260ºC
Thermal Resistance (
OPERATING CONDITIONS
Temperature Range
ML4877C ................................................... 0ºC to 70ºC
ML4877E...............................................–20ºC to 70ºC
= 12mA
= 12mA
T
= 47pF, R
JA
4.625
4.625
) .................................... 100ºC/W
MIN
550
450
100
2.8
-5
0
2
T
= 82k
TYP
750
500
150
150
3.0
0.4
4.8
0.2
4.8
0.2
60
50
50
20
45
1
0
(Note 1)
0.375
0.375
MAX
950
100
550
100
250
200
ML4877
0.7
1.0
2.5
70
50
80
5
UNITS
MHz
mV
mv
dB
nA
nA
nA
ns
ns
ns
ns
V
V
V
V
V
V
V
V
3