ML4876
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
CC
) ............................................... 75mA
Output Current, Source or Sink ............................. 250mA
Voltage on HVDD ..................................................... 20V
Current into L RTD ............................................... ±10mA
Transient Voltage on B ON .......................................... 9V
Voltage on Any Other Pin ............... –0.3V to VDD +0.3V
Junction Temperature .............................................. 150°C
Storage Temperature Range ..................... –65°C to 150°C
Lead Temperature (Soldering 10 sec.) ..................... 260°C
Thermal Resistance (q
JA
) Plastic SSOP ............... 100°C/W
OPERATING CONDITIONS
Temperature Range
ML4876C ................................................... 0°C to 70°C
ML4876E ............................................... –20°C to 70°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VDD = 5V ±5%, C
T
= 47pF, T
A
= Operating Temperature Range (Note 1)
SYMBOL
CURRENT REGULATOR
Error Amplifier
Open Loop Gain
Bias Point
Output High
Output Low
Bandwidth (–3dB)
Input Voltage Range
Input Bias Current
–0.3
Closed loop
I
LOAD
= 5µA
I
LOAD
= 25µA
60
0.18
2.8
70
0.2
3.0
0.4
1
0.2
50
VREF
100
0.7
0.22
dB
V
V
V
MHz
V
nA
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Current Limit Comparator
Current Threshold
Input Bias Current
Propagation Delay
V
LILIM
= 0.1V
(Note 2)
450
500
50
30
550
100
mV
nA
ns
Output Drivers
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
ONE SHOT Pulse Width
DELAY TIMER Delay Time
VDD = 5V, I
LOAD
= 12mA
I
LOAD
= 12mA
C
LOAD
= 100pF
VDD = 5V, I
LOAD
= 12mA
I
LOAD
= 50mA
C
LOAD
= 2400pF (Note 2)
100
20
4.625
4.625
4.8
0.2
20
4.8
0.2
45
150
35
0.375
80
200
55
0.375
50
V
V
ns
V
V
ns
ns
ns
FLYBACK REGULATOR
Error Amplifier
Open Loop Gain
Offset Voltage
Output High
Output Low
I
LOAD
= 5µA
I
LOAD
= 25µA
60
–15
2.8
3.0
0.4
0.7
70
15
dB
mV
V
V
3
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
