
ML4812
4
REV. 1.0 10/10/2000
ELECTRICAL CHARACTERISTICS
(Continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
GAIN MODULATOR
I
SINE
Input Voltage
Output Current (GM OUT)
I
SINE
= 500
μ
A
I
SINE
= 500
μ
A, EA– = V
REF
–20mV
I
SINE
= 500
μ
A, EA– = V
REF
+ 20mV
I
SINE
= 1mA, EA– = V
REF
– 20mV
I
SINE
= 500
μ
A, EA– = V
REF
– 20mV,
I
RAMP COMP
= 50
μ
A
0.4
0.7
0.9
V
430
470
510
μ
A
μ
A
μ
A
μ
A
3
10
860
940
1020
455
Bandwidth
200
kHz
PSRR
12V < V
CC
< 25V
70
dB
OVP COMPARATOR
Input Offset Voltage
Output Off
–25
+5
mV
Hysteresis
Output On
95
105
115
mV
μ
A
Input Bias Current
–0.3
–3
Propagation Delay
150
ns
PWM COMPARATOR: I
SENSE
Input Offset Voltage
±
15
±
1
mV
Input Offset Current
μ
A
Input Common Mode Range
–0.2
5.5
V
μ
A
Input Bias Current
–2
–10
Propagation Delay
150
ns
I
LIMIT
Trip Point
OUTPUT
V
GM OUT
= 5.5V
4.8
5
5.2
V
Output Voltage Low
I
OUT
= –20mA
I
OUT
= –200mA
I
OUT
= 20mA
I
OUT
= 200mA
I
OUT
= –5mA, V
CC
= 8V
C
L
= 1000pF
V
IH
V
IL
I
IL
, V
SHDN
= 0V
I
IH
, V
SHDN
= 5V
0.1
0.4
V
1.6
2.2
V
Output Voltage High
13
13.5
V
12
13.4
V
Output Voltage Low in UVLO
0.1
0.8
V
Output Rise/Fall Time
50
ns
Shutdown
2.0
V
0.8
V
–1.5
mA
10
μ
A
UNDER-VOLTAGE LOCKOUT
Startup Threshold
15
16
17
V
Shutdown Threshold
9
10
11
V
V
REF
Good Threshold
SUPPLY
4.4
V
Supply Current
Start-Up, V
CC
= 14V, T
J
= 25
°
C
Operating, T
J
= 25
°
C
I
CC
= 30mA
0.8
1.2
mA
20
25
mA
Internal Shunt Zener Voltage
25
30
34
V
Note 1:
Note 2:
Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
V
CC
is raised above the Startup Threshold first to activate the IC, then returned to 15V.