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Push-Pull FET Driver with Integrated Oscillator
and Programmable Clock Output
ELECTRICAL CHARACTERISTICS (continued)
(V CC = +12V, SEL1 = V CC , SEL2 = DGND, R RT = 124k ? , NDRV1 = NDRV2 = open, T A = T J = -40°C to +125°C, unless otherwise
noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SEL_ INPUTS
Input Current
0V ≤ V SEL_ ≤ V CC
1
μA
Input High Voltage
V IH
3
2.5
V
Input Low Voltage
V IL
2
1.5
V
Note 1: The MAX5077 is 100% tested at T A = T J = +125°C. All limits over temperature are guaranteed by design.
Note 2: Use the following formula to calculate the MAX5077 oscillator frequency: f OSC = 10 12 / (32 x R RT ).
Note 3: The accuracy of the oscillator’s frequency is lower at frequencies greater than 1MHz.
Typical Operating Characteristics
(V CC = +12V, SEL1 = V CC , SEL2 = DGND, R RT = 124k ? , NDRV1 = NDRV2 = open, CLK = open.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
STATIC SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. C CLK
7
6
f OSC = 1.25MHz
170
160
T A = +125 ° C
1.50
1.45
R RT = 124k ?
150
1.40
5
140
T A = +25 ° C
1.35
4
f OSC = 500kHz
130
1.30
3
2
f OSC = 250kHz
f OSC = 100kHz
120
110
T A = -40 ° C
1.25
1.20
1.15
1
0
f OSC = 50kHz
100
90
80
1.10
1.05
1.00
4
5
6
7
8
9 10 11 12 13 14 15
4
5
6
7
8
9 10 11 12 13 14 15
0
20
40
60
80
100
1.20
SUPPLY VOLTAGE (V)
SUPPLY CURRENT
vs. TEMPERATURE
50
SUPPLY VOLTAGE (V)
CLK RISE TIME
vs. SUPPLY VOLTAGE
39.5
C CLK (pF)
CLK RISE TIME
vs. TEMPERATURE
1.18
1.16
1.14
f OSC = 250kHz
45
40
35
C CLK = 30pF
39.0
38.5
C CLK = 30pF
1.12
30
1.10
1.08
1.06
1.04
1.02
1.00
25
20
15
10
5
0
38.0
37.5
37.0
36.5
-50
-25
0
25
50
75
100
125
4
5
6
7
8
9 10 11 12 13 14 15
-50
-25
0
25
50
75
100
125
TEMPERATURE ( ° C)
SUPPLY VOLTAGE (V)
TEMPERATURE ( ° C)
_______________________________________________________________________________________
3
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