Rainbow Electronics MAX5098A - Manual (Page 9)

MAX5098A
Dual, 2.2MHz, Automotive Buck or Boost
Converter with 80V Load-Dump Protection
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BYPASS VOLTAGE
vs. TEMPERATURE
MAX5098A toc22
TEMPERATURE ( °C)
BYPASS VOLTAGE (V)
100 65 -5 30
1.994
1.996
1.998
2.000
2.002
2.006
2.004
2.008
2.010
1.990
1.992
-40 135
V L = V+ = V IN_HIGH = 5.5V
BYPASS VOLTAGE
vs. BYPASS CURRENT
MAX5098A toc23
BYPASS CURRENT ( μA)
BYPASS VOLTAGE (V)
80 60 20 40
1.992
1.994
1.998
1.996
2.000
1.990
0 100 70 50 10 30 90
T A = +25 °C
T A = +135 °C T A = +125 °C
T A = +85 °C
T A = -40 °C
SOURCE1, SOURCE1 INDICATOR CURRENT,
SOURCE2, SOURCE2 INDICATOR CURRENT
MAX5098A toc24
1 μs/div
I SOURCE1
500mA/div
NO LOAD
SOURCE1
20V/div
NO LOAD
SOURCE2
20V/div
I SOURCE2
1A/div
0V
0A
0A
0V
Typical Operating Characteristics (continued)
(See the Typical Application Circuit, unless otherwise noted. V+ = V IN_HIGH = 14V, unless otherwise noted. V+ = V IN_HIGH means
that N1 is shorted externally.)
V+ SWITCHING SUPPLY CURRENT
vs. SWITCHING FREQUENCY
MAX5098A toc25
SWITCHING FREQUENCY (kHz)
V+ SWITCHING SUPPLY CURRENT (mA)
1820 1440 1060 680
10
20
30
40
50
0
300 2200
T A = +25 °C
T A = +135 °C
T A = +125 °C
T A = +85 °C
T A = -40 °C
V+ = IN_HIGH = ON/OFF
V+ STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX5098A toc26
TEMPERATURE ( °C)
V+ STANDBY SUPPLY CURRENT (mA)
100 50 0
1
2
3
4
0
-50 150
f SW = 1.85MHz
f SW = 300kHz
V+ = IN_HIGH = ON/OFF
EN1 = EN2 = SGND
IN_HIGH SHUTDOWN CURRENT
vs. TEMPERATURE
MAX5098A toc27
TEMPERATURE ( °C)
IN_HIGH SHUTDOWN CURRENT (
μ
A)
100 50 0
4
8
12
16
20
0
-50 150
IN_HIGH = 8V
IN_HIGH = 14V
IN_HIGH = 16V
ON/OFF = SGND
IN_HIGH STANDBY CURRENT
vs. TEMPERATURE
MAX5098A toc28
TEMPERATURE ( °C)
IN_HIGH STANDBY CURRENT (
μ
A)
100 50 0
85
95
105
115
125
135
145
75
-50 150
IN_HIGH = 8V
IN_HIGH = 14V
IN_HIGH = 16V
ON/OFF = IN_HIGH
EN1 = EN2 = SGND