Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX5081 User Manual
Page 4
MAX5080/MAX5081
1A, 40V, MAXPower Step-Down
DC-DC Converters
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
ON/OFF
= 12V, V
REG
= V
DVREG
, V
SYNC
= PGND = SGND, 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
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Temperature rising
+160
°C
Thermal Shutdown Hysteresis
20
°C
Note 1: 100% production tested at T
A
= +25°C and T
A
= T
J
= +125°C. Limits at -40°C are guaranteed by design.
Typical Operating Characteristics
(V
IN
= 12V, see Figure 5 (MAX5080) and Figure 6 (MAX5081), T
A
= +25°C, unless otherwise noted.)
UNDERVOLTAGE LOCKOUT HYSTERESIS
vs. TEMPERATURE (MAX5080)
MAX5080 toc01
TEMPERATURE (
°C)
UNDERVOLTAGE LOCKOUT HYSTERESIS (V)
110
85
35
60
10
-15
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40
135
UNDERVOLTAGE LOCKOUT HYSTERESIS
vs. TEMPERATURE (MAX5081)
MAX5080 toc02
TEMPERATURE (
°C)
UNDERVOLTAGE LOCKOUT HYSTERESIS (V)
110
85
35
60
10
-15
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40
135
ON/OFF THRESHOLD HYSTERESIS
vs. TEMPERATURE
MAX5080 toc03
TEMPERATURE (
°C )
ON/OFF THRESHOLD HYSTERESIS (V)
110
85
60
35
10
-15
0.05
0.10
0.15
0.20
0
-40
135
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE (MAX5080)
MAX5080 toc04
INPUT VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (
µ
A)
35
30
20
25
10
15
5
25
50
75
100
125
150
175
200
225
250
0
0
40
T
A
= +135
°C
T
A
= +25
°C
T
A
= +85
°C
T
A
= -40
°C
V
ON/OFF
= 0V
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE (MAX5081)
MAX5080 toc05
INPUT VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (
µ
A)
35
30
20
25
10
15
5
25
50
75
100
125
150
175
200
225
250
275
300
0
0
40
T
A
= +135
°C
T
A
= +25
°C
T
A
= +85
°C
T
A
= -40
°C
V
ON/OFF
= 0V
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE (MAX5080)
MAX5080 toc06
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
35
30
5
10
15
20
25
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
0
40
T
A
= +135
°C
T
A
= +25
°C
T
A
= +85
°C
T
A
= -40
°C