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ADM1270ARQZ

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
ADM1270 Data Sheet
Rev. A | Page 12 of 21
0.95
1.00
1.05
1.10
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
UV THRESHOLD VOLTAGE (V)
HYSTERESIS (V)
0
0.01
0.02
0.03
0.04
0.05
0.06
UV RISE
UV FALL
HYSTERESIS
12259-022
Figure 22. UV Threshold Voltage vs. Temperature
0.90
0.95
1.00
1.05
–60 –40 –20
0 20
40
60
80
100
120
140
TEMPER
ATURE (°C)
OV THRESHOLD VOLTAGE (V)
HYSTERESIS (V)
0
0.01
0.02
0.03
OV RISE
OV FALL
HYSTERESIS
12259-023
Figure 23. OV Threshold vs. Temperature
0.980
0.985
0.990
0.995
1.000
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4V POWER-GOOD RISE
25V POWER-GOOD RISE
50V POWER-GOOD RISE
POWER-GOOD RISING THRESHOLD (V)
12259-024
Figure 24. Power-Good Rising Threshold vs. Temperature,
Different Input Voltages
0.950
0.955
0.960
0.965
0.970
–60 –40 –20
0 20
40
60
80
100
120
140
TEMPER
ATURE (°C)
POWER-GOOD FALLING THRESHOLD (V)
4V POWER-GOOD
F
AL
L
25V POWER-GOOD
F
AL
L
50V POWER-GOOD
F
AL
L
12259-025
Figure 25. Power-Good Falling Threshold vs. Temperature,
Different Input Voltages
0.100
0.102
0.104
0.106
0.108
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
SEVERE OC THRESHOLD (V)
4V OV
25V OC
50V OC
12259-026
Figure 26. Severe Overcurrent (OC) Threshold vs. Temperature,
Different Input Voltages
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
FLB (V)
V
SENSE
(V)
–40°C
–5°C
–25°C
–85°C
–125°C
12259-027
Figure 27. Sense Voltage (V
SENSE
) vs. FLB, Different Temperatures
Data Sheet ADM1270
Rev. A | Page 13 of 21
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0 0.5 1.0 1.5 2.0
2.5
3.0
3.5
V
ISET
(V)
V
SENSE
(V)
–40°C
–5°C
+25°C
+85°C
+125°C
12259-028
Figure 28. Sense Voltage (V
SENSE
) vs. ISET Voltage (V
ISET
),
Different Temperatures
0
5
10
15
20
25
30
35
40
45
50
–60
–40
–20
0
20
40
60
80
100
120 140
TEMPERATURE (°C)
OC INPUT CURRENT (µA)
10mV
20mV
30mV
40mV
50mV
60mV
12259-029
Figure 29. OC Input Current vs. Temperature, Different Sense Voltages (V
SENSE
)
0
5
10
15
20
25
30
35
40
45
50
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
OC INPUT CURRENT (µA)
–40°C
–5°C
+25°C
+85°C
+125°C
V
SENSE
(V)
12259-030
Figure 30. OC Input Current vs. Sense Voltage (V
SENSE
), Different Temperatures
1.98
2.00
1.99
2.01
2.02
–60 –40 –20
0
20 40 60
80
100
120
140
TEMPER
ATURE (°C)
OC TIMER THRESHOLD (V)
4V
50V
12259-031
Figure 31. OC TIMER Threshold vs. Temperature, Different Input Voltages
1.97
1.99
2.01
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
OC TIMER_OFF THRESHOLD (V)
4V
50V
12259-032
1.98
2.00
Figure 32. OC TIMER_OFF Threshold vs. Temperature,
Different Input Voltages
ADM1270 Data Sheet
Rev. A | Page 14 of 21
TYPICAL APPLICATION CIRCUIT
GND
R3
R5
1V
1V
GATE DRIVE/
LOGIC
V
CB
TIMER
ON
TIMEOUT
I
OUT
CURRENT
LIMIT
TIMER
VCC/SENSE+ SENSE–
R
SENSE
GATE
TIMER
UV
OV
RPFG
FLB
R8
R7
R9
LDO
VCAP
REF
SELECT
ISET
FAULT
FB_PG
ENABLE
TIMER_OFF
PWRGD
+
+
+
–
–
+
–
–
CURRENT-
LIMIT
CONTROL
VOUT
LOAD
VIN
Q2
R1
R2
Q1
R4
C
TIMER
C
TIMER_OFF
12259-033
Figure 33. Typical Application Circuit
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ADM1270ARQZ

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Buy ADM1270ARQZ
Manufacturer:
Analog Devices Inc.
Description:
Hot Swap Voltage Controllers High Voltage Current Limit
Lifecycle:
New from this manufacturer.
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