RT2910A
Electrical Characteristics
(V
IN
= V
ENHV
= 5V, R
RT
= 300k, C
REF
= 0.1F, V
HV
= 12V, T
J
=
40°C
to 125°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
A
mA
V
A
Hot Swap Regulator with Over-Voltage Protection
VHV Supply Current
GATE Output High Voltage
(Note 5)
GATE Pull-Up Current
I
VHV
V
ENHV
= 0V
V
ENHV
= 5V (V
GATE
V
OUT
)
8V < V
HV
< 80V (V
GATE
V
OUT
)
V
GATE
= 12V
V
GATE
= V
HV
= 48V
Over voltage, V
FB
= 1.4V,
V
GATE
= 12V
GATE Pull-Down Current
I
GATE_DN
Over current, V
HV
V
SNS
=
120mV, V
GATE
= 12V
Shutdown mode, V
ENHV
= 0V,
V
GATE
= 12V
Output
FB Voltage
FB Input Current
Over Current Threshold
SNS Input Current
OUT Pin Input Current
V
FB
I
FB
V
GATE
= 12V, V
OUT
= 12V
V
FB
= 1.25V
V
HV
V
SNS
V
HV
= 12V
V
HV
= 48V
1.18
--
40
38
--
--
--
3
--
--
20
2.5
1.25
0.3
50
48
120
200
0.5
--
--
0.4
25
3.5
1.32
1
58
56
--
500
2
--
0.5
--
30
5
V
A
mV
A
A
mA
V
A
A
A
--
--
10
15
30
45
1
45
7
2.3
12
40
70
80
3
80
25
5
16
60
120
150
4
150
mA
V
GATE
I
GATE_UP
V
SNS
I
SNS
I
OUT
V
ENHV_H
V
ENHV_L
I
ENHV
I
TMR_SO
V
SNS
= V
HV
= 12V to 48V
V
SNS
= V
HV
= 12V
V
OUT
= V
HV
= 12V, V
ENHV
= 0V
V
HV
= 12V to 48V
V
HV
= 12V to 48V
V
ENHV
= 3V
Sourcing, V
TMR
= 1V, V
FB
= 1.5V
or
V
SNS
= 60mV
Sinking, V
TMR
= 1V, V
FB
= 1V or
V
SNS
= 0V
ENHV Input Voltage
ENHV Input Current
TMR Current
I
TMR_SI
Inverting PWM Converter
VIN Supply Voltage Range
VIN Supply Current
UVLO Threshold
NFB Threshold
NFB Input Current
V
IN
I
VIN
V
UVLO
V
NFB
I
NFB
4
V
NFB
= 0.6V, V
IN
> V
UVLO
,
V
COMP
= 0V
V
IN
rising
V
IN
falling
No load
V
NFB
= 0.6V
--
--
3.2
0.585
--
--
0.75
3.6
3.5
0.6
0.1
7
1.5
3.9
--
0.615
--
V
mA
V
V
A
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS2910A-00
August 2017
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
