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RT2910A データシート(PDF) 7 Page - Richtek Technology Corporation

部品番号 RT2910A
部品情報  High Efficiency Inverting PWM Converter with Surge Stopper
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メーカー  RICHTEK [Richtek Technology Corporation]
ホームページ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT2910A データシート(HTML) 7 Page - Richtek Technology Corporation

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RT2910A
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS2910A-00
August
2017
www.richtek.com
7
Electrical Characteristics
(VIN = VENHV = 5V, RRT = 300k, CREF = 0.1F, VHV = 12V, TJ = 40°C to 125°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Hot Swap Regulator with Over-Voltage Protection
VHV Supply Current
IVHV
VENHV = 0V
--
7
25
A
VENHV = 5V (VGATE VOUT)
--
2.3
5
mA
GATE Output High Voltage
(Note 5)
V
GATE
8V < VHV < 80V (VGATE VOUT)
10
12
16
V
GATE Pull-Up Current
IGATE_UP
VGATE = 12V
15
40
60
A
VGATE = VHV = 48V
30
70
120
GATE Pull-Down Current
IGATE_DN
Over voltage, VFB = 1.4V,
VGATE = 12V
45
80
150
mA
Over current, VHV  VSNS =
120mV, VGATE = 12V
1
3
4
Shutdown mode, VENHV = 0V,
VGATE = 12V
45
80
150
Output
FB Voltage
VFB
VGATE = 12V, VOUT = 12V
1.18
1.25
1.32
V
FB Input Current
IFB
VFB = 1.25V
--
0.3
1
A
Over Current Threshold
V
SNS
VHV  VSNS
VHV = 12V
40
50
58
mV
VHV = 48V
38
48
56
SNS Input Current
ISNS
VSNS = VHV = 12V to 48V
--
120
--
A
OUT Pin Input Current
IOUT
VSNS = VHV = 12V
--
200
500
A
VOUT = VHV = 12V, VENHV = 0V
--
0.5
2
mA
ENHV Input Voltage
VENHV_H
VHV = 12V to 48V
3
--
--
V
VENHV_L
VHV = 12V to 48V
--
--
0.5
ENHV Input Current
IENHV
VENHV = 3V
--
0.4
--
A
TMR Current
ITMR_SO
Sourcing, VTMR = 1V, VFB = 1.5V
or
V
SNS = 60mV
20
25
30
A
ITMR_SI
Sinking, VTMR = 1V, VFB = 1V or
V
SNS = 0V
2.5
3.5
5
A
Inverting PWM Converter
VIN Supply Voltage Range
VIN
4
--
7
V
VIN Supply Current
IVIN
VNFB = 0.6V, VIN > VUVLO,
VCOMP = 0V
--
0.75
1.5
mA
UVLO Threshold
VUVLO
VIN rising
--
3.6
3.9
V
VIN falling
3.2
3.5
--
NFB Threshold
VNFB
No load
0.585
0.6
0.615
V
NFB Input Current
INFB
VNFB = 0.6V
--
0.1
--
A


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