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BD9524MUV_10 Datasheet, PDF (3/21 Pages) Rohm – Main Power Supply IC for Note PC (Linear Regulator Integrated) | |||
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BD9524MUV
Technical Note
âElectrical characteristics - Continued
(unless otherwise noted, Ta=25â VIN=12V, CTL=5V, EN1=EN2=5V, REF1=2.5V, REF2=1.65V, FS1=FS2=0.582V)
Parameter
[H3RegTM block]
Symbol
Standard Value
Unit
MIN.
TYP.
MAX.
Conditions
On Time 1
TON1
0.810
0.960
1.110
μs REF=2.5V
On Time 2
TON2
0.520
0.670
0.820
μs REF=1.65V
Maximum On Time
TONMAX
3.5
7
14
μs
Minimum Off Time
TOFFMIN
-
0.2
0.4
μs
FS1, FS2 bias current
IFS
-10
0
10
μA
[FET driver block]
HG higher side ON resistor
HGHON
-
3.0
6.0
â¦
HG lower side ON resistor
HGLON
-
2.0
4.0
â¦
LG higher side ON resistor
LGHON
-
2.0
4.0
â¦
LG lower side ON resistor
LGLON
-
0.5
1.0
â¦
[Over Voltage Protection block]
Latch Type OVP Threshold voltage VLOVP
REFÃ2 REFÃ2 REFÃ2
Ã1.15 Ã1.175 Ã1.20
V
Latch Type OVP delay time
TLOVP
50
150
300
μs
[Short circuit protection block]
SCP Threshold voltage
VSCP
REFÃ2Ã REFÃ2 REFÃ2
0.66
Ã0.7 Ã0.74
V
Delay time
TSCP
0.5
1
2
ms
[Current limit protection block]
Maximum offset voltage
dVSMAX
50
65
80
mV
Is+1 bias current
IISP1
-
2.5
10
μA
Is+2 bias current
IISP2
-
2.5
10
μA
[Power good block]
Power good low threshold
Power good high threshold
VPGTHL
REFÃ2 REFÃ2 REFÃ2
Ã0.87 Ã0.90 Ã0.93
V
VPGTHH
REFÃ2 REFÃ2 REFÃ2
Ã1.07 Ã1.10 Ã1.13
V
Power good low voltage
VPGL
-
0.1
0.2
V IPGOOD=1mA
Power good leakage current
ILEAKPG
-2
0
2
μA VPGOOD=5V
[Soft Start block]
Charge current
ISS
1.8
2.5
3.2
μA
Standby voltage
VSS_STB
-
-
50
mV
[SLLM mode control block]
MCTL terminal voltage 1
MCTL terminal voltage 2
MCTL terminal voltage 3
VCONT
-0.3
VQLLM
1.5
VSLLM
4.5
-
0.3
V Continuous mode
-
3.0
V
QL2M mode
(Maximum LG off time : 50μs)
-
REG1+0.3
V
SL2M mode
(Maximum LG off time : â)
MCTL float level
VMCTL
1.5
-
3.0
V
âOutput condition table
Input
CTL
EN1
Low
Low
Low
Low
Low
High
Low
High
High
Low
High
Low
High
High
High
High
EN2
Low
High
Low
High
Low
High
Low
High
REG1(5V)
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Output
REG2(3.3V)
DC/DC1
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
ON
ON
ON
DC/DC2
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
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3/20
2010.03 - Rev.C
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