bd9526amuv ROHM Co. Ltd., bd9526amuv Datasheet - Page 2

• Manufacturer Part Number: bd9526amuv
• Description: Step Down Dc/dc Converter Controller For Laptop Pc
• Manufacturer: ROHM Co. Ltd.

○Electrical characteristics
EXTVCC Input Threshold Voltage
EXTVCC Input Delay Time
Switch Resistance
SCP Threshold Voltage
Delay Time
MCTL terminal voltage 1
MCTL terminal voltage 2
MCTL terminal voltage 3
MCTL float level
INTVCC output Voltage
INTVCC Maximum Current
INTVCC Line regulation
INTVCC Load regulation
REG1 Output Voltage
REG1Maximum Current
REG1Line regulation
REG1Load regulation
REG2 Output Voltage
REG2Maximum Current
REG2Line regulation
REG2Load regulation
ON Time 1
ON Time 2
Maximum On Time
Minimum Off Time
HG higher side ON resistor
HG lower side ON resistor
LG higher side ON resistor
LG lower side ON resistor
Maximum offset voltage
Is+1 bias current
Is+2 bias current
INTVCC Threshold Voltage
REG2 Threshold Voltage
Hysteresis voltage
Output Discharge Resistance 2
Soft Start Time
VIN1 Bias Current
VIN2 Bias Current 1
VIN2 Bias Current 2
VIN1 Shutdown Current
VIN2 Shutdown Current
CTL Low Voltage
CTL High Voltage
CTL Bias Current
EN Low Voltage
EN High Voltage
EN Bias Current
Feed back voltage 1
FB1 Bias Current
Output Discharge Resistance 1
Feed back voltage 2
FB2 Bias Current
REF1, REF2 Bias Current
[3.3V Linear Regulator]
[Under voltage lock out block for DC/DC]
[5V Linear Regulator]
[5V Switch Block]
[Error amplifier block]
[FET Driver block]
[Short circuit protection block]
[Current limit protection block]
[Soft Start block]
[SLLM mode control block]
[H
3
REG block]
Parameter
(unless otherwise noted,
IREF1, IREF2
REG1_UVLO
REG2_UVLO
RDISOUT1
RDISOUT2
Vcc_UVLO
dV_UVLO
VINTVCC
TOFFMIN
Reg.LINT
TONMAX
IINTVCC
dVSMAX
Reg.lINT
HGHON
Symbol
HGLON
LGHON
VCONT
VREG1
VREG2
LGLON
VQLLM
VMCTL
VCTLH
Reg.L1
Reg.L2
VSLLM
IIN2_1
IIN2_2
VCTLL
IREG1
IREG2
ISHD1
ISHD2
VENH
Reg.l1
Reg.l2
VENL
TON1
TON2
VSCP
TSCP
VFB1
VFB2
IISP1
IISP2
TVcc
RVcc
ICTL
IFB1
IFB2
TSS
IIN1
IEN
Ta=25℃ VIN1=VIN2=12V, CTL=5V, EN1=EN2=5V, REF1=2.5V, REF2=1.65V, RFS1=RFS2=51kΩ)
REF1×2 -25m
REF2×2 -25m
REF×2×0.66
0.860
0.570
Min.
4.90
3.27
3.27
2.45
-0.3
-0.3
-0.3
200
100
100
2.3
2.3
4.2
4.0
3.5
0.5
0.5
1.5
4.5
1.5
50
43
-1
2
5
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
REV. B
REF×2×0.7
REF1×2
REF2×2
0.960
0.670
Limit
Typ.
5.00
3.30
3.30
2.65
130
100
100
4.4
1.0
4.2
0.2
3.0
2.0
2.0
0.5
2.5
2.5
1.0
20
25
16
50
0
0
1
1
4
1
1
7
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
REF1×2 +25m
REF2×2 +25m
REF×2×0.74
INTVCC+0.3
1.060
0.770
Max.
5.10
3.33
3.33
2.85
200
150
180
200
0.8
0.8
5.5
4.6
2.0
4.4
0.4
6.0
4.0
4.0
1.0
2.0
0.3
3.0
3.0
40
10
10
25
50
33
33
20
30
50
32
14
57
10
10
3
3
8
3
3
1
2
-
-
-
Unit
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
mA
mV
mV
mA
mV
mV
mA
mV
mV
mV
kΩ
kΩ
μs
μs
μs
μs
mV
ms
ms
ms
Ω
Ω
Ω
Ω
Ω
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
CTL=5V
CTL=5V, EN1=EN2=0V
CTL=5V,
EN1=EN2=0V,EXTVCC=5V
CTL=0V
CTL=0V
VCTL=5V
VEN=3V
IINTVCC1=1mA
IREG2=0mA
VIN=7.5 to 25V
IINTVCC=0 to 30mA
IREG1=1mA
VIN=7.5 to 25V
IREG1=0 to 50mA
IREG2=1mA
VIN=7.5 to 25V
IREG2=0 to 100mA
EXTVCC: Sweep up
INTVCC: Sweep up
REG2: Sweep up
INTVCC, REG2: Sweep down
FB1=5V
FB2=3.3V
REF=2.5V
REF=1.65V
Is+1=2V
Is+2=2V
Continuous mode
QL
(Maximum LG off time : 40usec)
SL
(Maximum LG off time : ∞)
2
2
M mode
M mode
Condition
2/4