BD8160AEFV_15 Datasheet, PDF (2/21 Pages) Rohm – 12V Input Multi-channel System Power Supply IC

BD8166EFV
Technical Note
●Electrical characteristics (Unless otherwise specified, Ta = 25°C, VCC = 15 V, Ta = 25℃)
1. DC/DC Converter Block
Parameter
Symbol
Min.
Limit
Typ.
Unit
Max.
[Soft start block SS1 and SS2]
Conditions
SS source current
Iso
6
10
14
µA Vss = 1.0 V
SS sinking current
Isi
0.5
2
—
mA Vss = 1.0 V
Clamp voltage
Vcl
1.7
1.9
2.1
V
[Error amp block FB1 and FB2]
FB input bias current 1 and 2
IFB1, 2
—
0.4
1.5
µA VFB = 0.5 V
Feedback voltage 1 and 2
VFB1, 2
1.230
1.250
1.270
V Buffer
Voltage gain
AV
—
200
—
V/V
COMP sinking current
IoI
1
2
4
mA VFB = 1.5 V, COMP = 1.5 V
COMP source current
Ioo
-12
-6
[Switch output block SW1 and SW2]
-2
mA VFB = 1.0 V COMP = 1.0 V
On resistance on high side
Ron h
—
200
300
mΩ Io = 1A*
On resistance on low side
Ron l
—
2
3
Ω Io = 20 mA*
Off current
Ioff
—
0.2
—
mA
Current limit
Insw
2
—
—
A*
Maximum duty ratio
DMax
—
97
—
%
2. Positive/Negative Charge Pump Block
Parameter
Symbol
Min.
[Error amp block FB3 and FB4]
Input bias current 3
IFB3
—
Input bias current 4
IFB4
—
Feedback voltage 3
VFB3
1.18
Feedback voltage 4
VFB4
1.18
[Delay start block SS3 and SS4]
SS source current
IDSO
3
SS sinking current
IDSI
0.2
Startup voltage
VST
0.52
[Switch block C1L, C2L, and C3]
N-channel on resistance
RON_NC
—
P-channel on resistance
RON_PC
—
Limit
Typ.
0.1
0.1
1.25
1.25
5
0.5
0.65
4
4
Unit
Max.
Conditions
0.5
µA
0.5
µA
1.32
V
1.32
V
7
—
0.78
µA VDLS = 0.5 V
mA VDLS = 0.5 V
V
8
Ω Io = 20 mA*
8
Ω Io = 20 mA*
○Design guarantee (No total shipment inspection is made.)
*This product is not designed for protection against radio active rays.
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2015.12 - Rev.C