BD9763FVM Datasheet, PDF (2/12 Pages) Rohm – Single-output Step-up,High-efficiency Switching Regulator (Controller Type)

BD9763FVM
Technical Note
●Electrical characteristics (Unless otherwise specified, Ta=25℃, Vcc=7.0V)
Parameter
Symbol
Limits
Min Typ Max
【Oscillator】
Oscillating frequency
fosc
522 600 678
Frequency tolerance
FDV
-5
0
5
Swing voltage
Vpptr
－
0.5
－
【Stand-by, Soft start】
CTL/SS pin source current
ISS
-1.90 -1.00 -0.55
CTL/SS pin clamp voltage
VSS
2.2
2.4
2.6
CTL threshold voltage
VCTLTH 1.2
1.3
1.4
【PWM comparator】
0% threshold voltage
D0
1.5
1.6
1.7
Maximum duty cycle
DMAX
80
90
99.5
【Error amplifier】
Threshold voltage
VIN
0.98 1.00 1.02
Band width
BW
－
3.0
－
Voltage gain
Av
－
70
－
Input bias current
IIB
-150 -70
－
Maximum output voltage
VCH
2.3
2.4
2.6
Minimum output current
VCL
－
0.03 0.20
Output source current
IOI
-3.1 -1.6 -1.0
Output sink current
IOO
12
50
125
【Reference voltage】
Output voltage
VREF 2.475 2.500 2.525
Load regulation
△VREFlo -
-
10
Output short current
IVREF
-45
-16
-1
【Whole device】
Stand-by current
ICCS
420 610 960
Circuit current
ICCA
3.4
5.0
7.8
【Output】
ON resistance
RON
0.9
2.5
8.0
Output rise/fall time
Tr/Tf
－
20
－
Output source current
IOUTSO － -0.80 －
Output sink current
【Under voltage lock out】
Threshold voltage
Hysteresis width
IOUTSI
－
0.85
－
VUT
3.7
3.8
3.9
VUThy 0.05 0.10 0.15
Unit
kHz
%
V
µA
V
V
V
%
V
MHz
dB
nA
V
V
mA
mA
V
mV
mA
µA
mA
Ω
nsec
A
A
V
V
Condition
R_RT=24kΩ
Vcc=4 to 9V
V_CTL/SS=1.5V
AV=0dB
V_FB=1.0V
V_FB=1.0V
I_VREF=0mA
I_VREF=0 to -1mA
No load
Cout=1000pF
Ta=-40 to 85℃,VCC=4 to 9V,
OUT=0V，rush current
Ta=-40 to 85℃,VCC=4 to 9V,
OUT=VCC，rush current
Vcc sweep down
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2009.05 - Rev.A