BD9560MUV_09 Datasheet, PDF (3/22 Pages) Rohm – Switching Regulator Controller for Graphic Chip Cores

BD9560MUV
Technical Note
●ELECTRICAL CHARACTERISTICS
(Unless otherwise noted, Ta=25℃, VCC=5V,VIN=12V, VRON=5V,VDAC=1.2811V,SLLM=0V)
Parameter
Symbol
Standard value
Unit
MIN.
TYP.
MAX.
[Load slope setup block]
Offset voltage
VLS
TBD
0
TBD
mV
[Soft start block]
Delay time
TSS
-
65
-
usec
SS Delay charge current
ISS
1.5
2.0
2.5
µA
[Short circuit Protection]
Delay time
TSCP
-
60
-
usec
SCP Delay charge current
ISCP
1.5
2.0
2.5
µA
[SLLM block]
Continuous mode threshold
Vthcon
GND
-
SLLM threshold
VthSL²M
VCC-0.5
-
0.5
V
VCC
V
[Operating frequency]
Switching frequency
Fosc
-
300
-
kHz
[On time pulse width]
On time pulse width
Fosc
250
350
450
ns
TON adjustment voltage
VTON
0.2
-
2.0
V
TON bias current
ITON
-
0
1
µA
[OFF time width]
Min off time
MinOff
0.25
0.5
1.0
us
[Driver block]
HG high side ON resistor
RonHGH
-
1
2
Ohm
HG low side ON resistor
RonHGL
-
1
2
Ohm
LG high side ON resistor
RonLGH
-
1
2
Ohm
LG high side ON resistor
RonLGL
-
0.5
1
Ohm
[Power good block]
PWRGD Low threshold voltage
PGDLow
VDAC-0.4 VDAC-0.3 VDAC-0.2
V
PWRGD High threshold voltage PGDHigh VDAC+0.1 VDAC+0.2 VDAC+0.3
V
PWRGD Output voltage
VPWRGD
-
-
0.4
V
PWRGD Output leakage current PGDLeak
-
-
10
µA
PWRGD_C Delay charge current
IPD
1.5
2.0
2.5
µA
Conditions
Css=100pF
Cscp=100pF
TON=1V
TON=1V
TON=5V
IPRGD=4mA
PWRGD=3.6V
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2009.04 - Rev.B