BD9775FV-E2 Rohm Semiconductor, BD9775FV-E2 Datasheet - Page 19

• Manufacturer Part Number: BD9775FV-E2
• Description: IC REG SW STEP DOWN HE 28-SSOP
• Manufacturer: Rohm Semiconductor
• Type: Step-Down (Buck)r

Specifications of BD9775FV-E2

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Current - Output: 400mA
• Frequency - Switching: 100kHz
• Voltage - Input: 6 ~ 30 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Power - Output: 640mW
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: BD9775FV-E2TR

【PWM Comparator】
Threshold Voltage at 0%
Threshold Voltage
DTC Input Bias Current
【FET Driver】
Sink Current
Source Current
ON Resistance
Rise Time
Fall Time
Driver’s Duty Cycle of
Synchronous
Rectification
SYNC Terminal Voltage
【Over Current Protection (OCP)】
VS Threshold Voltage
VS Input Current
CL Input Current
【Stand-by】
Threshold Voltage
CL Input Current
【Short Circuit Protection （SCP） 】
Timer Start Voltage
Threshold Voltage
Stand-by Voltage
Source current
【Under Voltage Lock Out （UVLO） 】
Threshold Voltage
Hysteresis
Voltage Range
at 100%
Parameter
Symbol
Isource
Vth100
DVuvlo
ΔDuty
Vthscp
Vstscp
Isoscp
Vsync
RonN
Vtime
RonP
Vuvlo
IVSH
IVSL
Vth0
Isink
Vths
Vctl
Idtc
Ictl
Tr
Icl
Tf
VCC-0.24
0.88
1.88
-510
1.45
Min.
1.92
0.05
7.0
0.7
-4.0
20
42
1.0
0.6
5.6
－
－
-1
-1
-1
－
9
6
VCC-0.21
Limits
0.98
1.98
-320
1.55
11.0
100
Typ.
2.00
1.4
-2.5
36
20
45
10
－
－
－
1.5
0.7
5.7
0.1
15
10
19/29
VCC-0.18
Max.
1.08
2.08
-180
17.8
1.65
2.08
0.15
100
-1.5
2.2
2.0
0.8
5.8
58
48
－
－
11
30
1
1
1
nsec
nsec
Unit
μA
μA
μA
μA
μA
μA
mA
mA
mV
Ω
Ω
%
V
V
V
V
V
V
V
V
V
SCP Voltage
FB Voltage
FB Voltage
VDS=0.4V
VDS=0.4V
OUT1,2H,2L : L
OUT1,2H,2L : H
Switching with COUT=5000pF
Switching with COUT=5000pF
RSYNC=30KΩ,
50% of main driver’s duty cycle
Rsync=30KΩ,FB=1.5V
RCL=21kΩ, the output tern off after
detected 8 cycle
VS1,VS2=PBU
VS1,VS2=0V
CTL1,CTL2=3V
INV Voltage
SCP Voltage
SCP=1.0V
Vcc sweep down
Condition