BD9775FV-E2 Rohm Semiconductor, BD9775FV-E2 Datasheet - Page 3

• 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

© 2011 ROHM Co., Ltd. All rights reserved.
BD9775FV
www.rohm.com
【PWM Comparator】
【FET Driver】
【Over Current Protection (OCP)】
【Stand-by】
【Short Circuit Protection (SCP)】
【Under Voltage Lock Out (UVLO)】
Threshold Voltage at 0%
Threshold Voltage at 100%
DTC Input Bias Current
Sink Current
Source Current
ON Resistance
Rise Time
Fall Time
Driver’s Duty Cycle of
Synchronous Rectification
SYNC Terminal Voltage
VS Threshold Voltage
VS Input Current
CL Input Current
Threshold Voltage
CL Input Current
Timer Start Voltage
Threshold Voltage
Stand-by Voltage
Source current
Threshold Voltage
Hysteresis Voltage Range
Parameter
Symbol
Isource
DVuvlo
Vth100
ΔDuty
Vthscp
Vstscp
Isoscp
Vsync
RonN
RonP
Vtime
Vuvlo
IVSH
IVSL
Vth0
Isink
Vths
Idtc
Vctl
Ictl
Tr
Icl
Tf
VCC-0.24 VCC-0.21 VCC-0.18
-510
1.92
0.05
Min.
0.88
1.88
1.45
-4.0
7.0
0.7
1.0
0.6
5.6
20
42
－
－
－
-1
-1
-1
9
6
Limits
3/14
Typ.
0.98
1.98
-320
1.55
2.00
11.0
-2.5
100
1.5
0.7
5.7
0.1
1.4
15
10
－
36
20
45
－
－
10
Max.
-180
1.08
2.08
17.8
1.65
2.08
0.15
100
-1.5
2.2
2.0
0.8
5.8
58
48
30
－
－
11
1
1
1
nsec
nsec
Unit
mA
mA
mV
µA
µA
µA
µA
µA
µA
Ω
Ω
%
V
V
V
V
V
V
V
V
V
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 turn off
after detected 8 cycle
VS1,VS2=PBU
VS1,VS2=0V
CTL1,CTL2=3V
INV Voltage
SCP Voltage
SCP Voltage
SCP=1.0V
Vcc sweep down
Condition
Technical Note
2011.05 - Rev.A