5/25
© 2022 ROHM Co., Ltd.
65UG028E Rev.001
2022.7
User's Guide
BD7F105EFJ-EVK-001
1
2
3
4
8
7
6
5
GND
SDX/EN
L_COMP
REF
VIN
SW
N.C.
FB
EXP-PAD
(TOP VIEW)
Figure 4. Pin layout drawing
Outline of BD7F205EFJ-C
Features
◼
AEC-Q100 (Grade-1)
◼
No Need for Optocoupler and Third Winding of
Transformer
◼
Output voltage is set by two external resistors and
transformer winding ratio.
◼
Uses
proprietary
adaptive
ON-time
control
technology
◼
Highly efficient light load mode (PFM operation)
◼
Shutdown and Enable control
◼
Burst voltage design possible
◼
60 V Built-in-switching MOSFET
◼
Spread frequency spectrum
◼
Soft start function
◼
Load current compensation function
◼
Various protection functions
Undervoltage protection (UVLO)
Overcurrent protection (OCP)
Overheat protection (TSD)
REF pin open protection (REFOPEN)
Short-circuit protection (SCP)
Battery short-circuit protection (BSP)
Critical Characteristics
◼
Input voltage range :
VIN terminal
3.4 V to 42.0 V
SW pin
to 60 V
◼
Switching frequency :
363 kHz (Typ)
◼
Reference voltage accuracy:
±2.8 % (Typ)
◼
Shutdown current
0 μA (Typ)
◼
Operating temperature range
-40 °C to +125 °C
Package W (Typ) x D (Typ) x H (Max)
HTSOP-J8
4.9 mm x 6.0 mm x 1.0 mm
Applications
Insulated power supply for automotive use (E-Comp, Inverter
etc)
Insulated power supply for industrial equipment
Pin Layout
PIN ASSIGNMENT
No.
Pin name
Function
1
GND
GND terminal
2
SDX/EN
Shutdown/Enable control pin
3
L_COMP
Load current compensation value setting pin
4
REF
Output voltage setting pin
5
FB
Output voltage setting pin
6
N.C.
No Connect
7
SW
Switching output pin
8
VIN
Power input terminal
-
EXP-PAD
Rear heat dissipation pin
