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BD39012EFV-C PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD39012EFV-C
기능 System Regulator
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BD39012EFV-C 데이터시트, 핀배열, 회로
Datasheet
Management IC for Automotive Microcontroller
System Regulator for microcontroller for
automotive
BD39012EFV-C
General Description
BD39012EFV-C is a power management IC with
1 ch DC / DC convertor, 1 ch LDO, reset and watch dog
timer. It can supply the power supply to module from
battery directly. LDO has reset built-in and always
watches that it supplies stable power supply to module.
In addition, window watch dog timer is provided to detect
the abnormality of the microcomputer. BD39012EFV-C
enables a superior heat dissipation and a compact PCB
design by HTSSOP-B24 package.
Features
Synchronous rectifier step-down DC / DC converter
with built-in FET (Adjustable output)
Secondary LDO with built-in 5 V output FET
Monitoring function
Output over voltage / under voltage detection
(PG output), Reset function (LDO)
Window Watchdog Timer
Built-in protection function
Input under voltage protection (UVLO)
Thermal shut down (TSD)
Output over current protection (OCP)
Independent enable control
HTSSOP-B24 package
Key Specifications
Input voltage range:
4 V to 45 V
(Startup voltage needs to be above 4.5V.)
Output Voltage Accuracy
Step-down DC / DC Converter FB Voltage:
0.8 V ±2 %
Secondary LDO:
5.0 V ±2 %
Output Maximum Current
Step-down DC / DC Converter:
1.0 A
Secondary LDO:
0.4 A
Operating Frequency
Step-down DC / DC Converter:
200 k to 600 kHz (Typ)
Standby Current:
0 μA (Typ)
Operating Temperature Range: -40 °C to +125 °C
Package
HTSSOP-B24
W(Typ) x D(Typ) x H(Max)
7.80 mm x 7.60 mm x 1.00 mm
Applications
Microcontroller for Automotive
HTSSOP-B24
Typical Application Circuit
VO1
VCC
EN1
VREG
RT
PVCC
SW
VCC
or
VO1
FB
COMP
EN2
PGND
VS
VO2
PG1
RST2
PG2
CT ENWD CLK
RSTWD
RTW GND
OPEN
(Note1)
VO1
These specifications may be changed without a notice.
(Note 1) Please connect when the application is that the load current of VO1 output exceed in 500 mA.
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product has no designed protection against radioactive rays
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TSZ02201-0T2T0AM00180-1-2
11.Sep.2014 Rev.002




BD39012EFV-C pdf, 반도체, 판매, 대치품
BD39012EFV-C
Block Diagram
C VC C
V CC
V RE G
CVRE G
E N1
RRT
RT
V O1
C FB 1
R FB 1B
FB
R FB 1A
C OMP
R C O1
C C O1
V IN
or
V O1
E N2
P G1
P G2
V CC
V RE G
V RE G
OS C_DCDC
C L K(D C D C)
V CC
U VL O
V RE G
V CC
U VL O
TS D1
TS D1
CURRE NT
S ENS E
V RE G
OCP
OCP
V RE G
V CC
V RE F1A
V RE G
V RE G
S OFT
S TART
V RE G V RE G
ERR
S LOPE
S CP
U VL O
TS D1
OCP
V SOV P
E N1
S
V RE G V RE G
PWM
U VL O
TS D1
OCP
V SOV P
S CP
E N1
DRV
LOGI C
R
V RE G
V SOV P lach
Releas e aft er c ount
V SOV P
VS
V RE F2A
VS
V CC
V RE F1B
V RE G
O VD
V RE G
LVD
V RE G
OCP
SC P
V RE G
U VL O
E N1
V RE G
S CP l atc h
R eleas e
aft er count
P G1
S CP
V O2
V RE F2B
TS D2
V O2
V O2
O VD
V O2
P G2
V O2
V O2
LVD P OR
P G1
V O2
V O2
V O2
V O2
P G2
CCT
CT
E NWD
CLK
V O2
C L K(D C D C)
OS C_V OUT
R TW
R R TW 1
CLK(WDT)
WDT
P VCC
C u r re n t
S ens e
CPV CCA
L1
SW
CVO 1A
P GND
VS
C VS
V O2
CVO 2
V O2
RST 2
V O2
RST WD
GND
V O1
CVO 1B
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
4/39
TSZ02201-0T2T0AM00180-1-2
11.Sep.2014 Rev.002

4페이지










BD39012EFV-C 전자부품, 판매, 대치품
BD39012EFV-C
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply Voltage
VCC
-0.3 to 45 (Note 1)
V
Output Switch Pin Voltage
VSW
-0.3 to VCC
V
EN1 Pin Voltage
VEN1
-0.3 to 45
V
VREG Pin Voltage
VREG
-0.3 to 7
V
RT, FB, COMP Pin Voltage
VRT, VFB, VCOMP
-0.3 to 7
V
VS Pin Voltage
VS
-0.3 to 45*1
V
EN2 Pin Voltage
VEN2
-0.3 to 45
V
VO2 Pin Voltage
VO2
-0.3 to 7
V
PG1, PG2 Pin Voltage
VPG1, VPG2
-0.3 to VO2
V
RST2, RSTWD Pin Voltage
VRST2, VRSTWD
-0.3 to VO2
V
CT Pin Voltage
VCT
-0.3 to 7 (Note 2)
V
RTW Pin Voltage
VRTW
-0.3 to 7
V
ENWD Pin Voltage
VENWD
-0.3 to VO2
V
CLK Pin Voltage
VCLK
-0.3 to 7
V
Power Dissipation (Note 3)
Pd 4.0 W
Storage Temperature Range
Tstg
-55 to +150
°C
Junction Temperature
Tjmax
150 °C
(Note 1) Pd, should not be exceeded
(Note 2) VS+0.3 V, should not be exceeded.
(Note 3) Derating in done 32.0 mW / °C for operating above Ta 25 °C (Mount on 4-layer 70.0mm x 70.0mm x 1.6mm board)
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions (Ta = -40 °C to +125 °C)
Parameter
Symbol
Min
Typ
Max Unit
Operating Power Supply Voltage
VCC
4 (Note 4)
-
36 (Note 5)
V
VS Operating Voltage
VS 6.0 - 10 V
Switch Current
ISW 0 - 1 A
Oscillation Frequency
FOSC
200
-
600 kHz
WDT Oscillation Frequency
FOSCW
50
- 250 kHz
LDO Output Current
IVO2
0
-
0.4 (Note 5)
A
Operating Temperature Range
(Note 4) Initial startup is over 4.45 V
(Note 5) Pd, should not be exceeded
Topr -40 - 125 °C
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
7/39
TSZ02201-0T2T0AM00180-1-2
11.Sep.2014 Rev.002

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BD39012EFV-C

System Regulator

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