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PDF BD9639MWV Data sheet ( Hoja de datos )

Número de pieza BD9639MWV
Descripción Switching Regulator ICs
Fabricantes ROHM Semiconductor 
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Datasheet
Switching Regulator ICs
with Built-in FET (5V)
BD9639MWV
General Description
BD9639MWV is a 6-channel system switching
regulator IC with built-in FET and error amplifier phase
compensation for DSC/DVC applications. The built-in
regulators consisting of 2ch Buck-Boost, 2ch Buck and
2ch Boost circuits operate at high efficiency.
Features
6CH DC/DC converter
CH1 Boost
FET embedded Start-up ch,Motor
CH2 Buck
FET embedded Core
CH3 Buck-Boost FET embedded CMOS
CH4 Buck-Boost FET embedded Digital
CH5 Buck
FET embedded CMOS, Memory
CH6 Boost
FET embedded LED
Low voltage operation 2.5[V]
CH1 supply voltage output for internal circuit
CH1 PWM / PFM selectable
CH3-CH4 Boost-Buck auto switching
CH6 integrated Boost output shutdown
(Load switch embedded)
Soft-start correspondence to each channel
Built-in ground short protection function
(CH2 to CH6)
Built-in error amp phase compensation (CH1 to
CH6)
Operating frequency 1.5[MHz] (CH1 to CH6)
Key Specifications
Input Supply Voltage Range:
2.5V to 5.5V
Oscillating Frequency 1:
1.5 MHz(Typ)
ON-Resistance:
Refer to Electrical Characteristics
Shutdown Current Consumption:
0µA(Typ)
Operating Temperature Range: -20°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
UQFN056V7070
7.00mm x 7.00mm x 1.00mm
Applications
DSC/DVC
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/22
TSZ02201-0313AA400630-1-2
09.Feb.2016 Rev.001

1 page




BD9639MWV pdf
BD9639MWV
Electrical Characteristics
(Unless otherwise specified, VVBAT=VVBAT2,3,4,5,6=3.7[V], VCC input terminal =3.7[V], Ta=25[°C])
Parameter
Limit
Symbol
Unit
Min Typ Max
Conditions
Current Consumption (PFM)
Current Consumption (PWM)
Shutdown Current Consumption
H Input Voltage 1
L Input Voltage 1
XSHDN1=H, XSHDN24=L
Without load on each channel
ICC1 - 72 150 μA VFB1=0.5[V]
sum of VBAT terminal,
and OUT1 terminal
XSHDN1=H, XSHDN24=H,
TEST1=H
ICC2 1.57 2.35 3.53 mA VFB1=0.5[V]
Sum of VBAT terminal,
and OUT1 terminal
All setting terminal=L
ICC3 - 0 10 μA Sum of VBAT terminal,
and OUT1 terminal
VIH1
VIL1
VVBAT
-0.3
-
-
-
-
GND
+0.3
V
XSHDN1
V
H Input Voltage 2
L Input Voltage 2
H Input Current 1
VIH3 2.5 - - V XSHDN24, XSHDN3,
VIL3
-
-
GND
+0.3
V XSHDN5, XSHDN6
Input voltage =3.7[V]
IIH1 4.63 9.25 18.5 μA XSHDN24, XSHDN3,
XSHDN5, XSHDN6
Oscillating Frequency 1
fOSC1 1.2 1.5 1.8 MHz RRT=10[kΩ]
Reduced-voltage Detection Voltage VUVLO1 1.75 1.95 2.15
V
Reduced-voltage Return Voltage VUVLO2 1.95 2.15 2.35
V
CH1
Soft-start Period 85%
Error Amp Reference Voltage
PMOS ON-Resistance
NMOS ON-Resistance
tSS1
VEREF1
RONP1
RONN1
310
0.388
-
-
620
0.400
0.24
0.14
930
0.412
0.38
0.23
μs
Soft-start period 100% 730[µs](Typ)
XSHDN24=L
V XSHDN24=H
Ω Power supply 3.7[V]
Ω Power supply 3.7[V]
Maximum Duty
DMAX1 76.5 85.0 93.5 % XSHDN24=H
CH2
Error Amp Reference Voltage
VEREF2 0.390 0.400 0.410
V
Soft-start Period 85%
PMOS ON-Resistance
NMOS ON-Resistance
tSS2
RONP2
RONN2
0.43 0.85 1.27
- 0.13 0.21
- 0.08 0.14
ms Soft-start period 100% 1.0[ms](Typ)
Ω Power supply 3.7[V]
Ω Power supply 3.7[V]
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
5/22
TSZ02201-0313AA400630-1-2
09.Feb.2016 Rev.001

5 Page





BD9639MWV arduino
BD9639MWV
(7) CH3
(a) Function
Synchronous rectification cross converter with built-in power MOS output stage.
Output voltage ranges from 1.80[V] to 2.80[V].
OUT3
R31 C33
R32
FB3
Buck-Boost
PWMCOMP
PRE
DRIVER
OUT3
USW3
PGND3
VBAT3
DSW3
0.4[V]
SAW
MAX.
DUTY
DPG3
OUT3
C31
VBAT
L31
C32
P31
(b) Recommended External Components
Parts
Name
Value
Maker
Part Number
R31
Refer to right
table
-
-
R32
Refer to right
table
-
-
C31
22[µF]
Taiyo Yuden JMK212BJ226MG
C32
10[µF]
Taiyo Yuden JMK212BJ106KG
C33
100[pF]
Taiyo Yuden UMK105CH101JV
L31
4.7[µH]
Taiyo Yuden NR3015T4R7M
P31
-
ROHM
RW1A020ZP
(c) Start-up Sequence
2.5[V] to5.5[V]
OUT3
Set external
R31
R32
1.80[V]
2.80[V]
100[kΩ]
100[kΩ]
27[kΩ] + 1.6[kΩ] 12[kΩ] + 4.7[kΩ]
VBAT3
H input voltage
XSHDN1
XSHDN24
XSHDN3 0[V]
OUT3 0[V]
H input voltage
1.80[V] to 2.80[V]
Discharge
Soft start period
2.00[ms]
(Note) When VOUT=1.8[V], if OUT3USW3 are not used (These terminals are only for Buck condition),
Discharge function is not activated.
(d) DPG3
The DPG3 output terminal is a gating signal to an external PMOS inserted between VBAT3 and DSW3.
If the VVBAT voltage becomes lower than 2.85[V], DPG3 becomes Low and an external PMOS turns ON.
The over-current can still electrify even if the voltage descend.
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
11/22
TSZ02201-0313AA400630-1-2
09.Feb.2016 Rev.001

11 Page







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