BD9839MWV Datasheet, PDF (3/5 Pages) Rohm – Silicon Monolithic Integrated Circuit

3/4
● Package
BD9839MW
Fig－１
● Block Diagram
LOT No.
● Pin Description
INV1
SOFT1
FB1
SS TIMER
ERRORAMP1
－
＋
INV2
SOFT2
FB2
SS TIMER
ERRORAMP2
－
＋
CH1
Step Down DC/DC
(Current mode)
CH2
Step Down DC/DC
(Current mode)
INV3
SOFT3
FB3
SS TIMER
ERRORAMP3
－
＋
INV4
SOFT4
FB4
SS TIMER
ERRORAMP4
－
＋
INV5
SOFT5
FB5
SS TIMER
ERRORAMP5
－
＋
CH3
Step Down DC/DC
(Current mode)
CH4
Step Down DC/DC
(Current mode)
CH5
Step Down DC/DC
(Voltage mode)
INV6
SOFT6
FB6
SS TIMER
ERRORAMP6
－
＋
SCP1
SCP
SCP TIMER
－－－－－－
＋
2.2V
CH6
Step Up DC/DC
(Voltage mode)
PROTECTION
CTL1
CTL2
CTL3
CTL4
CTL5
CTL6
SHUT DOWN
UVLO
OSC
VREGA
VREGD
RT CT SLOPE SEL
Fig－２
VREGA VREGD
BOOT1
PVCC1
Lx1(2pin)
PGND12(2pin)
BOOT2
PVCC2
Lx2
BOOT3
PVCC3
Lx3(2pin)
PGND34(2pin)
BOOT4
PVCC4
Lx4
PVCC56
OUT5
PGND56
OUT6
VCC
GND
Pin No. Pin Name
Pin Descriptions
Pin No. Pin Name
1
SEL
CH1～CH4 Oscillator Frequency Cotrol Pin
2 SOFT1
CH1 Soft Start Delay time Setting Pin
with External Capacitor
3
INV1
CH1Error Amplifier Negative Input Pin
29 BOOT4
30 PVCC4
31
Lx4
4
FB1
5 SOFT2
6
INV2
CH1 Error Amplifier Output Pin
CH2 Soft Start Delay time Setting Pin
with External Capacitor
CH2 Error Amplifier Negative Input Pin
32 PGND34
33 PGND34
34
Lx3
7
FB2
8 SOFT3
9
INV3
CH2 Error Amplifier Output Pin
CH3 Soft Start Delay time Setting Pin
with External Capacitor
CH3 Error Amplifier Negative Input Pin
35
Lx3
36 PVCC3
37 BOOT3
10
FB3
11 SOFT4
12
INV4
CH3 Error Amplifier Output Pin
CH4 Soft Start Delay time Setting Pin
with External Capacitor
CH4 Error Amplifier Negative Input Pin
38 BOOT2
39 PVCC2
40
Lx2
13
FB4
14 SOFT5
15
INV5
CH4 Error Amplifier Output Pin
CH5 Soft Start Delay time Setting Pin
with External Capacitor
CH5 Error Amplifier Negative Input Pin
41 CTL3
42 CTL2
43 CTL1
16
FB5
17 SOFT6
18
INV6
CH5 Error Amplifier Output Pin
CH6 Soft Start Delay time Setting Pin
with External Capacitor
CH6 Error Amplifier Negative Input Pin
44 PGND12
45 PGND12
46
Lx1
19
FB6
CH6 Error Amplifier Output Pin
47
Lx1
20 SCP1
Short Detective Comparator
Negative Input Pin
48 PVCC1
21
SCP
Short Circuit Protection Delay time Setting Pin
with External Capacitor
49
BOOT1
22 OUT6
CH6 NchFET Driver Output Pin
50 VREGD
23 PGND56
Ground Pin for CH5、6 Driver
51
VCC
24 OUT5
Output Pin for CH5 PchFET Driver
52 VREGA
25 PVCC56 Input Supply Voltage Pin for CH5、6 Driver
53
GND
26 CTL6
CH6 ON/OFF Control Pin
54 SLOPE
27 CTL5
CH5 ON/OFF Control Pin
55
RT
28 CTL4
CH4 ON/OFF Control Pin
56
CT
Pin Descriptions
Input Supply Voltage Pin for CH4 Output
Input Supply Voltage Pin for CH4 Output
Pin for Connecting to Inductor
Ground Pin for CH3、4 Output
Ground Pin for CH3、4 Output
Pin for Connecting to Inductor
Pin for Connecting to Inductor
Input Supply Voltage Pin for CH3 Output
Input Supply Voltage Pin for CH3 Output
Input Supply Voltage Pin for CH2 Output
Input Supply Voltage Pin for CH2 Output
Pin for Connecting to Inductor
CH3 ON/OFF Control Pin
CH2 ON/OFF Control Pin
CH1 ON/OFF Control Pin
Ground Pin for CH1、2 Output
Ground Pin for CH1、2 Output
Pin for Connecting to Inductor
Pin for Connecting to Inductor
Input Supply Voltage Pin for CH1Output
Input Supply Voltage Pin for CH1Output
Bias Output Voltage Pin
Input Supply Voltage Pin
Reference Output Voltage Pin
Ground Pin
Slope Setting Pin with external Resistor
Oscillator Frequency Adjustment Pin
with external Resistor
Oscillator Frequency Adjustment Pin
with external Capacitor
REV. C