bd9353mwv ROHM Co. Ltd., bd9353mwv Datasheet

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bd9353mwv

Manufacturer Part Number
bd9353mwv
Description
7-channel Switching Regulator Controller For Digital Camera
Manufacturer
ROHM Co. Ltd.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
bd9353mwv-E2
Manufacturer:
ROHM/罗姆
Quantity:
20 000
STRUCTURE
PRODUCT SERIES
TYPE
PIN ASSIGNMENT
BLOCK DIAGRAM
PACKAGE
Functions
○Absolute maximum ratings(Ta=25℃)
○Recommended operating conditions
*1 Should be derated by 7.04mW/℃ at Ta=25℃ or more. When mounted on a glass epoxy PCB of 74.2mm×74.2 mm×1.6 mm
P o w e r
O u t p u t
P o w e r
O p e r a t i n g
S t o r a g e
J u n c t i o n
Power Supply Voltage (at start-up)
Power Supply Voltage (after start-up)
VREF Pin Connecting Catacitor
VREGA Pin Connecting Capacitor
PWM7 freqency
【Oscillator】
Oscillator (CH1,3,4)
OSC Timing Resistor
● CH1step-down converter, CH2cross converter, CH3 step-down converter, CH4 step-up converter
● All Internal Power MOSFETs
● Built-In MOSFETs for synchronous rectifying action mode on CH1~4
● Built-In feedback resistors on CH2
● All channels contain internal compensation between inputs outputs of error amps
● Contains sequence control circuit for CH1~4
● Operating frequency 1.5MHz(CH1,3,4)、750KHz(CH2,5,6,7)
● Built-In Short-circuit Protection (SCP)
● CH6 have high side switches with soft start function
● Built-In Over voltage Protection (OVP)
● Thermally enhanced UQFN036V5050 package(5mm×5mm, 0.4mm pitch)
● Power supply voltage 2.2~5.5V(at start-up), 2.05~5.5V(after start-up)
I n p u t
BD9353MWV
Parameter
7-Channel Switching Regulator Controller for Digital Camera
Fig.1
Fig.1
Fig.2
Silicon Monolithic Integrated Circuit
CH5 inverting converter for CCD, CH6 boost converter for CCD, CH7 boost converter for LED
D i s s i p a t i o n
T e m p e r a t u r e
T e m p e r a t u r e
T e m p e r a t u r e
c u r r e n t
Parameter
V o l t a g e
Hx4,Hx567,VO2,HS6L
VCC,Hx13,Hx2,
IomaxHx4,Lx4
IomaxLx6~7
STB1234,56
IomaxHS6L
Hx5 - Lx5
IomaxHx2
IomaxHx3
IomaxHx5
IomaxLx1
Lx7,VO7
Symbol
PWM7
Tjmax
Topr
CVREGA
Tstg
Lx6
Symbol
CVREF
Pd
VCC1
VCC2
fpwm
fosc
RT
REV. A
0.047
MIN
2.05
0.47
2.2
0.8
20
47
-55~+150
-25~+85
-0.3~20
-0.3~7
-0.3~7
-0.3~7
-0.3~15
-0.3~21
±0.8
±1.5
±0.8
±2.2
±1.5
±1.2
±1.2
Limit
+150
TYP
0.1
1.0
1.5
0.88 *1
Limit
62
-
-
-
MAX
0.47
100
120
5.5
5.5
4.7
1.8
Unit
W
V
V
V
V
V
V
A
A
A
A
A
A
A
MHz
Unit
μF
μF
kHz
V
V
1/4

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bd9353mwv Summary of contents

Page 1

STRUCTURE Silicon Monolithic Integrated Circuit PRODUCT SERIES 7-Channel Switching Regulator Controller for Digital Camera BD9353MWV TYPE PIN ASSIGNMENT Fig.1 BLOCK DIAGRAM Fig.1 PACKAGE Fig.2 Functions ● Power supply voltage 2.2~5.5V(at start-up), 2.05~5.5V(after start-up) ● CH1step-down converter, CH2cross converter, CH3 step-down ...

Page 2

VCC=3V, RT=62kΩ, STB1~6=3V,PWM7=2.5V) Standard Value Parameter Symbol MIN TYP MAX 【Internal Regulator VREGA】 VREG Output Voltage 2.125 2.2 2.275 A 【Under Voltage Lockout】 VCC startup voltage Vuv1 - 1.95 2.05 Threshold VCC minimum operating voltage Vuv2 - 2.05 ...

Page 3

Assignment ・Block Diagram HX567 STB56 ○Package BD9353 図- OSC INV6 28 1.0V - VREF + 29 INV7 - + 30 LED VO7 31 OVP PWM & 32 PWM7 FILTER LOGIC BLOCK HS6L ...

Page 4

Notes 1.) Absolute maximum ratings This product is produced with strict quality control. However, the IC may be destroyed if operated beyond its absolute maximum ratings. If the device is destroyed by exceeding the recommended maximum ratings, the failure ...

Page 5

No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose ...

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