BD9352GUL Datasheet, PDF (1/5 Pages) Rohm – Silicon Monolithic Integrated Circuit

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STRUCTURE
Silicon Monolithic Integrated Circuit
PRODUCT SERIES
4-Channel Switching Regulator Controller for Digital Camera
TYPE
ＢＤ９３５２ＧＵＬ
BLOCK DIAGRAM
Fig. 1
PACKAGE
Fig. 2
PIN ASSIGNMENT
Fig. 3
Functions
● Contains cross converter(1ch), step-down converter(2ch), step-up converter(1ch), configurable for inverting/step-down
converter(1ch).
● 2channels contain transistor for synchronous rectifying action mode.
● 1channels contain FETs for the step-up converter.
● All channels contain internal compensation.
● It is possible separately control all channel
● Operating frequency 1.5MHz(CH2), 750kHz(CH1,3,4).
● Contains output interception circuit when over load.
● 1 channels have high side switches with soft start function.
● 3.3mm×3.3mm t = 0.55mm WLCSP package (VCSP50L3)
○Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Limit
Unit
Power Supply Voltage
VCC
－0.3～7
V
VHx1～2
－0.3～7
V
Power Input Voltage
HS4H
VLx4
－0.3～7
V
－0.3～22
V
VDCM3
ＶＣＣ－15～0.3
V
IomaxHx1
+2.0
A
IomaxHx2
+1.0
A
Output Current
IomaxHS4
+1.2
A
IomaxLx4
±1.0
A
Power Dissipation
Pd
1325(*1)
mW
Operating Temperature
Topr
－25～+85
℃
Storage Temperature
Tstg
－55～+150
℃
Junction Tempareture
Tjmax
+150
℃
(*1) When mounted on a glass epoxy PCB (50 mm x 58 mm x 1.75 mm). Reduced by 10.6 m W/°C when using at Ta = 25 °C or higher.
○Recommended operating conditions
Parameter
Power Supply Voltage
VREF Pin Connecting
Capacitor
VREGA Pin Connecting
Capacitor
Limit
Symbol
Unit
MIN TYP MAX
VCC
2.5
-
5.5
V
CVREF 0.47 1.0
4.7
μF
CVREGA 0.47 1.0
4.7
μF
Status of this document
The Japanese version of this document is the official specification. Please use the translation version of this document as a reference to expedite understanding of the official version.
If these are any uncertainty in translation version of this document, official version takes priority.
REV. B