參數(shù)資料
型號(hào): R1212D102C
廠商: Ricoh Co., Ltd.
英文描述: STEP-UP DC/DC CONTOLLER
中文描述: 升壓型DC /直流位指示
文件頁(yè)數(shù): 2/41頁(yè)
文件大小: 690K
代理商: R1212D102C
R1212D
BLOCK DIAGRAM
2
V
REFOUT
DTC
V
FB
A
MPOUT
Internal VR
UVLC
Oscillator
Latch
V
REF
D
ELAY
GND
EXT
V
IN
V
REFOUT
PWM Comp
Er.Amp
SELECTION GUIDE
In the R1212D Series, the oscillator frequency, UVLO detector threshold, and with/without internal limit of
maximum duty cycle can be selected at the user's request.
The selection can be made with designating the part number as shown below;
R1212D10xx-TR-x
Part Number
a b
Code
a
Oscillator Frequency
UVLO Detector Threshold
0A
Typ. 700kHz
Typ. 1.9V
Contents
Internal Maximum Duty Limit
No
0B
Typ. 1.4MHz
Typ. 1.9V
No
1A
1C
Typ. 700kHz
Typ. 300kHz
Typ. 2.1V
Typ. 2.1V
Typ. 90%
Typ. 91.5%
2A
Typ. 700kHz
Typ. 2.8V
Typ. 90%
2C
Typ. 300kHz
Typ. 2.8V
Typ. 91.5%
b
Designation of composition of pin plating
-F: Lead free plating
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