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R1215D Datasheet, PDF (15/22 Pages) RICOH electronics devices division – STEP-UP DC/DC CONTOLLER | |||
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VIN
EXT
VREFOUT
AMPOUT
DTC
VFB
GND DELAY
VIN
EXT
VREFOUT
AMPOUT
DTC
VFB
GND DELAY
R1215D
Fig.7 DELAY Pin Detector Threshold Test Circuit
VIN
EXT
VREFOUT
AMPOUT
DTC
VFB
GND DELAY
100kâ¦
10kâ¦
Fig.8 UVLO Detector Threshold/Released
Voltage Test Circuit
VIN
EXT
VREFOUT
AMPOUT
DTC
VFB
GND DELAY
AV
Fig.9 Error AMP Gain/Phase Test Circuit
VIN
EXT
VREFOUT
AMPOUT
DTC
VFB
GND DELAY
A
Fig.10 VREFOUT Voltage Test Current
Fig.11 VFB Leakage Current Test Circuit
15
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