MAX1574 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Lista de partido
MAX1574 Datasheet PDF : 9 Pages
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180mA, 1x/2x, White LED Charge Pump
in 3mm x 3mm TDFN
C1
0.22µF OR 0.47µF
2.7V TO 5.5V
IN
CIN
1µF
DIMMING
EN
CONTROL AND
ENABLE
ON
OFF
CP
CN
1x/2x REGULATING CHARGE PUMP
ERROR
AMP1
CONTROL AND
REFERENCE
0.18V
0.6V
CONTROLLED-CURRENT
MIRROR
SELMIN
SET
RSET
ERROR
AMP2
MAX1574
GND
OUT
COUT
1µF
OVD
1.25V
LED1
D1
LED2
D2
LED3
D3
Figure 2. Functional Diagram and Typical Application Circuit
0.22µF
2.7V TO 5.5V
CP
IN
CN
OUT
1µF
1µF
MAX1574
GND
LED1
ON/OFF AND
DIMMING
EN
LED2
SET
LED3
Chip Information
TRANSISTOR COUNT: 6063
PROCESS: BiCMOS
Figure 3. Using the MAX1574 to Drive Fewer Than Three LEDs
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