Integrated White LED Driver
www.DataSheet4U.com
AME, Inc.
AME5136
n General Description
The AME5136 is a dual Boost DC/DC converter, designed to dr...
Description
www.DataSheet4U.com
AME, Inc.
AME5136
n General Description
The AME5136 is a dual Boost DC/DC converter, designed to drive up to 4 white LEDs with a constant current and to power an organic LED display with a constant voltage. According to SEL pin status, the AME5136 can either regulates output current flowing through series connected LEDs or regulate output voltage applying to OLED. A single external resistor is used to set the maximum LED current. The LED current can be adjusted by applying a PWM signal to the EN pin. Pulling the EN pin to GND disables the chip and reduces the supply current to less than 1uA. Additional features include a low-side NFET switch that can turn off the LED string with no DC current path to ground. Other features include OVP, OCP, UVP and OTP. The AME5136 is available in a small DFN-10( 3mmx3mmx0.85mm) package.
Integrated White LED Driver With Organic LED Display Power Supply
n Typical Application
V IN 2.7V~4.2V CIN 4.7µ F VIN OVP ILED1 CH1 VFB1 FB1 >1.5V 0V EN Main V SUB SEL GND FB2 RSUB2 CH2 47P RSUB1 OLED SUB Display AME5136 RFB1 ILED1= 0.21 R FB1 L 10µ H D Main Display COUT1 1 µF
SW
n Features
l Integrated OLED and White-LED Driver l Wide Input Voltage Range: 2.7V to 5.5V l Adjustable output voltage up to 20V l Complete Protection: OVP, OTP, UVP l PWM Dimming Control l Small External Components l Cycle-By-Cycle Current Limit l All AME's Lead Free Products Meet RoHS Standards
VIN 2.7V~4.2V C IN 4.7µF
RSUB1 VSUB = 1 + R ×1.23 ...
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