WLCSP Pin Configuration
Bumps Facing Down
Bumps Facing Up
Figure 2. WLCSP-16, 0.4mm Pitch, 1.61mm x 1.61mm
Pin Definitions
Pin #
D2
B4
D1
D3,D4
C3,C4
A1, A2, B1,
B2, C1, C2
A4
B3
A3
Name
Description
VIN
GND
Input Voltage. Connect to 2.7 – 5.5VDC input power source.
Ground
VOUT
Charge Pump Output Voltage. Connect to LED Anodes.
C1+, C1– C1. Charge pump flying capacitor #1.
C2+, C2– C2. Charge pump flying capacitor #2.
D2A, D1A, D4A,
D3A, D6B, D5B
LED Outputs
EN
Enable. When this pin is HIGH, normal operation is enabled. When LOW, the IC is reset
and all functions are disabled.
PWMA
Group-A PWM Dimming Input
PWMB
Group-B PWM Dimming Input
© 2009 Fairchild Semiconductor Corporation
FAN5701 • Rev. 1.0.3
3
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