LDS8865002-T2-200/200/200 Leadis Technology, LDS8865002-T2-200/200/200 Datasheet - Page 6

• Manufacturer Part Number: LDS8865002-T2-200/200/200
• Description: LED Drivers 6-Ch Ultra Low Drop PowerLite Current Rg
• Manufacturer: Leadis Technology

Specifications of LDS8865002-T2-200/200/200

• High Level Output Current: 120 mA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 1.7 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-16
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LDS8865
PIN DESCRIPTION
PIN FUNCTION
Vin is the supply pin for the charge pump. A small
1
the Vin pin and ground near the device. The
operating input voltage range is from 2.5V to 5.5V.
Whenever the input supply falls below the under-
voltage threshold (1.8V), all the LED channels are
disabled and the device enters shutdown mode.
PWM1, PWM2 are the enable and PWM LED
brightness control logic inputs.. Guaranteed levels of
logic high and logic low are set at 1.3V and 0.4V
respectively. When any of PWM pins is taken high,
the device becomes enabled with maximum LED
current at associated bank. To place the device into
zero current mode, both PWM pins must be held low
for more than 1.5ms.
Vout is the charge pump output that is connected to
the LED anodes. A small 1
© 2007 Leadis Technology
Characteristics subject to change without notice
μ
15, 16
Pin #
F ceramic bypass capacitor is required between
TAB
10
11
12
13
14
1
2
3
4
5
6
7
8
9
LEDC2 LEDC2 cathode terminal
LEDC1 LEDC1 cathode terminal
LEDB2 LEDB2 cathode terminal
LEDB1 LEDB1 cathode terminal
LEDA2 LEDA2 cathode terminal
LEDA1 LEDA1 cathode terminal
PWM2
PWM1
Name
GND
Vout
C1+
C2+
TAB
C1-
C2-
Vin
Charge pump output connected to the LED anodes
Charge pump input, connect to battery or supply
Bucket capacitor 1 Positive terminal
Bucket capacitor 1 Negative terminal
Bucket capacitor 2 Positive terminal
Bucket capacitor 2 Negative terminal
LEDC bank PWM brightness control
LEDA and LEDB banks PWM brightness control
Ground Reference
Connect to GND on the PCB
μ
F ceramic bypass
Function
6
capacitor is required between the Vout pin and
ground near the device.
GND is the ground reference for the charge pump.
The pin must be connected to the ground plane on
the PCB. C1+, C1- are connected to each side of the
ceramic bucket capacitor C1
C2+, C2- are connected to each side of the ceramic
bucket capacitor C2
LEDA1 – LEDC2 provide the internal regulated
current source for each of the LED cathodes. These
pins
whenever the device is in shutdown mode.
TAB is the exposed pad underneath the package.
For best thermal performance, the tab should be
soldered to the PCB and connected to the ground
plane
enter
high-impedance
Top view: TQFN 16-lead 3 X 3 mm
Doc. No. 8865DS, Rev. 2
zero
current
state