0
ACTIVE
Number of channels |
2 |
Vin (min) (V) |
2.7 |
Vin (max) (V) |
5.5 |
Vout (min) (V) |
0 |
Vout (max) (V) |
29.5 |
Type |
Inductive |
Switching frequency (max) (kHz) |
1100 |
Duty cycle (max) (%) |
94 |
LED current per channel (mA) |
25 |
Peak efficiency (%) |
92 |
Topology |
Boost, Current Sink, Multi-Channel |
Features |
Adjustable Switch Frequency, CABC, Direct PWM Dimming, Enable/Shutdown, I2C control, Integrated Switch, OVP, PWM control, Soft Start |
Operating temperature range (°C) |
-40 to 85 |
Rating |
Catalog |
DSBGA (YFF)-30-5.71999999999999912 mm² 2.2 x 2.5999999999999996
The LM3632A integrates the WLED drivers for both the backlight of the LCD panel and the camera flash along with the bias power for the LCD panel into one device. The device has all the safety features required in LED drivers with up to 90% efficiency and bias positive/negative power rails achieving 1.5% accuracy. Capable of driving up to 16 backlight LEDs, the device is ideal for small- to medium-size displays. A 1.5-A constant-current LED driver powered by a synchronous boost converter can be used for flash applications. The high-side flash current source allows for grounded cathode LED operation.
A high level of integration and programmability allows the LM3632A to address a variety of applications without the need for hardware changes.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
