AS1170 Datasheet | ams OSRAM

AS1170 General description AS1170 High current LED/VCSEL driver 1 General description The AS1170 is an inductive high efficient DCDC step up converter with two current sinks. The DCDC step up converter operates at a fixed frequency of 4 MHz and includes soft startup to allow easy integration into noise sensitive RF systems. The AS1170 includes flash timeout, overvoltage, over temperature, undervoltage and short circuit protection functions. The AS1170 is controlled by an I²C interface and has a hardware automatic shutdown if SCL=0 for 100 ms. Therefore, no additional enable input is required for shutting down of the device once the system shuts down. The AS1170 is available in a space-saving WL-CSP package measuring only 2.25 mm x 1.5 mm x 0.6 mm. Key benefits & Features The AS1170 module is specifically designed for: Table 1: Added value overview Features High efficiency 4 MHz fixed frequency DCDC Boost converter Independent channel control PWM operation for lower output current WL-CSP package Automatic current adjustment for low battery voltage High output current Benefits Stable even in coil current limit bine channels for higher current output 31.25 k Hz to avoid audible noise Tiny footprint of 2.25 mm x 1.5 mm x 0.6 mm Long battery lifetime Current adjustable up to 2000 m A 1.2 Applications - Flash / torch / video light for smartphones, feature-phones - 3D sensing - Active stereo vision / structured light - Handheld scanners - Safety signage - PUBLIC - Document Feedback DS001083 - v2-00 - 2024-Feb-05 / 4 / 53 AS1170 Ordering information 1.3 Block diagram The functional block of this device is shown below: Figure 1: Functional block of AS1170 VBAT + CVIN 10u F LDCDC...