STP1612PW05 datasheet(18/35 Pages) STMICROELECTRONICS

Part #	STP1612PW05

Description	16-channel LED driver with 16-bit PWM, 8-bit gain and full LED error detection

PDF	35 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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18 / 35 page

Setting the PWM gray scale counter

STP1612PW05

18/35

Doc ID 15819 Rev 4

Setting the PWM gray scale counter

STP1612PW05 provides a 12-bit or 16-bit PWM color depth. Each serial data input will be

implemented according to the e-PWM algorithm.

9.1

PWM data synchronization

STP1612PW05 defines the different counting algorithms that support e-PWM, technology,

(scrambled PWM). With e-PWM, the total PWM cycles can be broken down into MSB (most

significant bits) and LSB (least significant bits) of gray scale cycles, and the MSB

information can be dithered across many refresh cycles to achieve overall same high bit

resolution. STP1612PW05 also allows changing different counting algorithms and provides

the best output linearity when there are fewer transitions of output.

Figure 8.

12-bit e-PWM operation example

PWCLK

STP1612PW05 Datasheet(PDF) 18 Page - STMicroelectronics