iC-NZ

FAIL-SAFE LASER DIODE DRIVER

Rev B2, Page 3/20

PACKAGES QFN28 5 mm x 5 mm to JEDEC Standard (MO-220-VHHD-1)

PIN CONFIGURATION QFN28 5 mm x 5 mm

(top view)

PIN FUNCTIONS

No. Name

Function

1 RMDH APC Setup, Monitor Input Hi

2 RVDD Reference (P-type laser diodes)

3 RMDM APC Setup, Monitor Input Mid

4 NSF

No-Safety Signal

PIN FUNCTIONS

No. Name

Function

5 MDL

APC Setup, Monitor Input Lo

6 ENCAL Enable Calibration

7 RGND

Internal Ground

8 SMD

Safety Monitor Diode

9 GND

Ground

10 VREF

Reference Voltage

11 CIL

Power Control Capacitor Lo

12 REGEN Regulator Enable

13 CIM

Power Control Capacitor Mid

14 LENL

Enable Laser Channel Lo

15 LENM

Enable Laser Channel Mid

16 GND

Ground

17 LDKM

Cathode Laser Diode Mid

18 AGND

Analog Ground

19 LDKL

Cathode Laser Diode Lo

20 LDKH

Cathode Laser Diode Hi

21 LENH

Enable Laser Channel Hi

22 NERR

Error Output

23 EN

Enable Input

24 CIH

Power Control Capacitor Hi

25 LDA

Anode Laser Diode

26 RSI

Current Monitor Setup

27 SDIS

External Current Limitation

28 VDD

Power Supply

The Thermal Pad is to be connected to a Ground Plane (GND) on the PCB. Pins 9, 16 (GND) and 18

(AGND) must be connected externally, e.g. to a Ground Plane.

Orientation of package label (

NZ CODE ...) may vary.