DS1861B+ Maxim Integrated Products, DS1861B+ Datasheet - Page 8

• Manufacturer Part Number: DS1861B+
• Description: IC LASR CTRLR 1CHAN 5.5V 16CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controller (Fiber Optic)r

Specifications of DS1861B+

• Number Of Channels: 1
• Voltage - Supply: 2.85 V ~ 5.5 V
• Current - Supply: 5mA
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 16-CSBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Full Laser Control with Fault Management
Figure 3. TX-D Timing During Normal Operation
Figure 4. Detection of Transmitter Safety Fault Condition
8
_____________________________________________________________________
OCCURENCE
OF FAULT
I
I
MODSET
BIASSET
I
I
*TX-F WILL ASSERT IF THE HTXP ALARM IS TRIGGERED WHILE THE BIAS CURRENTS
ARE DISABLED. THE LTXP ALARM IS MASKED WHILE TX-D IS ASSERTED.
BIASSET
MODSET
TX-D
TX-F
TX-F
TX-D
*
t
t
OFF
OFF
t
t
t
FAULT
FAULT
FAULT
t
ON:M
t
ON:B
t
FIRST CONTROL LOOP ADJUSTMENT OF
I
INIT:M
MODSET
Timing Diagrams (continued)
AFTER TX-D IS DEASSERTED