HIP9022 Datasheet, PDF (1/10 Pages) Intersil Corporation – Dual High Speed Laser Driver

PRELIMINARY
Data Sheet
HIP9022
October 1998 File Number 4509.1
Dual High Speed Laser Driver
The HIP9022 Dual High Speed Laser Driver is designed to
operate with a constant current drain from the power supply.
This current defines the laser operating power. The current is
accurately controlled in the range of 0.5A to 2A to deliver
constant optical power from the laser when used with an
external Power FET and Power Sense resistor. The operating
circuit allows flexibility in choosing driver current levels.
Eight S/H circuits are multiplex bus controlled to provide
analog data for the dual laser drivers. The bus is updated
during the blanking period of the laser printer scan with a
data rate up to 2.5MHz. A “thermo-electric-cooler” control
circuit provides temperature control of the laser. Two on-chip
ESD diodes protect each laser.
A principle advantage of the Dual High Speed Laser Driver is
accomplished by managing the high currents externally with
discrete Power FETs and thereby not forcing large switching
currents to exist on the same IC substrate with the precision
control circuitry.
Ordering Information
PART NUMBER
HIP9022AM
TEMP.
RANGE (^oC)
0 to 100
PACKAGE
68 Ld PLCC
PKG. NO.
N68.95
Features
• Dual High Speed Laser Driver with Data Rates up to
2.5MHz
• 0.5A to 2A Range of Constant Current Source Controlled
to 0.1% Full Scale
• Low Signal Transients with Controlled Constant Current
Switching
• Laser Optical Power Controlled to Better than 0.5%
• Thermoelectric Cooler (TEC) Circuit to Control
Temperature to within 0.25^oC
• Multiplexed Sample/Hold (S/H) Bus Interface
• Serial Diagnostic Bus with Multiplexed Output
• High Current ESD Diodes for Laser Diode Protection
Applications
• Dual Laser Printer Driver
Pinout
HIP9022 (PLCC)
TOP VIEW
VUP1
SG_1
VLOW1
V_EE
GNDA1
GNDD1
CC1
XTEN1+
XTEN1-
CTC1-10K
CTC1-27K
LASERON1B
OC1
TECFB1
TECREF1
TECGDR1
TRES1
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
10
60
11
59
12
58
13
57
14
56
15
55
16
54
17
53
18
52
19
51
20
50
21
49
22
48
23
47
24
46
25
45
26
44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
VUP2
SG_2
VLOW2
GNDA2
GNDD2
CC2
XTEN2+
XTEN2-
CTC2-10K
CTC2-27K
LASERON2B
OC2
TECFB2
TECREF2
TECGDR2
TRES2
OT2
4-1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999