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PDF M66515 Data sheet ( Hoja de datos )
| Número de pieza | M66515 | |
| Descripción | LASER-DIODE DRIVER/CONTROLLER | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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MITMSUITBSIUSBHIS〈HDIG〈DITIAGLITALSSAPS〉SP〉
M665M16565F1P5FP
LASLEARS-DEIRO-DDEIODDREIVDERRIV/CEORN/CTORNOTLRLOERLLER
DESCRIPTION
The M66515 is a semiconductor laser-diode driver/controller.
Its functions are the driving and laser power control of a spe-
cific type (Mitsubishi’s N type laser) of semiconductor laser
diode, in which the anode of a semiconductor laser diode is
connected in stem structure to the cathode of a monitoring
photodiode.
The IC has a laser drive current output pin of sink type and is
capable of driving a laser diode on a maximum bias current
of 30mA and a maximum switching current of 120mA, which
is switched at a rate of 40Mbit/s.
Since the M66515 has a built in sample-hold circuit, it is pos-
sible to realize an internal APC∗ system that requires no ex-
ternal device for laser power control.
∗: Automatic Power Control
FEATURES
• Built-in sample-hold circuit for internal APC function
• High speed switching (40Mbps)
• Large drive current (150mA max.)
• Capable of setting bias current (30mA max.)
• 5V single power supply
APPLICATION
Semiconductor laser-diode applied equipment
PIN CONFIGURATION (TOP VIEW)
OUTPUT TO SWITCHING
CURRENT SETTING LOAD
RS ← 1
GND1
OUTPUT TO BIAS CURR-
ENT SETTING LOAD
RB ←
BIAS CURRENT
SETTING VOLTAGE INPUT
VB →
REFERENCE VOLTAGE
OUTPUT
REFERENCE VOLTAGE INPUT
Vref ←
Vr →
HOLDING CAPACITANCE
LOAD INPUT/OUTPUT
CH ←→
→SAMPLE-HOLD CONTROL
INPUT
S/H
VCC1
2
3
4
5
6
7
8
9
TEST PIN TEST 10
20 VCC2
19 →RO
LASER CURRENT
LOAD OUTPUT
18 NC
17 →LD
LASER CURRENT
OUTPUT
16 GND2
15 ←PD
MONITORING DIODE
INPUT
14 ←DATA SWITCHING DATA INPUT
13 ←ENB
LASER CURRENT
ENABLE INPUT
12
11
←2RM
←1RM
MONITORING
INPUT
LOAD
Outline 20P2N-A
NC: No Connection
BLOCK DIAGRAM
REFERENCE
VOLTAGE INPUT Vr 6
SAMPLE-HOLD S/H 8
CONTROL INPUT
HOLDING CAPACITANCE
LOAD INPUT/OUTPUT CH 7
OUTPUT TO SWITCHING
CURRENT SETTING RS 1
LOAD
BIAS CURRENT SETTING
VOLTAGE INPUT
VB 4
OUTPUT TO BIAS RB 3
CURRENT SETTING LOAD
MONITORING
LOAD INPUT
1RM
11
2RM
12
MONITORING
DIODE INPUT
PD
15
LASER CURRENT REFERENCE LASER CURRENT
OUTPUT VOLTAGE OUTPUT LOAD RESISTOR
LD Vref RO
17 5 19
DIFFRENTIAL AMP
SAMPLE-HOLD
CIRCUIT
REFERENCE
IPD VOLTAGE SOURCE
(1.2V typ)
IB+ISW
CURRENT SWITCHING
CIRCUIT
IB ISW
SWITCHING CURRENT
SOURCE (ISW)
120mA max.
BIAS CURRENT
SOURCE (IB)
30mA max.
VCC1, GND1: For analog circuits in IC
VCC2, GND2: For digital circuits in IC
14 DATA
SWITCHING
DATA INPUT
9 VCC1
20 VCC2
2 GND1
16 GND2
13 ENB
LASER CURRENT
ENABLE CONTROL
INPUT
1
1 page  
MITSUBISHI 〈DIGITAL ASSP〉
M66515FP
LASER-DIODE DRIVER/CONTROLLER
ABSOLUTE MAXIMUM RATINGS (Ta = –20 ~ 70°C unless otherwise noted)
Symbol
Parameter
Conditions
VCC Supply voltage
CH, Vr
VI Input voltage
DATE, ENB, S/H
VO Output voltage RO
ISW Switching current
IB Bias current
Pd Power dissipation
Measured being mounted
Ta = 25°C
Tstg Storage temperature
Ratings
–0.5 ~ +7.0
–0.3 ~ VCC
–0.3 ~ +7.0
–0.3 ~ +7.0
150
45
1200
–65 ~ 150
Unit
V
V
V
mA
mA
mW
°C
RECOMMENDED OPERATIONAL CONDITIONS (Ta = –20 ~ 70°C unless otherwise noted)
Symbol
Parameter
Limits
Min. Typ. Max.
VCC Supply voltage
4.75 5.0 5.25
ISW Switing current
120
IB Bias current
30
Topr Operating ambient temperature
–20
70
Unit
V
mA
mA
°C
ELECTRICAL CHARACTERISTICS (Ta = –20 ~ 70°C, VCC = 5V±5% unless otherwise noted)
Symbol
VIH
VIL
Vr
Vref
VLD
VI
VOH
VOL
II
ISW
IB
Icg
Idg
Ioz
IOFF
ICC
Parameter
“H” Input voltage
DATA, ENB, S/H
Test conditions
Min.
2.0
“L” Input voltage
Reference voltage input
Reference voltage
output
Operating voltage range
Maximum effective voltage
“H” output voltage
“L” output voltage
Input current
Switching current (Note)
Bias current
(Note)
Load charging current
Load discharging current
DATA, ENB, S/H
Vr
Vref
Temprature
coefficient
LD
CH
CH
CH
DATA, ENB
CH
LD
Temprature coefficient
LD
CH
CH
IO = –10µA
Ta = –20 ~ 25°C
Ta = 20 ~ 70°C
ENB = 0.8V, IOH = –2mA
ENB = 0.8V, IOL = 2mA
VI = 2.7V
VI = 0.4V
VI = 0 ~ VCC
CH = 3.0V, RS = 300Ω, VLD = 2V
Ta = 20 ~ 70°C
VB = 1.2V, RB = 360Ω, VLD = 2V
ENB = 0.8V, VO = 0.6 ~ 4.0V
ENB = 0.8V, VO = 0.6 ~ 4.0V
0.4
2.5
VCC – 1.8
4.0
–0.66
0.66
Output current under off
condition
CH
VO = 0 ~ VCC, Hold condition
Output current under off
condition
LD
Supply current
ENB = 0.8V, DATA = 2.0V
ENB = 2.0V, DATA = 0.8V
VCC = 5.25V,
ENB = 0V,
DATA = 0V
CH = 3.0V, VB = 1.2V,
RS = 300Ω, RB = 360Ω, DATA = 4.5V
RO = LD = 5.0V
Limits
Typ.∗
1.2
–0.9
–0.9
VCC – 1.4
120
0.11
30
0.03
0.01
54
52
Max.
0.8
2.0
VCC
0.6
20
–0.2
±1
–2.0
2.0
±5
50
50
75
74
Unit
Test
circuit
V
V
V
V
mV/°C
1
V
V
V
V
µA
mA
µA
mA
mA/°C
mA
mA
mA
1
1
2
2
3
3
µA 3
µA 2
mA 4
∗ Typical values are gained under conditions of Ta = 25°C and Vcc = 5V.
Note: This parameter indicates the conversion characteristics of the input voltage and output current. In actual use, ISW and IB shall be within the range specified
as limits in the recommended operating conditions.
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet M66515.PDF ] | |
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