TLP127 Toshiba, TLP127 Datasheet - Page 76

• Manufacturer Part Number: TLP127
• Description: PHOTOCOUPLER DARL-OUT 4-SMD
• Manufacturer: Toshiba

Specifications of TLP127

• Number Of Channels: 1
• Input Type: DC
• Voltage - Isolation: 2500Vrms
• Current Transfer Ratio (min): 1000% @ 1mA
• Voltage - Output: 300V
• Current - Output / Channel: 150mA
• Current - Dc Forward (if): 50mA
• Vce Saturation (max): 1.2V
• Output Type: Darlington
• Mounting Type: Surface Mount
• Package / Case: 4-SMD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current Transfer Ratio (max): -

11
A variety of photocouplers are used to isolate between telephone lines (L1 and L2) and a CPU.
Application
Ring
Detector
Dial
Pulsing
Line
Detector
Line
Switch
8
Push-Button Telephone Application
Photocoupler Application Circuit Examples
DIP4
MFSOP6 SOP4
DIP4
MFSOP6
DIP4
DIP4
DIP4
DIP6
DIP8 (Dual)
2.54SOP4
2.54SOP6
2.54SOP8 (Dual)
Package Type
L
L
1
2
Line Detector
TLP781
TLP181
TLP627
TLP127
TLP628
TLP629
TLP222G*
TLP592G*
TLP222G-2*
TLP170G*
TLP192G*
TLP200D**
TLP629
TLP320
+V
TLP281
TLP227G*
TLP597G*
TLP227G-2*
TLP176D**
TLP197G*
TLP202G*
DC Input
Ring Detector
Part Number
TLP285
TLP176G*
TLP206G*
TLP180
TLP620
76
Main Unit
+V
CPU
TLP627
TLP620
TLP180 TLP280
TLP320
Dial Pulsing
AC Input
Circuit
Dial
General single transistor output in
compact packages
Good cost performance
High-V
output in compact packages
Suitable to generate a pulse dial signal
High-V
High LED current rating = 150 mA
Directly connectable to telephone lines
MOSFET-output photorelay
with V
Crosspoint relay replacement
(*: V
Control
Circuit
Line
OFF
OFF
CEO
CEO
= 350 V, **: V
TLP222G-2
= 400 V
(350 V) single transistor output
(300 V) Darlington transistor
Line Switch
Features
OFF
= 200 V)
Push-Button
Telephone