LE75181ABSC Zarlink, LE75181ABSC Datasheet
LE75181ABSC
Specifications of LE75181ABSC
Available stocks
Related parts for LE75181ABSC
LE75181ABSC Summary of contents
Page 1
... Le58QL061/063 QLSLAC Data Sheet 080676 Le5711 Dual SLIC Data Sheet 081047 Le5712 Dual SLIC Data Sheet ORDERING INFORMATION 1 Device Package Type LE75181ABSC LE75181BBSC 16-Pin SOIC, GULL (Green) LE75181CBSC 1. The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment ...
Page 2
... Zero Cross Current Turn Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Switching Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Loss of Battery Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Impulse Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Protection .10 Integrated SLIC Device Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Physical Dimensions .15 16-Pin, Plastic SOIC (GULL) (ASC/BSC/CSC .15 Revision history .16 Revision .16 Revision .16 Revision .16 Revision .16 Revision .16 2 Zarlink Semiconductor Inc. ...
Page 3
... A battery voltage is also used by the Le75181, only as a reference for the integrated protection circuit. The Le75181 will enter an all OFF state upon loss of battery. During power ringing, to turn on and maintain the ON state, the ring access switch will draw a nominal 2 mA from the ring generator. The Le75181ASC/BSC/CSC device is packaged in a 16-pin, plastic SOIC (GULL) package. 3 Zarlink Semiconductor Inc. ...
Page 4
... Switching Behavior section of this data sheet for input pin description output, will read HIGH when device is in its operational mode and in the thermal shutdown mode. In the Le75181, the thermal shutdown mechanism cannot be disabled. Battery voltage. Used as a reference for protection circuit. 5-V supply. 4 Zarlink Semiconductor Inc. 16 VBAT RBAT 15 RLINE 14 ...
Page 5
... OPERATING RANGES Environmental Ranges Zarlink guarantees the performance of this device over commercial (0 to 70º C) and industrial (-40 to 85ºC) temperature ranges by conducting electrical characterization over each range and by conducting a production test with single insertion coupled to periodic sampling. These characterization and test procedures comply with section 4.6.2 of Bellcore GR-357-CORE Component Reliability Assurance Requirements for Telecommunications Equipment ...
Page 6
... Typ Max Min. — 0.850 2.1 — — 0.560 1.1 — Test Condition = –2 V BAT = –2 V BAT = –2 V BAT @ 50 Hz/60 Hz LIMIT 6 Zarlink Semiconductor Inc. Figure 7, on page 14 µ LCAS Device Power mW BAT Typ Max Min. Typ 4 10 — — 3 Measure Min ...
Page 7
... Sensitivity *This parameter is not tested in production. Choice of secondary protector should ensure this rating is not exceeded. †Applied voltage is 100 Vp-p square wave at 100 Hz. Not tested in production. Test Condition @ 50 Hz/60 Hz Test Condition 7 Zarlink Semiconductor Inc. Measure Min Typ Max Iswitch — — ...
Page 8
... DD BAT Vlogicin = 5 – BAT TSD — — has transitioned that the ring access switch is waiting for the next zero current cross RING 8 Zarlink Semiconductor Inc. Measure Min Typ Max Unit — — — 0.8 — 2.2 — — llogicin — — ...
Page 9
... This ultimately depends upon the characteristics of the individual system and is best evaluated at the board level. Break Switches Timing 1 & 2 Open Closed Closed Break Switches Timing 1 & 2 Open Open Open Closed 9 Zarlink Semiconductor Inc. Ring Return Ring Access Switch 3 Switch 4 Closed Closed Open Closed Open Open Ring Return Ring Access Switch 3 Switch 4 Closed ...
Page 10
... A detailed explanation and design equations on the choice of the external secondary Table 7) of the SCR must be less negative than the battery /R nodes will typically be a pulse of magnitude 2.5 A and BAT BAT /R will decrease as the device heats due to the fault current. If sufficient heating occurs, BAT 10 Zarlink Semiconductor Inc. Table 7. ...
Page 11
... Trigger current — VBAT — 0 0.5 µ 2 0.5 µs — 11 Zarlink Semiconductor Inc. | Min Typ Max — — 3.5 — 5 — — — ‡ — — — –0.5 — ...
Page 12
... BREAK SWITCHES – 2 – BAT ON <1 µ CURRENT LIMIT (OF BREAK SWITCHES Figure 3. Protection Circuit B Version dc CURRENT-LIMIT BREAK SWITCHES – BAT <1 µA dc CURRENT LIMIT (OF BREAK SWITCHES) Figure 4. Switches 1 and LIMIT R –1.5 V 1.5 V – LIMIT CURRENT LIMITING –I 12 Zarlink Semiconductor Inc CURRENT LIMITING 2 ...
Page 13
... Figure 5. Switch LIM1 2/3 R –V –V –V –1.5 R MAX 1.5 –I LIM2 –I LIM1 Figure 6. Switch –V OS – –I 13 Zarlink Semiconductor Inc LIM2 MAX +V ...
Page 14
... APPLICATION Figure 7. Typical LCAS Application, A/C Versions, Idle or Talk State Shown R1 TIP Crowbar Protection* RING R2 *Contact a Zarlink Sales/Application representative for recommendations. Table 8. Truth Table INPUT T Tip Break Switch 1/Float 1 1 1/Float Don’t Care 0 1. Thermal shutdown mechanism is active with T 2. ...
Page 15
... SOIC 15 Zarlink Semiconductor Inc. Inch Nom Max 0.100 0.104 0.006 0.012 0.016 0.020 0.010 0.012 0.295 0.299 0.050 BSC 0.406 0.419 0.020 0.029 0.028 ...
Page 16
... Added green package OPNs to Ordering Information, on page 1 • Added Package Assembly, on page 5 Revision • Removed non-green OPNs from • Added notes to Ordering Information, on page 1 Revision • Added new headers/footers due to Zarlink purchase of Legerity on August 3, 2007 Ordering Information, on page 1 16 Zarlink Semiconductor Inc. ...
Page 17
... Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned ...