SC4809A

Not recommended for new designs.

The SC4809A/B/C is a 10 pin BICMOS primary side current mode controller for use in Isolated DC-DC and off-line switching power supplies. It is a highly integratedsolution, requiring few external components. It features a high frequency of operation, accurately programmable maximum duty cycle, current mode control, line voltagemonitoring, supply UVLO, low start-up current, and programmable soft start with user accessible reference. It operates in a fixed frequency, highly desirable forTelecom applications. Features a separate sync pin which simplifies synchronization to an external clock. Feeding the oscillator of one device to the sync of another forces biphase operation which reduces input ripple and filter size.

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Base Part Number (1)
SC4809 
Lead Free Part Number (1A), (13)
SC4809AIMSTRT 
Part Description
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER 
# of leads
10 
Package Type
MSOP 
Pb-Free (2)
YES 
Reflow Temp °C (3)
260 
Lead or Ball Finish
MATTE Sn 
MSL Rating
1 
REACH SVH C(223) EC1907/2006 (18)
YES Download Report 
JIG 101 A & B (12)
YES 
RoHS / RoHS 2 2011/65/EC (4) (5)
YES Download Report
RoHS 2/3 Amend 2015/863 (7)
YES Download Report 
WEEE 2012/19/EU (19)
YES 
China RoHS 2 GB/T 26572-2011
YES Download Report 
Halogen Free / Low IEC 61249-2-21/JS709C (20)
YES Download Report 
Proposition 65 (21)
YES Download Report 
Packaging Material 94/62/EC (17)
YES Download Report 
RoHS Compliant by Exception (8)
NO 
1 Exp. 9/20/2015
- 
2(a) Exp. 12/31/2012
- 
2(b)(3) Exp. 12/31/2011
- 
3 Exp. 12/31/2011
- 
4 Exp. 12/31/2011
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5 Exp. TBD
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6(a)* Exp. TBD
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6(b)* Exp. TBD
- 
6(c)* Exp. TBD
- 
7(a)* Exp. TBD
- 
7(b)* Exp. TBD
- 
7(c)-III Exp. 1/1/2013
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8(b) Exp. TBD
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9 Exp. TBD
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11(a) Exp. 9/24/2010
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12 Exp. 9/24/2010
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13(a)* Exp. TBD
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13(b) Exp. TBD
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14 Exp. 1/1/2011
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15* Exp. TBD
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Green Reportable Substance (9) Antimony (Sb)/ Berylliuum (Be)
Phosphorus (P) & (Red P)
Compliant (ND4) or below threshold PPM (7)
5599 
Device Mass (mg)
REFER TO IPC 1752-2 
Whisker Testing (10)
Thermal Cycling Whisker Test
(-40°C to +85°C / 4000 cycles)
YES 
Ambient Temperature Storage, Whisker Test
(50°C, 4000 Hrs)
YES 
60°C/90%RH 4000 Hrs, Whisker Test
YES 
Automotive
AEC Q100 Qualified (14)
N/A 
Grade (11)
N/A 
AEC Q101 (22)
N/A 
PPAP Ready (15)
N/A 
IMDS Posted (16)
N/A 
Declarations and Reports
IPC-1752-2
Please consult with your Semtech Sales Rep 
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