data brief for further information contact your local stmicroelectronics sales office. july 2008 rev 1 1/6 6 STEVAL-ISA020V1 3.5 w battery charger demonstration board based on the vipe r12as-e and tsm101 features input voltage: ?v in : 88 - 264 vac ? frequency: 50-60 hz output voltages: ?v out = 0 to 7 v ?i out = 0.5 a output signal: low battery check description the STEVAL-ISA020V1 battery charger demonstration bo ard utilizes an ac-dc single output converter with approximately 3.5 w of power capability. the simple and cost-effective design is based on the viper12as-e low power off-line smps primary switcher for power conversion, and the tsm101 voltage and current controller for monitoring the battery charge level. STEVAL-ISA020V1 www.st.com
circuit schematic and pcb layout STEVAL-ISA020V1 2/6 1 circuit schematic and pcb layout figure 1. schematic diagram + c 5 10u 1 0 u f 50 5 0 v k m e - + - + u 2 t s m 101 1 0 1 c d 1 7 6 8 4 3 2 5 r 1 0 1 k vr v r e f r 1 6 220 2 2 0 r v ou o u t c 6 100p 1 0 0 p f 500 5 0 0 v + c 2 4 . 7u 7 u f 400 4 0 0 v k m g v d d v+ v + d 3 ll414 l l 4 1 4 8 c 9 100n 1 0 0 n f r 9 1 k r 1 3 1 . 8 k c 1 1 100n 1 0 0 n f r 8 220 2 2 0 r r 5 10 1 0 r r 1 8 1 r r 3 100 1 0 0 r p2 p 2 n 1 u 3 a s f h 617 6 1 7 a-3 a - 3 1 2 r 2 0 22 2 2 r u 3 b s f h 617 6 1 7 a-3 a - 3 4 3 r 1 7 1 r t 1 c 9 . 7u 7 u h 9 t t u r n s 0 . 35 3 5 t ex-e e x - e 8 5 + c 4 220u 2 2 0 u f 35 3 5 v l xy x y + c 3 10u 1 0 u f 50 5 0 v k m e c 1 2 1n 1 n f 500 5 0 0 v y1 y 1 d 5 s t ps p s 160 1 6 0 a 60 6 0 v 1 a r 1 1 10 1 0 k l t 1 b 35u 3 5 u h 17 1 7 t t u r n s 0 . 18 1 8 c u l 4 3 v ou o u t t 1 a 3 . 1 m h e f 1 6 160 1 6 0 t t u r n s 0 . 18 1 8 c u l a l = 120n 1 2 0 n h g ap a p = 0 . 22 2 2 m m 1 2 n c 8 22n 2 2 n f p5 p 5 c ha h a r g e 1 l 1 330u 3 3 0 u h 190 1 9 0 m a bc b c r 1 10 1 0 r 3 w c 1 0 100n 1 0 0 n f d 2 ll414 l l 4 1 4 8 d 7 ll414 l l 4 1 4 8 p1 p 1 l 1 + c 1 4 . 7u 7 u f 400 4 0 0 v k m g vr v r e f ~ ~ + - d 1 s 25 2 5 0 0 . 5 a 250 2 5 0 vac v a c r 1 5 220 2 2 0 r p3 p 3 0 .. . . 6 . 9 v / 0 . 5 a 1 p4 p 4 g n d 1 + c 1 3 10u 1 0 u f 50 5 0 v k m e r 1 4 820 8 2 0 r t 1 d 3 . 0u 0 u h 5 t t u r n s 0 . 35 3 5 t ex-e e x - e 6 7 r 1 2 8 . 2 k u 1 v i p e r 12 1 2 as a s 4 3 1 2 5 6 7 8 v d d f b s ou o u r c e 1 s ou o u r c e 2 d r a i n 1 d r a i n 2 d r a i n 3 d r a i n 4 r 2 1 4 . 7 k 88 8 8 ... . . . 264 2 6 4 v~ v ~ am00644v1
STEVAL-ISA020V1 circuit schematic and pcb layout 3/6 figure 2. pcb layout (solder side) figure 3. assembly (top)
circuit schematic and pcb layout STEVAL-ISA020V1 4/6 figure 4. assembly (bottom)
STEVAL-ISA020V1 revision history 5/6 2 revision history table 1. document revision history date revision changes 07-jul-2008 1 initial release.
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