the si85xx unidirectional ac current sensor development kit contains one of
图5。si85xx20aqn-tb 1 kv, 20 amp 目标板外形图

图6。si85xx tb目标板电路图(1 kv, 10 a目标板)

si85xx tb目标板材料清单(1 kv, 10 a目标板)：


图7。si85xx5kv- tb目标板电路图(5 kv, 10 a目标板)
si85xx5kv- tb目标板材料清单（5 kv, 10 a目标板)：



图8。si85xx目标板电路图(1 kv, 20 a目标板)
si85xx20aqfn - tb目标板材料清单（1 kv, 20 a目标板)：
si85xx主要特性：

single-chip ac current sensor

low loss: <1.3 mohm primary series resistance and <2 nh inductance

leading-edge noise suppression eliminates need for leading-edge blanking

"ping-pong" output version allows one si85xx to replace two current transformers in full-bridge designs

5, 10, and 20 a full-scale versions

±5% initial accuracy

50 khz to 1 mhz input frequency range

fault output to safeguard operation

large 2 vpp min output at full scale

high-side or low-side current sensing

compact 4x4x1 mm qfn package (1 kvrms isolation)

20-pin wide-body soic (5 kvrms isolation)

–40 to 125℃ operating range

ul/vde/csa approval

si85xx应用：

power supplies

motor controls

lighting equipment

industrial equipment

图1。si85xx 系列功能方框图

图2。si850x 单相降压转换器

图3。si851x 全桥转换器

图4。si851x 采用默认tr值的推挽应用案例