HC5520 查看數據表（PDF） - Intersil
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HC5520 Datasheet PDF : 20 Pages
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HC5520
Test Information
TIP
VTIP
VRING
RING
RTPS
100kΩ
50Ω
RPT
RPR
50Ω
100kΩ
RRGS
TIPSEN
RX
TIP
HC5520
RING
TX
RINGSEN
TX4W
RX
CVRX
0.47µF
100kΩ
VRX
ICC
VCC
IEE
VEE
IBB
CVTX VBAT
0.47µF
VTX
100kΩ
R4W
FIGURE 4. POWER SUPPLY CURRENT AND TIP AND RING VOLTAGE TEST CIRCUIT
PARAMETER
Power Supply Current, ICC
Power Supply Current, IEE
Power Supply Current, IBB
VTIP
VRING
INPUT
VCC = +4.75 ~ +5.25V
VEE = -4.75 ~ -5.25V
VBAT = -42 ~ -58V
VBAT
VBAT
MEASUREMENT
ICC Direct Measurement
IEE Direct Measurement
IBB Direct Measurement
VTIP Direct Measurement
VRING Direct Measurement
SPECIFICATIONS
ICC
IEE
IBB
VTIP
VRING
IL
RL
TIP
VTR
RING
RTPS
100kΩ
50Ω
RPT
RPR
50Ω
100kΩ
RRGS
TIPSEN
TIP
RX
HC5520
RING
TX
RINGSEN
TX4W
RX
CVRX
0.47µF
100kΩ
VRX
CVTX
0.47µF
VTX
100kΩ
R4W
FIGURE 5. LOOP CURRENT TEST CIRCUIT
PARAMETER
Loop Current, IL
Short Circuit Loop Current
INPUT
VBAT and RL
VBAT = -48V and RL = 100Ω
MEASUREMENT
VTR
VTR
SPECIFICATIONS
IL = VTR/RL
IL = VTR/RL
9
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