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Si88320 데이터시트 PDF




Silicon Laboratories에서 제조한 전자 부품 Si88320은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 Si88320 기능
기능 DUAL DIGITAL ISOLATORS
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Si88320 데이터시트, 핀배열, 회로
Si88x2x
DUAL DIGITAL ISOLATORS WITH DC-DC CONVERTER
Features
High-speed isolators with
Highly-reliable: 100 year lifetime
integrated dc-dc converter
High electromagnetic immunity and
Fully-integrated secondary sensing ultra-low emissions
feedback-controlled converter with RoHS compliant packages
dithering for low EMI
SOIC-20 wide body
dc-dc converter peak efficiency of SOIC-16 wide body
83% with external power switch Isolation of up to 5000 Vrms
Up to 5 W isolated power with High transient immunity of
external power switch
100 kV/µs (typical)
Options include dc-dc shutdown, AEC-Q100 qualified
frequency control, and soft start Wide temp range
Standard Voltage Conversion
–40 to +125 °C
3/5 V to isolated 3/5 V
24 V to isolated 3/5 V supported
Precise timing on digital isolators
0–100 Mbps
18 ns typical prop delay
Applications
Industrial automation systems
Hybrid electric and electric
vehicles
Isolated power supplies
Inverters
Data acquisition
Motor control
PLCs, distributed control systems
Safety Approval (Pending)
UL 1577 recognized
Up to 5000 Vrms for 1 minute
CSA component notice 5A
approval
VDE certification conformity
VDE0884-10
CQC certification approval
GB4943.1
Description
The Si88xx integrates Silicon Labs’ proven digital isolator technology with an
on-chip isolated dc-dc converter that provides regulated output voltages of
3.3 or 5.0 V (or >5 V with external components) at peak output power levels
of up to 5 W. These devices provide up to two digital channels. The dc-dc
converter has user-adjustable frequency for minimizing emissions, a soft-start
function for safety, a shutdown option and loop compensation. The device
requires only minimal passive components and a miniature transformer.
The ultra-low-power digital isolation channels offer substantial data rate,
propagation delay, size and reliability advantages over legacy isolation
technologies. Data rates up to 100 Mbps max are supported, and all devices
achieve propagation delays of only 23 ns max. Ordering options include a
choice of dc-dc converter features, isolation channel configurations and a fail-
safe mode. All products are certified by UL, CSA, VDE, and CQC.
Ordering Information:
See page 36.
Pin Assignments
See page 31
GNDP 1
RSN 2
ESW 3
VDDA 4
GNDA 5
VREGA 6
SH_FC 7
SS 8
A1 9
HF
XMTR
HF
RCVR
A2 10 HF
XMTR
HF
RCVR
Si88620
Patents pending
20 GNDB
19 VDDB
18 VREGB
17 NC
16 VSNS
15 COMP
14 NC
13 NC
12 B1
11 B2
Rev. 0.5 7/15
Copyright © 2015 by Silicon Laboratories
Si88x2x
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.




Si88320 pdf, 반도체, 판매, 대치품
Si88x2x
Table 2. Electrical Characteristics1 (Continued)
VIN = 24 V; VDDA = VDDP = 3.0 to 5.5 V (see Figure 2) for all Si8822x/32x; VDDA = 4.3 V (see Figure 3) for all Si8842x/62x;
TA = –40 to 125 °C unless otherwise noted.
Parameter
Symbol
Test Condition
Min Typ Max Unit
Line Regulation
VOUT(line)/VDDP
See Figure 2
ILOAD = 50 mA
VDDP varies from 4.5 to 5.5 V
1
mV/V
Load Regulation
VOUT(load)/VOUT
See Figure 2
ILOAD = 50 to 400 mA
0.1 %
Output Voltage
Ripple
Si8822x, Si8832x
Si8842x, Si8862x
ILOAD = 100 mA
See Figure 2
See Figure 3
100 mV p-p
Turn-on overshoot
VOUT(start)
See Figure 2
2%
CIN = COUT = 0.1 μF in
parallel with 10 μF,
ILOAD = 0 A
Continuous Output
Current
Si8822x, Si8832x
5.0 V to 5.0 V
3.3 V to 3.3 V
3.3 V to 5.0 V
5.0 V to 3.3 V
Si8842x, Si8862x
24.0 to 5.0 V
24.0 to 3.3 V
ILOAD(max)
See Figure 2
400
400
250
550
1000
1500
mA
Cycle-by-cycle aver-
age current limit
Si8822x, Si8832x
No Load Supply Cur-
rent IDDP
Si8822x, Si8832x
No Load Supply Cur-
rent IDDA
Si8822x, Si8832x
ILIM
IDDPQ_DCDC3
IDDAQ_DCDC4
See Figure 2
Output short circuited
See Figure 2
VDDP = VDDA = 5 V
See Figure 2
VDDP = VDDA = 5 V
3A
30 mA
5.7 mA
Notes:
1. Over recommended operating conditions as noted in Table 1.
2. VOUT = VSNS x (1 + R1/R2) + R1 x Ioffset
3. VDDP current needed for dc-dc circuits.
4. VDDA current needed for dc-dc circuits.
5. The nominal output impedance of an isolator driver channel is approximately 50 , ±40%, which is a combination of
the value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving loads
where transmission line effects will be a factor, output pins should be appropriately terminated with controlled
impedance PCB traces.
6. tPSK(P-P) is the magnitude of the difference in propagation delay times measured between different units operating at
the same supply voltages, load, and ambient temperature.
7. Start-up time is the time period from when the UVLO threshold is exceeded to valid data at the output.
4 Rev. 0.5

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Si88320 전자부품, 판매, 대치품
Si88x2x
Table 2. Electrical Characteristics1 (Continued)
VIN = 24 V; VDDA = VDDP = 3.0 to 5.5 V (see Figure 2) for all Si8822x/32x; VDDA = 4.3 V (see Figure 3) for all Si8842x/62x;
TA = –40 to 125 °C unless otherwise noted.
Parameter
Symbol
Test Condition
Min Typ Max Unit
Si88x22
mA
VDDA
VDDB
VDDA
VDDB
All inputs = 0
All inputs = 0
All inputs = 1
All inputs = 1
— 5.7
— 6.3
— 5.6
— 2.6
Notes:
1. Over recommended operating conditions as noted in Table 1.
2. VOUT = VSNS x (1 + R1/R2) + R1 x Ioffset
3. VDDP current needed for dc-dc circuits.
4. VDDA current needed for dc-dc circuits.
5. The nominal output impedance of an isolator driver channel is approximately 50 , ±40%, which is a combination of
the value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving loads
where transmission line effects will be a factor, output pins should be appropriately terminated with controlled
impedance PCB traces.
6. tPSK(P-P) is the magnitude of the difference in propagation delay times measured between different units operating at
the same supply voltages, load, and ambient temperature.
7. Start-up time is the time period from when the UVLO threshold is exceeded to valid data at the output.
Rev. 0.5
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