CS4121EDWFR20G ON Semiconductor, CS4121EDWFR20G Datasheet - Page 9

• Manufacturer Part Number: CS4121EDWFR20G
• Description: IC TACH/SPEEDO DRIVER 20-SOIC
• Manufacturer: ON Semiconductor
• Type: Sensor Interfacer

Specifications of CS4121EDWFR20G

• Input Type: Voltage
• Output Type: Differential
• Current - Supply: 125mA
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Operating Current: 125mA
• Operating Temperature Classification: Industrial
• Package Type: SOIC W
• Operating Supply Voltage (min): 8V
• Operating Supply Voltage (typ): 13.1V
• Operating Supply Voltage (max): 16V
• Operating Supply Voltage: 13.1 V
• Supply Current: 125 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Compliant

Speedo Input
GND
Battery
600 PIV
1.0 A
D1
Notes:
1. For 58% Speed Input T
2. The product of C4 and R
3. C
4. R
5. The Ic must be protected from transients above 60 V and reverse battery conditions.
6. Additional filtering on FREQ
7. Gauge coil connections to the IC must be kept as short as possible ( 3.0 inch) for best pointer stability.
R3
500 mW
T
CP
Range; 100 kW to 500 kW.
3.9,
3.0 kW
R1
Range; 20 pF to 0.2 mF.
10 kW
R2
30 PPM/ C
0.0033 mF
C3
D2
50 V,
500 mW
Zener
Figure 9. Speedometer or Tachometer Application
C
CP
T
f
MAX
0.1 mF
MAX
MAX
T
0.1 mF
have a direct effect on gain and therefore directly affect temperature compensation.
= maximum speed input frequency
IN
= C
5.0/f
1.0 kW
lead may be required.
CP
R4
C1
MAX
(R3 + R4)
http://onsemi.com
COSINE
where
CS4121
1
9
CP+
SQ
FREQ
GND
GND
COS+
COS−
V
CC
OUT
Air Core
Gauge
IN
200 W
F/V
SINE+
SINE−
V
GND
GND
BIAS
CP−
REG
OUT
SINE
Speedometer
C4
+
0.47 mF
R
T
Trim Resistor
20 PPM/ C
243 kW