S-87X_1 Datasheet, PDF (36/53 Pages) Seiko Instruments Inc – HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION

HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series
Rev.7.2_00
Type 2 (Rectangle wave form 0 V to 10 V)
Input voltage
[5 V/div]
0V
10 V
I_OUT=40 mA, C_L=10 μF, Ta=25°C
Output voltage
[500 mV/div]
5 ms/div
Overshoot amount: 1300 mV
Undershoot amount: 610 mV
Figure 30 Ringing waveform (Type 2)
Table 21 Parameter dependency (Type 2)
Series
Parameter
S-8750xxx Load current (I_OUT)
Load capacitance (C_L)
Input fluctuation (ΔV_IN^*1)
Temperature (Ta)
S-8730xxx Load current (I_OUT)
Load capacitance (C_L)
Input fluctuation (ΔV_IN^*1)
Temperature (Ta)
*1. High voltage value − 0 V
Conditions
10 to 60 mA, C_L=10 μF
1 to 47 μF, I_OUT=40 mA
8 to 24 V
−40 °C to +85 °C
10 to 60 mA, C_L=10 μF
1 to 47 μF, I_OUT=40 mA
8 to 24 V
−40 °C to +85 °C
Method to decrease Method to decrease
overshoot
undershoot
Increase
Increase
Decrease
Decrease
Increase
Increase
Low temperature Low temperature
Increase
Increase
Decrease
Decrease
Increase
Increase
Low temperature Low temperature
For reference, the following pages describe the ringing in V_OUT measured using the output load current (I_OUT),
output load capacitance (C_L), input fluctuation width (ΔV_IN), and temperature (Ta) as parameters.
36
Seiko Instruments Inc.