S-87X_1 Datasheet, PDF (34/53 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 1 (Rectangle wave between (V_OUT+1) V and 10 V)
I_OUT=40 mA, C_L=10 μF, Ta=25°C
10 V
Input voltage
[1 V/div]
(V_OUT+1) V
Output voltage
[200 mV/div]
Overshoot amount: 350 mV
Undershoot amount: 325 mV
5 ms/div
Figure 29 Ringing waveform (Type 1)
Table 20 Parameter dependency (Type 1)
Series
Parameter
Conditions
S-8750xxx Load current (I_OUT)
10 to 60 mA, C_L=10 μF
Load capacitance (C_L) 1 to 47 μF, I_OUT=40 mA
Input fluctuation (ΔV_IN^*1) 2 to 4 V
4 to 18 V
Temperature (Ta)
−40 °C to +85 °C
S-8730xxx Load current (I_OUT)
10 to 60 mA, C_L=10 μF
Load capacitance (C_L) 1 to 47 μF, I_OUT=40 mA
Input fluctuation (ΔV_IN^*1) 4 to 20 V
Temperature (Ta)
−40 °C to +85 °C
*1. High voltage value − low voltage value
Method to decrease Method to decrease
overshoot
undershoot
Decrease
Decrease
Increase
Increase
Decrease
Decrease
Increase
Decrease
Low temperature Low temperature
Increase
Decrease
Increase
Increase
Increase
Decrease
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.
34
Seiko Instruments Inc.