HA17384SPS Datasheet, PDF (21/29 Pages) Hitachi Semiconductor – High Speed Current Mode PWM Control IC for Switching Power Supply

HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
100
V_IN = 15V, Ta = 25°C
75
50
Gain A_VO
Unit gain frequency
25
f_T = 1MHz Typ
0
0
60
−25
10
Phase Φ
Phase margin
at f_T
Φ_O = 60° Typ
100
1k
10k
100k
1M
Error Amplifier Input Signal Frequency f (Hz)
120
180
10M
Figure 10 Open Loop Gain Characterisrics of Error Amplifier
Rev.3.00 Jun 15, 2005 page 21 of 28