TA1307P Datasheet, PDF (2/12 Pages) Toshiba Semiconductor – Integrated Circuit For Standby Power-Supply Control

TA1307P
Stand Power Supply Application Circuit Example (voltage detection by 2nd side)
8
7
6
5
Pulse output Output stop
Band
OSC
0.2 V
gap
3 V (pulse output stop)
/2.5 V (pulse output start)
UVLO
7 V/5 V
Standby ON/OFF
UVLO
V_out
12 V Latch
1
2
3
4
0.01 mF
0.01 mF
20 mF
Hi: Standby OFF mode
…IC not active
Pin2 (OSC establish)
Low: Standby ON mode (OVLO off) …IC active
Outside resistance use ±2% _{Open: Standby ON mode (OVLO on) …IC active}
FB IN
3 V (fix)
2.5 V (fix)
= Upper limit DC for FB comparator
= Lower limit DC for FB comparator
PULSE
Output
OSC Wave
expansion
PULSE
Output
FB IN
(V_out)
Figure 1 Movement Explain
2
2002-02-12