9-Set Over Voltage Protector
Copyright  ANPEC Electronics Corp.
Rev. A.3 - Dec., 2002
APX1690
www.anpec.com.tw1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Features General Description
The APX1690 is a precise 9-Set over voltage protector.
The trigger voltages of IN1 to IN4 are internally set to
detect the 7.0V, 4.5V, 4.0V and 3.0V, respectively.
The trigger voltage of IN5 to IN9 can be set by using
external resistor divider with the internal reference
voltage (1.5V). The APX1690 offers 2% voltage set-
ting accuracy over temp, and an ultra low ground
current 40µA(max). The ground current is reduced
to 30µA(max) when an over voltage happened and
output is latched. Both complementary outputs (OUT
and OUT) are latched when an over voltage is de-
tected in either input. An external active high on re-
set pin can be used to reset the latch. A compact
package QSOP-16 is available for space saving
purpose.
Applications
• Note Book Computer
• Multiple Supply System
• 9-Set Voltage Monitors (4 Fixed Inputs for 7.0V,
4.5V, 4.0V and 3.0V, 5 Adjustable Inputs with 1.
5V Internal Reference)
• Input Voltage Range of 2~5V (Good for RTC
Battery)
• Complementary Output to Drive 2N7002
• Outputs with Latch
• Quiescent Supply Current : 40µA
• Quiescent Supply Current : 30µA When Output
Latch
• VREF=1.5V±2.0% Over Temp
Pin Configuration
°
IN1(7.0V)
OUT
OUT
Reset
IN9
IN8
NC
1
2
3
4
5
6
7
8
12
11
10
9
13
14
15
16 VCC
GND
IN2(4.5V)
IN3(4.0V)
IN4(3.0V)
IN5
IN6
IN7
NC
APX1690 (QSOP -16)