MAX16005AUE+ Maxim Integrated, MAX16005AUE+ Datasheet - Page 19

• Manufacturer Part Number: MAX16005AUE+
• Description: Supervisory Circuits LLow-Voltage Quad-/Hex-/Octal-Voltage P Supervisors in TQFN
• Manufacturer: Maxim Integrated
• Series: MAX16000, MAX16001, MAX16002, MAX16003, MAX16004, MAX16005, MAX16006, MAX16007r

Specifications of MAX16005AUE+

• Number Of Voltages Monitored: 6
• Monitored Voltage: 1.8 V, 2.5 V, 3.3 V, Adjustable
• Undervoltage Threshold: 2.97 V, 2.25 V, 1.62 V, Adjustable
• Overvoltage Threshold: 1.71 V, 2.375 V, 3.135 V, Adjustable
• Output Type: Active Low, Open Drain
• Manual Reset: Resettable
• Watchdog: Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 280 ms
• Supply Voltage - Max: 5.5 V
• Chip Enable Signals: No
• Maximum Power Dissipation: 1349 mW
• Power Fail Detection: No
• Supply Current (typ): 50 uA
• Supply Voltage - Min: 1 V

Maxim Integrated
Figure 8. Window Detection
Figure 9. Output Response of Window Detector Circuit
INPUT
V
TH1
V
TH4
=
(
OUT1
OUT4
=
1 +
OUT
(
1 +
R1
R3
R1
R2
) (
R4
R3
R2
R4
)
V
V
TH
TH
+ V
TH_HYS
IN1
IN2
IN3
IN4
Low-Voltage, Quad-/Hex-/Octal-Voltage
)
MAX16000
MAX16001
∆V
V
GND
5V
CC
TH
OUT1
OUT2
OUT3
OUT4
V
V
TH1
TH4
OUT
These devices offer several monitor options with
adjustable input thresholds (see Table 1). The threshold
voltage at each adjustable IN_ input is typically 0.394V
(TOL = GND) or 0.372 (TOL = V
V
shown in Figure 10.
Large resistors can be used to minimize current through
the external resistors. For greater accuracy, use lower-
value resistors.
Connect any unused IN_ inputs to a voltage above its
threshold.
The OUT_ outputs go low when their respective IN_
inputs drop below their specified thresholds. The output
is open drain with a 30µA internal pullup to V
many applications, no external pullup resistor is required
to interface with other logic devices. An external pullup
resistor to any voltage from 0 to 5.5V overrides the inter-
nal pullup if interfacing to different logic supply voltages.
Internal circuitry prevents reverse current flow from the
external pullup voltage to V
Figure 10. Setting the Adjustable Input
MAX16000–MAX16007
INTH
, connect a resistive-divider network to the circuit as
(MAX16000/MAX16001/MAX16003/
V
R1 = R2 ((V
R1
R2
INTH
V
INTH
µP Supervisors
= V
TH
INTH
V
CC
MAX16004/MAX16006)
TH
((R1 / R2) + 1)
R1 = R2
(Figure 11).
CC
/ V
(
). To monitor a voltage
TH
Adjustable Input
V
V
INTH
TH
) - 1)
Unused Inputs
OUT_
- 1
)
Outputs
CC
. For
19