Rainbow Electronics MAX6764 User Manual

General Description

The MAX6754–MAX6764 low-power window detectors monitor undervoltage/overvoltage conditions on system power supplies. These devices assert when the monitored voltage is under the undervoltage and/or over the overvoltage thresholds.

The MAX6754–MAX6759/MAX6763/MAX6764 monitor a single voltage. The MAX6760/MAX6761/MAX6762 monitor dual-voltage systems. The MAX6754/MAX6755/ MAX6756 provide a single undervoltage/overvoltage output and the MAX6757–MAX6764 provide independent undervoltage and overvoltage outputs. The outputs are available in push-pull or open-drain configurations.

The MAX6754–MAX6762 offer factory-fixed voltage thresholds for monitoring system voltages from 0.9V to 5V with a selectable ±5%, ±10%, or ±15% window voltage. The MAX6763/MAX6764 allow for externally adjustable thresholds. The MAX6754–MAX6762 are available in two delay timing options (20µs, typ or 100ms, min). The MAX6760/MAX6761/MAX6762 also include a latched overvoltage output function and the MAX6754–MAX6762 include a manual reset input.

The family of products is available in small SOT23 and TDFN packages and is specified over the extended temperature range of -40°C to +125°C.

Applications

Features

♦ Single- or Dual-Supply Voltage Monitors

♦ Factory-Trimmed Window Threshold Options for

5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V, 1.2V, and 0.9V Supplies

♦ Externally Adjustable Window Monitoring Options

for Supplies Down to 0.5V

♦ Selectable Window Threshold Options (±5%,

±10%, ±15%)

♦ Single (Combined UV/OV) or Dual (Separate UV

and OV) Outputs

♦ 20µs (typ) or 100ms (min) Timeout Period Options

(MAX6754–MAX6762)

♦ Manual Reset Input (MAX6754–MAX6762)

♦ Latched Overvoltage Output Function

(MAX6760/MAX6761/MAX6762)

♦ Immune to Short Voltage Transients

♦ Low 10µA Supply Current

♦ Low-Voltage Operation (Outputs Valid for V

Down to 1V)

♦ -40°C to +125°C Operating Temperature Range

♦ Small SOT23 and TDFN Packages

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window

Detectors

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

MAX6757

NMI

RESETMR

GND

SET

µP

Typical Application Circuit

19-3031; Rev 0; 10/03

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

*Note: Insert the threshold level suffixes for VCCand V

CC2

(Tables 1 and 2) after UK, UT, or TA. For the MAX6754–MAX6759, insert only the VCCthreshold suffix after the UK or UT. Insert the reset timeout delay (Table 3) after D to complete the part number. For example, the MAX6760TALTD3-T provides a V

threshold of 5V, a V

CC2

threshold of 3.3V, and a 100ms minimum reset timeout period. Sample stock is generally held on standard versions only (see the Standard Versions

table). Standard versions have an order increment requirement

of 2500 pieces. Nonstandard versions have an order increment requirement of 10,000 pieces. Contact factory for availability.

Ordering Information continued at end of data sheet.

Pin Configurations appear at end of data sheet.

Telecommunications

Networking

Computers/Servers

Data Storage

Power Metering

DC-DC Converter Modules

Automotive

PART* TEMP RANGE PIN-PACKAGE

MAX6754UK_D_-T -40°C to +125°C 5 SOT23-5

MAX6755UK_D_-T -40°C to +125°C 5 SOT23-5

MAX6756UK_D_-T -40°C to +125°C 5 SOT23-5

MAX6757UT_D_-T -40°C to +125°C 6 SOT23-6

MAX6758UT_D_-T -40°C to +125°C 6 SOT23-6

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window Detectors

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= 1.0V to 6.0V, V

CC2

= 0 to 6.0V (MAX6760–MAX6762), TA= -40°C to +125°C, unless otherwise noted. Typical values are at TA=

+25°C.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

(Voltages with respect to GND) V

, V

CC2

, ............................................................-0.3V to +6.5V

SET, OVLATCH, MR, UVIN, OVIN ..............-0.3V to (V

+ 0.3V)

UV, RESET, OV (open drain) .................................-0.3V to +6.5V

RESET, OV, UV, UV, RESET (push-pull).....-0.3V to (V

+ 0.3V)

Input/Output Current (all pins) ............................................20mA

Continuous Power Dissipation (T

= +70°C)

5-Pin SOT23-5 (derate 7.1mW/°C above T

= +70°C)....571mW

6-Pin SOT23-6 (derate 8.7mW/°C above T

= +70°C)....696mW

8-Pin TDFN (derate 24.4mW/°C above T

= +70°C).....1951mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

POWER REQUIREMENTS

Operating Voltage Range V

VCC Supply Current I

Supply Current

CC2

Adjustable Bias Current

THRESHOLD

VCC Overvoltage Threshold OV

(Note 2) 1.0 6.0

MAX6760TAAA/MAX6761TAAA/ MAX6762TAAA/MAX6763/MAX6764UT-T

VCC = 3.6V, MAX6754–MAX6759, no load 13 30

VCC = 3.6V, MAX6763/MAX6764, no load 10 23

VCC = 3.6V, VCC ≥ V

CC2

MAX6760/MAX6761/MAX6762, no load

CC2

= 1.8V, VCC ≥ V

CC2

MAX6760/MAX6761/MAX6762

(MAX6760–MAX6762TA_AD_)

CC2

(Note 3)

= V

SET

L, 5V

SET = V

SET = GND 5.250 5.375 5.500

= V

SET

SET = V

SET = GND 3.465 3.548 3.630

= V

SET

= V

TA = -40°C to +125°C, rising V

R, 3.0V

Z, 2.5V

SET = V

SET = GND 3.150 3.225 3.300

SET = V

SET = GND 2.625 2.688 2.750

= V

SET

W, 1.8V

SET = V

SET = GND 1.890 1.935 1.980

1.4 6.0

13 30

1 1.5 µA

-20 +20 nA

5.750 5.875 6.000

5.500 5.625 5.750

3.795 3.878 3.960

3.630 3.713 3.795T, 3.3V

3.450 3.525 3.600

3.300 3.375 3.450

2.875 2.938 3.000

2.750 2.813 2.875

2.070 2.115 2.160

1.980 2.025 2.070

µA

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window

Detectors

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= 1.0V to 6.0V, V

CC2

= 0 to 6.0V (MAX6760–MAX6762), TA= -40°C to +125°C, unless otherwise noted. Typical values are at TA=

+25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

VCC Undervoltage Threshold UV

Overvoltage Threshold OV

CC2

L, 5V

TA = -40°C

to +125°C, falling V

R, 3.0V

W, 1.8V

T, 3.3V

W, 1.8V

TA = -40°C to +125°C,

TH2

rising V

CC2

G, 1.2V

ADJ

= V

SET

SET = V

4.000 4.125 4.250

4.250 4.375 4.500

SET = GND 4.500 4.625 4.750

= V

SET

SET = V

2.640 2.723 2.805

2.805 2.888 2.970T, 3.3V

SET = GND 2.970 3.053 3.135

= V

SET

SET = V

2.400 2.475 2.550

2.550 2.625 2.700

SET = GND 2.700 2.775 2.850

= V

SET

SET = V

2.000 2.063 2.125

2.125 2.188 2.250Z, 2.5V

SET = GND 2.250 2.313 2.375

= V

SET

SET = V

1.440 1.485 1.530

1.530 1.575 1.620

SET = GND 1.620 1.665 1.710

= V

SET

SET = V

3.795 3.878 3.960

3.630 3.713 3.795

SET = GND 3.465 3.548 3.630

= V

SET

SET = V

3.450 3.525 3.600

3.300 3.375 3.450R, 3.0V

SET = GND 3.150 3.225 3.300

= V

SET

SET = V

2.875 2.938 3.000

2.750 2.813 2.875Z, 2.5V

SET = GND 2.625 2.688 2.750

= V

SET

SET = V

2.070 2.115 2.160

1.980 2.025 2.070

SET = GND 1.890 1.935 1.980

= VSB (Note 2) 1.725 1.763 1.800

SET

SET = VCC (Note 2) 1.650 1.688 1.725I, 1.5V

SET = GND (Note 2) 1.575 1.613 1.650

= VSB (Note 2) 1.380 1.410 1.440

SET

SET = VCC (Note 2) 1.320 1.350 1.380

SET = GND (Note 2) 1.260 1.290 1.320

= VSB (Note 2) 1.035 1.058 1.080

SET

SET = VCC (Note 2) 0.990 1.013 1.035E, 0.9V

SET = GND (Note 2) 0.945 0.968 0.990

= V

SET

SET = V

0.489 0.500 0.511

0.468 0.479 0.489

SET = GND 0.447 0.457 0.468

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window Detectors

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

= 1.0V to 6.0V, V

CC2

= 0 to 6.0V (MAX6760–MAX6762), TA= -40°C to +125°C, unless otherwise noted. Typical values are at TA=

+25°C.) (Note 1)

Threshold Hysteresis V

UNDERVOLTAGE/OVERVOLTAGE INPUTS (UVIN, OVIN) (MAX6763/MAX6764)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Undervoltage Threshold UV

CC2

TA = -40°C to +125°C,

TH2

falling V

HYSTVCC

, V

CC2

T, 3.3V

Z, 2.5V

G, 1.2V

ADJ

= V

SET

SET = V

SET = GND 2.970 3.053 3.135

= V

SET

SET = V

SET = GND 2.700 2.775 2.850

= V

SET

SET = V

SET = GND 2.250 2.313 2.375

= V

SET

SET = V

SET = GND 1.620 1.665 1.710

= VSB (Note 2) 1.200 1.238 1.275

SET

SET = VCC (Note 2) 1.275 1.313 1.350I, 1.5V

SET = GND (Note 2) 1.350 1.388 1.425

= VSB (Note 2) 0.960 0.990 1.020

SET

SET = VCC (Note 2) 1.020 1.050 1.080

SET = GND (Note 2) 1.080 1.110 1.140

= VSB (Note 2) 0.720 0.743 0.765

SET

SET = VCC (Note 2) 0.765 0.788 0.810E, 0.9V

SET = GND (Note 2) 0.810 0.833 0.855

= V

SET

SET = V

SET = GND 0.383 0.394 0.404

2.640 2.723 2.805

2.805 2.888 2.970

2.400 2.475 2.550

2.550 2.625 2.700R, 3.0V

2.000 2.063 2.125

2.125 2.188 2.250

1.440 1.485 1.530

1.530 1.575 1.620W, 1.8V

0.340 0.351 0.362

0.362 0.372 0.383

0.7 %

UVIN, OVIN Threshold Voltage V

UVIN, OVIN Input Bias Current I

UVIN, OVIN Threshold Hysteresis

TH-IN

HYST

0.4875 0.5 0.5125 V

-10 +10 nA

0.7 %

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window

Detectors

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

= 1.0V to 6.0V, V

CC2

= 0 to 6.0V (MAX6760–MAX6762), TA= -40°C to +125°C, unless otherwise noted. Typical values are at TA=

+25°C.) (Note 1)

TIMING CHARACTERISTICS

Reset and UV Timeout Period t

VCC to Reset Delay t

VCC to UV Delay t

VCC to OV Delay t

UVIN to UV Delay (MAX6763/MAX6764) 20 µs

OVIN to OV Delay (MAX6763/MAX6764) 20 µs

Startup Delay Time t

THRESHOLD WINDOW SELECT INPUT (SET)

Input Voltage Low 0 0.1 V

Input Bias Voltage (Note 5)

Input Voltage High VCC - 0.1 V

Input Current I

MANUAL RESET (MR)

Input Voltage Low

Input Voltage High

Pullup Resistance to V

Minimum Pulse Width 4µs

Transient Immunity 300 ns

Propagation Delay

OVERVOLTAGE OUTPUT LATCH CONTROL INPUT (OVLATCH)

Input Voltage Low

Input Voltage High

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

D0 20 µs

D3 100 185 320 ms

20 µs

-1 +1 µA

0.23 x V

0.6 x V

26 kΩ

D0 40

D3 100 185 320 ms

0.3 x V

0.7 x V

D-RESET

D-UV

D-OV

START

SET

D-MR

MR_P

Figure 7

VCC/V UV

VCC/V OV

VCC/V OV (MAX6757–MAX6762 only)

D0 options only, OV output (Note 4) 2 ms

VCC = 1.4V 0.65 0.75

VCC = 3.0V 0.81 2.19

VCC = 6.0V 1.10 4.90

MR falling, Figure 7 300

MR rising, Figure 7

falling at 10mV/µs from

CC2

+ 100mV to UVTH - 100mV

rising at 10mV/µs from

CC2

- 100mV to OVTH + 100mV

rising at 10mV/µs from

CC2

- 100mV to OVTH + 100mV

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window Detectors

6 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

= 1.0V to 6.0V, V

CC2

= 0 to 6.0V (MAX6760–MAX6762), TA= -40°C to +125°C, unless otherwise noted. Typical values are at TA=

+25°C.) (Note 1)

Input Bias Current I

RESET, RESET, UV, UV, OV

RESET, UV Output Low (Open Drain or Push-Pull)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RESET, UV Output High (Push-Pull)

RESET, UV Output Low (Push-Pull)

RESET, UV Output High (Push-Pull)

OVLATCH

Any VCC ≥ 1.0V, I output asserted

Any VCC ≥ 1.2V, I output asserted

Any VCC ≥ 1.71V, I output asserted

Any VCC ≥ 2.85V, I output asserted

Any VCC ≥ 4.75V, I output asserted

Any VCC ≥ 1.71V, I output deasserted

Any VCC ≥ 2.85V, I output deasserted

Any VCC ≥ 4.75V, I output deasserted

Any VCC ≥ 1.71V, I output deasserted

Any VCC ≥ 2.85V, I output deasserted

Any VCC ≥ 4.75V, I output deasserted

Any VCC ≥ 1.0V, I output asserted

Any VCC ≥ 1.2V, I output asserted

Any VCC ≥ 1.71V, I output asserted

Any VCC ≥ 2.85V, I output asserted

Any VCC ≥ 4.75V, I output asserted

= 100µA,

SINK

= 200µA,

SINK

= 1.0mA,

SINK

= 2.0mA,

SINK

= 4.0mA,

SINK

SOURCE

= 1.0mA,

SINK

= 2.0mA,

SINK

= 4.0mA,

SINK

SOURCE

= 0.8mA,

= 2.0mA,

= 4.0mA,

= 50µA,

= 100µA,

= 0.8mA,

= 2.0mA,

= 4.0mA,

-1 +1 µA

0.8 x V

0.3

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window

Detectors

_______________________________________________________________________________________ 7

ELECTRICAL CHARACTERISTICS (continued)

= 1.0V to 6.0V, V

CC2

= 0 to 6.0V (MAX6760–MAX6762), TA= -40°C to +125°C, unless otherwise noted. Typical values are at TA=

+25°C.) (Note 1)

Note 1: Devices are production tested at +25°C. Overtemperature limits are guaranteed by design. Note 2: Voltage monitoring requires that V

must be greater than or equal to 1.4V, but outputs remain asserted in the correct

state for V

down to 1.0V.

Note 3: Guaranteed by design. Note 4: For D0 window detector options and OV outputs, startup delay time is the time required for the internal reference/circuitry

to reach specified accuracy after the monitor is powered up from GND.

Note 5: The input bias voltage is based off of V

. The minimum value is given by the equation (0.1 x V

+ 0.51)V and the maxi-

mum value is given by (0.9 x V

- 0.51)V.

OV Output Low (Open-Drain or Push-Pull)

OV Output High (Push-Pull)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Any VCC ≥ 1.98V, I output asserted

Any VCC ≥ 2.75V, I

output asserted

Any VCC ≥ 3.63V, I output asserted

Any VCC ≥ 5.5V, I output asserted

Any VCC ≥ 1.0V, I output deasserted

Any VCC ≥ 1.2V, I output deasserted

Any VCC ≥ 1.98V, I output deasserted

Any VCC ≥ 2.75V, I output deasserted

Any VCC ≥ 3.63V, I output deasserted

Any VCC ≥ 5.5V, I output deasserted

SINK

SOURCE

= 1.4mA,

= 2.0mA,

= 3.0mA,

= 4.0mA,

= 50µA,

= 100µA,

= 1.4mA,

= 2.0mA,

= 3.0mA,

= 4.5mA,

0.8 x V

0.3

RESET, UV, OV Output OpenDrain Leakage Current

LKG

Output not asserted 1 µA

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