ADM6819ARJZ-REEL7

ADM6819/ADM6820
Rev. 0 | Page 4 of 12
TIMING DIAGRAMS
V
CC2
V
CC2
OUT
Q1
GATE
LOGIC
V
CC2
V
FET
SETV
EN
0.618V
0.618V
GND
R1
R2
R3
R4
V
CC1
ADM6819
V
CC1
V
CC1
FET
DRIVER
CHARGE
PUMP
UVLO
05133-014
Figure 2. ADM6819 Solution for Validating Two Supplies Before Sequencing
V
SETV
10% 10%
90%
0.618V
V
CC2
+ 5.5V (typ)
V
GATE
t
OFF
t
DELAY
(ADM6819 = 300ms,
ADM6820 = ADJ)
t
ON
05133-015
Figure 3. ADM6819/ADM6820 Timing Diagram Using SETV for Sequencing
V
EN
V
SETV
10% 10%
90%
0.618V
0.618V
V
CC2
+ 5.5V (typ)
V
GATE
t
OFF
t
DELAY
(300ms)
t
ON
0
5133-016
Figure 4. ADM6819 Timing Diagram Using EN and SETV for Sequencing
ADM6819/ADM6820
Rev. 0 | Page 5 of 12
V
OUT
= 3.0V
Q2
GATE
V
CC2
SETV
EN/SETD
GND
R3
R4
V
CC1
ADM6819/
ADM6820
V
OUT
= 3.3V
V
IN
= 3.0V
Q1
GATE
V
CC2
SETV
EN/SETD
GND
R1
R2
V
CC1
ADM6819/
ADM6820
V
IN
= 3.3V
V
OUT
= 5
V
V
IN
= 5
V
05133-017
Figure 5. ADM6819/ADM6820 Solution for Sequencing Three Supply Rails
ADM6819/ADM6820
Rev. 0 | Page 6 of 12
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Rating
V
CC1
, V
CC2
−0.3 V to +6.0 V
SETV, SETD, EN −0.3 V to +30 V
GATE −0.3 V to (V
CCx
+ 11 V)
Storage Temperature −65°C to +150°C
Operating Temperature Range −40°C to +85°C
Lead Temperature (Soldering 10 sec) 300°C
Junction Temperature 150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL CHARACTERISTICS
θ
JA
is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3. Thermal Resistance
Package Type θ
JA
Unit
6-Lead SOT-23 169.5 °C/W
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.

ADM6819ARJZ-REEL7

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Supervisory Circuits FET Drive w/ Fixed 200ms Delay
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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