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MAX662AC View Datasheet(PDF) - Maxim Integrated

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MAX662AC Datasheet PDF : 6 Pages
1 2 3 4 5 6
+12V, 30mA Flash Memory
Programming Supply
_____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 3a, TA = +25°C, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
LINE-TRANSIENT RESPONSE
A
A
0mA
0V
B
0V
B
1ms/div
A: OUTPUT CURRENT, 20mA/div, IOUT = 0mA to 30mA
B: OUTPUT VOLTAGE RIPPLE, 100mV/div, VCC = 5.0V
1ms/div
A: SUPPLY VOLTAGE, 2V/div, VCC = 4.5V to 5.5V, IOUT = 30mA
B: OUTPUT VOLTAGE RIPPLE, 200mV/div
_____________________Pin Description
PIN NAME
FUNCTION
1
C1-
Negative terminal for the first charge-
pump capacitor
2
C1+
Positive terminal for the first charge-
pump capacitor
3
C2-
Negative terminal for the second
charge-pump capacitor
4
C2+
Positive terminal for the second
charge-pump capacitor
5
VCC
Supply Voltage
6
VOUT
+12V Output Voltage. VOUT = VCC
when in shutdown mode.
7
GND Ground
Active-high CMOS-logic level
Shutdown Input. SHDN is internally
8
SHDN
pulled up to VCC. Connect to GND for
normal operation. In shutdown mode,
the charge pumps are turned off and
VOUT = VCC.
VCC
C4
4.7µF
C2+ S1
0.22µF
C2- S1
C1+
0.22µF
S1
C1-
S1
VCC
S2
ERROR
AMP
C3*
0.1µF
VOUT
R2
+12V
C5
4.7µF
R1
S2
VREF
SHDN
S2
MAX662A
OSCILLATOR
GND
SWITCH CLOSURES SHOWN FOR CHARGE PUMP IN THE TRANSFER MODE
* C3 NOT REQUIRED. FOR MAX662 ONLY.
Figure 1. Block Diagram
_______________________________________________________________________________________ 3
 

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