MAX685EEE+T Maxim Integrated Products, MAX685EEE+T Datasheet - Page 3

• Manufacturer Part Number: MAX685EEE+T
• Description: IC DC-DC CONV DUAL OUT 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost), Invertingr

Specifications of MAX685EEE+T

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: -9 ~ 24 V
• Current - Output: 10mA
• Frequency - Switching: 220kHz, 400kHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 667mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
ELECTRICAL CHARACTERISTICS
(V
Note 1: Negative output voltage can be larger magnitude for lower values of V
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
SYNC INPUT
Sync Frequency Range (external)
Oscillator Frequency (internal)
POK COMPARATORS
FBP POK Threshold
FBN POK Threshold
POK Output Low Voltage
POK Output Off Current
Input Voltage Range
Positive Output Voltage Range
Negative Output Voltage Range
Maximum Output Current
Idle Quiescent Current
SHUTDOWN
Shutdown Supply Current
UNDERVOLTAGE LOCKOUT
UVLO Threshold
FB INPUTS AND REFERENCE VOLTAGE
FBP Threshold Voltage
FBN Threshold Voltage
VREF Output Voltage
LOGIC INPUTS (SEQ, SHDN, SYNC)
Logic-Low Input
Logic-High Input
POK COMPARATORS
FBP POK Threshold
FBN POK Threshold
DD
DD
, VP = 5V, T
= VP = 5V, T
exceed 14.5V.
PARAMETER
PARAMETER
A
A
= -40°C to +85°C unless otherwise noted.) (Note 2)
= 0°C to +85°C unless otherwise noted. Typical values are at T
_______________________________________________________________________________________
Dual-Output (Positive and Negative),
DC-DC Converter for CCD and LCD
SYNC = GND
SYNC = V
FBP rising
FBN falling
I
V
V
V
V
Figure 3
SYNC = GND
SYNC = SEQ = SHDN = GND
V
No load
No load
No load
2.7V < V
2.7V < V
FBP rising
FBN falling
POK
POK
DD
DD
IN
DD
= 4.5V, V
= VP
= 5.5V (Note 1)
= rising
= 2mA
= 10V
DD
DD
DD
≤ 5.5V
≤ 5.5V
OUT+
≥ 14.25V, V
CONDITIONS
CONDITIONS
OUT-
≤ -7.125V,
DD
. The voltage between V
A
= +25°C.)
0.7 x V
1.090
1.205
1.225
1.090
2.35
MIN
MIN
200
175
320
2.7
-20
VP
54
10
54
-9
DD
DD
1.122
TYP
220
400
79
and V
0.3 x V
OUT-
1.150
1.275
1.275
1.150
MAX
MAX
-1.27
2.65
480
265
480
108
500
108
0.4
5.5
24
10
40
1
DD
must not
UNITS
UNITS
kHz
kHz
mV
mA
mV
mV
µA
µA
µA
V
V
V
V
V
V
V
V
V
V
V
3