MAX861CSA+ Maxim Integrated Products, MAX861CSA+ Datasheet - Page 9

• Manufacturer Part Number: MAX861CSA+
• Description: IC VOLT CONV SW-CAP 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Switched Capacitor (Charge Pump), Doubler, Invertingr

Specifications of MAX861CSA+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -1.5 ~ -5.5 V, 3 ~ 11 V
• Current - Output: 50mA
• Frequency - Switching: 13kHz, 100kHz, 250kHz
• Voltage - Input: 1.5 ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Output Voltage: - 1.5 V to - 5.5 V, 5 V to 11 V
• Output Current: 100 mA
• Maximum Power Dissipation: 471 mW
• Switching Frequency: 250 KHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

sure the sum of the currents drawn from the two out-
puts does not exceed 60mA. Connect LV as with a
standard inverter circuit (see Pin Description).
The MAX860/MAX861 can be used in sockets
designed for the MAX660, MAX665, and ICL7660 with
a minimum of one wiring change. This section gives
advice on installing a MAX860/MAX861 into a socket
designed for one of the earlier devices.
The MAX660, MAX665, and ICL7660 have an OSC pin
instead of
mal operation is with OSC floating (although OSC can
be overdriven). If OSC is floating, pin 7 (
be jumpered to V
permanently. Do not leave
MAX861 floating.
The MAX860/MAX861 operate with FC either floating or
connected to V
defines the oscillator frequency. Thus, any of the nor-
mal MAX660, MAX665, or ICL7660 connections to pin 1
will work with the MAX860/MAX861, without modifica-
tions. Changes to the FC connection are only required
if you want to adjust the operating frequency.
Figure 3. Combined Doubler and Inverter
C1
–
S
—
2
3
4
H
—
D
—
N
–
MAX860
MAX861
DD
. MAX660, MAX665, and ICL7660 nor-
_______________________________________________________________________________________
DD
C3
, OUT, or GND; each connection
Switched-Capacitor Voltage Converters
MAX660/MAX665/ICL7660
to enable the MAX860/MAX861
8
7
5
+V
IN
–
S
—
D1
Compatibility with
D2
H
—
D
—
D1, D2 = 1N4148
N
–
on the MAX860/
C2
C4
–
S
—
H
V
(V
—
V
OUT
OUT
D
FD1
—
50mA, Frequency-Selectable,
N
) - (V
–
= (2V
= -V
) should
IN
FD2
IN
) -
)
Table 5. Product Selection Guide
TRANSISTOR COUNT: 101
SUBSTRATE CONNECTED TO V
___________________Chip Topography
NUMBER
MAX660
MAX665
MAX860
MAX861
ICL7660
PART
GND
C1+
C1-
FC
CURRENT
OUTPUT
(mA)
100
100
50
50
10
(1.47mm)
0.058"
RESISTANCE
OUTPUT
DD
( )
6.5
6.5
12
12
55
V
SHDN
LV
OUT
DD
(2.13mm)
FREQUENCY
SWITCHING
0.084"
13/100/250
6/50/130
(kHz)
5/40
5/40
5
9