CAT661 Datasheet, PDF (2/16 Pages) Catalyst Semiconductor – High Frequency 100mA CMOS Charge Pump, Inverter/Doubler

CAT661
PIN CONFIGURATION
SO Package (S, X)
DIP Package (P)
TDFN Package (RD8, ZD8)
BOOST/FC 1
CAP+ 2
GND 3
CAP- 4
CAT661
8 V+
7 OSC
6 LV
5 OUT
BOOST/FC 1
CAP+ 2
GND 3
CAP- 4
CAT661
8 V+
7 OSC
6 LV
5 OUT
BOOST/FC 1
CAP+ 2
GND 3
CAP- 4
CAT661
8 V+
7 OSC
6 LV
5 OUT
PIN DESCRIPTIONS
(Top View)
TDFN Package: 4mm x 4mm
0.8mm maximum height
Circuit Configuration
Pin Number Name
1
Boost/FC
Inverter
Freqency Control for the internal oscillator.
With an external oscillator BOOST/FC has
no effect.
Boost/FC Oscillator Frequency
Doubler
Same as inverter.
Oscillator Frequency
Open
25kHz typical, 10kHz minimum 40kHz typical
V+
135kHz typical, 80kHz minimum ^{135kHz typical, 40kHz minimum}
2
CAP+ Charge Pump Capacitor. Positive terminal. Same as inverter.
3
GND Power Supply Ground.
Power supply. Positive voltage input.
4
CAP- Charge pump capacitor. Negative terminal. Same as inverter.
5
OUT Output for negative voltage.
Power supply ground.
6
LV
Low-Voltage selection pin. When the input LV must be tied to OUT for all input
voltage is less than 3V, connect LV to GND. voltages.
For input voltages above 3V, LV may be
connected to GND or left open. If OSC is
driven externally, connect LV to GND.
7
OSC ^{Oscillator control input. An external capacitor Same as inverter. Do not overdrive}
can be connected to lower the oscillator OSC in doubling mode. Standard logic
frequency. An external oscillator can drive levels will not be suitable. See the
OSC and set the chip operating frequency. applications section for additional
The charge-pump frequency is one-half the information.
frequency at OSC.
8
V+ Power supply. Positive voltage input.
Positive voltage output.
ORDERING INFORMATION
Part Number
CAT661EPA
CAT661ESA
CAT661ESA-TE13
CAT661EVA
CAT661EVA-TE13
CAT661ERD8
CAT661EZD8
Package
8 lead Plastic DIP
8-lead SO
8-lead SO, Tape & Reel
8-lead SO (Lead-free, Halogen-free)
8-lead SO (Lead-free, Halogen-free)
8-pad TDFN
8-pad TDFN (Lead-free, Halogen-free)
Temperature Range
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
Doc. No. 5003, Rev. J
2