ST1CC40PUR STMicroelectronics, ST1CC40PUR Datasheet - Page 3

• Manufacturer Part Number: ST1CC40PUR
• Description: IC CONV DC-DC 3A 4V 8-VFDFPN
• Manufacturer: STMicroelectronics

Specifications of ST1CC40PUR

• Constant Current: Yes
• Internal Driver: Yes
• Type - Primary: General Purpose
• Mounting Type: *
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Frequency: 700kHz ~ 1MHz
• Voltage - Supply: 3.5 V ~ 18 V
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Operating Temperature: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11137-2

ST1CC40
1
1.1
1.2
Pin settings
Pin connection
Figure 2.
Pin description
Table 1.
VFQFPN S08-BW
1
2
3
4
5
6
7
8
-
N.
Pin connection (top view)
Pin description
3
4
5
6
8
1
2
7
-
VINSW Power input voltage
AGND
PGND
Type
VINA
INH
SW
NC
FB
Unregulated DC input voltage
Inhibit control input. Logic low disables operation. Toggling this pin
with a periodic logic square wave of varying duty cycle at different
frequencies controls the brightness of LEDs. Do leave this pin
floating.
Feedback input. The control loop regulates the current in such a way
that the average voltage at the FB input is 100 mV (nominal). The
cathode of the LED and the sense resistor (R
LED current should be connected at this point. The LED current is
given by I
Ground
Regulator output switching pin
Power ground
Ground
Doc ID 18279 Rev 1
LED
= V
FB
/R
sns
Description
sns
) to ground to set the
Pin settings
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