E522.31_16 Datasheet, PDF (3/20 Pages) ELMOS Semiconductor AG – CHANNEL SWITCHED MODE CONSTANT CURRENT CONTROLLER

1 CHANNEL SWITCHED MODE CONSTANT CURRENT CONTROLLER
PRODUCTION DATA - JUL 21, 2016
E522.31/33
Pin Description
Pin Name
1 AGND
2 VIN
3 ON
4 OSCIN
5 PWDIM
6 IC
7 LGATE
8 NC
9 CSN
10 CSP
11 CGATE
12 DRVS
13 PGND
14 NC
15 NC
16 NC
17 NC
18 NC
19 NC
20 OVPO
21 OVPIN
22 FBH
23 FBL
24 NC
25 ERRB
26 NC
Type ¹⁾
S
HV_S
HV_A_I
D_I
D_I
D_O
A_I
A_I
D_O
S
S
A_IO
HV_A_I
HV_A_I
HV_A_I
D_O
Description
Analog Ground. Ground pin for analog blocks. Make a short, low impedance con-
nection between this pin and GND.
High voltage supply input. Bypass with low ESR capacitance to GND.
Control input to activate/disable the IC. CMOS compatible logic input with high-
voltage capability and pulldown current.
5V & 3.3V compatible input pin with pulldown current for synchronization to
external clock. Solder to GND to use RT defined internal oscillator.
If used, a resistor matching the applied input frequency has to be connected to
RT (see RT pin description).
PWM dimming input with pullup current to V3V3. For constant LED color, PWM
is used to control brightness. 5V CMOS compatible as well as open-drain com-
patible input. If not needed, solder this pin to V3V3 for continuous operation.
Reserved for factory use. Connect to AGND in application
Dimming output for regulation circuit. Low Side Gate driver output to conrol N-
channel MOSFET types. If not needed leave this pin open.
Not connected
Negative low-side converter current sense input. The negative biased shunt re-
sistor terminal is connected to this pin.
Positive low-side converter current sense input. The positive biased shunt resis-
tor terminal is connected to this pin.
Low-Side switch gate driver output. Connect the gate of the external logic level
N-channel MOSFET to this pin.
Gate driver supply voltage. Connect a low ESR ceramic capacitor between this
pin and PGND. Connect either VSM via a decoupling resistor or an external volt-
age source to this pin.
Power Ground. Ground pin for CGATE high power drivers. Make a short, low-im-
pedance connection to GND
Not connected
Not connected
Not connected
Not connected
Not connected
Not connected
Over voltage protection output. Connect the low-side resistor of over-voltage
protection feedback to this pin.
Over voltage protection input. Connect the high side of an external resistor di-
vider for over voltage protection to this pin.
Positive high-side feedback input for regulation circuit. Connect the positive ter-
minal of sensing shunt resistor to this pin. For good regulation, keep the connec-
tion to the shunt as short as possible.
Negative high-side feedback input for regulation circuit. Connect the negative
terminal of sensing shunt resistor to this pin. For good regulation, keep the con-
nection to the shunt as short as possible.
Not connected.
Open-drain error output. Low-impedant in case of Open Load, short circuit or
over-temperature events.
Not connected.
Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Elmos Semiconductor AG
Data Sheet
QM-No.: 25DS0085E.01
3/20