NXP Semiconductors SSL2108X, Руководство пользователя, Страница: 4 / 27

UM10468 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
User manual Rev. 1 — 30 August 2011 4 of 27
NXP Semiconductors
UM10468
SSL2108X buck evaluation board
2. Safety warning
This reference board is connected to a high AC voltage (up to 250 V). Avoid touching the
demo board during operation. An isolated housing is obligatory when used in
uncontrolled, non-laboratory environments. Galvanic isolation of the mains phase using a
fixed or variable transformer (Variac) is always recommended. These devices are
recognized by the symbols shown in
Figure 1
3. Specification
[1] Refer to Section 5 for more detailed information.
a. Isolated b. Not isolated
Fig 1. Variac isolation symbols
019aab173 019aab174
Table 2. Specifications for the reference board
Parameter Value Comment
AC line input voltage
SSL21081 and SSL21082 85 V (AC) to 138 V (AC) optimized for 100 V (AC)
SSL21083 and SSL21084 230 V (AC) optimized for 100 V (AC)
Output voltage (V
LED
)
SSL21081 and SSL21082 20 V to 70 V optimized for 60 V
SSL21083 and SSL21084 20 V to 140 V optimized for 120 V
Output current (I
LED
)
SSL21081 95 mA, 70 mA, 38 mA adjust using jumpers J7A, J8A, J9A
SSL21082 160 mA, 125 mA, 105 mA adjust using jumpers J7A, J8A, J9A
SSL21083 55 mA, 35 mA, 18 mA adjust using jumpers J7A, J8A, J9A
SSL21084 80 mA, 69 mA, 53 mA adjust using jumpers J7A, J8A, J9A
Maximum LED output power (P
o(LED)
)
SSL21081 and SSL21083 6 W optimized for 6 W using dedicated loads
[1]
SSL21082 and SSL21084 15 W optimized for 10 W using dedicated loads
[1]
Switching frequency
Nominal switching frequency
(f
sw(nom)
)
100 kHz -
Board dimension (L

W

H)
SSL21081, SSL21082, SSL21083
and SSL21084 70 mm

60 mm

23 mm maximum footprint
Temperature
Operating temperature

40

C to +100

C -