BD93941EFV Datasheet, PDF (2/30 Pages) Rohm – LED pin rating 60V

BD93941EFV BD93941FP
Datasheet
Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Power supply voltage
VCC
STB, ADIM, OVP, PWM terminal voltage
STB, ADIM, OVP, PWM
LED1 to 4 terminal voltage
LED1 to 4
AUTO, REG58, CS, N, ISET, SS, FB, RT terminal
voltage
Power dissipation (HTSSOP-B20)
(HSOP20)
Operating temperature range
AUTO, REG58, CS, N,
ISET, SS, FB, RT
Pd1
Pd2
Topr
Storage temperature range
Tstg
Junction temperature
Tjmax
*1 Ta = 25°C or more, diminished at -25.6mW/°C in the case of HTSSOP-B20
(when 4-layer / 70.0 mm x 70.0 mm x 1.6 mm board is mounted)
*2 Ta = 25°C or more, diminished at -17.4mW/°C in the case of HSOP20
(when 4-layer / 70.0 mm x 70.0 mm x 1.6 mm board is mounted)
Ratings
Unit
36
V
36
V
60
V
7
V
3.20 *1
2.18 *2
W
-40 to +85
°C
-55 to +150
°C
150
°C
Operating Ratings
Parameter
Symbol
Limits
Unit
VCC supply voltage
VCC
9.0 to 35.0
V
Min. output current of LED1 to 4
Max. output current of LED1 to 4
ADIM input voltage1 (use ADIM function)
ILED_MIN
ILED_MAX
VADIM1
30
200
0.2 to 2.7
mA *1
mA
*1,2
V
ADIM input voltage1 (don’t use ADIM function)
VADIM2
REG58 to 35.0
V
DC/DC oscillation frequency
Fsw
100 to 800
kHz
Min. on-duty time for PWM light modulation
PWM_MIN
30
μs
*1 The amount of current per channel.
*2 If LED makes significant variations in its reference voltage, the driver will increase power dissipation, resulting in a rise
in package temperature.
To avoid this problem, design the board with thorough consideration given to heat radiation measures.
Pin Configuration
HTSSOP-B20
HSOP20
1
AUTO
2
REG58
3
CS
4
N
5
DCDC_GND
VCC
20
ADIM
19
RT
18
FB
17
SS
16
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
6
OVP
7
STB
8
LED1
9
LED2
10
LED_GND
ISET
15
PWM
14
LED4
13
LED3
12
N.C.
11
Figure 3. Pin Configuration
2/27
TSZ02201-0F1F0C100270-1-2
10.Oct.2013 Rev.001