ELM901FxA 1A 2x Charge Pump LED Driver
Parameter
Symbol
Condition
Min.
Typ. Max. Unit
Short protection circuit
ISET1&2 turn Iled to be OFF
for short protection, Vin=3.9V,
Vled=1.0V, 2x operation
Iled
(short)
Iled limit when ISET is short
1.5
A
VO short protection detection
voltage
VO short current
Vo
Iled is OFF when short protection
0.45
0.60
30
0.95
V
(short) is activated
Ishort Vin=3.6V
mA
Thermal protection circuit
Iled is OFF when thermal
protection circuit is activated
Thermal protection circuit
Fail safe circuit
OHP
150
°C
Tfs
(range)
Tfs1
Tfs2
Tfs3
Ifs
Vfs1
Vfs2
Vfs3
Fail safe set range
0.2
1.0
s
Fail safe function is OFF when
FS-VIN is short or open.
*
Fail safe time1
Fail safe time2
Fail safe time3
Fail safe current
FS threshold voltage1
FS threshold voltage2
FS threshold voltage3
0.80
0.16
0.40
10
1.00
0.20
0.50
15
1.20
0.24
0.60
20
s
s
s
μA
V
V
V
0.120 0.150 0.180
0.405 0.450 0.495
1.080 1.220 1.360
Parameter
EN logic & LED current
EN logic
Standby(output OFF)
Low current
Condition
EN1
EN2
0
0
1
1
0
1
0
1
EN1 & EN2 will be in standby mode when being
pulled down to be open.
*
High current
Low+High current
■Marking
• QFN16-4x4 package : ELM901FAA
• QFN16-3x3 package : ELM901FBA
ELM
901FAA
abc
ELM
901FBA
abc
Mark
ELM901FAA
Content
Name
Mark
ELM901FBA
Content
Name
abc
(000 to 999)
abc
(000 to 999)
Assembly lot No.
Assembly lot No.
11 - 8
ELM [ ELM ELECTRONICS ]
