BD81A04AMUV-M Datasheet, PDF (7/37 Pages) Rohm – 4ch White LED Driver with Buck-Boost and Built-in FET (32 LED Maximum)

BD81A04AMUV-M BD81A04AEFV-M
Typical Performance Curves - continued
52
52
Datasheet
51
50
VCC=12V,EN=4V
49
VLED=SWEEP
Ta=25ˆ
48
0
1
2
3
4
5
S_Su_upp_pl_py_lyVo_Vl_ota_ltg_ae_ge： V_{: V}LE_LED_D[_[V_V]_]ç
Figure 8. Output Current vs Supply Voltage
51
VCC=12V
EN=4V
VLEDʹ2V
PWMʹVREG
50
49
48
-60
-20
20
60
100
140
Temperature _： Ta[_℃]
Figure 9. Output Current vs Temperature
100
95
90
85
80
75
VCC=12V
EN=4V
70
PWM=VREG
Ta=25ˆ
65
4-LED Series, 4ch Mode
60
80
130
180
230
O_Ou_ut_tp_pu_ut_t c_Cu_ur_rr_re_en_nt_t：_: I_IL_LEE_DD_[m[m_AA_]ç]
Figure 10. Efficiency vs Output Current
(Buck-Boost Application)
100
95
90
85
80
75
VCC=12V
70
EN=4V
PWM=V_REG
65
Ta=25ˆ
7-LED Series, 4ch Mode
60
80
130
180
230
O_Ou_utp_tpu_ut c_t u_Cr_ure_rrn_et_n：_{t :}IL_IE_LED_D[[_mm_AA_]]_ç
Figure 11. Efficiency vs Output Current
(Boost Application)
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4.Dec.2013 Rev.003