MAX1570ETE+T Maxim Integrated Products, MAX1570ETE+T Datasheet - Page 8

• Manufacturer Part Number: MAX1570ETE+T
• Description: IC LED DRVR WHITE BCKLGT 16-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1570ETE+T

• Constant Current: Yes
• Topology: PWM, Step-Down (Buck), Step-Up (Boost), Switched Capacitor (Charge Pump)
• Number Of Outputs: 5
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Number Of Segments: 5
• Low Level Output Current: 30 mA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 3.5 mA
• Maximum Power Dissipation: 1349 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -
• Lead Free Status / Rohs Status: Details

White LED Current Regulator with 1x/1.5x
High-Efficiency Charge Pump
Table 1. Enable Input Modes
Table 2. Capacitor Selection
Table 3. Capacitor Manufacturers
8
COMPONENT NAME
OUTPUT
_______________________________________________________________________________________
(mA)
150
40
80
C1 and C2
EN_ INPUT LOGIC LEVELS
C
C
OUT
IN
EN1 = 0, EN2 = 0
EN1 = 0, EN2 = 1
EN1 = 1, EN2 = 0
EN1 = 1, EN2 = 1
(µF)
C
1
1
1
IN
VALUE
(µF)
0.47
0.22
4.7
1
1
(µF)
0.22
0.47
C1
1.0
MANUFACTURER
Taiyo Yuden
Taiyo Yuden
Taiyo Yuden
Taiyo Yuden
Taiyo Yuden
(µF)
0.22
0.47
1.0
C2
Shutdown mode
On, V
On, V
On, V
SET
SET
SET
C
(µF)
= 200mV, LED1 threshold = 200mV
= 400mV, LED1 threshold = 300mV
= 600mV, LED1 threshold = 400mV
4.7
4.7
4.7
OUT
JMK212BJ475MG
JMK107BJ105MA
JMK107BJ105MA
LMK107BJ474MA
LMK107BJ224KA
PART NO.
MODE
1µF ±20%, 6.3V X5R ceramic capacitor (0603)
4.7µF ±20%, 6.3V X5R ceramic capacitor (0805)
1µF ±20%, 6.3V X5R ceramic capacitor (0603)
0.47µF ±20%, 10V X5R ceramic capacitor (0603)
0.22µF ±10%, 10V X7R ceramic capacitor (0603)
DESCRIPTION
LED CURRENT
Full
1/3
2/3
0